20k

Ω

100k

Ω

40k

Ω

100k

Ω

40k

Ω

R

1

100

Ω

REF

V

REF

5V

+IN

−IN

V+

V+

GND

C

1

1000pF

SENSE

REF 2

REF 1

V

IN

+IN

−IN

INA159

a) Unipolar, Noninverting, G = 0.2

20k

Ω

100k

Ω

40k

Ω

100k

Ω

40k

Ω

R

1

100

Ω

REF

V

REF

5V

+IN

−IN

V+

V+

GND

C

1

1000pF

SENSE

REF 2

REF 1

V

IN

+IN

−IN

INA159

b) Bipolar, Noninverting, G = 0.2

20k

Ω

100k

Ω

40k

Ω

100k

Ω

40k

Ω

R

1

100

Ω

ADC

ADC

ADC

REF

V

REF

5V

+IN

−IN

V+

V+

GND

C

1

1000pF

SENSE

REF 2

REF 1

+IN

−IN

INA159

c) Unipolar, Unity Gain

V

IN

INA159-EP

SBOS443 – NOVEMBER 2008 .......................................................................................................................................................................................... www.ti.com

Figure 5. Basic INA159 Configurations

12

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