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AD5271 Datasheet(PDF) 14 Page - Analog Devices

Part # AD5271
Description  1024-/256-Position, 1% Resistor Tolerance Error, SPI Interface and 50-TP Memory Digital Rheostat
PDF  24 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD5271 Datasheet(HTML) 14 Page - Analog Devices

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AD5270/AD5271
Data Sheet
Rev. F | Page 14 of 24
0
5
10
15
20
25
30
35
40
45
50
0
256
512
768
1023
0
64
128
192
255
AD5270
AD5271
CODE (Decimal)
20kΩ
50kΩ
100kΩ
VDD/VSS= 5V/0V
Figure 25. Tempco ΔRWA/ΔT vs. Code
–60
–50
–40
–10
–30
–20
0
1k
10k
100k
1M
10M
FREQUENCY (Hz)
0x200 (0x80)
0x100 (0x40)
0x080 (0x20)
0x040 (0x10)
0x020 (0x08)
0x010 (0x04)
0x008 (0x02)
0x004 (0x01)
0x002
0x001
AD5270 (AD5271)
Figure 26. 20 kΩ Gain vs. Code vs. Frequency
–60
–50
–40
–10
–30
–20
0
1k
10k
100k
1M
10M
FREQUENCY (Hz)
0x200 (0x80)
0x100 (0x40)
0x080 (0x20)
0x040 (0x10)
0x020 (0x08)
0x010 (0x04)
0x008 (0x02)
0x004 (0x01)
0x002
0x001
AD5270 (AD5271)
Figure 27. 50 kΩ Gain vs. Code vs. Frequency
0
1
2
3
4
5
6
7
CODE (Decimal)
0
256
512
768
1023
0
64
128
192
255
AD5270
AD5271
VDD/VSS = 5V/0V
20kΩ
50kΩ
100kΩ
Figure 28. Theoretical Maximum Current vs. Code
–60
–70
–50
–40
–10
–30
–20
0
1k
10k
100k
1M
10M
FREQUENCY (Hz)
0x200 (0x80)
0x100 (0x40)
0x080 (0x20)
0x040 (0x10)
0x020 (0x08)
0x010 (0x04)
0x008 (0x02)
0x004 (0x01)
0x002
0x001
AD5270 (AD5271)
Figure 29. 100 kΩ Gain vs. Code vs. Frequency
FREQUENCY (Hz)
100
1k
10k
100k
VDD /VSS= 5V/0V
CODE = HALF SCALE
0
–90
–80
–70
–60
–50
–40
–30
–20
–10
50kΩ
100kΩ
20kΩ
Figure 30. PSRR vs. Frequency



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