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AD5235 View Datasheet(PDF) - Analog Devices

Part NameDescriptionManufacturer
AD5235 Nonvolatile Memory, Dual 1024-Position Digital Potentiometer ADI
Analog Devices ADI
AD5235 Datasheet PDF : 32 Pages
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AD5235
TEST CIRCUITS
Figure 27 to Figure 37 define the test conditions used in the Specifications section.
NC
DUT
A
W
B
IW
VMS
NC = NO CONNECT
Figure 27. Resistor Position Nonlinearity Error (Rheostat Operation; R-INL, R-DNL)
OFFSET
GND
A DUT B
VIN
W
5V
OP279
OFFSET BIAS
VOUT
Figure 31. Inverting Gain
5V
DUT
V+ = VDD
A
1LSB = V+/2N
V+
W
B
VMS
Figure 28. Potentiometer Divider Nonlinearity Error (INL, DNL)
OFFSET
GND
VIN
W
OP279
A DUT B
OFFSET BIAS
Figure 32. Noninverting Gain
VOUT
VMS2
DUT
A
W
B
IW = VDD/RNOMINAL
VW
VMS1
RW = [VMS1 – VMS2]/IW
Figure 29. Wiper Resistance
VA
VDD
V+ ~
A
W
B
VMS
( ) V+ = VDD ±10%
VMS
PSRR (dB) = 20 LOG VDD
PSS (%/%) = VMS%
VDD%
Figure 30. Power Supply Sensitivity (PSS, PSRR)
VIN
OFFSET
GND
A
W
DUT
B
2.5V
+15V
OP42
–15V
Figure 33. Gain vs. Frequency
VOUT
DUT
W
B
A = NC
RSW =
0.1V
ISW
CODE = 0x00
+
ISW
0.1V
VSS TO VDD
Figure 34. Incremental On Resistance
Rev. E | Page 14 of 32
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