AD5258

Rev. 0 | Page 13 of 24

TEST CIRCUITS

Figure 31 through Figure 36 illustrate the test circuits that

define the test conditions used in the product specification

tables.

A

W

B

DUT

V+

Figure 31. Test Circuit for Potentiometer Divider Nonlinearity Error (INL, DNL)

NO CONNECT

A

W

B

DUT

Figure 32. Test Circuit for Resistor Position Nonlinearity Error

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

A

W

B

DUT

Figure 33. Test Circuit for Wiper Resistance

∆V

DUT

(

)

A

W

B

V+

∆V

∆V

MS

∆V

DD

∆V

DD

PSRR (dB) = 20 LOG

PSS (%/%) =

Figure 34. Test Circuit for Power Supply Sensitivity (PSS, PSSR)

+5V

–5V

W

A

+2.5V

B

OFFSET

GND

DUT

AD8610

Figure 35. Test Circuit for Gain vs. Frequency

W

B

DUT

CODE = 0x00

=

0.1V

0.1V

Figure 36. Test Circuit for Common-Mode Leakage Current