OPA2387
SBOS984A – NOVEMBER 2020 – REVISED DECEOMBPEAR22308270
SBOS984A – NOVEMBER 2020 – REVISED DECEMBER 2020
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OPA2387 Ultra-High Precision, Zero-Drift, Low-Input-Bias-Current Op Amps
1 Features
3 Description
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Ultra-low offset voltage: ±2 µV (maximum, tested)
Zero drift: ±0.003 µV/°C
The OPA387, OPA2387, and OPA4387 (OPAx387)
family of precision amplifiers offers state-of-the-art
performance. With zero-drift technology, the OPAx387
offset voltage and offset drift provide unparalleled
long-term stability. With a mere 570 µA of quiescent
current, the OPAx387 are able to achieve 5.7 MHz of
bandwidth, a broadband noise of 8.5 nV/√Hz, and a
1/f noise at 177 nVPP. These specifications are crucial
to achieve extremely-high precision and no
degradation of linearity in 16-bit to 24-bit analog to
digital converters (ADCs). The OPAx387 feature flat
bias current over temperature; therefore, little to no
calibration is needed in high input impedance
applications over temperature.
Low-input bias current: 135 pA (maximum, tested)
Low noise: 8.5 nV√Hz at 1 kHz
No 1/f noise: 177 nVPP (0.1 Hz to 10 Hz)
Common-mode input range ±100 mV beyond
supply rails
Gain bandwidth: 5.7 MHz
Quiescent current: 570 μA per amplifier
Single supply: 1.7 V to 5.5 V
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Dual supply: ±0.85 V to ±2.75 V
EMI/RFI filtered inputs
2 Applications
All versions are specified over the industrial
temperature range of –40°C to +125°C.
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Electronic thermometer
Weigh scale
Temperature transmitter
Ventilators
Data acquisition (DAQ)
Semiconductor test
Lab and field instrumentation
Merchant network and server PSU
Analog input module
Pressure transmitter
Device Information
PART NUMBER
PACKAGE(1)
BODY SIZE (NOM)
2.90 mm × 1.60 mm
1.50 mm × 1.50 mm
4.90 mm × 3.90 mm
3.00 mm × 3.00 mm
2.00 mm × 2.00 mm
5.00 mm × 4.40 mm
SOT-23 (5)(3)
OPA387(2)
DFN (6)(3)
SOIC (8)(3)
VSSOP (8)
DFN (8)(3)
OPA2387
OPA4387(2)
TSSOP (14)(3)
(1) For all available packages, see the package option
addendum at the end of the data sheet.
(2) Device is preview.
(3) Package is preview.
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45
40
35
30
25
20
15
10
5
ADC
OPA387
Radiation
Detector
OPA387 as an Ultra-Low Offset, Low-Noise ADC
Driver
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-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
Input Offset Voltage (mV)
c110
Ultra-Low Input Offset Voltage
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.
Product Folder Links: OPA2387
Copyright © 2020 Texas Instruments Incorporated
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