Operational Amplifiers - Op Amps

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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.

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Part #

Operational Amplifiers - Op Amps Automotive dual 40 - V 4.5-MHz low-power

OPA2991QDGKRQ1
Texas Instruments
1: $2.62
19,653In Stock

Mfr. Part No.
OPA2991QDGKRQ1

Mouser Part No
595-OPA2991QDGKRQ1

Texas Instruments

Operational Amplifiers - Op Amps Automotive dual 40 - V 4.5-MHz low-power

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Datasheet

19,653In Stock

Cut Tape

$2.62

$1.96

$1.79

$1.61

Reel

$1.32

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

OPA2991

Reel, Cut Tape, MouseReel

Operational Amplifiers - Op Amps Quad 40-V 4.5-MHz lo w-power operation

OPA4991IPWR
Texas Instruments
1: $3.48
10,869In Stock

Mfr. Part No.
OPA4991IPWR

Mouser Part No
595-OPA4991IPWR

Texas Instruments

Operational Amplifiers - Op Amps Quad 40-V 4.5-MHz lo w-power operation

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Datasheet

10,869In Stock

Cut Tape

$3.48

$2.62

$2.41

$2.17

Reel

$1.88

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

OPA4991

Reel, Cut Tape, MouseReel

Operational Amplifiers - Op Amps Automotive quad 40 - V 4.5-MHz low-pow

OPA4991QDRQ1
Texas Instruments
1: $4.03
8,225In Stock

Mfr. Part No.
OPA4991QDRQ1

Mouser Part No
595-OPA4991QDRQ1

Texas Instruments

Operational Amplifiers - Op Amps Automotive quad 40 - V 4.5-MHz low-pow

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Datasheet

8,225In Stock

Cut Tape

$4.03

$3.06

$2.81

$2.54

View

Reel

$2.18

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

OPA4991

Reel, Cut Tape, MouseReel

Operational Amplifiers - Op Amps Automotive quad 40 - V 4.5-MHz low-pow

OPA4991TQPWRQ1
Texas Instruments
1: $4.03
2,266In Stock

Mfr. Part No.
OPA4991TQPWRQ1

Mouser Part No
595-OPA4991TQPWRQ1

Texas Instruments

Operational Amplifiers - Op Amps Automotive quad 40 - V 4.5-MHz low-pow

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Datasheet

2,266In Stock

Cut Tape

$4.03

$3.06

$2.81

$2.54

View

Reel

$2.18

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

OPA4991

Reel, Cut Tape, MouseReel

Operational Amplifiers - Op Amps Dual 40-V 4.5-MHz lo w-power operation A A 595-OPA2991IDR

OPA2991IPWR
Texas Instruments
1: $2.17
11,149In Stock

Mfr. Part No.
OPA2991IPWR

Mouser Part No
595-OPA2991IPWR

Texas Instruments

Operational Amplifiers - Op Amps Dual 40-V 4.5-MHz lo w-power operation A A 595-OPA2991IDR

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Datasheet

11,149In Stock

Cut Tape

$2.17

$1.61

$1.47

$1.31

View

Reel

$1.07

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Operational Amplifiers - Op Amps Single 40-V 4.5-MHz low-power operation

OPA991TIDCKR
Texas Instruments
1: $1.80
8,439In Stock

Mfr. Part No.
OPA991TIDCKR

Mouser Part No
595-OPA991TIDCKR

Texas Instruments

Operational Amplifiers - Op Amps Single 40-V 4.5-MHz low-power operation

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Datasheet

8,439In Stock

Cut Tape

$1.80

$1.33

$1.21

$1.08

Reel

$0.902

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

OPA991

Reel, Cut Tape, MouseReel

Operational Amplifiers - Op Amps Single 40-V 4.5-MHz low-power operation

OPA991SIDBVR
Texas Instruments
1: $1.53
12,367In Stock

Mfr. Part No.
OPA991SIDBVR

Mouser Part No
595-OPA991SIDBVR

Texas Instruments

Operational Amplifiers - Op Amps Single 40-V 4.5-MHz low-power operation

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Datasheet

12,367In Stock

Cut Tape

$1.53

$1.12

$1.02

$0.90

Reel

$0.727

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Operational Amplifiers - Op Amps Automotive single 40 -V 4.5-MHz low-pow

OPA991QDCKRQ1
Texas Instruments
1: $1.63
2,964In Stock
New Product

Mfr. Part No.
OPA991QDCKRQ1

Mouser Part No
595-OPA991QDCKRQ1

New Product

Texas Instruments

Operational Amplifiers - Op Amps Automotive single 40 -V 4.5-MHz low-pow

Learn More

Datasheet

2,964In Stock

Cut Tape

$1.63

$1.20

$1.09

$0.962

Reel

$0.806

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

OPA991

Reel, Cut Tape, MouseReel

Operational Amplifiers - Op Amps Automotive single 40 -V 4.5-MHz low-pow

OPA991SQDBVRQ1
Texas Instruments
1: $1.87
2,831In Stock
New Product

Mfr. Part No.
OPA991SQDBVRQ1

Mouser Part No
595-OPA991SQDBVRQ1

New Product

Texas Instruments

Operational Amplifiers - Op Amps Automotive single 40 -V 4.5-MHz low-pow

Learn More

Datasheet

2,831In Stock

Cut Tape

$1.87

$1.38

$1.26

$1.12

Reel

$0.939

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

OPA991

Reel, Cut Tape, MouseReel

Operational Amplifiers - Op Amps Automotive dual 40 - V 4.5-MHz low-power

OPA2991QPWRQ1
Texas Instruments
1: $2.37
2,646In Stock

Mfr. Part No.
OPA2991QPWRQ1

Mouser Part No
595-OPA2991QPWRQ1

Texas Instruments

Operational Amplifiers - Op Amps Automotive dual 40 - V 4.5-MHz low-power

Learn More

Datasheet

2,646In Stock

Cut Tape

$2.37

$2.15

$2.02

$2.01

Reel

$1.36

$1.33

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

21 V/us

TSSOP-8

SMD/SMT

OPA2991

Reel, Cut Tape, MouseReel

Operational Amplifiers - Op Amps Enhanced-product qu ad 40-V 4.5-MHz rai

OPA4991MDYYREP
Texas Instruments
1: $9.92
704In Stock
3,000Expected 06/08/2026

Mfr. Part No.
OPA4991MDYYREP

Mouser Part No
595-OPA4991MDYYREP

Texas Instruments

Operational Amplifiers - Op Amps Enhanced-product qu ad 40-V 4.5-MHz rai

Learn More

Datasheet

704In Stock

3,000Expected 06/08/2026

Cut Tape

$9.92

$7.74

$7.19

$6.59

View

Reel

$5.81

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

OPA4991

Reel, Cut Tape, MouseReel

Operational Amplifiers - Op Amps Dual 40-V 4.5-MHz lo w-power operation

OPA2991IDDFR
Texas Instruments
1: $2.10
8,146In Stock

Mfr. Part No.
OPA2991IDDFR

Mouser Part No
595-OPA2991IDDFR

Texas Instruments

Operational Amplifiers - Op Amps Dual 40-V 4.5-MHz lo w-power operation

Learn More

Datasheet

8,146In Stock

Cut Tape

$2.10

$1.56

$1.42

$1.27

Reel

$1.06

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Operational Amplifiers - Op Amps Dual 40-V 4.5-MHz lo w-power operation

OPA2991IDGKR
Texas Instruments
1: $2.17
5,659In Stock

Mfr. Part No.
OPA2991IDGKR

Mouser Part No
595-OPA2991IDGKR

Texas Instruments

Operational Amplifiers - Op Amps Dual 40-V 4.5-MHz lo w-power operation

Learn More

Datasheet

5,659In Stock

Cut Tape

$2.17

$1.61

$1.47

$1.31

Reel

$1.14

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

OPA2991

Reel, Cut Tape, MouseReel

Operational Amplifiers - Op Amps Dual 40-V 4.5-MHz lo w-power operation A A 595-OPA2991IPWR

OPA2991IDR
Texas Instruments
1: $2.17
4,320In Stock

Mfr. Part No.
OPA2991IDR

Mouser Part No
595-OPA2991IDR

Texas Instruments

Operational Amplifiers - Op Amps Dual 40-V 4.5-MHz lo w-power operation A A 595-OPA2991IPWR

Learn More

Datasheet

4,320In Stock

Cut Tape

$2.17

$1.61

$1.47

$1.31

Reel

$1.11

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

OPA2991

Reel, Cut Tape, MouseReel

Operational Amplifiers - Op Amps 16

OPA2991IDSGR
Texas Instruments
1: $2.38
2,504In Stock

Mfr. Part No.
OPA2991IDSGR

Mouser Part No
595-OPA2991IDSGR

Texas Instruments

Operational Amplifiers - Op Amps 16

Learn More

Datasheet

2,504In Stock

Cut Tape

$2.38

$1.77

$1.62

$1.45

Reel

$1.22

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Operational Amplifiers - Op Amps Automotive dual 40 - V 4.5-MHz low-power

OPA2991QDRQ1
Texas Instruments
1: $2.62
3,169In Stock

Mfr. Part No.
OPA2991QDRQ1

Mouser Part No
595-OPA2991QDRQ1

Texas Instruments

Operational Amplifiers - Op Amps Automotive dual 40 - V 4.5-MHz low-power

Learn More

Datasheet

3,169In Stock

Cut Tape

$2.62

$1.96

$1.79

$1.61

Reel

$1.35

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

OPA2991

Reel, Cut Tape, MouseReel

Operational Amplifiers - Op Amps Quad 40-V 4.5-MHz lo w-power operation

OPA4991IDR
Texas Instruments
1: $3.48
4,542In Stock

Mfr. Part No.
OPA4991IDR

Mouser Part No
595-OPA4991IDR

Texas Instruments

Operational Amplifiers - Op Amps Quad 40-V 4.5-MHz lo w-power operation

Learn More

Datasheet

4,542In Stock

Cut Tape

$3.48

$2.62

$2.41

$2.17

Reel

$1.82

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Operational Amplifiers - Op Amps Automotive quad 40 - V 4.5-MHz low-pow

OPA4991QDYYRQ1
Texas Instruments
1: $3.97
1,832In Stock

Mfr. Part No.
OPA4991QDYYRQ1

Mouser Part No
595-OPA4991QDYYRQ1

Texas Instruments

Operational Amplifiers - Op Amps Automotive quad 40 - V 4.5-MHz low-pow

Learn More

Datasheet

1,832In Stock

Cut Tape

$3.97

$3.00

$2.76

$2.49

View

Reel

$2.05

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

OPA4991

Reel, Cut Tape, MouseReel

Operational Amplifiers - Op Amps Automotive quad 40 - V 4.5-MHz low-pow

OPA4991QPWRQ1
Texas Instruments
1: $4.03
4,229In Stock

Mfr. Part No.
OPA4991QPWRQ1

Mouser Part No
595-OPA4991QPWRQ1

Texas Instruments

Operational Amplifiers - Op Amps Automotive quad 40 - V 4.5-MHz low-pow

Learn More

Datasheet

4,229In Stock

Cut Tape

$4.03

$3.06

$2.81

$2.54

View

Reel

$2.23

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

OPA4991

Reel, Cut Tape, MouseReel

Operational Amplifiers - Op Amps Single 40-V 4.5-MHz low-power operation

OPA991IDBVR
Texas Instruments
1: $1.40
9,888In Stock

Mfr. Part No.
OPA991IDBVR

Mouser Part No
595-OPA991IDBVR

Texas Instruments

Operational Amplifiers - Op Amps Single 40-V 4.5-MHz low-power operation

Learn More

Datasheet

9,888In Stock

Cut Tape

$1.40

$1.03

$0.927

$0.822

Reel

$0.686

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Operational Amplifiers - Op Amps Single 40-V 4.5-MHz low-power operation

OPA991IDCKR
Texas Instruments
1: $1.40
3,443In Stock

Mfr. Part No.
OPA991IDCKR

Mouser Part No
595-OPA991IDCKR

Texas Instruments

Operational Amplifiers - Op Amps Single 40-V 4.5-MHz low-power operation

Learn More

Datasheet

3,443In Stock

Cut Tape

$1.40

$1.03

$0.927

$0.822

Reel

$0.686

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

OPA991

Reel, Cut Tape, MouseReel

Operational Amplifiers - Op Amps Automotive single 40 -V 4.5-MHz low-pow

OPA991QDBVRQ1
Texas Instruments
1: $1.63
2,213In Stock
5,942Expected 13/04/2026

Mfr. Part No.
OPA991QDBVRQ1

Mouser Part No
595-OPA991QDBVRQ1

Texas Instruments

Operational Amplifiers - Op Amps Automotive single 40 -V 4.5-MHz low-pow

Learn More

Datasheet

2,213In Stock

5,942Expected 13/04/2026

Cut Tape

$1.63

$1.20

$1.09

$0.962

Reel

$0.806

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

OPA991

Reel, Cut Tape, MouseReel

Operational Amplifiers - Op Amps Dual 40-V 4.5-MHz lo w-power operation

OPA2991SIRUGR
Texas Instruments
1: $2.56
3,343In Stock

Mfr. Part No.
OPA2991SIRUGR

Mouser Part No
595-OPA2991SIRUGR

Texas Instruments

Operational Amplifiers - Op Amps Dual 40-V 4.5-MHz lo w-power operation

Learn More

Datasheet

3,343In Stock

Cut Tape

$2.56

$1.91

$1.75

$1.57

Reel

$1.32

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

Operational Amplifiers - Op Amps Quad 40-V 4.5-MHz lo w-power operation

OPA4991IDYYR
Texas Instruments
1: $4.08
1,129In Stock

Mfr. Part No.
OPA4991IDYYR

Mouser Part No
595-OPA4991IDYYR

Texas Instruments

Operational Amplifiers - Op Amps Quad 40-V 4.5-MHz lo w-power operation

Learn More

Datasheet

1,129In Stock

Cut Tape

$4.08

$3.07

$2.82

$2.54

View

Reel

$1.73

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

OPA4991

Reel, Cut Tape, MouseReel

Operational Amplifiers - Op Amps Quad 40-V 4.5-MHz lo w-power operation

OPA4991IRUCR
Texas Instruments
1: $3.68
3,597In Stock

Mfr. Part No.
OPA4991IRUCR

Mouser Part No
595-OPA4991IRUCR

Texas Instruments

Operational Amplifiers - Op Amps Quad 40-V 4.5-MHz lo w-power operation

Learn More

Datasheet

3,597In Stock

Cut Tape

$3.68

$2.78

$2.55

$2.30

View

Reel

$1.88

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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

OPAx991/OPAx991-Q1 Operational Amplifiers

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