Datasheet
AD5233
Rev. B | Page 13 of 32
TEST CIRCUITS
Figure 25 to Figure 35 define the test conditions used in the specifications.
A
W
B
NC
I
W
DUT
V
MS
NC = NO CONNECT
02794-026
Figure 25. Resistor Position Nonlinearity Error
(Rheostat Operation; R-INL, R-DNL)
A
W
B
DUT
V
MS
V+
V
+ = V
DD
1LSB = V+/2
N
0
2794-027
Figure 26. Potentiometer Divider Nonlinearity Error (INL, DNL)
A
W
B
DUT
I
W
V
MS1
V
MS2
V
W
R
W
= [V
MS1
– V
MS2
]/I
W
0
2794-028
Figure 27. Wiper Resistance
A
W
B
V
MS
V+ = V
DD
±10%
PSRR (dB) = 20 log
V
A
V
DD
PSS (%/%) =
ΔV
MS
%
ΔV
DD
%
ΔV
MS
ΔV
DD
()
V+
02794-029
Figure 28. Power Supply Sensitivity (PSS, PSRR)
OFFSET BIAS
OFFSET
GND
A
DUT B
W
5V
V
IN
V
OUT
OP279
02794-030
Figure 29. Inverting Gain
OFFSET BIAS
OFFSET
GND
ABDUT
W
5
V
V
IN
V
OUT
OP279
0
2794-031
Figure 30. Noninverting Gain
OFFSET
GND
A
B
DUT
W
+15
V
V
IN
V
OUT
OP42
–15V
2.5V
02794-032
Figure 31. Gain vs. Frequency
+
DUT
CODE = 0x00
0.1V
V
BIAS
R
SW
=
0.1
V
I
SW
I
SW
W
B
A = NC
–
02794-033
Figure 32. Incremental On Resistance