Data Sheet

AD5246

Rev. C | Page 11 of 16

TEST CIRCUITS

Figure 21 to Figure 25 define the test conditions used in the product Specification tables.

W

B

DUT

Figure 21. Test Circuit for Resistor Position Nonlinearity Error

(Rheostat Operation; R-INL, R-DNL)

∆V

PSS (%/%) =

PSRR (dB) = 20 LOG

DUT

MS

DD

(

)

W

B

V+

∆V

∆V

∆V

±

Figure 22. Test Circuit for Power Supply Sensitivity (PSS, PSSR)

W

10k

Ω

10k

Ω

2.5V

B

+15V

–15V

OP27

DUT

Figure 23. Test Circuit for Gain vs. Frequency

W

B

DUT

CODE = 0x00

0.1V

0.1V

Figure 24. Test Circuit for Incremental On Resistance

W

B

NO CONNECT

DUT

Figure 25. Test Circuit for Common-Mode Leakage Current