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OPA2991QDGKRQ1

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

Manufacturer:

TI
Mfr.Part #:

OPA2991QDGKRQ1
Datasheet:

OPA2991QDGKRQ1 Datasheet (PDF)
Number of channels:

2
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
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OPA2991QDGKRQ1 General Description

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

Specifications

Number of channels	2	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) (µV/°C)	0.3
Features	EMI Hardened, High Cload Drive, MUX Friendly	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