Datasheet

AD5241/AD5242
Rev. C | Page 11 of 20
TEST CIRCUITS
Figure 22 to Figure 30 define the test conditions used in the product specifications table.
V
MS
A
W
B
DUT
0
0926-029
V+
V+ = V
DD
1 LSB = V+/2
N
Figure 22. Potentiometer Divider Nonlinearity Error (INL, DNL)
NO CONNECT
I
W
V
MS
A
W
B
DUT
00926-030
Figure 23. Resistor Position Nonlinearity Error
(Rheostat Operation; R-INL, R-DNL)
V
MS1
I
W
= V
DD
/R
NOMINAL
V
MS2
V
W
A
W
B
DUT
R
W
= [V
MS1
– V
MS2
]/I
W
00926-031
Figure 24. Wiper Resistance
Δ V
DD
%
Δ V
MS
%
PSS (%/%) =
V+ = V
DD
±10%
PSRR (dB) = 20 LOG
V
DD
V
A
V
MS
A
W
B
V+
Δ V
DD
Δ V
MS
0
0926-032
Figure 25. Power Supply Sensitivity (PSS, PSRR)
00926-033
OP279
W
5V
B
V
OUT
OFFSET
GND
OFFSET
BIAS
A
DUT
Figure 26. Inverting Gain
B
A
V
IN
OP279
W
5
V
V
OUT
OFFSET
GND
OFFSET
BIAS
DUT
00926-034
Figure 27. Noninverting Gain
+15V
–15V
W
A
2.5V
B
V
OUT
O
FFSET
GND
DUT
OP42
V
IN
00926-035
Figure 28. Gain vs. Frequency
W
B
DUT
I
SW
CODE = 0x00
R
SW
=
0.1
V
I
SW
0.1V
V
SS
TO V
DD
00926-036
Figure 29. Incremental On Resistance
W
B
V
CM
I
CM
A
NC
GND
NC
V
SS
V
DD
DUT
00926-037
Figure 30. Common-Mode Leakage Current