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: $5.98
7,222In 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

7,222In Stock

Cut Tape

$5.98

$4.52

$4.16

$3.76

View

Reel

$3.11

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 Dual 40-V 4.5-MHz lo w-power operation A A 595-OPA2991IDR

OPA2991IPWR
Texas Instruments
1: $3.21
10,872In 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

Learn More

Datasheet

10,872In Stock

Cut Tape

$3.21

$2.39

$2.17

$1.94

Reel

$1.58

View

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

OPA4991IDYYR
Texas Instruments
1: $5.04
3,397In 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

3,397In Stock

Cut Tape

$5.04

$3.80

$3.48

$3.14

View

Reel

$2.59

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: $3.02
7,948In 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

7,948In Stock

Cut Tape

$3.02

$2.23

$2.04

$1.83

Reel

$1.47

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

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 Automotive dual 40 - V 4.5-MHz low-power

OPA2991QDGKRQ1
Texas Instruments
1: $4.23
16,393In 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

16,393In Stock

Cut Tape

$4.23

$3.17

$2.91

$2.61

Reel

$2.29

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: $5.16
7,500In 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

7,500In Stock

Cut Tape

$5.16

$3.89

$3.57

$3.23

Reel

$2.85

View

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 Single 40-V 4.5-MHz low-power operation

OPA991IDBVR
Texas Instruments
1: $2.36
38,097In 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

38,097In Stock

Cut Tape

$2.36

$1.73

$1.57

$1.39

Reel

$1.17

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

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

OPA2991QPWRQ1
Texas Instruments
1: $3.41
2,637In 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

2,637In Stock

Cut Tape

$3.41

$3.20

$2.92

$2.89

Reel

$2.26

$2.25

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: $6.38
1,942In 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

1,942In Stock

Cut Tape

$6.38

$4.85

$4.46

$4.03

View

Reel

$3.44

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: $3.01
2,586In Stock

Mfr. Part #
OPA991SQDBVRQ1

Mouser Part #
595-OPA991SQDBVRQ1

Texas Instruments

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

Learn More

Datasheet

2,586In Stock

Cut Tape

$3.01

$2.23

$2.03

$1.81

Reel

$1.51

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: $5.98
7,274In 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

7,274In Stock

Cut Tape

$5.98

$4.54

$4.16

$3.77

View

Reel

$3.31

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: $3.53
3,998In Stock

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

3,998In Stock

Cut Tape

$3.53

$2.64

$2.40

$2.15

Reel

$1.81

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: $3.54
1,954In Stock

Mfr. Part #
OPA2991IDSGR

Mouser Part #
595-OPA2991IDSGR

Texas Instruments

Operational Amplifiers - Op Amps 16

Learn More

Datasheet

1,954In Stock

Cut Tape

$3.54

$2.64

$2.40

$2.16

Reel

$1.81

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

OPA4991IDR
Texas Instruments
1: $5.16
316In Stock
2,500Expected 2026-09-18

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

316In Stock

2,500Expected 2026-09-18

Cut Tape

$5.16

$3.89

$3.57

$3.23

Reel

$2.76

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: $2.56
7,833In 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

7,833In Stock

Cut Tape

$2.56

$1.89

$1.71

$1.53

Reel

$1.30

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

OPA2991IDR
Texas Instruments
1: $3.64
7,110In 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

7,110In Stock

Cut Tape

$3.64

$2.71

$2.46

$2.20

Reel

$1.92

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: $4.13
6,641In 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

6,641In Stock

Cut Tape

$4.13

$3.10

$2.84

$2.55

Reel

$2.16

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

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: $5.46
2,330In Stock
14,900On Order

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

2,330In Stock

14,900On Order

Cut Tape

$5.46

$4.12

$3.79

$3.41

View

Reel

$2.92

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 dual 40 - V 4.5-MHz low-power

OPA2991QDRQ1
Texas Instruments
1: $4.23
350In Stock
3,000Expected 2026-09-21

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

350In Stock

3,000Expected 2026-09-21

Cut Tape

$4.23

$3.17

$2.91

$2.61

Reel

$2.22

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 Automotive quad 40 - V 4.5-MHz low-pow

OPA4991QDYYRQ1
Texas Instruments
1: $5.89
35In Stock
3,000On Order

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

35In Stock

3,000On Order

Cut Tape

$5.89

$4.45

$4.09

$3.70

View

Reel

$3.15

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: $2.09
1,638In Stock
3,000Expected 2026-08-10

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

1,638In Stock

3,000Expected 2026-08-10

Cut Tape

$2.09

$1.53

$1.38

$1.22

Reel

$1.02

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: $2.64
157In Stock
6,000On Order

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

157In Stock

6,000On Order

Cut Tape

$2.64

$1.93

$1.76

$1.56

Reel

$1.32

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

OPA4991MDYYREP
Texas Instruments
1: $16.04
12In Stock
3,000Expected 2026-11-09

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

12In Stock

3,000Expected 2026-11-09

Cut Tape

$16.04

$12.80

$11.68

Reel

$11.68

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 Automotive single 40 -V 4.5-MHz low-pow

OPA991QDCKRQ1
Texas Instruments
1: $2.68
54In Stock
3,000Expected 2026-10-19

Mfr. Part #
OPA991QDCKRQ1

Mouser Part #
595-OPA991QDCKRQ1

Texas Instruments

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

Learn More

Datasheet

54In Stock

3,000Expected 2026-10-19

Cut Tape

$2.68

$1.97

$1.80

$1.57

Reel

$1.29

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

OPA2991IDGKR
Texas Instruments
1: $3.66
27,138Expected 2026-09-18

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

27,138Expected 2026-09-18

Cut Tape

$3.66

$2.72

$2.48

$2.22

$2.10

Reel

$1.77

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

OPAx991/OPAx991-Q1 Operational Amplifiers

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