INA217

V+

V–

V

O

V+

150Ω

10kΩ

150Ω

100µA

100µA

2

1

8

R

G

3

5

7

4

6

V–

OPA237

V+

V–

V

O

2

1

8

3

5

4

6

7

V

IN–

V

IN+

INA217

47Ω

47Ω

1.2µH

1.2µH

INA217

SBOS247C – JUNE 2002 – REVISED NOVEMBER 2015

www.ti.com

Feature Description (continued)

Figure 14. Input Stabilization Network

7.3.5 Offset Voltage Trim

A variable voltage applied to pin 5, as shown in Figure 15, can be used to adjust the output offset voltage. A

voltage applied to pin 5 is summed with the output signal. An operational amplifier connected as a buffer is used

to provide a low impedance at pin 5 to assure good common-mode rejection.

Figure 15. Offset Voltage Adjustment Circuit

7.4 Device Functional Modes

The INA217 has a single functional mode of operation. The mode is operational when the power supply voltage

exceeds ±4.5 V. The maximum power supply voltage is ±18 V. The INA217 is specified over the temperature

range from –40°C to 85°C and is operational to 125°C.

12

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