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40-V, dual 4.5MHz, rail-to-rail input/output, low-offset-voltage, low-noise op amp

Availability: 985


Package | PIN: TSSOP (PW) | 8
Temp: Q (-40 to 125)
Package qty | Carrier: 2,000 | LARGE T&R
Qty Price
1-99 $1.28
100-249 $1.12
250-999 $0.76
1,000+ $0.57


  • Low offset voltage: ±125 µV
  • Low offset voltage drift: ±0.3 µV/°C
  • Low noise: 10.5 nV/√Hz at 1 kHz
  • High common-mode rejection: 130 dB
  • Low bias current: ±10 pA
  • Rail-to-rail input and output
  • Wide bandwidth: 4.5 MHz GBW
  • High slew rate: 21 V/µs
  • High capacitive load drive: 1 nF
  • MUX-friendly/comparator inputs
    • Amplifier operates with differential inputs up to supplyrail
    • Amplifier can be used in open-loop or ascomparator
  • Low quiescent current: 560 µA per amplifier
  • Wide supply: ±1.35 V to ±20 V, 2.7 V to 40 V
  • Robust EMIRR performance: EMI/RFI filters on input and supply pins
  • Differential and common-mode input voltage range to supply rail

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Texas Instruments  POPA2991IPWR

The OPAx991 family (OPA991, OPA2991, and OPA4991) is a family of high voltage (40-V)general purpose operational amplifiers. These devices offer exceptional DC precision and ACperformance, including rail-to-rail input/output, low offset (±125 µV, typ), low offset drift (±0.3µV/°C, typ), low noise (10.5 nV/√Hz and 1.8 µVPP) and4.5-MHz bandwidth.

Unique features such as differential and common-mode input-voltage range to the supplyrail, high output current (±75 mA), high slew rate (21 V/µs), high capacitive load drive (1 nF) andshutdown functionality make the OPAx991 a robust, high-performance operational amplifier forhigh-voltage industrial applications.

The OPAx991 family of op amps is available in micro-size packages (such as X2QFN, WSON, and SOT-553), as well asstandard packages (such as SOT-23, SOIC, and TSSOP), and is specified from –40°C to125°C.