Datasheet

Parametric Test Circuits–AD5222
–7–
REV. 0
V+
DUT
V
MS
A
B
W
V+ = V
DD
1LSB = V+/128
Figure 21. Potentiometer Divider Nonlinearity Error Test
Circuit (INL, DNL)
NO CONNECT
I
W
DUT
V
MS
A
B
W
Figure 22. Resistor Position Nonlinearity Error (Rheostat
Operation; R-INL, R-DNL)
V
MS2
V
W
I
W
= V
DD
/R
NOMINAL
DUT
V
MS1
A
B
W
R
W
= [V
MS1
– V
MS2
]/I
W
Figure 23. Wiper Resistance Test Circuit
PSRR (dB) = 20 LOG ( ––––– )
PSS (%/%) = –––––––
DV
MS
DV
DD
DV
MS
%
DV
DD
%
V+ = V
DD
± 10%
V
DD
V
A
~
V+
V
MS
A
B
W
Figure 24. Power Supply Sensitivity Test Circuit (PSS,
PSRR)
A
B
V
IN
OP279
+5V
V
OUT
DUT
W
+
–5V
Figure 25. Inverting Programmable Gain Test Circuit
+5V
–5V
A
B
V
IN
V
OUT
DUT
W
OP279
Figure 26. Noninverting Programmable Gain Test Circuit
A
B
DUT
W
V
IN
OP42
+15V
V
OUT
–15V
Figure 27. Gain vs. Frequency Test Circuit
I
SW
0 TO V
DD
R
SW
=
0.1V
I
SW
CODE = 00
H
0.1V
DUT
B
W
Figure 28. Incremental ON Resistance Test Circuit