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: $4.15
7,384In 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

7,384In Stock

Cut Tape

$4.15

$3.15

$2.89

$2.61

View

Reel

$2.25

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 Automotive quad 40 - V 4.5-MHz low-pow

OPA4991TQPWRQ1
Texas Instruments
1: $4.43
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

$4.43

$3.37

$3.10

$2.80

View

Reel

$2.41

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 Single 40-V 4.5-MHz low-power operation

OPA991TIDCKR
Texas Instruments
1: $2.10
8,047In 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

8,047In Stock

Cut Tape

$2.10

$1.55

$1.42

$1.27

Reel

$1.06

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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

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: $2.23
10,903In 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

10,903In Stock

Cut Tape

$2.23

$1.66

$1.51

$1.35

Reel

$1.15

View

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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

OPA2991QPWRQ1
Texas Instruments
1: $2.37
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

$2.37

$2.22

$2.03

$2.01

Reel

$1.61

$1.59

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 single 40 -V 4.5-MHz low-pow

OPA991QDCKRQ1
Texas Instruments
1: $1.67
1,846In Stock

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

1,846In Stock

Cut Tape

$1.67

$1.23

$1.12

$0.991

Reel

$0.83

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 Automotive single 40 -V 4.5-MHz low-pow

OPA991SQDBVRQ1
Texas Instruments
1: $1.92
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

$1.92

$1.42

$1.29

$1.15

Reel

$0.967

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 dual 40 - V 4.5-MHz low-power

OPA2991QDGKRQ1
Texas Instruments
1: $2.94
16,749In 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

16,749In Stock

Cut Tape

$2.94

$2.20

$2.02

$1.81

Reel

$1.59

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: $3.58
7,677In 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

7,677In Stock

Cut Tape

$3.58

$2.70

$2.48

$2.24

View

Reel

$1.93

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 quad 40 - V 4.5-MHz low-pow

OPA4991QPWRQ1
Texas Instruments
1: $4.15
7,455In 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

7,455In Stock

Cut Tape

$4.15

$3.15

$2.89

$2.62

View

Reel

$2.25

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: $2.48
4,142In 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

4,142In Stock

Cut Tape

$2.48

$1.83

$1.67

$1.49

Reel

$1.28

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 Dual 40-V 4.5-MHz lo w-power operation

OPA2991IDGKR
Texas Instruments
1: $2.54
6,159In 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

6,159In Stock

Cut Tape

$2.54

$1.89

$1.72

$1.54

$1.46

Reel

$1.23

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 Dual 40-V 4.5-MHz lo w-power operation A A 595-OPA2991IPWR

OPA2991IDR
Texas Instruments
1: $2.53
7,898In 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

7,898In Stock

Cut Tape

$2.53

$1.88

$1.71

$1.53

Reel

$1.33

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 16

OPA2991IDSGR
Texas Instruments
1: $2.46
3,937In Stock

Mfr. Part No.
OPA2991IDSGR

Mouser Part No
595-OPA2991IDSGR

Texas Instruments

Operational Amplifiers - Op Amps 16

Learn More

Datasheet

3,937In Stock

Cut Tape

$2.46

$1.83

$1.67

$1.50

Reel

$1.26

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: $2.94
1,632In 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

1,632In Stock

Cut Tape

$2.94

$2.20

$2.02

$1.81

Reel

$1.54

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: $3.58
1,433In Stock
2,500Expected 02/11/2026

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

1,433In Stock

2,500Expected 02/11/2026

Cut Tape

$3.58

$2.70

$2.48

$2.24

Reel

$1.92

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

OPA991IDCKR
Texas Instruments
1: $1.45
2,508In 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

2,508In Stock

Cut Tape

$1.45

$1.06

$0.955

$0.847

Reel

$0.706

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: $1.83
1,779In Stock
6,000Expected 27/07/2026

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

1,779In Stock

6,000Expected 27/07/2026

Cut Tape

$1.83

$1.34

$1.22

$1.08

Reel

$0.918

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 Single 40-V 4.5-MHz low-power operation

OPA991SIDBVR
Texas Instruments
1: $1.78
8,293In 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

8,293In Stock

Cut Tape

$1.78

$1.31

$1.19

$1.06

Reel

$0.906

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 Enhanced-product qu ad 40-V 4.5-MHz rai

OPA4991MDYYREP
Texas Instruments
1: $10.21
21In Stock
3,000Expected 19/10/2026

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

21In Stock

3,000Expected 19/10/2026

Cut Tape

$10.21

$7.97

$7.41

Reel

$7.41

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 Dual 40-V 4.5-MHz lo w-power operation

OPA2991SIRUGR
Texas Instruments
1: $2.90
8,901In 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

8,901In Stock

Cut Tape

$2.90

$2.16

$1.98

$1.77

$1.68

Reel

$1.42

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: $3.79
6,488In 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

6,488In Stock

Cut Tape

$3.79

$2.86

$2.63

$2.37

View

Reel

$2.03

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: $4.09
305In Stock
3,000Expected 22/07/2026

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

305In Stock

3,000Expected 22/07/2026

Cut Tape

$4.09

$3.09

$2.84

$2.57

View

Reel

$2.20

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 Quad 40-V 4.5-MHz lo w-power operation

OPA4991IDYYR
Texas Instruments
1: $3.50
644In Stock
3,000Expected 08/07/2026

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

644In Stock

3,000Expected 08/07/2026

Cut Tape

$3.50

$2.64

$2.42

$2.18

Reel

$1.86

View

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

OPA991IDBVR
Texas Instruments
1: $1.64
43,305On Order

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

43,305On Order

Cut Tape

$1.64

$1.20

$1.09

$0.967

Reel

$0.81

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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