®

OPA121

2

NOTES: (1) Sample tested. (2) Offset voltage, offset current, and bias current are specified with the units fully warmed up. (3) Overload recovery is defined as

the time required for the output to return from saturation to linear operation following the removal of a 50% input overdrive. (4) 100

°C/W for KU grade.

SPECIFICATIONS

ELECTRICAL

OPA121KM

OPA121KP, KU

PARAMETER

CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX

UNITS

INPUT

NOISE

(1)

40

50

nV/

√Hz

(1)

15

18

nV/

√Hz

(1)

8

10

nV/

√Hz

(1)

6

7

nV/

√Hz

(1)

0.7

0.8

µVrms

(1)

1.6

2

µVp-p

(1)

15

21

fA, p-p

(1)

0.8

1.1

fA/

√Hz

Input Offset Voltage

±0.5

±2

±0.5

±3mV

Average Drift

±3

±10

±3

±10

µV/°C

Supply Rejection

86

104

86

104

dB

±6

±50

±6

±50

µV/V

Input Bias Current

±1

±5

±1

±10

pA

Device Operating

Input Offset Current

±0.7

±4

±0.7

±8pA

Device Operating

IMPEDANCE

Differential

Ω || pF

Common-Mode

Ω || pF

VOLTAGE RANGE

Common-Mode Input Range

±10

±11

±10

±11

V

Common-Mode Rejection

86

104

82

100

dB

OPEN-LOOP GAIN, DC

Open-Loop Voltage Gain

110

120

106

114

dB

FREQUENCY RESPONSE

Unity Gain, Small Signal

2

2

MHz

Full Power Response

32

32

kHz

Slew Rate

22

V/

µs

Settling Time, 0.1%

66

µs

0.01%

10V Step

10

10

µs

Overload Recovery,

Gain = –1

5

5

µs

RATED OUTPUT

Voltage Output

±12

±11

±12

V

Current Output

±5.5

±10

±5.5

±10

mA

Output Resistance

DC, Open Loop

100

100

Ω

Load Capacitance Stability

Gain = +1

1000

1000

pF

Short Circuit Current

10

40

10

40

mA

POWER SUPPLY

Rated Voltage

±15

±15

VDC

Voltage Range,

Derated Performance

±5

±18

±5

±18

VDC

Current, Quiescent

2.5

4

2.5

4.5

mA

TEMPERATURE RANGE

Specification

Ambient Temperature

0

+70

0

+70

°C

Operating

Ambient Temperature

–40

+85

–25

+85

°C

Storage

Ambient Temperature

–65

+150

–55

+125

°C

200

°C/W

The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes

no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change

without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant

any BURR-BROWN product for use in life support devices and/or systems.