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 quad 40 - V 4.5-MHz low-pow

OPA4991QDRQ1
Texas Instruments
1: $5.64
7,351In 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

7,351In Stock

Cut Tape

$5.64

$4.27

$3.93

$3.55

View

Reel

$3.06

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

OPA4991

Reel, Cut Tape, MouseReel

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

OPA4991IDYYR
Texas Instruments
1: $4.76
3,634In 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

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Datasheet

3,634In Stock

Cut Tape

$4.76

$3.59

$3.29

$2.96

Reel

$2.53

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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

OPA4991

Reel, Cut Tape, MouseReel

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

OPA991TIDCKR
Texas Instruments
1: $2.86
7,992In 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

7,992In Stock

Cut Tape

$2.86

$2.11

$1.93

$1.73

Reel

$1.44

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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

OPA991

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: $3.03
10,878In 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

10,878In Stock

Cut Tape

$3.03

$2.26

$2.05

$1.84

View

Reel

$1.44

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

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

OPA2991QDGKRQ1
Texas Instruments
1: $4.00
16,410In 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

Learn More

Datasheet

16,410In Stock

Cut Tape

$4.00

$2.99

$2.75

$2.46

Reel

$2.16

View

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

OPA2991

Reel, Cut Tape, MouseReel

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

OPA4991IPWR
Texas Instruments
1: $4.87
7,633In 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

Learn More

Datasheet

7,633In Stock

Cut Tape

$4.87

$3.67

$3.37

$3.05

View

Reel

$2.62

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

OPA4991

Reel, Cut Tape, MouseReel

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

OPA2991QPWRQ1
Texas Instruments
1: $3.22
2,637In 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

2,637In Stock

Cut Tape

$3.22

$3.02

$2.76

$2.73

Reel

$2.19

$2.16

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

21 V/us

TSSOP-8

SMD/SMT

OPA2991

Reel, Cut Tape, MouseReel

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

OPA4991TQPWRQ1
Texas Instruments
1: $6.02
1,959In 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

1,959In Stock

Cut Tape

$6.02

$4.57

$4.22

$3.81

View

Reel

$3.28

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

OPA4991

Reel, Cut Tape, MouseReel

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

OPA991SQDBVRQ1
Texas Instruments
1: $2.61
2,586In Stock

Mfr. Part No.
OPA991SQDBVRQ1

Mouser Part No
595-OPA991SQDBVRQ1

Texas Instruments

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

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Datasheet

2,586In Stock

Cut Tape

$2.61

$1.93

$1.75

$1.56

Reel

$1.32

View

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

OPA991

Reel, Cut Tape, MouseReel

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

OPA4991QPWRQ1
Texas Instruments
1: $5.64
7,340In 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

7,340In Stock

Cut Tape

$5.64

$4.28

$3.93

$3.56

View

Reel

$3.06

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

OPA4991

Reel, Cut Tape, MouseReel

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

OPA2991IDDFR
Texas Instruments
1: $3.37
4,080In 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

4,080In Stock

Cut Tape

$3.37

$2.49

$2.27

$2.03

Reel

$1.74

View

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

Operational Amplifiers - Op Amps 16

OPA2991IDSGR
Texas Instruments
1: $3.35
3,312In Stock

Mfr. Part No.
OPA2991IDSGR

Mouser Part No
595-OPA2991IDSGR

Texas Instruments

Operational Amplifiers - Op Amps 16

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Datasheet

3,312In Stock

Cut Tape

$3.35

$2.49

$2.27

$2.04

Reel

$1.71

View

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

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

OPA2991QDRQ1
Texas Instruments
1: $4.00
1,631In 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

1,631In Stock

Cut Tape

$4.00

$2.99

$2.75

$2.46

Reel

$2.09

View

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

OPA2991

Reel, Cut Tape, MouseReel

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

OPA4991IDR
Texas Instruments
1: $4.87
1,534In Stock
2,500Expected 2/11/2026

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

1,534In Stock

2,500Expected 2/11/2026

Cut Tape

$4.87

$3.67

$3.37

$3.05

Reel

$2.61

View

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

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

OPA991SIDBVR
Texas Instruments
1: $2.42
7,776In 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

Learn More

Datasheet

7,776In Stock

Cut Tape

$2.42

$1.78

$1.62

$1.44

Reel

$1.23

View

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

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

OPA991QDCKRQ1
Texas Instruments
1: $2.49
597In Stock
3,000Expected 19/10/2026

Mfr. Part No.
OPA991QDCKRQ1

Mouser Part No
595-OPA991QDCKRQ1

Texas Instruments

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

Learn More

Datasheet

597In Stock

3,000Expected 19/10/2026

Cut Tape

$2.49

$1.82

$1.66

$1.47

Reel

$1.25

View

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

OPA991

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: $3.44
7,232In 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

7,232In Stock

Cut Tape

$3.44

$2.56

$2.33

$2.08

Reel

$1.81

View

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

OPA2991

Reel, Cut Tape, MouseReel

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

OPA2991SIRUGR
Texas Instruments
1: $3.94
7,544In 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

7,544In Stock

Cut Tape

$3.94

$2.94

$2.69

$2.41

$2.28

Reel

$1.93

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

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

OPA4991IRUCR
Texas Instruments
1: $5.15
3,528In Stock
6,000Expected 3/8/2026

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

3,528In Stock

6,000Expected 3/8/2026

Cut Tape

$5.15

$3.89

$3.58

$3.22

View

Reel

$2.76

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

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

OPA4991QDYYRQ1
Texas Instruments
1: $5.56
98In Stock
3,000On Order

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

98In Stock

3,000On Order

Cut Tape

$5.56

$4.20

$3.86

$3.50

View

Reel

$2.99

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

OPA4991

Reel, Cut Tape, MouseReel

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

OPA991IDCKR
Texas Instruments
1: $1.97
1,844In Stock
3,000Expected 3/8/2026

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

1,844In Stock

3,000Expected 3/8/2026

Cut Tape

$1.97

$1.44

$1.30

$1.15

Reel

$0.96

View

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

OPA991

Reel, Cut Tape, MouseReel

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

OPA991QDBVRQ1
Texas Instruments
1: $2.49
239In Stock
6,000On Order

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

239In Stock

6,000On Order

Cut Tape

$2.49

$1.82

$1.66

$1.47

Reel

$1.25

View

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

OPA991

Reel, Cut Tape, MouseReel

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

OPA2991IDGKR
Texas Instruments
1: $3.45
638In Stock
27,500On Order

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

638In Stock

27,500On Order

Cut Tape

$3.45

$2.57

$2.34

$2.09

$1.99

Reel

$1.67

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

OPA2991

Reel, Cut Tape, MouseReel

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

OPA4991MDYYREP
Texas Instruments
1: $15.15
12In Stock
3,000Expected 2/11/2026

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

12In Stock

3,000Expected 2/11/2026

Cut Tape

$15.15

$12.09

$11.03

Reel

$11.03

MouseReel Available

Min.: 1
Mult.: 1
Max.: 70

: 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 Single 40-V 4.5-MHz low-power operation

OPA991IDBVR
Texas Instruments
1: $2.23
43,149Expected 23/7/2026

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

43,149Expected 23/7/2026

Cut Tape

$2.23

$1.63

$1.48

$1.32

Reel

$1.10

View

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

OPAx991/OPAx991-Q1 Operational Amplifiers

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