OPA187_17 Datasheet, PDF (1/35 Pages) Texas Instruments – Drift, Low Power, Rail-to-Rail Output 36-V Operational Amplifiers Zero-Drift Series

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OPA187, OPA2187, OPA4187
SBOS807 – DECEMBER 2016
OPAx187 0.005 µV/°C Drift, Low Power, Rail-to-Rail Output
36-V Operational Amplifiers
Zero-Drift Series
1 Features
•1 Low Offset Voltage: 10 µV (maximum)
• Zero Drift: 0.005 µV/°C
• Low Noise: 20 nV/√Hz
• 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
• Microsize Packages
2 Applications
• Bridge Amplifier
• Strain Gauge
• Test and Measurement Equipment
• Transducer Application
• Temperature Measurement
• Electronic Scales
• Medical Instrumentation
• RTD Amplifier
• Precision Active Filters
• Low-Side Current Monitoring
3 Description
The OPAx187 series operational amplifiers use auto-
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).
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 VSON, 8-pin VSSOP, and 8-pin SOIC
packages. The quad version is offered in 14-pin SO
and 14-pin TSSOP packages. All versions are
specified for operation from –40°C to +125°C.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
SOIC (8)
4.90 mm × 3.91 mm
OPA187
SOT-23 (5)
2.90 mm × 1.60 mm
VSSOP (8)
3.00 mm × 3.00 mm
SOIC (8)
4.90 mm × 3.91 mm
OPA2187
VSSOP (8)
3.00 mm × 3.00 mm
VSON (8)
3.00 mm × 3.00 mm
OPA4187
SOIC (14)
TSSOP (14)
8.70 mm × 3.90 mm
5.00 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
OPAx187 Offers Precision Low-Side Current
Measurement Capability
VSUPPLY ⁺
±
I
Load
100
RSHUNT
100
I
100 k _GND
VSUPPLY
+
OPA187
±
GND
GND
100 k
G = 1000 ‡ 5SHUNT ‡ ,
VOUT
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. PRODUCTION DATA.