EVAL-AD5270SDZ Analog Devices Inc, EVAL-AD5270SDZ Datasheet - Page 14

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EVAL-AD5270SDZ

Manufacturer Part Number
EVAL-AD5270SDZ
Description
EVALUATION BOARD
Manufacturer
Analog Devices Inc
Datasheet

Specifications of EVAL-AD5270SDZ

Main Purpose
Digital Potentiometer
Embedded
No
Utilized Ic / Part
AD5270
Primary Attributes
1 Channel, 1024 Position
Secondary Attributes
2.7 ~ 5.5 V, 5 ppm/°C, SPI Interfaces
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
AD5270/AD5271
50
45
40
35
30
25
20
15
10
5
0
–10
–20
–30
–40
–50
–60
–10
–20
–30
–40
–50
–60
0
0
0
0
1k
1k
0x200 (0x80)
0x100 (0x40)
0x080 (0x20)
0x040 (0x10)
0x020 (0x08)
0x010 (0x04)
0x008 (0x02)
0x004 (0x01)
0x002
0x001
0x200 (0x80)
0x100 (0x40)
0x080 (0x20)
0x040 (0x10)
0x020 (0x08)
0x010 (0x04)
0x008 (0x02)
0x004 (0x01)
0x002
0x001
Figure 26. 20 kΩ Gain vs. Code vs. Frequency
Figure 27. 50 kΩ Gain vs. Code vs. Frequency
Figure 25. Tempco ΔR
256
64
10k
10k
CODE (Decimal)
FREQUENCY (Hz)
FREQUENCY (Hz)
512
128
100k
100k
WA
/ΔT vs. Code
768
192
V
DD
AD5270 (AD5271)
AD5270 (AD5271)
/V
1M
1M
SS
= 5V/0V
20kΩ
50kΩ
100kΩ
1023
255
10M
10M
AD5270
AD5271
Rev. E | Page 14 of 24
7
6
5
4
3
2
1
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
0
–10
–20
–30
–40
–50
–60
–70
0
0
100
1k
V
CODE = HALF SCALE
0x200 (0x80)
0x100 (0x40)
0x080 (0x20)
0x040 (0x10)
0x020 (0x08)
0x010 (0x04)
0x008 (0x02)
0x004 (0x01)
0x002
0x001
DD
Figure 28. Theoretical Maximum Current vs. Code
Figure 29. 100 kΩ Gain vs. Code vs. Frequency
/V
SS
50kΩ
100kΩ
20kΩ
= 5V/0V
256
64
10k
Figure 30. PSRR vs. Frequency
CODE (Decimal)
1k
FREQUENCY (Hz)
FREQUENCY (Hz)
512
128
100k
10k
768
192
V
DD
AD5270 (AD5271)
/V
1M
SS
= 5V/0V
20kΩ
50kΩ
100kΩ
1023
255
100k
10M
AD5270
AD5271

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