OPA2991QDGKRQ1

The OPAx991-Q1 family (OPA991-Q1, OPA2991-Q1, and OPA4991-Q1) is a family of high voltage (40 V) general purpose operational amplifiers for automotive application. These devices offer exceptional DC precision and AC performance, including rail-to-rail input or output, low offset (±125 µV, typical), low offset drift (±0.3 µV/°C, typical), low noise (10.8 nV/√ Hz and 1.8 µV PP), and 4.5-MHz bandwidth.

Unique features such as differential and common-mode input-voltage range to the supply rail, high output current (±75 mA), high slew rate (21 V/µs), and high capacitive load drive (1 nF) make the OPAx991-Q1 a robust, high-performance operational amplifier for high-voltage automotive applications.

The OPAx991-Q1 family of op amps is available in standard packages (such as SOT-23, SOIC, VSSOP, and TSSOP) and is specified from –40°C to 125°C.

Key Features

• AEC-Q100 qualified for automotive applications
  • Temperature grade 1: –40°C to +125°C, T A
  • Device HBM ESD classification level 2A
  • Device CDM ESD classification level C6
• Low offset voltage: ±125 µV
• Low offset voltage drift: ±0.3 µV/°C
• Low noise: 10.8 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 supply rail
  • Amplifier can be used in open-loop or as comparator
• 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