AD5254EVAL Analog Devices Inc, AD5254EVAL Datasheet - Page 12
AD5254EVAL
Manufacturer Part Number
AD5254EVAL
Description
BOARD EVAL FOR AD5254
Manufacturer
Analog Devices Inc
Type
Digital Potentiometerr
Datasheet
1.AD5254BRUZ100.pdf
(32 pages)
Specifications of AD5254EVAL
Contents
Evaluation Board
For Use With/related Products
AD5254
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
AD5253/AD5254
–100
100
–20
–40
–60
–80
80
60
40
20
–12
–18
–24
–30
–36
–42
–48
–54
–60
0
–6
–12
–18
–24
–30
–36
–42
–48
–54
–60
Figure 16. Gain vs. Frequency vs. Code, R
Figure 15. Gain vs. Frequency vs. Code, R
–6
0
0
0
10
10
32
100
100
Figure 17. ΔR
64
100k Ω
1k Ω
1k
1k
96
CODE (Decimal)
0x80
0x10
0x40
0x20
0x08
FREQUENCY (Hz)
0x04
0x02
0x01
0x80
0x40
0x10
0x04
0x02
0x01
FREQUENCY (Hz)
0x20
0x08
AB
128
vs. Code, T
10k
10k
10k Ω
160
100k
A
100k
AB
AB
50k Ω
= 25°C
= 100 kΩ, T
= 50 kΩ, T
192
V
0xFF
DD
1M
0xFF
224
1M
= 5.5V
0x00
A
0x00
A
= 25°C
= 25°C
256
10M
10M
Rev. B | Page 12 of 32
1.2
1.0
0.8
0.6
0.4
0.2
0
DIGITAL FEEDTHROUGH
Figure 19. Clock Feedthrough and Midscale Transition Glitch
1
Figure 18. Supply Current vs. Digital Input Clock Frequency
Figure 20. t
10
MIDSCALE
PRESET
MIDSCALE
PRESET
100
EEMEM_RESTORE
CLOCK FREQUENCY (Hz)
400ns/DIV
1k
RESTORE RDAC0
SETTING TO 0xFF
MIDSCALE TRANSITION
V
GND = VB0 = VB3
SETTING TO 0xFF
RESTORE RDAC3
DD
of RDAC0 and RDAC3
10k
= VA0 = VA3 = 3.3V
7FH ≥ 80H
V
T
DD
A
100k
V
= 25°C
= 5.5V
DD
= 2.7V
1M
CLK
V
V
(NO DE-
COUPLING
CAPS)
V
(0xFF
STORED
IN EEMEM)
V
(0xFF
STORED
IN EEMEM)
V
W
DD
DD
WB0
WB3
10M
= 5V