2

®

INA125

SPECIFICATIONS: VS = ±15V

At TA = +25°C, VS = ±15V, IA common = 0V, VREF common = 0V, and RL = 10kΩ, unless otherwise noted.

INA125P, U

INA125PA, UA

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.

PARAMETER

CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX

UNITS

INPUT

Offset Voltage, RTI

Initial

±50

±250

T

±500

µV

vs Temperature

±0.25

±2

T

±5

µV/°C

vs Power Supply

VS = ±1.35V to ±18V, G = 4

±3

±20

T

±50

µV/V

Long-Term Stability

±0.2

T

µV/mo

Impedance, Differential

1011 || 2

T

Ω || pF

Common-Mode

1011 || 9

T

Ω || pF

Safe Input Voltage

±40

T

V

Input Voltage Range

See Text

T

Common-Mode Rejection

VCM = –10.7V to +10.2V

G = 4

78

84

72

T

dB

G = 10

86

94

80

T

dB

G = 100

100

114

90

T

dB

G = 500

100

114

90

T

dB

BIAS CURRENT

VCM = 0V

10

25

T

50

nA

vs Temperature

±60

T

pA/

°C

Offset Current

±0.5

±2.5

T

±5nA

vs Temperature

±0.5

T

pA/

°C

NOISE, RTI

RS = 0Ω

Voltage Noise, f = 10Hz

40

T

nV/

√Hz

f = 100Hz

38

T

nV/

√Hz

f = 1kHz

38

T

nV/

√Hz

f = 0.1Hz to 10Hz

0.8

T

µVp-p

Current Noise, f = 10Hz

170

T

fA/

√Hz

f = 1kHz

56

T

fA/

√Hz

f = 0.1Hz to 10Hz

5

T

pAp-p

GAIN

Gain Equation

4 + 60k

Ω/R

G

T

V/V

Range of Gain

4

10,000

TT

V/V

Gain Error

VO = –14V to +13.3V

G = 4

±0.01

±0.075

T

±0.1

%

G = 10

±0.03

±0.3

T

±0.5

%

G = 100

±0.05

±0.5

T

±1%

G = 500

±0.1

T

%

Gain vs Temperature

G = 4

±1

±15

TT

ppm/

°C

G > 4(1)

±25

±100

TT

ppm/

°C

Nonlinearity

VO = –14V to +13.3V

G = 4

±0.0004

±0.002

T

±0.004

% of FS

G = 10

±0.0004

±0.002

T

±0.004

% of FS

G = 100

±0.001

±0.01

TT

% of FS

G = 500

±0.002

T

% of FS

OUTPUT

Voltage: Positive

(V+)–1.7

(V+)–0.9

TT

V

Negative

(V–)+1

(V–)+0.4

TT

V

Load Capacitance Stability

1000

T

pF

Short-Circuit Current

–9/+12

T

mA

VOLTAGE REFERENCE

VREF = +2.5V, +5V, +10V

Accuracy

IL = 0

±0.15

±0.5

T

±1%

vs Temperature

IL = 0

±18

±35

T

±100

ppm/

°C

vs Power Supply, V+

V+ = (VREF + 1.25V) to +36V

±20

±50

T

±100

ppm/V

vs Load

IL = 0 to 5mA

3

75

TT

ppm/mA

Dropout Voltage, (V+) – VREF(2)

Ref Load = 2k

Ω

1.25

1

TT

V

Bandgap Voltage Reference

1.24

T

V

Accuracy

IL = 0

±0.5

T

%

vs Temperature

IL = 0

±18

T

ppm/

°C