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OPA187, OPA2187, OPA4187
SBOS807D –DECEMBER 2016–REVISED DECEMBER 2018
OPAx187 0.001-µV/°C Drift, Low Power, Rail-to-Rail Output
36-V Operational Amplifiers Zero-Drift Series
1 Features
3 Description
The OPAx187 series operational amplifiers use auto-
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Low Offset Voltage: 10 µV (maximum)
Zero Drift: 0.001 µV/°C
Low Noise: 15 nV/√Hz
zeroing techniques to simultaneously provide low-
offset voltage (1 µV), and near zero drift over time
and temperature. These miniature, high-precision,
low-quiescent current amplifiers offer high-input
impedance and rail-to-rail output swing within 5 mV of
the rails into high-impedance loads. The input
common-mode range includes the negative rail.
Either single or dual supplies can be used in the
range of 4.5 V to 36 V (±2.25 V to ±18 V).
PSRR: 160 dB
CMRR: 140 dB
AOL: 160 dB
Quiescent Current: 100 µA
Wide Supply Voltage: ±2.25 V to ±18 V
Rail-to-Rail Output Operation
Input Includes Negative Rail
Low Bias Current: 100 pA (typical)
EMI Filtered Inputs
The single version of the OPAx187 device is
available in microsize 8-pin VSSOP, 5-pin SOT-23,
and 8-pin SOIC packages. The dual version is offered
in 8-pin VSSOP and 8-pin SOIC packages. The quad
version is offered in 14-pin SOIC, 14-pin TSSOP, and
16-pin WQFN packages. All versions are specified for
operation from –40°C to +125°C.
Microsize Packages
2 Applications
Device Information(1)
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Bridge Amplifier
PART NUMBER
PACKAGE
BODY SIZE (NOM)
4.90 mm × 3.91 mm
2.90 mm × 1.60 mm
3.00 mm × 3.00 mm
4.90 mm × 3.91 mm
3.00 mm × 3.00 mm
8.70 mm × 3.90 mm
5.00 mm × 4.40 mm
Strain Gauge
SOIC (8)
Test and Measurement Equipment
Transducer Application
Temperature Measurement
Electronic Scales
OPA187
SOT-23 (5)
VSSOP (8)
SOIC (8)
OPA2187
OPA4187
VSSOP (8)
SOIC (14)
TSSOP (14)
Medical Instrumentation
RTD Amplifier
WQFN (16)
(Preview)
Precision Active Filters
Low-Side Current Monitoring
4.00 mm × 4.00 mm
(1) For all available packages, see the package option addendum
at the end of the data sheet.
OPAx187 Offers Precision Low-Side Current Measurement Capability
+
Load
VSUPPLY
100 kꢀ
GND
œ
VSUPPLY
100 ꢀ
+
VOUT
OPA187
RSHUNT
100 ꢀ
œ
GND
I
I
100 kꢀ
GND
G = 1000 • RSHUNT • I
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.