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OP2177CRZ

更新时间： 2024-11-04 12:59:55
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Precision Low Noise, Low Input  
Bias Current Operational Amplifiers  
a
OP1177/OP2177/OP4177  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
Low Offset Voltage: 60 ␮V Max  
Very Low Offset Voltage Drift: 0.7 ␮V/؇C Max  
Low Input Bias Current: 2 nA Max  
8-Lead MSOP  
(RM-Suffix)  
8-Lead SOIC  
(R-Suffix)  
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  
1
8
NC  
؊IN  
؉IN  
V؊  
NC  
V+  
OUT  
NC  
NC  
؊IN  
+IN  
V؊  
NC  
V+  
1
2
3
4
8
7
6
5
OP1177  
4
5
OP1177  
OUT  
NC  
NC = NO CONNECT  
No Phase Reversal  
Inputs Internally Protected Beyond Supply Voltage  
NC = NO CONNECT  
APPLICATIONS  
Wireless Base Station Control Circuits  
Optical Network Control Circuits  
Instrumentation  
8-Lead SOIC  
(R-Suffix)  
8-Lead MSOP  
(RM-Suffix)  
Sensors and Controls  
Thermocouples  
RTDs  
Strain Bridges  
Shunt Current Measurements  
Precision Filters  
V+  
1
8
5
OUT A  
؊IN A  
؉IN A  
V؊  
OUT A  
؊IN A  
+IN A  
V؊  
V+  
1
2
3
4
8
7
6
5
OUT B  
–IN B  
+IN B  
OP2177  
OUT B  
OP2177  
4
؊IN B  
+IN B  
GENERAL DESCRIPTION  
14-Lead SOIC  
(R-Suffix)  
14-Lead TSSOP  
(RU-Suffix)  
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.  
OUT A  
OUT D  
–IN D  
+IN D  
V–  
+IN C  
–IN C  
OUT C  
1
14  
OUT A  
1
14 OUT D  
–IN A  
+IN A  
V+  
+IN B  
–IN B  
؊IN D  
2
3
4
13  
12  
؊IN A  
+IN A  
V+  
OP4177  
+IN D  
OP4177  
8
11 V؊  
7
OUT B  
+IN C  
+IN B  
؊IN B  
OUT B  
5
6
7
10  
9
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.  
؊IN C  
8
OUT C  
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.  
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.  
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  
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, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
may result from its use. No license is granted by implication or otherwise  
under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
www.analog.com  
© Analog Devices, Inc., 2002  
1234567...20

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