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AD5112 Datasheet(PDF) 18 Page - Analog Devices

Part No. AD5112
Description  Single-Channel, 128-/64-/32-Position, I2C, ±8% Resistor Tolerance, Nonvolatile Digital Potentiometer
Download  28 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5112 Datasheet(HTML) 18 Page - Analog Devices

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AD5110/AD5112/AD5114
Data Sheet
Rev. 0 | Page 18 of 28
TEST CIRCUITS
Figure 35 to Figure 40 define the test conditions used in the Specifications section.
A
W
B
NC
IW
DUT
VMS
NC = NO CONNECT
Figure 35. Resistor Position Nonlinearity Error
(Rheostat Operation: R-INL, R-DNL)
A
W
B
DUT
VMS
V+
V+ = VDD
1LSB = V+/2N
Figure 36. Potentiometer Divider Nonlinearity Error (INL, DNL)
+
DUT
0.1V
=
0.1V
IWB
IWB
W
B
NC = NO CONNECT
RW
A
NC
GND TO VDD
Figure 37. Wiper Resistance
A
W
B
VMS
~
VA
VDD
V+
V+ = VDD ± 10%
ΔVMS%
ΔVDD%
PSS (%/%) =
PSRR (dB) = 20 log
ΔVMS
ΔVDD
Figure 38. Power Supply Sensitivity (PSS, PSRR)
OFFSET
GND
A
B
DUT
W
+15V
VIN
VOUT
AD8652
–15V
2.5V
Figure 39. Gain and Phase vs. Frequency
DUT
ICM
W
B
VDD
GND
A
VDD
GND
GND
VDD
GND
VDD
Figure 40. Common-Mode Leakage Current


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