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AD5245BRJ50-RL7 データシート(PDF) 10 Page - Analog Devices

部品番号 AD5245BRJ50-RL7
部品情報  256-Position I2C Compatible Digital Potentiometer
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
Logo AD - Analog Devices

AD5245BRJ50-RL7 データシート(HTML) 10 Page - Analog Devices

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AD5245
Rev. 0 | Page 10 of 16
TEST CIRCUITS
Figure 27 to Figure 35 illustrate the test circuits that define the
test conditions used in the product specification tables.
VMS
A
W
B
DUT
V+ = VDD
1LSB = V+/2N
V+
Figure 27. Test Circuit for Potentiometer Divider Nonlinearity Error (INL, DNL)
NO CONNECT
IW
VMS
A
W
B
DUT
Figure 28. Test Circuit for Resistor Position Nonlinearity Error
(Rheostat Operation; R-INL, R-DNL)
VMS1
IW = VDD/RNOMINAL
VMS2
VW
RW = [VMS1 – VMS2]/IW
A
W
B
DUT
Figure 29. Test Circuit for Wiper Resistance
∆V
∆V
∆V
∆VMS%
DD%
PSS (%/%) =
V+= VDD 10%
PSRR (dB) = 20 LOG
MS
DD
(
)
VDD
VA
VMS
A
W
B
V+
Figure 30. Test Circuit for Power Supply Sensitivity (PSS, PSSR)
OP279
W
5V
B
VOUT
OFFSET
GND
OFFSET
BIAS
A
DUT
VIN
Figure 31. Test Circuit for Inverting Gain
B
A
VIN
OP279
W
5V
VOUT
OFFSET
GND
OFFSET
BIAS
DUT
Figure 32. Test Circuit for Noninverting Gain
+15V
–15V
W
A
2.5V
B
VOUT
OFFSET
GND
DUT
AD8610
VIN
Figure 33. Test Circuit for Gain vs. Frequency
W
B
VSS TO VDD
DUT
ISW
CODE = 0x00
RSW =
0.1V
ISW
0.1V
Figure 34. Test Circuit for Incremental ON Resistance
W
B
VCM
ICM
A
NC
GND
NC
VSS
VDD DUT
NC = NO CONNECT
Figure 35. Test Circuit for Common-Mode Leakage current


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