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OPA4991-Q1

ACTIVE

Automotive, quad, 40-V, 4.5-MHz, low-power operational amplifier

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Data sheet

OPA4991-Q1

ACTIVE
Data sheet Order now

Product details

Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 40 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Rail-to-rail In, Out GBW (typ) (MHz) 4.5 Slew rate (typ) (V/µs) 21 Vos (offset voltage at 25°C) (max) (mV) 0.895 Iq per channel (typ) (mA) 0.56 Vn at 1 kHz (typ) (nV√Hz) 10.8 Rating Automotive Operating temperature range (°C) -40 to 125 Offset drift (typ) (V/°C) 0.0000003 Features EMI Hardened, High Cload Drive, MUX Friendly, Small Size CMRR (typ) (dB) 130 Iout (typ) (A) 0.075 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.025 Output swing headroom (to positive supply) (typ) (V) -0.025
Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 40 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Rail-to-rail In, Out GBW (typ) (MHz) 4.5 Slew rate (typ) (V/µs) 21 Vos (offset voltage at 25°C) (max) (mV) 0.895 Iq per channel (typ) (mA) 0.56 Vn at 1 kHz (typ) (nV√Hz) 10.8 Rating Automotive Operating temperature range (°C) -40 to 125 Offset drift (typ) (V/°C) 0.0000003 Features EMI Hardened, High Cload Drive, MUX Friendly, Small Size CMRR (typ) (dB) 130 Iout (typ) (A) 0.075 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.025 Output swing headroom (to positive supply) (typ) (V) -0.025
SOIC (D) 14 51.9 mm² 8.65 x 6 SOT-23-THN (DYY) 14 8.4 mm² 4.2 x 2 TSSOP (PW) 14 32 mm² 5 x 6.4
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C, TA
    • 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
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C to +125°C, TA
    • 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

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/output, low offset (±125 µV, typ), low offset drift (±0.3 µV/°C, typ), low noise (10.8 nV/√Hz and 1.8 µVPP), 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.

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/output, low offset (±125 µV, typ), low offset drift (±0.3 µV/°C, typ), low noise (10.8 nV/√Hz and 1.8 µVPP), 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.
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* Data sheet OPAx991-Q1 Automotive, 40-V Rail-to-Rail Input/Output, Low Offset Voltage, Low Noise Op Amp datasheet (Rev. D) PDF | HTML 14 Sep 2021
More literature Using An Op Amp for High-Side Current Sensing (Rev. A) PDF | HTML 07 Dec 2021
User guide DYY-AMP Evaluation Module (EVM) PDF | HTML 25 Aug 2021
Technical article What is an op amp? 21 Jan 2020
Technical article How to lay out a PCB for high-performance, low-side current-sensing designs 06 Feb 2018
Technical article Low-side current sensing for high-performance cost-sensitive applications 22 Jan 2018
Technical article Voltage and current sensing in HEV/EV applications 22 Nov 2017

Design & development

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Package Pins Download
SOIC (D) 14 View options
SOT-23-THN (DYY) 14 View options
TSSOP (PW) 14 View options

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