OPA4990SIRTER

The OPAx990 series is a family of high-voltage (40V) general-purpose operational amplifiers. These devices feature excellent DC accuracy and AC performance, including rail-to-rail input/output, low offset voltage (±300μV typ.) and low temperature drift (±0.6μV/°C typ.). The OPAx990 has unique features such as a differential and common-mode input voltage range up to the supply rails, high short-circuit current (±80mA), high slew rate (4.5V/μs), and shutdown. It is an extremely flexible, stable, and high-performance operational amplifier suitable for a variety of high-voltage industrial applications. The OPAx990 operational amplifier series is available in miniature packages (e.g., X2QFN, WSON, and SOT-553) as well as standard packages (e.g., SOT-23, SOIC, and TSSOP), with a specified operating temperature range from –40°C to 125°C.

Applications

• Multiplexed data acquisition systems
• Test and measurement equipment
• Motor drives: power stage and control modules
• Power delivery: UPS, server, and commercial network power supplies
• ADC drivers and reference buffer amplifiers
• Programmable logic controllers
• Analog input and output modules
• High-side and low-side current sensing
• High-precision comparators
• High-voltage multiplexed data acquisition systems

Key features

• Low offset voltage: ±300μV
• Low offset voltage drift: ±0.6μV/°C
• Low noise: 30nV/√Hz at 1 kHz
• High common-mode rejection: 115dB
• Low bias current: ±10pA
• Rail-to-rail input and output
• Multiplexer/comparator-compatible inputs
• Amplifier operates with differential inputs up to the supply rails
• Amplifier usable open-loop or as a comparator
• High bandwidth: 1.1MHz GBW
• High slew rate: 4.5V/µs
• Low quiescent current: 120μA per amplifier
• Wide supply voltage: ±1.35V to ±20V, 2.7V to 40V
• Robust EMIRR performance: 78dB at 1.8 GHz
• Differential and common-mode input voltage range up to the supply rails