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OPA2277UA 参数 Datasheet PDF下载

OPA2277UA图片预览
型号: OPA2277UA
PDF下载: 下载PDF文件 查看货源
内容描述: 高精密运算放大器 [High Precision OPERATIONAL AMPLIFIERS]
分类和应用: 运算放大器
文件页数/大小: 25 页 / 922 K
品牌: BURR-BROWN [ BURR-BROWN CORPORATION ]
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OPA
277
OPA
227
7
OPA
4277
OPA
277
OPA
2277
OPA
4277
OPA
277
O PA
2277
OPA277
OPA2277
OPA4277
SBOS079A – MARCH 1999 – REVISED APRIL 2005
High Precision
OPERATIONAL AMPLIFIERS
FEATURES
q
ULTRA LOW OFFSET VOLTAGE: 10
µ
V
q
ULTRA LOW DRIFT:
±
0.1
µ
V/
°
C
q
HIGH OPEN-LOOP GAIN: 134dB
q
HIGH COMMON-MODE REJECTION: 140dB
q
HIGH POWER SUPPLY REJECTION: 130dB
q
LOW BIAS CURRENT: 1nA max
q
WIDE SUPPLY RANGE:
±
2V to
±
18V
q
LOW QUIESCENT CURRENT: 800
µ
A/amplifier
q
SINGLE, DUAL, AND QUAD VERSIONS
q
REPLACES OP-07, OP-77, OP-177
DESCRIPTION
The OPA277 series precision op amps replace the industry
standard OP-177. They offer improved noise, wider output
voltage swing, and are twice as fast with half the quiescent
current. Features include ultra low offset voltage and drift, low
bias current, high common-mode rejection, and high power
supply rejection. Single, dual, and quad versions have identical
specifications for maximum design flexibility.
OPA277 series op amps operate from
±2V
to
±18V
supplies with
excellent performance. Unlike most op amps which are specified
at only one supply voltage, the OPA277 series is specified for
real-world applications; a single limit applies over the
±5V
to
±15V
supply range. High performance is maintained as the
amplifiers swing to their specified limits. Because the initial offset
voltage (±20µV max) is so low, user adjustment is usually not
required. However, the single version (OPA277) provides exter-
nal trim pins for special applications.
OPA277 op amps are easy to use and free from phase inversion
and overload problems found in some other op amps. They are
stable in unity gain and provide excellent dynamic behavior over
a wide range of load conditions. Dual and quad versions feature
completely independent circuitry for lowest crosstalk and free-
dom from interaction, even when overdriven or overloaded.
Single (OPA277) and dual (OPA2277) versions are available
in DIP-8, SO-8, and DFN-8 (4mm x 4mm) packages. The quad
(OPA4277) comes in DIP-14 and SO-14 surface-mount pack-
ages. All are fully specified from –40°C to +85°C and operate
from –55°C to +125°C.
OPA277AIDRM
APPLICATIONS
q
q
q
q
q
q
q
TRANSDUCER AMPLIFIER
BRIDGE AMPLIFIER
TEMPERATURE MEASUREMENTS
STRAIN GAGE AMPLIFIER
PRECISION INTEGRATOR
BATTERY POWERED INSTRUMENTS
TEST EQUIPMENT
OPA277
Offset Trim
–In
+In
V–
1
2
3
4
8-Pin DIP, SO-8
8
7
6
5
Offset Trim
V+
Output
NC
OPA4277
1
2
A
D
12
11
10
B
C
9
8
14-Pin DIP, SO-14
V−
4
5
Offset Trim
−In
1
Pin 1
Indicator
8
Offset Trim
Out A
–In A
+In A
V+
+In B
14
13
Out D
–In D
2
7
V+
+In
3
6
Output
3
4
5
6
7
+In D
V–
+In C
–In C
Out C
+In A
3
Out A
−In
A
1
OPA2277AIDRM
V−
4
5
NC
8
Pin 1
Indicator
Out B
DFN-8 4mm x 4mm
(top view)
Thermal Pad
on Bottom
(Connect to V−)
OPA2277
Out A
–In A
+In A
V–
1
2
3
4
8-Pin DIP, SO-8
A
B
8
7
6
5
V+
Out B
–In B
+In B
–In B
Out B
2
7
V+
−In
B
6
+In B
NC = No connection.
DFN-8 4mm x 4mm
(top view)
Thermal Pad
on Bottom
(Connect to V−)
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 1999-2005, Texas Instruments Incorporated
www.ti.com