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产品型号MAX4108ESA+的概述

MAX4108ESA+ 芯片概述 MAX4108ESA+ 是一款由 Maxim Integrated 生产的高性能运算放大器,它以其宽广的频带、低失真和高阻抗特性而受到工程师们的青睐。这款运算放大器专为高精度应用而设计,适用于信号处理、基于电流的测量、音频放大、数据采集等许多领域。其工作频率范围和输出限幅能力,使得 MAX4108ESA+ 在音频和视频应用中表现优异。同时,该芯片还具备较低的功耗和出色的热性能。 详细参数 MAX4108ESA+ 的主要技术参数包括: - 增益带宽积 (GBW): 1 MHz - 输入偏置电流: 50 nA - 输入失调电压: 300 µV - 典型的工作电压: 2V 至 36V(双极性供电) - 电源电流: 1.1 mA - 输出电压摆幅: 0V 至 (V_supply - 1.5)V - 共模抑制比 (CMRR): 100 dB - 温度范围: -4...

产品型号MAX4108ESA+的Datasheet PDF文件预览

19-0461; Rev 2; 4/97  
4 0 0 MHz, Ult ra -Lo w -Dis t o rt io n Op Am p s  
18/MAX4309  
_______________Ge n e ra l De s c rip t io n  
____________________________Fe a t u re s  
The MAX4108/MAX4109/MAX4308/MAX4309 op amps  
combine ultra-high-speed performance with ultra-low-  
distortion operation. The MAX4108 is compensated for  
unity-g a in s ta b ility; the MAX4109, MAX4308, a nd  
MAX4309 are compensated for minimum closed-loop  
High Speed:  
400MHz Unity-Gain Bandwidth (MAX4108)  
225MHz -3dB Bandwidth (A  
220MHz -3dB Bandwidth (A  
= +2, MAX4109)  
= +5, MAX4308)  
= +10, MAX4309)  
VCL  
VCL  
VCL  
gains (A ) of 2V/V, 5V/V, and 10V/V, respectively.  
VCL  
200MHz -3dB Bandwidth (A  
The MAX4108 delivers a 400MHz unity-gain bandwidth  
with a 1200V/µs slew rate. An ultra-low-distortion design  
p rovid e s a n unp re c e d e nte d s p urious -fre e d yna mic  
1200V/µs Slew Rate  
Excellent Spurious-Free Dynamic Range:  
-93dBc at f = 5MHz (MAX4108)  
range of -93dBc (MAX4108) at 5MHz (V  
= 2Vp-p, R  
OUT  
L
C
= 100), making these amplifiers ideal for high-perfor-  
mance RF signal processing.  
-90dBc at f = 5MHz (MAX4109)  
C
100MHz 0.1dB Gain Flatness (MAX4108)  
High Full-Power Bandwidth: 300MHz  
These high-speed op amps feature a wide output volt-  
age swing and a high-current output-drive capability of  
90mA.  
(MAX4108, V = 2Vp-p)  
O
High Output Drive: 90mA  
Output Short-Circuit Protected  
Low Differential Gain/Phase: 0.004%/0.008°  
________________________Ap p lic a t io n s  
High-Speed ADC/DAC Preamp  
RGB and Composite Video  
High-Performance Receivers  
Pulse/RF Amplifier  
______________Ord e rin g In fo rm a t io n  
PART  
TEMP. RANGE  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
Active Filters  
MAX4108ESA  
MAX4109ESA  
MAX4308ESA  
MAX4309ESA  
8 SO  
Ultrasound  
8 SO  
Broadcast and High-Definition TV  
8 SO  
8 SO  
________Typ ic a l Ap p lic a t io n Circ u it  
__________________P in Co n fig u ra t io n  
300  
300Ω  
TOP VIEW  
53.6*  
10Ω  
1
2
3
4
8
7
6
5
V
N.C.  
IN-  
CC  
12-BIT ADC  
MAX4109  
MAX4108  
MAX4109  
MAX4308  
MAX4309  
V
CC  
300Ω  
60*  
OUT  
IN+  
V
EE  
V
EE  
300Ω  
* USED TO MATCH A 50Ω  
SOURCE IMPEDANCE  
SO  
DIFFERENCE AMPLIFIER/ADC PREAMPLIFIER  
________________________________________________________________ Maxim Integrated Products  
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800  
4 0 0 MHz, Ult ra -Lo w -Dis t o rt io n Op Am p s  
ABSOLUTE MAXIMUM RATINGS  
Supply Voltage (V to V )..................................................12V  
Operating Temperature Range ...........................-40°C to +85°C  
Storage Temperature Range .............................-65°C to +150°C  
Junction Temperature ......................................................+150°C  
Lead Temperature (soldering, 10sec) .............................+300°C  
CC  
EE  
Voltage on Any Pin to Ground or  
Any Other Pin ..............................(V - 0.3V) to (V + 0.3V)  
EE  
CC  
Short-Circuit Duration (OUT to GND).........................Continuous  
Continuous Power Dissipation (T = +70°C)  
A
SO (derate 5.88mW/°C above +70°C)........................471mW  
Stresses beyond those listed under Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional  
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to  
absolute maximum rating conditions for extended periods may affect device reliability.  
ELECTRICAL CHARACTERISTICS  
(V = +5V, V = -5V, T = T  
to T  
, typical values are at T = +25°C, unless otherwise noted.)  
CC  
EE  
A
MIN  
MAX  
A
PARAMETER  
SYMBOL  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
DC SPECIFICATIONS (R = )  
L
Input Offset Voltage  
Input Offset Voltage Drift  
Input Bias Current  
V
V
= 0V  
= 0V  
1
13  
8
mV  
µV/°C  
µA  
OS  
OUT  
TCV  
V
OUT  
OS  
I
V
OUT  
= 0V, V = -V  
OS  
12  
34  
B
IN  
Input Offset Current  
I
OS  
V
OUT  
= 0V, V = -V  
OS  
0.05  
2.5  
µA  
IN  
Common-Mode Input  
Resistance  
R
C
Either input  
1.5  
1
MΩ  
INCM  
Common-Mode Input  
Capacitance  
Either input  
f = 10kHz  
pF  
INCM  
Input Voltage Noise  
e
6
75  
2
nV/Hz  
n
Integrated Voltage Noise  
Input Current Noise  
E
f
B
= 1MHz to 100MHz  
µV  
RMS  
nRMS  
i
n
f = 10kHz  
= 1MHz to 100MHz  
pA/Hz  
nA  
Integrated Current Noise  
Common-Mode Input Voltage  
Common-Mode Rejection  
Power-Supply Rejection  
Open-Loop Voltage Gain  
Quiescent Supply Current  
I
n
f
B
25  
RMS  
V
-2.5  
70  
2.5  
27  
V
CM  
CMR  
PSR  
V
CM  
= ±2.5V  
100  
90  
dB  
dB  
dB  
mA  
V = ±4.5V to ±5.5V  
S
70  
A
V
OUT  
= ±2.0V, V = 0V, R = 100Ω  
70  
100  
20  
OL  
CM  
L
I
S
V
IN  
= 0V  
2.5 to  
-3.1  
2.9 to  
-3.8  
18/MAX4309  
R
= ∞  
L
Output Voltage Swing  
V
V
OUT  
2.5 to  
-3.1  
2.7 to  
-3.7  
R
R
= 100Ω  
L
L
Output Current Drive  
I
= 33, T = 0°C to +85°C  
65  
90  
mA  
mA  
OUT  
A
Short-Circuit Output Current  
I
Short to ground  
100  
SC  
AC SPECIFICATIONS (R = 100)  
L
MAX4108  
MAX4109  
MAX4308  
MAX4309  
400  
225  
220  
200  
-3dB Bandwidth  
BW  
V
OUT  
0.1V  
MHz  
-3dB  
RMS  
2
_______________________________________________________________________________________  
4 0 0 MHz, Ult ra -Lo w -Dis t o rt io n Op Am p s  
18/MAX4309  
ELECTRICAL CHARACTERISTICS (continued)  
(V = +5V, V = -5V, T = T  
to T  
, typical values are at T = +25°C, unless otherwise noted.)  
CC  
EE  
A
MIN  
MAX  
A
PARAMETER  
SYMBOL  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
AC SPECIFICATIONS (R = 100) (continued)  
L
MAX4108  
MAX4109  
MAX4308  
MAX4309  
300  
200  
190  
130  
100  
25  
Full-Power Bandwidth  
0.1dB Gain Flatness  
FPBW  
V
= 2Vp-p  
MHz  
OUT  
MAX4108, A  
MAX4109, A  
MAX4308, A  
MAX4309, A  
= +1  
= +2  
= +5  
= +10  
VCL  
VCL  
VCL  
VCL  
BW  
MHz  
0.1dB  
100  
30  
Slew Rate  
SR  
-2V V  
2V  
1200  
8
V/µs  
ns  
OUT  
To 0.1%  
Settling Time  
t
S
-1V V  
OUT  
1V  
To 0.01%  
12  
-2V V  
2V  
OUT  
3
2
Rise/Fall Times  
t , t  
R
10% to 90%  
ns  
F
-50mV V  
50mV  
OUT  
Differential Gain  
Differential Phase  
Input Capacitance  
Output Resistance  
DG  
DP  
f = 3.58MHz, R = 150Ω  
0.004  
%
degrees  
pF  
L
f = 3.58MHz, R = 150Ω  
0.008  
L
C
2
1
IN  
R
f = 10MHz  
OUT  
f
R
= 5MHz,  
C
-93  
-81  
-90  
-80  
-83  
-80  
-83  
-80  
= 100Ω  
L
L
L
L
L
L
L
L
MAX4108,  
V
= 2Vp-p, A  
= +1  
= +2  
= +5  
= +10  
OUT  
VCL  
VCL  
VCL  
VCL  
f
= 20MHz,  
C
R
= 100Ω  
f
= 5MHz,  
C
R
= 100Ω  
MAX4109,  
= 2Vp-p, A  
V
OUT  
f
= 20MHz,  
C
R
= 100Ω  
Spurious-Free Dynamic Range  
SFDR  
dBc  
f
= 5MHz,  
C
R
= 100Ω  
MAX4308,  
= 2Vp-p, A  
V
OUT  
f
= 20MHz,  
C
R
= 100Ω  
f
= 5MHz,  
C
R
= 100Ω  
MAX4309,  
= 2Vp-p, A  
V
OUT  
f
= 20MHz,  
C
R
= 100Ω  
MAX4108  
MAX4109  
MAX4308  
MAX4309  
39  
36  
46  
43  
Third-Order Intercept  
IP3  
f
C
= 10MHz  
dBm  
_______________________________________________________________________________________  
3
4 0 0 MHz, Ult ra -Lo w -Dis t o rt io n Op Am p s  
__________________________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s  
(V = +5V, V = -5V, R = 100, T = +25°C, unless otherwise noted.)  
CC  
EE  
L
A
MAX4108  
MAX4108  
MAX4109  
SMALL-SIGNAL GAIN vs. FREQUENCY  
LARGE-SIGNAL GAIN vs. FREQUENCY  
SMALL-SIGNAL GAIN vs. FREQUENCY  
2
4
2
1
V
A
VCL  
= 2Vp-p  
= +1  
V
OUT  
100mVp-p  
V
OUT  
100mVp-p  
OUT  
3
2
1
0
1
0
A
VCL  
= +2  
A
VCL  
= +1  
0
-1  
-2  
-3  
-4  
-5  
-6  
-7  
-8  
-1  
-2  
A
VCL  
= +2  
-3  
-4  
-5  
-6  
-7  
-1  
-2  
-3  
-4  
-5  
A
VCL  
= +5  
-8  
-6  
0.1  
1
10  
100  
1000  
0.1  
1
10  
100  
1000  
0.1  
1
10  
100  
1000  
FREQUENCY (MHz)  
FREQUENCY (MHz)  
FREQUENCY (MHz)  
MAX4109  
MAX4309  
MAX4308  
LARGE-SIGNAL GAIN vs. FREQUENCY  
SMALL-SIGNAL GAIN vs. FREQUENCY  
SMALL-SIGNAL GAIN vs. FREQUENCY  
4
3
4
3
2
1
V
A
VCL  
= 2Vp-p  
= +2  
OUT  
V
A
VCL  
100mVp-p  
= +5  
V
OUT  
100mVp-p  
OUT  
2
2
0
-1  
-2  
-3  
-4  
-5  
-6  
-7  
-8  
A
= +10  
VCL  
1
1
0
0
-1  
-2  
-3  
-4  
-5  
-6  
-1  
-2  
-3  
-4  
-5  
-6  
A
VCL  
= +20  
0.1  
1
10  
100  
1000  
0.1  
1
10  
100  
1000  
1
10  
100  
1000  
FREQUENCY (MHz)  
FREQUENCY (MHz)  
FREQUENCY (MHz)  
18/MAX4309  
MAX4308/MAX4309  
MAX4108  
MAX4109  
LARGE-SIGNAL GAIN vs. FREQUENCY  
HARMONIC DISTORTION vs. FREQUENCY  
HARMONIC DISTORTION vs. FREQUENCY  
10  
-40  
-50  
4
3
V
A
VCL  
= 2Vp-p  
= +2  
V
A
VCL  
= 2Vp-p  
= +1  
OUT  
OUT  
V
OUT  
= 2Vp-p  
-10  
2
MAX4308  
= +5  
-60  
A
VCL  
1
-30  
-50  
0
-70  
-1  
-2  
-3  
-4  
-5  
-6  
-80  
-70  
2ND HARMONIC  
-90  
2ND HARMONIC  
1
MAX4309  
= +10  
-90  
-100  
-110  
A
VCL  
3RD HARMONIC  
10  
3RD HARMONIC  
10 100  
-110  
0.1  
1
10  
FREQUENCY (MHz)  
100  
1000  
0.1  
0.1  
1
100  
FREQUENCY (MHz)  
FREQUENCY (MHz)  
4
_______________________________________________________________________________________  
4 0 0 MHz, Ult ra -Lo w -Dis t o rt io n Op Am p s  
18/MAX4309  
____________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s (c o n t in u e d )  
(V = +5V, V = -5V, R = 100, T = +25°C, unless otherwise noted.)  
CC  
EE  
L
A
MAX4108  
HARMONIC DISTORTION vs. LOAD  
MAX4109  
HARMONIC DISTORTION vs. LOAD  
MAX4308/MAX4309  
HARMONIC DISTORTION vs.FREQUENCY  
-20  
-30  
-40  
-50  
-60  
-70  
-80  
-90  
-100  
-30  
-40  
-50  
-60  
-30  
-40  
-50  
-60  
A
V
= +1  
= 2Vp-p  
V
= 2Vp-p  
A
= +2  
= 2Vp-p  
VCL  
OUT  
VCL  
MAX4308: A = +5  
MAX4309: A = +10  
VCL  
V
OUT  
VCL  
OUT  
f = 20MHz  
O
f = 20MHz  
O
-70  
-80  
-70  
-80  
2ND HARMONIC  
2ND HARMONIC  
2ND HARMONIC  
3RD  
HARMONIC  
3RD HARMONIC  
-90  
-90  
3RD HARMONIC  
-100  
-100  
0.1  
1
10  
100  
10  
100  
1000  
10  
100  
1000  
FREQUENCY (MHz)  
RESISTIVE LOAD ()  
RESISTIVE LOAD ()  
MAX4308/MAX4309  
MAX4108  
MAX4109  
HARMONIC DISTORTION vs. LOAD  
HARMONIC DISTORTION vs. OUTPUT SWING  
HARMONIC DISTORTION vs. OUTPUT SWING  
-20  
-30  
-40  
-50  
-60  
-70  
-80  
-90  
-100  
-30  
-40  
-50  
-60  
-30  
-40  
-50  
-60  
A
VCL  
= +1  
A
VCL  
= +2  
V
OUT  
= 2Vp-p  
V
OUT  
= 2Vp-p  
V
OUT  
= 2Vp-p  
f = 5MHz  
O
f = 20MHz  
O
f = 20MHz  
O
MAX4308: A = +5  
VCL  
MAX4309: A = +10  
VCL  
-70  
-80  
-70  
-80  
2ND HARMONIC  
2ND HARMONIC  
2ND HARMONIC  
3RD HARMONIC  
-90  
-90  
3RD HARMONIC  
3RD HARMONIC  
-100  
-100  
10  
100  
1000  
0.1  
1
10  
0.1  
1
10  
RESISTIVE LOAD ()  
OUTPUT SWING (Vp-p)  
OUTPUT SWING (Vp-p)  
MAX4109  
TWO-TONE THIRD-ORDER INTERCEPT  
vs. FREQUENCY  
MAX4308/MAX4309  
HARMONIC DISTORTION  
vs. OUTPUT SWING  
INPUT VOLTAGE NOISE  
vs. FREQUENCY  
100  
10  
1
-20  
-30  
-40  
-50  
-60  
-70  
-80  
-90  
-100  
45  
40  
35  
30  
V
= 2Vp-p  
OUT  
f = 5MHz  
O
MAX4308: A = +5  
MAX4309: A = +10  
VCL  
VCL  
25  
20  
2ND HARMONIC  
15  
10  
3RD HARMONIC  
1
10  
100  
1k  
10k 100k 1M  
1
10  
100  
0.1  
1
10  
FREQUENCY (Hz)  
FREQUENCY (MHz)  
RESISTIVE LOAD ()  
_______________________________________________________________________________________  
5
4 0 0 MHz, Ult ra -Lo w -Dis t o rt io n Op Am p s  
____________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s (c o n t in u e d )  
(V = +5V, V = -5V, R = 100, T = +25°C, unless otherwise noted.)  
CC  
EE  
L
A
MAX4108  
MAX4109  
MAX4108  
DIFFERENTIAL GAIN AND PHASE  
DIFFERENTIAL GAIN AND PHASE  
DIFFERENTIAL GAIN AND PHASE  
(R = 75)  
L
(R = 150)  
L
(R = 150)  
L
A
VCL  
= +2V  
A
VCL  
= +1V  
A
VCL  
= +1V  
0.008  
0.006  
0.004  
0.002  
0.000  
-0.002  
0.004  
0.002  
0.000  
-0.002  
-0.004  
0.004  
0.002  
0.000  
-0.002  
-0.004  
0
100  
0
100  
0
100  
100  
IRE  
IRE  
IRE  
A
VCL  
= +1V  
0.002  
0.000  
-0.002  
-0.004  
-0.006  
A
VCL  
= +2V  
0.004  
0.002  
0.000  
-0.002  
-0.004  
0.006  
0.004  
0.002  
0.000  
-0.002  
A
VCL  
= +1V  
0
100  
0
100  
0
IRE  
IRE  
IRE  
MAX4109  
MAX4308  
MAX4309  
DIFFERENTIAL GAIN AND PHASE  
DIFFERENTIAL GAIN AND PHASE  
DIFFERENTIAL GAIN AND PHASE  
(R = 75)  
L
(R = 150)  
L
(R = 150)  
L
A
VCL  
= +2V  
A
VCL  
= +5V  
A
VCL  
= +10V  
0.006  
0.004  
0.002  
0.000  
-0.002  
0.002  
0.000  
-0.002  
-0.004  
-0.006  
0.004  
0.002  
0.000  
-0.002  
-0.004  
0
100  
100  
0
100  
0
100  
IRE  
IRE  
IRE  
0.002  
0.000  
-0.002  
-0.004  
-0.006  
-0.008  
-0.010  
A
VCL  
= +2V  
A
VCL  
= +10V  
0.006  
0.004  
0.002  
0.000  
-0.002  
A
VCL  
= +5V  
0.004  
0.002  
0.000  
-0.002  
-0.004  
0
0
100  
0
100  
IRE  
IRE  
IRE  
MAX4108  
SMALL-SIGNAL PULSE RESPONSE  
MAX4108  
SMALL-SIGNAL PULSE RESPONSE  
MAX4108  
LARGE-SIGNAL PULSE RESPONSE  
18/MAX4309  
(A = +1)  
VCL  
(A = +2)  
VCL  
(A = +1)  
VCL  
MAX4108/9-AA  
MAX4108/9-Y  
MAX4108/9-Z  
GND  
GND  
GND  
IN  
IN  
IN  
GND  
GND  
OUT  
OUT  
GND  
OUT  
TIME (10ns/div)  
TIME (10ns/div)  
TIME (10ns/div)  
6
_______________________________________________________________________________________  
4 0 0 MHz, Ult ra -Lo w -Dis t o rt io n Op Am p s  
18/MAX4309  
____________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s (c o n t in u e d )  
(V = +5V, V = -5V, R = 100, T = +25°C, unless otherwise noted.)  
CC  
EE  
L
A
MAX4109  
MAX4108  
MAX4109  
LARGE-SIGNAL PULSE RESPONSE  
LARGE-SIGNAL PULSE RESPONSE  
SMALL-SIGNAL PULSE RESPONSE  
(A = +2)  
VCL  
(A = +2)  
VCL  
(A = +2)  
VCL  
MAX4108/9-DD  
MAX4108/9-CC  
MAX4108/9-BB  
GND  
GND  
GND  
GND  
GND  
IN  
IN  
IN  
GND  
OUT  
OUT  
OUT  
TIME (10ns/div)  
TIME (10ns/div)  
TIME (10ns/div)  
MAX4308  
MAX4308  
MAX4309  
SMALL-SIGNAL PULSE RESPONSE  
LARGE-SIGNAL PULSE RESPONSE  
SMALL-SIGNAL PULSE RESPONSE  
(A = +5)  
VCL  
(A = +5)  
VCL  
(A = +10)  
VCL  
MAX4108/9EE  
MAX4108/9FF  
MAX4108/9GG  
IN  
GND  
GND  
GND  
GND  
IN  
IN  
GND  
GND  
OUT  
OUT  
OUT  
TIME (10ns/div)  
TIME (10ns/div)  
TIME (10ns/div)  
MAX4309  
MAX4309  
MAX4309  
SMALL-SIGNAL PULSE RESPONSE  
LARGE-SIGNAL PULSE RESPONSE  
LARGE-SIGNAL PULSE RESPONSE  
(A = +20)  
VCL  
(A = +10)  
VCL  
(A = +20)  
VCL  
MAX4108/9HH  
MAX4108/9ii  
MAX4108/9JJ  
GND  
GND  
IN  
GND  
GND  
IN  
IN  
GND  
GND  
OUT  
OUT  
OUT  
TIME (10ns/div)  
TIME (10ns/div)  
TIME (10ns/div)  
_______________________________________________________________________________________  
7
4 0 0 MHz, Ult ra -Lo w -Dis t o rt io n Op Am p s  
____________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s (c o n t in u e d )  
(V = +5V, V = -5V, R = 100, T = +25°C, unless otherwise noted.)  
CC  
EE  
L
A
POWER-SUPPLY REJECTION  
vs. FREQUENCY  
COMMON-MODE REJECTION  
vs. FREQUENCY  
CLOSED-LOOP OUTPUT IMPEDANCE  
vs. FREQUENCY  
100  
110  
1000  
100  
90  
80  
70  
60  
100  
90  
MAX4108/MAX4308  
MAX4108/MAX4308  
80  
70  
MAX4109/  
MAX4309  
MAX4109/  
MAX4309  
50  
40  
30  
20  
10  
60  
50  
40  
30  
20  
10  
1
0
10  
0.1  
0.2  
1
10  
100  
1000  
0.1  
1
10  
100  
1000  
0.1  
1
10  
100  
1000  
FREQUENCY (MHz)  
FREQUENCY (MHz)  
FREQUENCY (MHz)  
OUTPUT SWING  
vs. LOAD RESISTANCE  
INPUT OFFSET VOLTAGE  
vs. TEMPERATURE  
INPUT BIAS CURRENT  
vs. TEMPERATURE  
4.0  
3.5  
3.0  
2.0  
1.8  
1.6  
25  
23  
21  
19  
17  
2.5  
2.0  
1.5  
1.4  
1.2  
1.0  
15  
13  
11  
9
1.0  
0.5  
0
0.8  
0.6  
0.4  
7
5
10  
30  
50  
70  
90 110 130 150  
-75 -50 -25  
0
25 50 75 100 125  
-75 -50 -25  
0
25 50 75 100 125  
LOAD RESISTANCE ()  
TEMPERATURE (°C)  
TEMPERATURE (°C)  
18/MAX4309  
OUTPUT SWING  
vs. TEMPERATURE  
POWER-SUPPLY CURRENT  
vs. TEMPERATURE  
INPUT OFFSET CURRENT  
vs. TEMPERATURE  
5.0  
4.0  
30  
0.100  
0.080  
POSITIVE SUPPLY CURRENT  
R = ∞  
L
20  
10  
3.0  
R = 100Ω  
L
2.0  
1.0  
0.0  
0
0.060  
0.040  
0.020  
-1.0  
-2.0  
-10  
-20  
NEGATIVE SUPPLY CURRENT  
-3.0  
-4.0  
-5.0  
R = 100Ω  
L
R = ∞  
L
-30  
-75 -50 -25  
0
25 50 75 100 125  
-75 -50 -25  
0
25 50 75 100 125  
-75 -50 -25  
0
25 50 75 100 125  
TEMPERATURE (°C)  
TEMPERATURE (°C)  
TEMPERATURE (°C)  
8
_______________________________________________________________________________________  
4 0 0 MHz, Ult ra -Lo w -Dis t o rt io n Op Am p s  
18/MAX4309  
Inverting and Noninverting Configurations  
_____________________P in De s c rip t io n  
The values of the gain-setting feedback and input resis-  
tors are important design considerations. Large resistor  
values will increase voltage noise, and will interact with  
the amplifiers input and PC board capacitance to gen-  
erate undesirable poles and zeros, which can decrease  
bandwidth or cause oscillations. For example, a nonin-  
verting gain of +2, using 1kresistors combined with  
2pF of input capacitance and 0.5pF of board capaci-  
tance, will cause a feedback pole at 128MHz. If this  
pole is within the anticipated amplifier bandwidth, it will  
jeopardize stability. Reducing these 1kresistors to  
100will extend the pole frequency to 1.28GHz, but  
could limit output swing by adding 200in parallel with  
the amplifiers load. Clearly, the selection of resistor val-  
ues must be tailored to the specific application.  
PIN  
1
NAME  
N.C.  
IN-  
FUNCTION  
No Connection. Not internally connected.  
Inverting Input  
2
3
IN+  
Noninverting Input  
4, 5  
6
V
EE  
Negative Power Supply, connect to -5V  
.
DC  
OUT  
Amplifier Output  
Positive Power Supply, connect to +5V  
7, 8  
V
CC  
.
DC  
_______________De t a ile d De s c rip t io n  
Ch o o s in g Re s is t o r Va lu e s  
Unity-Gain Configuration  
The MAX4108 is internally compensated for unity gain.  
When configured for unity gain, the device requires a  
small resistor in series with the feedback path. This  
resistor improves the AC response by reducing the Q  
of the tank circuit, which is formed by parasitic feed-  
back inductance and capacitance.  
The MAX4108/MAX4109/MAX4308/MAX4309 are ultra-  
low-distortion, high-bandwidth op amps. The output  
distortion will be degraded as the total load resistance  
seen by the amplifier decreases. To minimize distortion  
products, keep the input and gain-setting resistors rela-  
tively large. A 500feedback resistor combined with  
an appropriate input resistor to set the gain will provide  
excellent AC performance without significantly increas-  
ing distortion.  
R
G
R
F
25  
MAX4108  
20  
MAX4308  
15  
R
S
V
IN  
R
L
C
L
MAX4109/MAX4309  
10  
5
0
PART  
R ()  
R () GAIN (V/V)  
G
F
MAX4108  
MAX4109  
MAX4308  
MAX4309  
24  
1
2
500  
500  
500  
500  
125  
56  
10 40  
70  
100 130 160 190 220  
5
CAPACITANCE (pF)  
10  
Figure 1a. Using an Isolation Resistor for High Capacitive  
Loads  
Figure 1b. Optimal Isolation Resistor (R ) vs. Capacitive Load  
S
_______________________________________________________________________________________  
9
4 0 0 MHz, Ult ra -Lo w -Dis t o rt io n Op Am p s  
eliminates this problem, and Figure 1b is a graph of the  
Drivin g Ca p a c it ive Lo a d s  
The MAX4108/MAX4109/MAX4308/MAX4309 are opti-  
mized for AC performance. They are not designed to  
d rive hig hly re a c tive loa d s . Re a c tive loa d s will  
decrease phase margin and may produce excessive  
ringing and oscillation. Figure 1a shows a circuit that  
op tima l is ola tion re s is tor (R ) vs . c a p a c itive loa d .  
S
Figures 2a–2d show how a capacitive load causes  
excessive peaking of the amplifiers bandwidth if the  
capacitive load is not isolated (R ) from the amplifier. A  
S
small isolation resistor (usually 15to 22) placed  
12  
20  
R = 0Ω  
R = 0Ω  
S
S
10  
18  
C = 15pF  
L
C = 15pF  
L
A
= +1  
A
= +2  
VCL  
VCL  
8
6
16  
14  
12  
10  
8
C = 10pF  
L
4
C = 10pF  
L
2
0
-2  
6
C = 5pF  
L
4
-4  
-6  
-8  
C = 5pF  
L
2
0
0.1  
1
10  
FREQUENCY (MHz)  
100  
1000  
0.1  
1
10  
FREQUENCY (MHz)  
100  
1000  
Figure 2a. MAX4108 Response vs. Capacitive LoadNo  
Figure 2b. MAX4109 Response vs. Capacitive LoadNo  
Resistive (R ) Isolation (circuit shown in Figure 1a)  
Resistive (R ) Isolation (circuit shown in Figure 1a)  
S
S
4
4
R = 0Ω  
R = 0Ω  
S
3
S
3
A
= +10  
A
= +5  
VCL  
VCL  
2
1
2
1
C = 15pF  
L
C = 15pF  
L
18/MAX4309  
0
0
-1  
-2  
-3  
-1  
-2  
-3  
C = 5pF  
L
C = 10pF  
L
C = 10pF  
L
-4  
-5  
-6  
-4  
-5  
-6  
C = 5pF  
L
0.1  
1
10  
FREQUENCY (MHz)  
100  
1000  
0.1  
1
10  
FREQUENCY (MHz)  
100  
1000  
Figure 2d. MAX4309 Response vs. Capacitive LoadNo  
Resistive (R ) Isolation (circuit shown in Figure 1a)  
Figure 2c. MAX4308 Response vs. Capacitive LoadNo  
Resistive (R ) Isolation (circuit shown in Figure 1a)  
S
S
10 ______________________________________________________________________________________  
4 0 0 MHz, Ult ra -Lo w -Dis t o rt io n Op Am p s  
18/MAX4309  
before the reactive load prevents ringing and oscilla-  
tion. At higher capacitive loads, AC performance will be  
controlled by the interaction of the load capacitance  
and isolation resistor. Figures 3a–3c show the effect of  
a n is ola tion re s is tor on the MAX4108/MAX4109/  
MAX4308/MAX4309 closed-loop response.  
11  
10  
C = 10pF  
L
A
VCL  
= +2  
9
8
7
6
Coaxial cable and other transmission lines are easily  
driven when terminated at both ends with their charac-  
te ris tic imp e d a nc e . Whe n d riving b a c k-te rmina te d  
transmission lines, the capacitance of the transmission  
line is essentially eliminated.  
R = 8.2Ω  
S
5
4
3
ADC In p u t Bu ffe rs  
Input buffer amplifiers can be a source of significant  
errors in high-speed ADC applications. The input buffer  
is usually required to rapidly charge and discharge the  
ADCs input, which is often capacitive (see the section  
Driving Capacitive Loads). In addition, a high-speed  
ADCs input impedance often changes very rapidly  
during the conversion cycle, requiring an amplifier with  
very low output impedance at high frequencies to main-  
tain measurement accuracy. The combination of high  
speed, fast slew rate, low noise, and a low and stable  
distortion over load makes the MAX4108/MAX4109/  
MAX4308/MAX4309 ideally suited for use as buffer  
amplifiers in high-speed ADC applications.  
R = 15Ω  
S
2
1
0.1  
1
10  
FREQUENCY (MHz)  
100  
1000  
Figure 3b. MAX4308 Response vs. Capacitive Load with  
Resistive (R ) Isolation (circuit shown in Figure 1a)  
S
12  
4
C = 10pF  
L
10  
C = 10pF  
L
A = +5  
V
3
2
A
VCL  
= +1  
8
6
4
2
0
R = 10Ω  
S
1
R = 22Ω  
S
0
-1  
-2  
-3  
-4  
-5  
-6  
R = 8.2Ω  
S
R = 15Ω  
S
R = 30Ω  
S
-2  
-4  
-6  
-8  
R = 47Ω  
S
0.1  
1
10  
FREQUENCY (MHz)  
100  
1000  
0.1  
1
10  
100  
1000  
FREQUENCY (MHz)  
Figure 3a. MAX4108 Response vs. Capacitive Load with  
Figure 3c. MAX4108/MAX4309 Response vs. Capacitive Load  
Resistive (R ) Isolation (circuit shown in Figure 1a)  
with Resistive (R ) Isolation (circuit shown in Figure 1a)  
S
S
______________________________________________________________________________________ 11  
4 0 0 MHz, Ult ra -Lo w -Dis t o rt io n Op Am p s  
___________________Ch ip In fo rm a t io n  
TRANSISTOR COUNT: 57  
SUBSTRATE CONNECTED TO V  
EE  
________________________________________________________P a c k a g e In fo rm a t io n  
18/MAX4309  
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are  
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.  
12 __________________Ma x im In t e g ra t e d P ro d u c t s , 1 2 0 S a n Ga b rie l Drive , S u n n yva le , CA 9 4 0 8 6 (4 0 8 ) 7 3 7 -7 6 0 0  
© 1997 Maxim Integrated Products  
Printed USA  
is a registered trademark of Maxim Integrated Products.  
配单直通车
MAX4108ESA+产品参数
型号:MAX4108ESA+
是否Rohs认证: 符合
生命周期:Obsolete
IHS 制造商:MAXIM INTEGRATED PRODUCTS INC
零件包装代码:SOIC
包装说明:SOP,
针数:8
Reach Compliance Code:compliant
ECCN代码:EAR99
HTS代码:8542.33.00.01
Factory Lead Time:1 week
风险等级:5.61
放大器类型:OPERATIONAL AMPLIFIER
最大平均偏置电流 (IIB):34 µA
标称共模抑制比:100 dB
最大输入失调电压:8000 µV
JESD-30 代码:R-PDSO-G8
JESD-609代码:e3
长度:4.9 mm
湿度敏感等级:1
标称负供电电压 (Vsup):-5 V
功能数量:1
端子数量:8
最高工作温度:85 °C
最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY
封装代码:SOP
封装形状:RECTANGULAR
封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260
认证状态:Not Qualified
座面最大高度:1.75 mm
标称压摆率:1200 V/us
标称供电电压 (Vsup):5 V
表面贴装:YES
技术:CMOS
温度等级:INDUSTRIAL
端子面层:Tin (Sn)
端子形式:GULL WING
端子节距:1.27 mm
端子位置:DUAL
处于峰值回流温度下的最长时间:30
标称均一增益带宽:400000 kHz
宽度:3.9 mm
Base Number Matches:1
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