EVAL-AD5254EBZ Analog Devices Inc, EVAL-AD5254EBZ Datasheet - Page 12

• Manufacturer Part Number: EVAL-AD5254EBZ
• Description: Evaluation Board
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD5254EBZ

• Main Purpose: Digital Potentiometer
• Utilized Ic / Part: AD5245
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / RoHS Status: Lead free / RoHS 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