OPAx991/OPAx991-Q1 Operational Amplifiers

Texas Instruments OPAx991/OPAx991-Q1 Low-Noise Operational Amplifiers (Op Amps) are high voltage (40V) general-purpose op amps. These are available in single (OPA991/OPA991-Q1), dual (OPA2991/OPA2991-Q1), and quad (OPA4991/OPA4991-Q1) versions. These devices offer exceptional DC precision and AC performance, including rail-to-rail input/output, low offset (±125µV, typ), low offset drift (±0.3µV/°C, typ), low noise (10.5nV/√Hz and 1.8µVPP), and 4.5MHz bandwidth. These devices have unique features such as differential and common-mode input-voltage range to the supply rail, high output current (±75mA), high slew rate (21V/µs), high capacitive load drive (1nF), and shutdown functionality. These features make the OPAx991 a robust, high-performance operational amplifier for high-voltage industrial applications. 

Results: 26
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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Number of Channels
GBP - Gain Bandwidth Product
SR - Slew Rate
Vos - Input Offset Voltage
Ib - Input Bias Current
Supply Voltage - Max
Supply Voltage - Min
Operating Supply Current
Output Current per Channel
CMRR - Common Mode Rejection Ratio
en - Input Voltage Noise Density
Package/Case
Mounting Style
Shutdown
Minimum Operating Temperature
Maximum Operating Temperature
In - Input Noise Current Density
Series
Packaging
Texas Instruments Operational Amplifiers - Op Amps Automotive quad 40 - V 4.5-MHz low-pow
Datasheet
7 149In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

4 Channel 4.5 MHz 21 V/us 125 uV 10 pA 40 V 2.7 V 75 mA 75 dB 10.8 nV/sqrt Hz SOIC-14 SMD/SMT Shutdown - 40 C + 125 C 82 fA OPA4991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Automotive dual 40 - V 4.5-MHz low-power
Datasheet
2 627In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

21 V/us TSSOP-8 SMD/SMT OPA2991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Dual 40-V 4.5-MHz lo w-power operation A A 595-OPA2991IDR
Datasheet
9 638In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

2 Channel 4.5 MHz 21 V/us 10 pA 40 V 2.7 V 560 uA 75 mA 130 dB 10.8 nV/sqrt Hz SMD/SMT Shutdown - 40 C + 125 C OPA2991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Single 40-V 4.5-MHz low-power operation
Datasheet
7 802In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

1 Channel 4.5 MHz 21 V/us 125 uV 10 pA 40 V 2.7 V 560 uA 75 mA 109 dB 9.4 nV/sqrt Hz SC-70-5 SMD/SMT No Shutdown - 40 C + 125 C 2 fA OPA991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Enhanced-product qu ad 40-V 4.5-MHz rai
Datasheet
2 980In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

4 Channel 4.5 MHz 21 V/us 830 uV 10 pA 40 V 2.7 V 75 mA 130 dB 10.8 nV/sqrt Hz SOT-23-14 SMD/SMT Shutdown - 40 C + 125 C 82 fA OPA4991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Automotive dual 40 - V 4.5-MHz low-power
Datasheet
16 485In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

2 Channel 4.5 MHz 21 V/us 125 uV 10 pA 40 V 2.7 V 560 uA 75 mA 130 dB 10.8 nV/sqrt Hz VSSOP-8 SMD/SMT Shutdown - 40 C + 125 C 82 fA OPA2991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Automotive quad 40 - V 4.5-MHz low-pow
Datasheet
11 734In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

4 Channel 4.5 MHz 21 V/us 125 uV 10 pA 40 V 2.7 V 75 dB 10.8 nV/sqrt Hz SOT-23-14 SMD/SMT Shutdown - 40 C + 125 C 82 fA OPA4991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Single 40-V 4.5-MHz low-power operation
Datasheet
35 897In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

1 Channel 4.5 MHz 21 V/us 750 uV 10 pA 40 V 2.7 V 560 uA 75 mA 130 dB 10.8 nV/sqrt Hz SOT-23-5 SMD/SMT No Shutdown - 40 C + 125 C OPA991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Automotive single 40 -V 4.5-MHz low-pow
Datasheet
2 486In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

1 Channel 4.5 MHz 21 V/us 125 uV 10 pA 40 V 2.7 V 560 uA 75 mA 75 dB 10.8 nV/sqrt Hz SOT-23-6 SMD/SMT Shutdown - 40 C + 125 C 82 fA OPA991 Reel, Cut Tape, MouseReel

Texas Instruments Operational Amplifiers - Op Amps Dual 40-V 4.5-MHz lo w-power operation
Datasheet
23 908In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

2 Channel 4.5 MHz 21 V/us 125 uV 10 pA 40 V 2.7 V 560 uA 75 mA 130 dB 10.8 nV/sqrt Hz VSSOP-8 SMD/SMT Shutdown - 40 C + 125 C 2 fA OPA2991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Automotive quad 40 - V 4.5-MHz low-pow
Datasheet
7 216In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

4 Channel 4.5 MHz 21 V/us 125 uV 10 pA 40 V 2.7 V 560 uA 75 mA 130 dB 10.8 nV/sqrt Hz TSSOP-14 SMD/SMT Shutdown - 40 C + 125 C 82 fA OPA4991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Dual 40-V 4.5-MHz lo w-power operation
Datasheet
3 649In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

2 Channel 4.5 MHz 21 V/us 750 uV 10 pA 40 V 2.7 V 560 uA 75 mA 130 dB 10.8 nV/sqrt Hz SOT-23-THIN-8 SMD/SMT Shutdown - 40 C + 125 C OPA2991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps 16
Datasheet
1 143In Stock
4 950Expected 05/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

2 Channel 4.5 MHz 21 V/us 10 pA 40 V 2.7 V 560 uA 75 mA 130 dB 10.8 nV/sqrt Hz WSON-8 SMD/SMT Shutdown - 40 C + 125 C OPA2991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Automotive dual 40 - V 4.5-MHz low-power
Datasheet
3 751In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

2 Channel 4.5 MHz 21 V/us 125 uV 10 pA 40 V 2.7 V 560 uA 75 mA 107 dB 10.8 nV/sqrt Hz SOIC-8 SMD/SMT Shutdown - 40 C + 125 C 82 fA OPA2991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Quad 40-V 4.5-MHz lo w-power operation
Datasheet
6 853In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

4 Channel 4.5 MHz 21 V/us 125 uV 10 pA 40 V 2.7 V 560 uA 75 mA 130 dB 10.8 nV/sqrt Hz TSSOP-14 SMD/SMT Shutdown - 40 C + 125 C 2 fA OPA4991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Single 40-V 4.5-MHz low-power operation
Datasheet
7 159In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

1 Channel 4.5 MHz 21 V/us 750 uV 10 pA 40 V 2.7 V 560 uA 75 mA 130 dB 10.8 nV/sqrt Hz SOT-23-6 SMD/SMT Shutdown - 40 C + 125 C OPA991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Dual 40-V 4.5-MHz lo w-power operation
Datasheet
6 680In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

2 Channel 4.5 MHz 21 V/us 750 uV 10 pA 40 V 2.7 V 560 uA 75 mA 130 dB 10.8 nV/sqrt Hz X2QFN-10 SMD/SMT Shutdown - 40 C + 125 C OPA2991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Quad 40-V 4.5-MHz lo w-power operation
Datasheet
2 458In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

4 Channel 4.5 MHz 21 V/us 125 uV 10 pA 40 V 2.7 V 75 mA 75 dB 10.8 nV/sqrt Hz SOT-23-THIN-14 SMD/SMT Shutdown - 40 C + 125 C 2 fA OPA4991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Automotive quad 40 - V 4.5-MHz low-pow
Datasheet
1 904In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

4 Channel 4.5 MHz 21 V/us 125 uV 10 pA 40 V 2.7 V 560 uA 75 dB 10.8 nV/sqrt Hz TSSOP-14 SMD/SMT Shutdown - 40 C + 125 C 82 fA OPA4991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Quad 40-V 4.5-MHz lo w-power operation
Datasheet
95In Stock
5 000Expected 14/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

4 Channel 4.5 MHz 21 V/us 125 uV 10 pA 40 V 2.7 V 560 uA 75 mA 130 dB 10.8 nV/sqrt Hz SOIC-14 SMD/SMT Shutdown - 40 C + 125 C OPA4991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Single 40-V 4.5-MHz low-power operation
Datasheet
540In Stock
9 000Expected 21/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

1 Channel 4.5 MHz 21 V/us 750 uV 10 pA 40 V 2.7 V 560 uA 75 mA 130 dB 10.8 nV/sqrt Hz SC-70-5 SMD/SMT Shutdown - 40 C + 125 C 2 fA OPA991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Automotive single 40 -V 4.5-MHz low-pow
Datasheet
157In Stock
18 000Expected 05/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

1 Channel 4.5 MHz 21 V/us 895 uV 10 pA 40 V 2.7 V 75 mA 130 dB 10.8 nV/sqrt Hz SOT-23-5 SMD/SMT No Shutdown - 40 C + 125 C 82 fA OPA991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Quad 40-V 4.5-MHz lo w-power operation
Datasheet
69In Stock
24 000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

4 Channel 4.5 MHz 21 V/us 750 uV 10 pA 40 V 2.7 V 560 uA 75 mA 130 dB 10.8 nV/sqrt Hz QFN-14 SMD/SMT Shutdown - 40 C + 125 C OPA4991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Automotive single 40 -V 4.5-MHz low-pow
Datasheet
23In Stock
3 000Expected 19/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

1 Channel 4.5 MHz 21 V/us 125 uV 10 pA 40 V 2.7 V 560 uA 75 mA 75 dB 10.8 nV/sqrt Hz SC-70-5 SMD/SMT Shutdown - 40 C + 125 C 82 fA OPA991 Reel, Cut Tape, MouseReel
Texas Instruments Operational Amplifiers - Op Amps Dual 40-V 4.5-MHz lo w-power operation A A 595-OPA2991IPWR
Datasheet
27 183On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

2 Channel 4.5 MHz 21 V/us 125 uV 10 pA 40 V 2.7 V 560 uA 75 mA 130 dB 10.8 nV/sqrt Hz SOIC-8 SMD/SMT Shutdown - 40 C + 125 C 2 fA OPA2991 Reel, Cut Tape, MouseReel