Datasheet

AD5174
Rev. B | Page 11 of 20
TEST CIRCUITS
Figure 21 to Figure 25 define the test conditions used in the Specifications section.
V
MS
I
W
A
W
DUT
08718-033
Figure 21. Resistor Position Nonlinearity Error
(Rheostat Operation; R-INL, R-DNL)
08718-034
R
WA
=
V
MS
I W
R
W
=
R
WA
2
A
W
I
W
DUT
V
MS
CODE = 0x00
Figure 22. Wiper Resistance
V
DD
I
W
V
MS
A
W
V+
∆V
MS
%
∆V
DD
%
V
MS
V
DD
V
+ = V
DD
±10
%
PSRR (dB) = 20 log
PSS (%/%) =
08718-035
Figure 23. Power Supply Sensitivity (PSS, PSRR)
V
MS
A
W
DUT
V
1GΩ
08718-036
Figure 24. Gain vs. Frequency
I
CM
DUT
W
A
NC = NO CONNECT
GND
+2.75V
NC
+2.75V –2.75V
–2.75V
GND
GND
08718-037
Figure 25. Common Leakage Current