AD5232

Data Sheet

Rev. C | Page 12 of 24

TEST CIRCUITS

Figure 22 to Figure 32 define the test conditions that are used in the Specifications section.

A

W

B

NC

DUT

NC = NO CONNECT

Figure 22. Resistor Position Nonlinearity Error (Rheostat Operation; R-INL, R-DNL)

A

W

B

DUT

V+

Figure 23. Potentiometer Divider Nonlinearity Error (INL, DNL)

A

W

B

DUT

Figure 24. Wiper Resistance

A

W

B

PSS (%/%) =

~

V+

PSRR (dB) = 20 LOG

( )

Figure 25. Power Supply Sensitivity (PSS, PSRR)

OFFSET BIAS

AB

DUT

W

5V

OP279

OFFSET

GND

Figure 26. Inverting Gain

OFFSET BIAS

AB

DUT

W

5V

OFFSET

GND

OP279

Figure 27. Noninverting Gain

A

B

DUT

W

+15V

OP42

–15V

2.5V

OFFSET

GND

Figure 28. Gain vs. Frequency

+

–

DUT

CODE = 0x00

0.1V

W

B

A

A = NC

0.1V

Figure 29. Incremental On Resistance