Datasheet

AD5203
–8– REV. 0
–Parametric Test Circuits
V+
DUT
V
MS
A
B
W
V+ = V
DD
1LSB = V+/64
Figure 26. Potentiometer Divider Nonlinearity Error Test
Circuit (INL, DNL)
NO CONNECT
I
W
DUT
V
MS
A
B
W
Figure 27. Resistor Position Nonlinearity Error (Rheostat
Operation; R-INL, R-DNL)
I
MS
V
W
I
W
= 1V/R
NOMINAL
V+
DUT
V
MS
A
B
W
V
W2
– [V
W1
+ I
W
(R
AW
II R
BW
)]
I
W
V+ < V
DD
WHERE V
W1
= V
MS
WHEN I
W
= 0
AND V
W2
= V
MS
WHEN I
W
= 1/R
R
W
= ––––––––––––––––––––––––––
␣ ␣ Figure 28.␣ 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 29. Power Supply Sensitivity Test Circuit (PSS,
PSRR)
~
A
B
V
IN
2.5V DC
OP279
+5V
V
OUT
DUT
W
OFFSET
GND
Figure 30. Inverting Programmable Gain Test Circuit
~
AB
V
IN
2.5V
OP279
+5V
V
OUT
DUT
W
OFFSET
GND
␣ Figure 31. Noninverting Programmable Gain Test Circuit
+15V
–15V
A
B
V
IN
2.5V
OP42
V
OUT
DUT
W
OFFSET
GND
~
␣ Figure 32. Gain vs. Frequency Test Circuit
I
SW
0 TO V
DD
R
SW
=
0.1V
I
SW
CODE = ØØ
H
0.1V
DUT
B
W
Figure 33. Incremental ON Resistance Test Circuit