Datasheet

Data Sheet AD5272/AD5274
Rev. D | Page 17 of 28
TEST CIRCUITS
Figure 38 to Figure 42 define the test conditions used in the Specifications section.
V
MS
I
W
A
W
DUT
08076-033
Figure 38. Resistor Position Nonlinearity Error
(Rheostat Operation; R-INL, R-DNL)
R
WA
=
V
MS
I
W
R
W
=
R
WA
2
A
W
I
W
DUT
V
MS
CODE = 0x00
08076-034
Figure 39. Wiper Resistance
V
DD
I
W
V
MS
A
W
V+
ΔV
MS
%
ΔV
DD
%
V
MS
V
DD
V+ = V
DD
±10%
PSRR (dB) = 20 log
PSS (%/%) =
08076-035
Figure 40. Power Supply Sensitivity (PSS, PSRR)
V
MS
A
W
DUT
V
1GΩ
08076-036
Figure 41. Gain vs. Frequency
I
CM
DUT
W
A
NC = NO CONNECT
GND
+2.75V
NC
+2.75V –2.75V
–2.75V
GND
GND
08076-037
Figure 42. Common Leakage Current