Texas Instruments OPAx992/OPAx92-Q1 Low Noise Op Amp

Texas Instruments OPAx992/OPAx992-Q1 Low-Offset-Voltage Low Noise Operational Amplifier (Op Amp) is a family of high voltage (40V) general-purpose operational amplifiers. These devices offer excellent DC precision and AC performance, including rail-to-rail input/output, low offset (±210µV, typ.), low offset drift (±0.25µV/°C, typ.) and low noise (7nV/√Hz at 1kHz, 4.4nV/√Hz at 10kHz).

Features such as differential and common-mode input voltage ranges to the supply rails, high short-circuit current (±65mA), and high slew rate (32V/µs) make the OPAx992/OPAx92-Q1 a flexible, robust, and high-performance op amp for high-voltage industrial applications. The Texas Instruments OPAx992 family of op amps is available in micro-size packages (WSON) and standard packages (SOT-23, SOIC, and TSSOP) and is specified from –40°C to 125°C. The OPAx92-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

±210µV low offset voltage
±0.25µV/°C low offset voltage drift
7nV/√Hz at 1kHz, 4.4nV/√Hz broadband low noise
115dB high common-mode rejection
±10pA low bias current
Rail-to-rail input and output
10.6MHz GBW, unity-gain stable wide bandwidth
32V/µs high slew rate

MUX-friendly/comparator inputs
- Amplifier operates with differential inputs up to supply rail
- The amplifier can be used in open-loop or as a comparator
2.4mA per amplifier low quiescent current
±1.35V to ±20V, 2.7V to 40V wide supply
Robust EMIRR performance

Applications

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

Texas Instruments OPAx992/OPAx92-Q1 Low Noise Op Amp

Features

Applications

Functional Block Diagram

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