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OP1177 Datasheet(PDF) 1 Page - Analog Devices

Part No. OP1177
Description  Precision Low Noise, Low Input Bias Current Operational Amplifiers
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OP1177 Datasheet(HTML) 1 Page - Analog Devices

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REV. B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
a
OP1177/OP2177/OP4177
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2002
Precision Low Noise, Low Input
Bias Current Operational Amplifiers
FEATURES
Low Offset Voltage: 60
V Max
Very Low Offset Voltage Drift: 0.7
V/ C Max
Low Input Bias Current: 2 nA Max
Low Noise: 8 nV/
Hz
CMRR, PSRR, and AVO > 120 dB Min
Low Supply Current: 400
A/Amp
Dual Supply Operation:
2.5 V to
15 V
Unity Gain Stable
No Phase Reversal
Inputs Internally Protected Beyond Supply Voltage
APPLICATIONS
Wireless Base Station Control Circuits
Optical Network Control Circuits
Instrumentation
Sensors and Controls
Thermocouples
RTDs
Strain Bridges
Shunt Current Measurements
Precision Filters
GENERAL DESCRIPTION
The OPx177 family consists of very high-precision, single, dual,
and quad amplifiers featuring extremely low offset voltage and
drift, low input bias current, low noise, and low power con-
sumption. Outputs are stable with capacitive loads of over
1,000 pF with no external compensation. Supply current is less
than 500
µA per amplifier at 30 V. Internal 500 Ω series resis-
tors protect the inputs, allowing input signal levels several volts
beyond either supply without phase reversal.
Unlike previous high-voltage amplifiers with very low offset voltages, the
OP1177 and OP2177 are available in the tiny MSOP 8-lead sur-
face-mount package, while the OP4177 is available in TSSOP14.
Moreover, specified performance in the MSOP/TSSOP package is
identical to performance in the SOIC package.
OPx177 family offers the widest specified temperature range of
any high-precision amplifier in surface-mount packaging. All
versions are fully specified for operation from –40
°C to +125°C for
the most demanding operating environments.
Applications for these amplifiers include precision diode power
measurement, voltage and current level setting, and level detec-
tion in optical and wireless transmission systems. Additional
applications include line powered and portable instrumentation
FUNCTIONAL BLOCK DIAGRAM
8-Lead MSOP
(RM-Suffix)
IN
IN
V
V+
NC
NC
1
45
8
OP1177
NC
OUT
NC = NO CONNECT
8-Lead SOIC
(R-Suffix)
1
2
3
4
8
7
6
5
IN
V
+IN
V+
OUT
NC
NC
NC
NC = NO CONNECT
OP1177
8-Lead SOIC
(R-Suffix)
1
2
3
4
8
7
6
5
OP2177
IN A
V
+IN A
OUT B
IN B
V+
+IN B
OUT A
8-Lead MSOP
(RM-Suffix)
IN A
IN A
V
OUT B
–IN B
+IN B
V+
1
45
8
OP2177
OUT A
14-Lead TSSOP
(RU-Suffix)
OUT A
–IN A
+IN A
V+
+IN B
–IN B
OUT B
–IN D
+IN D
V–
OUT D
–IN C
OUT C
+IN C
14
8
1
7
OP4177
14-Lead SOIC
(R-Suffix)
OUT B
7
8
+IN B
5
10
IN B
6
9
V+
4
11
OP4177
IN A
2
13
+IN A
3
12
OUT A
1
14
OUT C
+IN C
IN C
V
IN D
+IN D
OUT D
OP4177
and controls—thermocouple, RTD, strain-bridge, and other
sensor signal conditioning—and precision filters.
The OP1177 (single) and the OP2177 (dual) amplifiers are
available in the 8-lead MSOP and 8-lead SOIC packages. The
OP4177 (quad) is available in 14-lead narrow SOIC and 14-lead
TSSOP packages. MSOP and TSSOP packages are available in
tape and reel only.


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