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: $4.06
22,350In Stock

Mfr. Part #
OPA2991QDGKRQ1

Mouser Part #
595-OPA2991QDGKRQ1

Texas Instruments

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

Learn More

Datasheet

22,350In Stock

Cut Tape

$4.06

$3.04

$2.77

$2.50

Reel

$2.00

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: $4.48
11,253In Stock

Mfr. Part #
OPA4991IPWR

Mouser Part #
595-OPA4991IPWR

Texas Instruments

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

Learn More

Datasheet

11,253In Stock

Cut Tape

$4.48

$3.35

$3.07

$2.76

Reel

$2.23

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: $5.19
8,456In Stock

Mfr. Part #
OPA4991QDRQ1

Mouser Part #
595-OPA4991QDRQ1

Texas Instruments

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

Learn More

Datasheet

8,456In Stock

Cut Tape

$5.19

$3.91

$3.58

$3.24

View

Reel

$2.53

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: $5.19
2,527In Stock

Mfr. Part #
OPA4991TQPWRQ1

Mouser Part #
595-OPA4991TQPWRQ1

Texas Instruments

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

Learn More

Datasheet

2,527In Stock

Cut Tape

$5.19

$3.91

$3.58

$3.24

View

Reel

$2.64

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: $3.36
11,258In Stock

Mfr. Part #
OPA2991IPWR

Mouser Part #
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

11,258In Stock

Cut Tape

$3.36

$2.50

$2.28

$2.03

Reel

$1.63

View

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: $2.79
8,614In Stock

Mfr. Part #
OPA991TIDCKR

Mouser Part #
595-OPA991TIDCKR

Texas Instruments

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

Learn More

Datasheet

8,614In Stock

Cut Tape

$2.79

$2.06

$1.86

$1.66

Reel

$1.40

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: $2.37
12,533In Stock

Mfr. Part #
OPA991SIDBVR

Mouser Part #
595-OPA991SIDBVR

Texas Instruments

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

Learn More

Datasheet

12,533In Stock

Cut Tape

$2.37

$1.74

$1.58

$1.39

Reel

$1.12

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

OPA991SQDBVRQ1
Texas Instruments
1: $2.90
2,881In Stock
New Product

Mfr. Part #
OPA991SQDBVRQ1

Mouser Part #
595-OPA991SQDBVRQ1

New Product

Texas Instruments

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

Learn More

Datasheet

2,881In Stock

Cut Tape

$2.90

$2.14

$1.95

$1.74

Reel

$1.46

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 single 40 -V 4.5-MHz low-pow

OPA991QDCKRQ1
Texas Instruments
1: $2.53
1,615In Stock
New Product

Mfr. Part #
OPA991QDCKRQ1

Mouser Part #
595-OPA991QDCKRQ1

New Product

Texas Instruments

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

Learn More

Datasheet

1,615In Stock

Cut Tape

$2.53

$1.86

$1.69

$1.49

Reel

$1.25

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 dual 40 - V 4.5-MHz low-power

OPA2991QPWRQ1
Texas Instruments
1: $3.67
2,936In Stock

Mfr. Part #
OPA2991QPWRQ1

Mouser Part #
595-OPA2991QPWRQ1

Texas Instruments

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

Learn More

Datasheet

2,936In Stock

Cut Tape

$3.67

$3.12

Reel

$2.00

$1.95

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: $15.38
1,567In Stock

Mfr. Part #
OPA4991MDYYREP

Mouser Part #
595-OPA4991MDYYREP

Texas Instruments

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

Learn More

Datasheet

1,567In Stock

Cut Tape

$15.38

$12.00

$11.14

$10.21

View

Reel

$8.99

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: $3.30
2,400In Stock
6,000Expected 2026-02-16

Mfr. Part #
OPA2991IDDFR

Mouser Part #
595-OPA2991IDDFR

Texas Instruments

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

Learn More

Datasheet

2,400In Stock

6,000Expected 2026-02-16

Cut Tape

$3.30

$2.42

$2.20

$1.97

Reel

$1.66

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: $3.36
10,889In Stock

Mfr. Part #
OPA2991IDGKR

Mouser Part #
595-OPA2991IDGKR

Texas Instruments

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

Learn More

Datasheet

10,889In Stock

Cut Tape

$3.36

$2.50

$2.28

$2.03

Reel

$1.72

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: $3.36
2,695In Stock

Mfr. Part #
OPA2991IDR

Mouser Part #
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

2,695In Stock

Cut Tape

$3.36

$2.48

$2.26

$2.02

Reel

$1.72

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: $3.69
3,168In Stock

Mfr. Part #
OPA2991IDSGR

Mouser Part #
595-OPA2991IDSGR

Texas Instruments

Operational Amplifiers - Op Amps 16

Learn More

Datasheet

3,168In Stock

Cut Tape

$3.69

$2.74

$2.51

$2.25

Reel

$1.89

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

OPA4991IDR
Texas Instruments
1: $4.48
4,753In Stock

Mfr. Part #
OPA4991IDR

Mouser Part #
595-OPA4991IDR

Texas Instruments

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

Learn More

Datasheet

4,753In Stock

Cut Tape

$4.48

$3.35

$3.07

$2.76

View

Reel

$2.36

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: $5.12
2,637In Stock

Mfr. Part #
OPA4991QDYYRQ1

Mouser Part #
595-OPA4991QDYYRQ1

Texas Instruments

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

Learn More

Datasheet

2,637In Stock

Cut Tape

$5.12

$3.84

$3.53

$3.18

Reel

$2.70

View

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: $5.19
6,085In Stock

Mfr. Part #
OPA4991QPWRQ1

Mouser Part #
595-OPA4991QPWRQ1

Texas Instruments

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

Learn More

Datasheet

6,085In Stock

Cut Tape

$5.19

$3.91

$3.58

$3.24

Reel

$2.76

View

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: $2.20
14,422In Stock

Mfr. Part #
OPA991IDBVR

Mouser Part #
595-OPA991IDBVR

Texas Instruments

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

Learn More

Datasheet

14,422In Stock

Cut Tape

$2.20

$1.60

$1.45

$1.28

Reel

$1.07

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

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: $2.19
4,463In Stock

Mfr. Part #
OPA991IDCKR

Mouser Part #
595-OPA991IDCKR

Texas Instruments

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

Learn More

Datasheet

4,463In Stock

Cut Tape

$2.19

$1.60

$1.44

$1.27

Reel

$1.06

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: $2.53
5,704In Stock

Mfr. Part #
OPA991QDBVRQ1

Mouser Part #
595-OPA991QDBVRQ1

Texas Instruments

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

Learn More

Datasheet

5,704In Stock

Cut Tape

$2.53

$1.86

$1.69

$1.49

Reel

$1.28

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

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: $3.98
3,628In Stock

Mfr. Part #
OPA2991SIRUGR

Mouser Part #
595-OPA2991SIRUGR

Texas Instruments

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

Learn More

Datasheet

3,628In Stock

Cut Tape

$3.98

$2.96

$2.71

$2.43

Reel

$2.05

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: $4.39
1,363In Stock

Mfr. Part #
OPA4991IDYYR

Mouser Part #
595-OPA4991IDYYR

Texas Instruments

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

Learn More

Datasheet

1,363In Stock

Cut Tape

$4.39

$3.29

$3.01

$2.70

Reel

$2.29

View

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: $4.74
1,358In Stock
3,000Expected 2026-02-10

Mfr. Part #
OPA4991IRUCR

Mouser Part #
595-OPA4991IRUCR

Texas Instruments

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

Learn More

Datasheet

1,358In Stock

3,000Expected 2026-02-10

Cut Tape

$4.74

$3.55

$3.26

$2.93

Reel

$2.50

View

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

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

OPA2991QDRQ1
Texas Instruments
1: $6.09
727In Stock

Mfr. Part #
OPA2991QDRQ1

Mouser Part #
595-OPA2991QDRQ1

Texas Instruments

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

Learn More

Datasheet

727In Stock

Cut Tape

$6.09

$4.12

$3.81

$3.32

Reel

$2.12

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

OPAx991/OPAx991-Q1 Operational Amplifiers

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