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  • EL2386CSZ图
  • 深圳市正纳电子有限公司

     该会员已使用本站15年以上
  • EL2386CSZ 现货库存
  • 数量20800 
  • 厂家INTERSIL 
  • 封装SOP16 
  • 批号21+ 
  • 原装现货 欢迎咨询0755- 83790645
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  • EL2386CS图
  • 深圳市宏世佳电子科技有限公司

     该会员已使用本站13年以上
  • EL2386CS 现货库存
  • 数量4656 
  • 厂家ELANTEC 
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  • 深圳市科雨电子有限公司

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  • EL2386CS
  • 数量1001 
  • 厂家INTERSIL 
  • 封装SOP-16 
  • 批号21+ 
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  • EL2386CS图
  • 上海振基实业有限公司

     该会员已使用本站13年以上
  • EL2386CS
  • 数量1564 
  • 厂家ELANTEC 
  • 封装SMD 
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  • 上海磐岳电子有限公司

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  • EL2386CS
  • 数量5800 
  • 厂家EL 
  • 封装SOP-16 
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  • EL2386CS图
  • 深圳市顺兴源微电子商行

     该会员已使用本站7年以上
  • EL2386CS
  • 数量6890000 
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  • 封装SOP 
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  • EL2386CS图
  • 深圳市得捷芯城科技有限公司

     该会员已使用本站11年以上
  • EL2386CS
  • 数量3392 
  • 厂家EL 
  • 封装NA/ 
  • 批号23+ 
  • 原装现货,当天可交货,原型号开票
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  • EL2386CS图
  • 北京元坤伟业科技有限公司

     该会员已使用本站17年以上
  • EL2386CS
  • 数量5000 
  • 厂家 
  • 封装SOP16S 
  • 批号16+ 
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  • EL2386CS图
  • 深圳市华科泰电子商行

     该会员已使用本站13年以上
  • EL2386CS
  • 数量3860 
  • 厂家EL 
  • 封装SOP 
  • 批号06+ 
  • 绝对原装现货特价
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  • EL2386CS图
  • 深圳市硅诺电子科技有限公司

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  • EL2386CS
  • 数量10000 
  • 厂家EL 
  • 封装SOP16 
  • 批号17+ 
  • 原厂指定分销商,有意请来电或QQ洽谈
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  • EL2386CS图
  • 北京齐天芯科技有限公司

     该会员已使用本站15年以上
  • EL2386CS
  • 数量10000 
  • 厂家EL 
  • 封装SOP16 
  • 批号16+ 
  • 原装正品,假一罚十
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  • EL2386CS16图
  • 北京中其伟业科技有限公司

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  • EL2386CS16
  • 数量8332 
  • 厂家√ 欧美㊣品 
  • 封装贴◆插 
  • 批号16+ 
  • 特价,原装正品,绝对公司现货库存,原装特价!
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  • EL2386CS图
  • 长荣电子

     该会员已使用本站14年以上
  • EL2386CS
  • 数量62 
  • 厂家 
  • 封装SOP 
  • 批号14+ 
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  • EL2386CS图
  • 万三科技(深圳)有限公司

     该会员已使用本站2年以上
  • EL2386CS
  • 数量660000 
  • 厂家RENESAS(瑞萨电子) 
  • 封装SOIC-16 
  • 批号23+ 
  • 支持实单/只做原装
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  • EL2386CS图
  • 深圳市芯福林电子有限公司

     该会员已使用本站15年以上
  • EL2386CS
  • 数量36000 
  • 厂家ELANTEC 
  • 封装SOP-16 
  • 批号23+ 
  • 真实库存全新原装正品!代理此型号
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  • EL2386CS图
  • 深圳市婷轩实业有限公司

     该会员已使用本站6年以上
  • EL2386CS
  • 数量5000 
  • 厂家Intersil 
  • 封装16-SOIC 
  • 批号23+ 
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  • EL2386CS图
  • 深圳市芯福林电子有限公司

     该会员已使用本站15年以上
  • EL2386CS
  • 数量65000 
  • 厂家EL 
  • 封装SOP16 
  • 批号23+ 
  • 真实库存全新原装正品!代理此型号
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  • EL2386CS-T13图
  • 深圳市一线半导体有限公司

     该会员已使用本站11年以上
  • EL2386CS-T13
  • 数量25000 
  • 厂家原厂品牌 
  • 封装原厂外观 
  • 批号 
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  • EL2386CS图
  • 深圳市创思克科技有限公司

     该会员已使用本站2年以上
  • EL2386CS
  • 数量7800 
  • 厂家EL 
  • 封装SOP 
  • 批号20+ 
  • 全新原装原厂实力挺实单欢迎来撩
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  • EL2386CS图
  • 深圳市澳亿芯电子

     该会员已使用本站13年以上
  • EL2386CS
  • 数量
  • 厂家ELAMTEC 
  • 封装SOP-16 
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  • EL2386CS图
  • 深圳市凯睿晟科技有限公司

     该会员已使用本站10年以上
  • EL2386CS
  • 数量25000 
  • 厂家EVERLIGHT/亿光 
  • 封装SOP16 
  • 批号24+ 
  • 百域芯优势 实单必成 可开13点增值税发票
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  • EL2386CS图
  • 上海意淼电子科技有限公司

     该会员已使用本站14年以上
  • EL2386CS
  • 数量20000 
  • 厂家EL 
  • 封装SOP 
  • 批号23+ 
  • 原装现货热卖!请联系吴先生 13681678667
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  • EL2386CS图
  • 深圳市华来深电子有限公司

     该会员已使用本站13年以上
  • EL2386CS
  • 数量8560 
  • 厂家EL 
  • 封装SOP16 
  • 批号17+ 
  • 受权代理!全新原装现货特价热卖!
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  • EL2386CS图
  • 深圳市顺鑫诚电子科技有限公司

     该会员已使用本站14年以上
  • EL2386CS
  • 数量5000 
  • 厂家INTELRSIL 
  • 封装SSOP 
  • 批号18+ 
  • 保证原装正品,欢迎来电咨询
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  • EL2386CSZ图
  • 北京元坤伟业科技有限公司

     该会员已使用本站17年以上
  • EL2386CSZ
  • 数量5000 
  • 厂家EL 
  • 封装SOP14 
  • 批号16+ 
  • 百分百原装正品,现货库存
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  • EL2386CS图
  • 深圳市恒达亿科技有限公司

     该会员已使用本站16年以上
  • EL2386CS
  • 数量3500 
  • 厂家Elantec 
  • 封装SOP-16 
  • 批号23+ 
  • 全新原装现货特价销售!
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  • EL2386CSZ图
  • 深圳市恒达亿科技有限公司

     该会员已使用本站12年以上
  • EL2386CSZ
  • 数量3200 
  • 厂家EL 
  • 封装SOP-16 
  • 批号23+ 
  • 全新原装公司现货销售!
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  • EL2386CS图
  • 深圳市晶美隆科技有限公司

     该会员已使用本站15年以上
  • EL2386CS
  • 数量26800 
  • 厂家EVERLIGHT/亿光 
  • 封装SOP 
  • 批号24+ 
  • 假一罚十,原装进口正品现货供应,价格优势。
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  • EL2386CS图
  • 集好芯城

     该会员已使用本站13年以上
  • EL2386CS
  • 数量19278 
  • 厂家INTERSIL 
  • 封装SOP16 
  • 批号最新批次 
  • 原装原厂 现货现卖
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  • EL2386CS图
  • 深圳市华斯顿电子科技有限公司

     该会员已使用本站16年以上
  • EL2386CS
  • 数量36301 
  • 厂家ELANETEC 
  • 封装SMD16 
  • 批号2023+ 
  • 绝对原装正品现货/优势渠道商、原盘原包原盒
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  • EL2386CSZ图
  • 深圳市晶美隆科技有限公司

     该会员已使用本站14年以上
  • EL2386CSZ
  • 数量13510 
  • 厂家INTERSIL 
  • 封装SOP16 
  • 批号23+ 
  • 只做全新原装正品现货
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  • 绿盛电子(香港)有限公司

     该会员已使用本站12年以上
  • EL2386CSZ-T7
  • 数量26976 
  • 厂家INTERISL 
  • 封装SOP8 
  • 批号2018+ 
  • ★★代理原装现货,特价热卖!★★
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  • EL2386CS图
  • 深圳市欧立现代科技有限公司

     该会员已使用本站12年以上
  • EL2386CS
  • 数量7500 
  • 厂家ELANTEC 
  • 封装SOP-16 
  • 批号24+ 
  • ★★专业IC现货,诚信经营,市场最优价★★
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产品型号EL2386CS的概述

芯片EL2386CS的概述 EL2386CS是一款高性能的双路运算放大器芯片,广泛应用于各种电子设备中。其设计特点使其具备了较高的带宽、快速的响应时间和优异的线性度。这使得EL2386CS在音频处理、信号调理及传感器信号放大等领域具有重要的应用价值。 EL2386CS的运算放大器结构可以提供双通道的增益,且功耗相对较低,适合于便携式以及低功耗设计要求的项目。其高速响应特性使其适用于高频率信号的处理,尤其是在通信、测量与控制领域。 芯片EL2386CS的详细参数 EL2386CS的主要参数包括但不限于以下几个方面: 1. 工作电压范围: 3V至15V,适配多种供电需求。 2. 增益带宽积: 达到15MHz,使其在较高频率下也能维持稳定的增益特性。 3. 输入失调电压: 典型值为100μV,这确保了其在高精度测量中的表现。 4. 输出电流: 最大达200mA,满足多种负载的驱动能力。 5....

产品型号EL2386CS的Datasheet PDF文件预览

EL2386C  
250 MHz Triple Current Feedback Amp w/Disable  
Features  
# Triple amplifier topology  
# 3 mA supply current (per  
amplifier)  
General Description  
The EL2386C is a triple current-feedback operational amplifier  
b
a
1
which achieves a 3 dB bandwidth of 250 MHz at a gain of  
while consuming only 3 mA of supply current per amplifier. It  
g
g
will operate with dual supplies ranging from 1.5V to 6V, or  
b
# 250 MHz 3 dB bandwidth  
a
a
from single supplies ranging from 3V to 12V. The EL2386C  
also includes a disable/power-down feature which reduces cur-  
rent consumption to 0 mA while placing the amplifier output in  
a high impedance state. In spite of its low supply current, the  
# Low cost  
# Fast disable  
# Powers down to 0 mA  
# Single- and dual-supply  
g
g
EL2386C can output 55 mA while swinging to 4V on 5V  
supplies. These attributes make the EL2386C an excellent  
choice for low power and/or low voltage cable-driver, HDSL, or  
RGB applications.  
g
operation down to 1.5V  
# 0.05%/0.05 Diff. gain/Diff.  
§
phase into 150X  
# 1200V/ms slew rate  
# Large output drive current:  
55 mA  
For Single and Dual applications, consider the EL2186C/  
EL2286C. For Single, Dual and Quad applications without dis-  
able, consider the EL2180C, EL2280C, or EL2480C, all in indus-  
try standard pin outs. The EL2180C also is available in the tiny  
SOT-23 package, which is 28% the size of an SO8 package. For  
lower power applications where speed is still a concern, consider  
the EL2170C/EL2176C family which also comes in similar Sin-  
gle, Dual and Quad configurations. The EL2170C/EL2176C  
# Available in single (EL2186C)  
and dual (EL2286C) form  
# Non-power down versions  
available in single, dual, and quad  
(EL2180C, EL2280C, EL2480C)  
b
family provides a 3 dB bandwidth of 70 MHz while consum-  
ing 1 mA of supply current per amplifier.  
# Lower power EL2170C/EL2176C  
family also available  
(1 mA/70 MHz) in single, dual  
and quad.  
Connection Diagram  
EL2386C SO, P-DIP  
Applications  
# Low power/battery applications  
# HDSL amplifiers  
# Video amplifiers  
# Cable drivers  
# RGB amplifiers  
# Test equipment amplifiers  
# Current to voltage converters  
# Multiplexing  
# Video broadcast equipment  
Ordering Information  
Ý
Part No. Temp. Range  
Package Outline  
2386-1  
b
b
a
40 C to 85 C 16-Pin PDIP MDP0031  
EL2386CN  
EL2386CS  
§
§
40 C to 85 C 16-Pin SOIC MDP0027  
Top View  
a
§
§
Manufactured under U.S. Patent No. 5,418,495.  
Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a ‘‘controlled document’’. Current revisions, if any, to these  
specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.  
©
1996 Elantec, Inc.  
EL2386C  
250 MHz Triple Current Feedback Amp w/Disable  
e
Absolute Maximum Ratings (T  
Voltage between V  
25 C)  
§
12.6V  
A
a
to V  
b
a
40 C to 85 C  
150 C  
and V  
Operating Ambient Temperature Range  
Operating Junction Temperature  
Output Current  
a
b
S
§
§
§
S
Common-Mode Input Voltage  
Differential Input Voltage  
V
b
a
S
S
g
g
6V  
7.5 mA  
See Curves  
60 mA  
a
b
Current into IN or IN  
Internal Power Dissipation  
b a  
65 C to 150 C  
g
Storage Temperature Range  
§
§
Important Note:  
All parameters having Min/Max specifications are guaranteed. The Test Level column indicates the specific device testing actually  
performed during production and Quality inspection. Elantec performs most electrical tests using modern high-speed automatic test  
e
e
T
A
equipment, specifically the LTX77 Series system. Unless otherwise noted, all tests are pulsed tests, therefore T  
T
.
J
C
Test Level  
Test Procedure  
I
100% production tested and QA sample tested per QA test plan QCX0002.  
e
e
25 C ,  
II  
100% production tested at T  
25 C and QA sample tested at T  
§
§
A
A
T
and T  
per QA test plan QCX0002.  
MIN  
MAX  
QA sample tested per QA test plan QCX0002.  
Parameter is guaranteed (but not tested) by Design and Characterization Data.  
III  
IV  
V
e
Parameter is typical value at T  
25 C for information purposes only.  
§
A
DC Electrical Characteristics  
e
e
e
e
0V, T  
A
g
V
5V, R  
150X, ENABLE  
Description  
Input Offset Voltage  
25 C unless otherwise specified  
§
S
L
Test Units  
Level  
Parameter  
Conditions  
Min Typ Max  
V
2.5  
5
15  
I
V
V
I
mV  
OS  
TCV  
Average Input Offset Voltage Drift  
VOS Matching  
Measured from T  
MIN  
to T  
MAX  
mV/ C  
§
OS  
dV  
0.5  
1.5  
20  
16  
2
mV  
mA  
nA  
mA  
mA  
dB  
mA/V  
dB  
mA/V  
kX  
MX  
pF  
OS  
a
a
a
b
b
I
IN  
Input Current  
Matching  
15  
40  
a
d
I
IN  
I
V
I
IN  
Input Current  
Matching  
b
I
IN  
b
d
I
IN  
I
IN  
V
I
e
e
g
g
CMRR  
Common Mode Rejection Ratio  
V
V
V
V
V
V
3.5V  
3.5V  
45  
60  
50  
5
CM  
b
b
ICMR  
Input Current Common Mode Rejection  
30  
15  
I
CM  
e
g
g
4V to 6V  
PSRR  
Power Supply Rejection Ratio  
70  
1
I
S
S
b
b
e
g
g
4V to 6V  
IPSR  
Input Current Power Supply Rejection  
I
e
OUT  
g
R
Transimpedance  
2.5V  
120  
0.5  
300  
2
I
OL  
a
a
a
e
g
CM  
R
Input Resistance  
3.5V  
I
IN  
a
C
Input Capacitance  
1.2  
V
I
IN  
g
g
CMIR  
Common Mode Input Range  
Output Voltage Swing  
3.5  
3.5  
4.0  
4.0  
V
e
g
e a  
e a  
g
g
V
O
V
S
V
S
V
S
5V  
I
V
5V Single-Supply, High  
5V Single-Supply, Low  
4.0  
V
V
I
V
0.3  
55  
V
I
O
Output Current  
50  
mA  
2
EL2386C  
250 MHz Triple Current Feedback Amp w/Disable  
DC Electrical Characteristics  
e
e
e
e
0V, T 25 C unless otherwise specified Ð Contd.  
A
g
V
S
5V, R  
150 X, ENABLE  
§
L
Test  
Parameter  
Description  
Conditions  
Min  
Typ  
Max  
Units  
Level  
e
I
I
Supply CurrentÐEnabled (per amplifier)  
Supply CurrentÐDisabled (per amplifier)  
Output CapacitanceÐDisabled  
ENABLE  
2.0V  
3
0
6
I
I
mA  
mA  
pF  
kX  
mA  
mA  
V
S
e
e
e
e
e
ENABLE  
ENABLE  
ENABLE  
ENABLE  
ENABLE  
4.5V  
50  
S(DIS)  
C
4.5V  
4.4  
85  
V
I
OUT(DIS)  
R
ENABLE Pin Input Resistance  
2.0V to 4.5V  
4.5V  
45  
IN-EN  
IH-EN  
IL-EN  
b
I
I
ENABLE Pin Input CurrentÐHigh  
ENABLE Pin Input CurrentÐLow  
Minimum Voltage at ENABLE to Disable  
Maximum Voltage at ENABLE to Enable  
0.04  
V
V
I
b
0V  
53  
V
4.5  
DIS  
EN  
V
2.0  
I
V
AC Electrical Characteristics  
g
e
e
e
e
e
e
V
S
5V, R  
R
750 X, R  
150X, ENABLE  
0V, T  
A
25 C unless otherwise specified.  
§
F
G
L
Test  
Parameter  
Description  
Conditions  
Min  
Typ  
Max  
Units  
Level  
b
e a  
BW  
3 dB Bandwidth  
A
A
A
V
V
V
V
V
A
A
A
A
A
A
1
250  
180  
50  
V
V
V
IV  
V
V
V
V
V
V
V
V
I
MHz  
MHz  
MHz  
V/ms  
ns  
V
V
V
e a  
e a  
2
2
g
BW  
SR  
0.1 dB Bandwidth  
e
g
g
2.5V, Measured at 1.25V  
Slew Rate  
600  
1200  
1.5  
OUT  
OUT  
OUT  
OUT  
OUT  
e
e
e
e
g
t
t
, t  
Rise and Fall Time  
Propagation Delay  
Overshoot  
500 mV  
500 mV  
500 mV  
R
F
g
1.5  
ns  
PD  
g
OS  
3.0  
%
e b  
V
g
t
0.1% Settling  
2.5V, A  
1
15  
ns  
S
e a  
e a  
e a  
e a  
e a  
e
e
e
e
dG  
dP  
dG  
dP  
Differential Gain (Note 1)  
Differential Phase (Note 1)  
Differential Gain (Note 1)  
Differential Phase (Note 1)  
Turn-On Time (Note 2)  
Turn-Off Time (Note 2)  
Channel Separation  
2, R  
2, R  
1, R  
1, R  
2, V  
150X  
150X,  
500X  
500X  
0.05  
0.05  
0.01  
0.01  
40  
%
V
V
V
V
V
V
L
L
L
L
§
%
§
e a  
e
e
t
t
1V, R  
L
150X  
150X  
100  
ns  
ns  
dB  
ON  
OFF  
IN  
e a  
e a  
2, V  
IN  
1V, R  
800  
85  
2000  
I
L
e
CS  
f
5 MHz  
V
e
Note 1: DC offset from 0V to 0.714V, AC amplitude 286 mV , f  
p-p  
3.58 MHz.  
Note 2: Measured from the application of the logic signal until the output voltage is at the 50% point between initial and final  
values.  
3
EL2386C  
250 MHz Triple Current Feedback Amp w/Disable  
Test Circuit (per Amplifier)  
2386-2  
Simplified Schematic (per Amplifier)  
2386-3  
4
EL2386C  
250 MHz Triple Current Feedback Amp w/Disable  
Typical Performance Curves Ð Contd.  
Non-Inverting Frequency  
Response (Gain)  
Non-Inverting Frequency  
Response (Phase)  
Frequency Response  
for Various R and R  
F
G
2386-4  
2386-5  
2386-6  
Inverting Frequency  
Response (Gain)  
Inverting Frequency  
Response (Phase)  
Frequency Response  
for Various R and C  
L
L
2386-7  
2386-8  
2386-9  
Transimpedance (R  
vs Frequency  
)
PSRR and CMRR  
vs Frequency  
Frequency Response for  
b
OL  
Various C  
IN  
2386-10  
2386-11  
2386-12  
5
EL2386C  
250 MHz Triple Current Feedback Amp w/Disable  
Typical Performance Curves Ð Contd.  
Voltage and Current  
Noise vs Frequency  
2nd and 3rd Harmonic  
Distortion vs Frequency  
Output Voltage  
Swing vs Frequency  
238614  
238613  
238615  
b
vs Supply Voltage for  
Various Non-Inverting Gains  
b
3 dB Bandwidth and Peaking  
vs Supply Voltage for  
Various Inverting Gains  
3 dB Bandwidth and Peaking  
Output Voltage Swing  
vs Supply Voltage  
238616  
238617  
238618  
Supply Current vs  
Supply Voltage  
Common-Mode Input Range  
vs Supply Voltage  
Slew Rate vs  
Supply Voltage  
238619  
238620  
238621  
6
EL2386C  
250 MHz Triple Current Feedback Amp w/Disable  
Typical Performance Curves Ð Contd.  
Input Bias Current  
vs Die Temperature  
Short-Circuit Current  
vs Die Temperature  
Transimpedance (R )  
OL  
vs Die Temperature  
2386-23  
2386-24  
2386-22  
b
b
3 dB Bandwidth vs  
Die Temperature for  
Various Inverting Gains  
3 dB Bandwidth and Peaking  
vs Die Temperature for  
Various Non-Inverting Gains  
Input Offset Voltage  
vs Die Temperature  
2386-25  
2386-27  
2386-26  
Supply Current vs  
Die Temperature  
Input Voltage Range  
vs Die Temperature  
Slew Rate vs  
Die Temperature  
2386-28  
2386-29  
2386-30  
7
EL2386C  
250 MHz Triple Current Feedback Amp w/Disable  
Typical Performance Curves Ð Contd.  
Differential Gain and  
Phase vs DC Input  
Voltage at 3.58 MHz  
Differential Gain and  
Phase vs DC Input  
Voltage at 3.58 MHz  
Settling Time vs  
Settling Accuracy  
2386-32  
2386-31  
2386-33  
Small-Signal Step Response  
Large-Signal Step Response  
2386-34  
2386-35  
16-Pin Plastic DIP  
Maximum Power Dissipation  
vs Ambient Temperature  
16-Lead SO  
Maximum Power Dissipation  
vs Ambient Temperature  
Channel to Channel  
Isolation vs Frequency  
2386-36  
2386-37  
2386-38  
8
EL2386C  
250 MHz Triple Current Feedback Amp w/Disable  
Applications Information  
nected to the ground plane, a single 4.7 mF tanta-  
lum capacitor in parallel with a 0.1 mF ceramic  
capacitor across pins 14 and 3 will suffice.  
Product Description  
The EL2386C is a current-feedback operational  
b
amplifier that offers a wide 3 dB bandwidth of  
250 MHz, a low supply current of 3 mA per am-  
plifier and the ability to power down to 0 mA. It  
also features high output current drive. The  
EL2386C can output 55 mA per amplifier. The  
EL2386C works with supply voltages ranging  
For good AC performance, parasitic capacitance  
should be kept to a minimum especially at the  
inverting input (see the Capacitance at the In-  
verting Input section). Ground plane construc-  
tion should be used, but it should be removed  
from the area near the inverting input to mini-  
mize any stray capacitance at that node. Carbon  
or Metal-Film resistors are acceptable with the  
Metal-Film resistors giving slightly less peaking  
and bandwidth because of their additional series  
inductance. Use of sockets, particularly for the  
SO package should be avoided if possible. Sock-  
ets add parasitic inductance and capacitance  
which will result in some additional peaking and  
overshoot.  
g
from a single 3V to 6V, and it is also capable of  
swinging to within 1V of either supply on the  
input and the output. Because of its current-feed-  
back topology, the EL2386C does not have the  
normal gain-bandwidth product associated with  
voltage-feedback operational amplifiers. This al-  
b
lows its 3 dB bandwidth to remain relatively  
constant as closed-loop gain is increased. This  
combination of high bandwidth and low power,  
together with aggressive pricing make the  
EL2386C the ideal choice for many low-power/  
high-bandwidth applications such as portable  
computing, HDSL, and video processing.  
Disable/Power-Down  
The EL2386C amplifier can be disabled, placing  
its output in a high-impedance state. When dis-  
abled, the supply current is reduced to 0 mA. The  
EL2386C is disabled when its ENABLE pin is  
floating or pulled up to within 0.5V of the posi-  
tive supply. Similarly, the amplifier is enabled by  
pulling its ENABLE pin at least 3V below the  
For Single and Dual applications, consider the  
EL2186C/EL2286C. For Single, Dual and Quad  
applications without disable, consider the  
EL2180C, EL2280C, or EL2480C, all in industry  
standard pin outs. The EL2180C also is available  
in the tiny SOT-23 package, which is 28% the  
size of an SO8 package. For lower power applica-  
tions where speed is still a concern, consider the  
EL2170C/EL2176C family which also comes in  
similar Single, Dual and Quad configurations  
with 70 MHz of bandwidth while consuming  
1 mA of supply current per amplifier.  
g
positive supply. For 5V supplies, this means  
that an EL2386C amplifier will be enabled when  
ENABLE is at 2V or less, and disabled when  
ENABLE is above 4.5V. Although the logic lev-  
els are not standard TTL, this choice of logic  
voltages allows the EL2386C to be enabled by ty-  
a
ing ENABLE to ground, even in  
3V single-  
supply applications. The ENABLE pin can be  
driven from CMOS outputs or open-collector  
TTL.  
Power Supply Bypassing and Printed  
Circuit Board Layout  
As with any high-frequency device, good printed  
circuit board layout is necessary for optimum  
performance. Ground plane construction is high-  
ly recommended. Lead lengths should be as short  
as possible. The power supply pins must be well  
bypassed to reduce the risk of oscillation. The  
combination of a 4.7 mF tantalum capacitor in  
parallel with a 0.1 mF capacitor has been shown  
to work well when placed at each supply pin. For  
When enabled, supply current does vary some-  
what with the voltage applied at ENABLE. For  
example, with the supply voltages of the  
b
g
EL2186C at 5V, if ENABLE is tied to 5V  
(rather than ground) the supply current will in-  
crease about 15% to 3.45 mA.  
single supply operation, where pin 3 (V ) is con-  
S-  
9
EL2386C  
250 MHz Triple Current Feedback Amp w/Disable  
Applications Information Ð Contd.  
creased, bandwidth decreases slightly while sta-  
bility increases. Since the loop stability is im-  
proving with higher closed-loop gains, it becomes  
Capacitance at the Inverting Input  
Any manufacturer’s high-speed voltage- or cur-  
rent-feedback amplifier can be affected by stray  
capacitance at the inverting input. For inverting  
gains this parasitic capacitance has little effect  
because the inverting input is a virtual ground,  
but for non-inverting gains this capacitance (in  
conjunction with the feedback and gain resistors)  
creates a pole in the feedback path of the amplifi-  
er. This pole, if low enough in frequency, has the  
same destabilizing effect as a zero in the forward  
open-loop response. The use of large value feed-  
back and gain resistors further exacerbates the  
problem by further lowering the pole frequency.  
possible to reduce the value of R below the spec-  
F
ified 750X and still retain stability, resulting in  
only a slight loss of bandwidth with increased  
closed-loop gain.  
Supply Voltage Range and Single-  
Supply Operation  
The EL2386C has been designed to operate with  
supply voltages having a span of greater than 3V,  
and less than 12V. In practical terms, this means  
that the EL2386C will operate on dual supplies  
g
g
ranging from 1.5V to 6V. With a single-sup-  
ply, the EL2386C will operate from  
a
The experienced user with a large amount of PC  
board layout experience may find in rare cases  
that the EL2386C has less bandwidth than ex-  
pected. In this case, the inverting input may have  
less parasitic capacitance than expected. The re-  
duction of feedback resistor values (or the addi-  
tion of a very small amount of external capaci-  
tance at the inverting input, e. g. 0.5 pF) will  
increase bandwidth as desired. Please see the  
3V to  
a
12V.  
As supply voltages continue to decrease, it be-  
comes necessary to provide input and output  
voltage ranges that can get as close as possible to  
the supply voltages. The EL2386C has an input  
voltage range that extends to within 1V of either  
a
supply. So, for example, on a single 5V supply,  
curves for Frequency Response for Various R  
F
and R , and Frequency Response for Various  
the EL2386C has an input range which spans  
from 1V to 4V. The output range of the EL2386C  
is also quite large, extending to within 1V of the  
G
C
.
IN-  
g
supply rail. On a  
5V supply, the output is  
b
a
Feedback Resistor Values  
The EL2386C has been designed and specified at  
therefore capable of swinging from 4V to 4V.  
Single-supply output range is even larger because  
of the increased negative swing due to the exter-  
nal pull-down resistor to ground. On a single  
a
a
e
of feedback resistor gives 250 MHz of  
gains of 1 and 2 with R  
750X. This value  
F
b
1 with about 2.5 dB of  
3 dB  
a
to 4V.  
e a  
peaking, and 180 MHz of 3 dB bandwidth at  
5V supply, output voltage range is about 0.3V  
bandwidth at A  
V
b
2 with about 0.1 dB of peaking. Since  
e a  
the EL2386C is a current-feedback amplifier, it is  
A
V
Video Performance  
also possible to change the value of R to get  
F
more bandwidth. As seen in the curve of Fre-  
For good video performance, an amplifier is re-  
quired to maintain the same output impedance  
and the same frequency response as DC levels are  
changed at the output. This is especially difficult  
when driving a standard video load of 150X, be-  
cause of the change in output current with DC  
level. Until the EL2386C, good Differential Gain  
could only be achieved by running high idle cur-  
rents through the output transistors (to reduce  
variations in output impedance). These currents  
were typically comparable to the entire 3 mA  
supply current of each EL2386C amplifier! Spe-  
quency Response For Various R and R , band-  
G
F
width and peaking can be easily modified by  
varying the value of the feedback resistor.  
Because the EL2386C is a current-feedback am-  
plifier, its gain-bandwidth product is not a con-  
stant for different closed-loop gains. This feature  
actually allows the EL2386C to maintain about  
b
the same 3 dB bandwidth, regardless of closed-  
loop gain. However, as closed-loop gain is in-  
10  
EL2386C  
250 MHz Triple Current Feedback Amp w/Disable  
Applications Information Ð Contd.  
cial circuitry has been incorporated in the  
EL2386C to reduce the variation of output im-  
pedance with current output. This results in dG  
drive. However, other applications may have  
high capacitive loads without a back-termination  
resistor. In these applications, a small series resis-  
tor (usually between 5X and 50X) can be placed  
in series with the output to eliminate most peak-  
and dP specifications of 0.05% and 0.05 while  
a
§
driving 150X at a gain of 2.  
ing. The gain resistor (R ) can then be chosen to  
G
Video Performance has also been measured with  
a
make up for any gain loss which may be created  
by this additional resistor at the output. In many  
cases it is also possible to simply increase the val-  
ue of the feedback resistor (R ) to reduce the  
F
peaking.  
a 500X load at a gain of 1. Under these condi-  
tions, the EL2386C has dG and dP specifications  
of 0.01% and 0.01 respectively while driving  
e a  
§
500X at A  
1.  
V
For complete curves, see the Differential Gain  
and Differential Phase vs Input Voltage curves.  
Current Limiting  
The EL2386C has no internal current-limiting  
circuitry. If an output is shorted indefinitely, the  
power dissipation could easily increase such that  
the part will be destroyed. Maximum reliability  
is maintained if the output current never exceeds  
Output Drive Capability  
In spite of its low 3 mA of supply current per  
amplifier, the EL2386C is capable of providing a  
g
output drive level is unprecedented in amplifiers  
minimum of  
50 mA of output current. This  
g
60 mA. A heat sink may be required to keep  
the junction temperature below absolute maxi-  
mum when an output is shorted indefinitely.  
running at these supply currents. With a mini-  
g
capable of driving 50X loads to 2.5V, making it  
an excellent choice for driving multiple video  
loads in RGB applications.  
mum 50 mA of output drive, the EL2386C is  
g
Multiplexing with the EL2386C  
The ENABLE pins on the EL2386C allow for  
multiplexing applications. Figure 1 shows an  
EL2386C with all 3 outputs tied together, driving  
a back terminated 75X video load. Three sine  
waves of varying amplitudes and frequencies are  
applied to the three inputs, while a 1 of 3 decoder  
selects one amplifier to be on at any given time.  
Figure 2 shows the resulting output wave form at  
Driving Cables and Capacitive Loads  
When used as a cable driver, double termination  
is always recommended for reflection-free per-  
formance. For those applications, the back-termi-  
nation series resistor will decouple the EL2386C  
from the cable and allow extensive capacitive  
2386-39  
Figure 1  
11  
EL2386C  
250 MHz Triple Current Feedback Amp w/Disable  
Applications Information Ð Contd.  
These parameters are calculated as follows:  
e
a
(i * n * PD  
[ ]  
1
T
T
)
MAX  
JMAX  
MAX  
JA  
where:  
e
T
Maximum Ambient Temperature  
Thermal Resistance of the Package  
Number of Amplifiers in the Package  
MAX  
e
i
JA  
e
n
PD  
e
Maximum Power Dissipation of  
Each Amplifier in the Package.  
MAX  
PD  
MAX  
follows:  
for each amplifier can be calculated as  
2386-40  
Figure 2  
e
OUTMAX  
a
PD  
MAX  
(V V  
(2 * V * I  
)
SMAX  
S
V
. Switching is complete in about 100 ns.  
OUT  
[ ]  
2
) * (V /R )  
OUTMAX L  
S
Notice the outputs are tied directly together. De-  
coupling resistors at each output are not required  
or advised when multiplexing.  
where:  
e
V
S
Supply Voltage  
e
Power Dissipation  
With the high output drive capability of the  
I
Maximum Supply Current of 1  
Amplifier  
SMAX  
EL2386C, it is possible to exceed the 150 C Abso-  
lute Maximum junction temperature under cer-  
tain very high load current conditions. Generally  
speaking, when R falls below about 25X, it is  
L
important to calculate the maximum junction  
§
e
V
Max. Output Voltage of the  
Application  
OUTMAX  
e
R
Load Resistance  
L
temperature (T  
) for the application to deter-  
Jmax  
mine if power-supply voltages, load conditions,  
or package type need to be modified for the  
EL2386C to remain in the safe operating area.  
12  
EL2386C  
250 MHz Triple Current Feedback Amp w/Disable  
EL2386C Macromodel  
* EL2386C Macromodel  
* Revision A, July 1996  
* AC characteristics used: Rf  
* Transimpedance Stage  
*
g1 0 18 17 0 1.0  
rol 18 0 450k  
cdp 18 0 0.675pF  
*
* Output Stage  
*
q1 4 18 19 qp  
q2 7 18 20 qn  
q3 7 19 21 qn  
q4 4 20 22 qp  
r7 21 6 4  
e
e
750 ohms  
Rg  
* Pin numbers reflect a standard single opamp  
a
* Connections:  
input  
b
*
*
*
*
input  
l
l
l
l
a
V
l
l
l
supply  
b
V
l
l
supply  
output  
l
*
.subckt EL2386/EL  
l
l
l
l
l
3
2
7
4
6
*
* Input Stage  
*
r8 22 6 4  
e1 10 0 3 0 1.0  
vis 10 9 0V  
h2 9 12 vxx 1.0  
r1 2 11 400  
l1 11 12 25nH  
iinp 3 0 1.5mA  
iinm 2 0 3mA  
r12 3 0 2Meg  
*
ios1 7 19 1mA  
ios2 20 4 1mA  
*
* Supply Current  
*
ips 7 4 0.2mA  
*
* Error Terms  
*
* Slew Rate Limiting  
*
ivos 0 23 0.2mA  
vxx 23 0 0V  
e4 24 0 3 0 1.0  
e5 25 0 7 0 1.0  
h1 13 0 vis 600  
r2 13 14 1K  
d1 14 0 dclamp  
d2 0 14 dclamp  
*
b
e6 26 0 4 0 1.0  
r9 24 23 316  
r10 25 23 3.2K  
r11 26 23 3.2K  
*
* High Frequency Pole  
*
e2 30 0 14 0 0.00166666666  
l3 30 17 150nH  
c5 17 0 0.8pF  
r5 17 0 165  
* Models  
*
.model qn npn(is 5e 15 bf 200 tf 0.1nS)  
e
b
e
e
e
b
e
e
.model qp pnp(is 5e 15 bf 200 tf 0.1nS)  
e b e  
.model dclamp d(is 1e 30 ibv 0.266  
*
a
.ends  
e
e
bv 0.71v n 4)  
13  
EL2386C  
250 MHz Triple Current Feedback Amp w/Disable  
EL2386C Macromodel Ð Contd.  
2386-41  
14  
15  
EL2386C  
250 MHz Triple Current Feedback Amp w/Disable  
General Disclaimer  
Specifications contained in this data sheet are in effect as of the publication date shown. Elantec, Inc. reserves the right to make changes  
in the circuitry or specifications contained herein at any time without notice. Elantec, Inc. assumes no responsibility for the use of any  
circuits described herein and makes no representations that they are free from patent infringement.  
WARNING Ð Life Support Policy  
Elantec, Inc. products are not authorized for and should not be  
used within Life Support Systems without the specific written  
consent of Elantec, Inc. Life Support systems are equipment in-  
tended to support or sustain life and whose failure to perform  
Elantec, Inc.  
1996 Tarob Court  
when properly used in accordance with instructions provided can  
be reasonably expected to result in significant personal injury or  
death. Users contemplating application of Elantec, Inc. products  
Milpitas, CA 95035  
in Life Support Systems are requested to contact Elantec, Inc.  
Telephone: (408) 945-1323  
(800) 333-6314  
factory headquarters to establish suitable terms & conditions for  
these applications. Elantec, Inc.’s warranty is limited to replace-  
ment of defective components and does not cover injury to per-  
Fax: (408) 945-9305  
European Office: 44-71-482-4596  
sons or property or other consequential damages.  
16  
Printed in U.S.A.  
配单直通车
EL2386CS产品参数
型号:EL2386CS
生命周期:Transferred
IHS 制造商:ELANTEC
Reach Compliance Code:unknown
风险等级:5.61
Is Samacsys:N
商用集成电路类型:VIDEO AMPLIFIER
JESD-30 代码:R-PDSO-G16
功能数量:3
端子数量:16
封装主体材料:PLASTIC/EPOXY
封装形状:RECTANGULAR
封装形式:SMALL OUTLINE
认证状态:Not Qualified
表面贴装:YES
端子形式:GULL WING
端子位置:DUAL
Base Number Matches:1
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