AD5232
TEST CIRCUITS
NC
DUT
A
W
B
Data Sheet
A
DUT B
W
5V
I
W
V
IN
OFFSET
GND
02618-022
OP279
V
OUT
02618-026
V
MS
OFFSET BIAS
NC = NO CONNECT
Figure 22. Resistor Position Nonlinearity Error (Rheostat Operation; R-INL, R-DNL)
Figure 26. Inverting Gain
5V
DUT
A
V+
B
W
V+ = V
DD
1LSB = V+/2
N
V
IN
W
02618-023
OP279
V
OUT
V
MS
OFFSET
GND
A
DUT
B
02618-027
OFFSET BIAS
Figure 23. Potentiometer Divider Nonlinearity Error (INL, DNL)
DUT
A
V
MS2
B
V
MS1
02618-024
Figure 27. Noninverting Gain
+15V
W
DUT
B
2.5V
OP42
V
OUT
02618-028
02618-029
I
W
= V
DD
/R
NOMINAL
V
W
A
V
IN
W
R
W
= [V
MS1
– V
MS2
]/I
W
OFFSET
GND
–15V
Figure 24. Wiper Resistance
V
A
V+ = V
DD
± 10%
V
DD
V+
A
B
Figure 28. Gain vs. Frequency
0.1V
I
SW
~
W
V
MS
PSRR (dB) = 20 LOG
PSS (%/%) =
ΔV
MS
%
ΔV
DD
%
(
ΔV
MS
ΔV
DD
)
02618-025
DUT
A
B
W
R
SW
=
CODE = 0x00
+
I
SW
V
SS
TO V
DD
0.1V
–
A = NC
Figure 25. Power Supply Sensitivity (PSS, PSRR)
Figure 29. Incremental On Resistance
Rev. C | Page 12 of 24
AD [ ANALOG DEVICES ]
