OPA992, OPA2992, OPA4992
SBOSA10B – JUNE 2021 – REVISED DECEMBER 2021
OPAx992 40-V Rail-to-Rail Input/Output, Low Offset Voltage, Low Noise Op Amp
1 Features
3 Description
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•
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Low offset voltage: ±210 µV
The OPAx992 family (OPA992, OPA2992, and
OPA4992) is a family of high voltage (40 V) general
purpose operational amplifiers. These devices offer
excellent DC precision and AC performance, including
rail-to-rail input/output, low offset (±210 µV, typ), low
offset drift (±0.25 µV/°C, typ) and low noise (7 nV/√Hz
at 1 kHz, 4.4 nV/√Hz at 10 kHz).
Low offset voltage drift: ±0.25 µV/°C
Low noise: 7 nV/√Hz at 1 kHz, 4.4 nV/√Hz
broadband
High common-mode rejection: 115 dB
Low bias current: ±10 pA
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Rail-to-rail input and output
MUX-friendly/comparator inputs
– Amplifier operates with differential inputs up to
supply rail
– Amplifier can be used in open-loop or as
comparator
Wide bandwidth: 10.6-MHz GBW, unity-gain stable
High slew rate: 32 V/µs
Low quiescent current: 2.4 mA per amplifier
Wide supply: ±1.35 V to ±20 V, 2.7 V to 40 V
Robust EMIRR performance
Features such as differential and common-mode input
voltage ranges to the supply rails, high short-circuit
current (±65 mA), and high slew rate (32 V/µs) make
the OPAx992 a flexible, robust, and high-performance
op amp for high-voltage industrial applications.
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The OPAx992 family of op amps is available in micro-
size packages (such as WSON), as well as standard
packages (such as SOT-23, SOIC, and TSSOP), and
is specified from –40°C to 125°C.
Device Information
2 Applications
PART NUMBER(1)
PACKAGE
BODY SIZE (NOM)
2.90 mm × 1.60 mm
2.90 mm × 1.60 mm
2.00 mm × 1.25 mm
4.90 mm × 3.90 mm
2.90 mm × 1.60 mm
3.00 mm × 4.40 mm
3.00 mm × 3.00 mm
2.00 mm × 2.00 mm
8.65 mm × 3.90 mm
5.00 mm × 4.40 mm
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Multiplexed data-acquisition systems
Test and measurement equipment
Motor drive: power stage and control modules
Power delivery: UPS, server, and merchant
network power
ADC driver and reference buffer amplifier
Programmable logic controllers
Analog input and output modules
High-side and low-side current sensing
High precision comparator
SOT-23 (5)
OPA992
SOT-23 (6)
SC70 (5)
SOIC (8)
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SOT-23 (8)
TSSOP (8)
VSSOP (8)
WSON (8)
SOIC (14)
TSSOP (14)
OPA2992
OPA4992
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
OPAx992
+
+
Vshunt Rshunt
+
System
Load
-
MCU
Vo
-
-
Iload
GND
+
+
Vbus
Vbus
–
–
Iload
GND
+
System
Load
OPAx992
+
MCU
+
Vshunt
Rshunt
-
-
Vo
-
GND
GND
GND
GND
Low-Side Current Sense
High-Side Current Sense
OPAx992 in Current-Sensing Applications
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.
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