OPA4131NA datasheet(4/7 Pages) BURR-BROWN

Part #	OPA4131NA

Description	General Purpose FET-INPUT OPERATIONAL AMPLIFIERS

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Manufacturer	BURR-BROWN [Burr-Brown (TI)]

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4

®

OPA131/2131/4131

TYPICAL PERFORMANCE CURVES

At TA = +25°C, VS = ±15V, and RL = 2kΩ, unless otherwise noted.

POWER SUPPLY AND COMMON-MODE REJECTION

vs FREQUENCY

Frequency (Hz)

120

100

80

60

40

20

0

120

100

80

60

40

20

0

10

100

1k

10k

100k

1M

CMR

+PSR

–PSR

CHANNEL SEPARATION vs FREQUENCY

Frequency (Hz)

160

140

120

100

80

10

100

1k

10k

100k

Dual and quad devices.

G = 1, all channels.

Quad measured channel

A to D or B to C—other

combinations yield improved

rejection.

R

L = ∞

R

L = 2kΩ

OPEN-LOOP GAIN/PHASE vs FREQUENCY

1

120

100

80

60

40

20

0

–20

0

–45

–90

–135

–180

Frequency (Hz)

10

100

1k

10k

100k

1M

10M

∅

G

INPUT BIAS AND INPUT OFFSET CURRENT

vs TEMPERATURE

Ambient Temperature (°C)

10k

1k

100

10

1

0.1

0.01

–75

–50

–25

0

25

50

75

100

125

I

B

I

OS

V

CM = 0V

INPUT BIAS CURRENT

vs INPUT COMMON-MODE VOLTAGE

Common-Mode Voltage (V)

1k

100

10

1

–15

–10

–5

0

5

10

15

Input bias current is a

function of the voltage

between the V– supply

and the inputs.

V

S = ±15V

V

S = ±5V

INPUT VOLTAGE AND CURRENT NOISE

SPECTRAL DENSITY vs FREQUENCY

1

1k

100

10

Frequency (Hz)

10

100

1k

10k

100k

1M

1

1k

100

10

1

Voltage Noise

Current Noise

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