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AD5144BRUZ100 Datasheet(PDF) 22 Page - Analog Devices

Part No. AD5144BRUZ100
Description  The AD5124/AD5144/AD5144A potentiometers provide a nonvolatile solution for 128-/256-position adjustment applications, offering guaranteed low resistor tolerance errors of ±8% and up to ±6 mA current density in the Ax, Bx, and Wx pins.
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD5144BRUZ100 Datasheet(HTML) 22 Page - Analog Devices

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AD5124/AD5144/AD5144A
Data Sheet
Rev. A | Page 22 of 36
TEST CIRCUITS
Figure 38 to Figure 42 define the test conditions used in the Specifications section.
A
W
B
NC
IW
DUT
VMS
NC = NO CONNECT
Figure 38. Resistor Integral Nonlinearity Error (Rheostat Operation; R-INL, R-DNL)
A
W
B
DUT
VMS
V+
V+ = VDD
1LSB = V+/2N
Figure 39. Potentiometer Divider Nonlinearity Error (INL, DNL)
A
W
NC
B
DUT
IW = VDD/RNOMINAL
VMS1
VW
RW = VMS1/IW
NC = NO CONNECT
Figure 40. Wiper Resistance
A
W
B
VMS
V+ = VDD ±10%
PSRR (dB) = 20 LOG
VMS
∆VDD
( )
~
VA
VDD
∆VMS%
∆VDD%
PSS (%/%) =
V+
Figure 41. Power Supply Sensitivity and
Power Supply Rejection Ratio (PSS and PSRR)
+
DUT
CODE = 0x00
0.1V
VSS TO VDD
RSW =
0.1V
ISW
ISW
W
B
A = NC
Figure 42. Incremental On Resistance


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