EVAL-AD5254EBZ2 View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
'EVAL-AD5254EBZ2' PDF : 32 Pages View PDF
AD5253/AD5254
0
0xFF
–6
0x80
–12
0x40
–18
0x20
–24
0x10
–30
0x08
–36
0x04
–42
0x02
–48
0x01
–54
0x00
–60
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 15. Gain vs. Frequency vs. Code, RAB = 50 kΩ, TA = 25°C
0
0x80
0xFF
–6
0x40
–12
0x20
–18
0x10
–24
0x08
–30
0x04
–36
0x02
–42
0x01
–48
–54
0x00
–60
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 16. Gain vs. Frequency vs. Code, RAB = 100 kΩ, TA = 25°C
100
80
60
40
20
0
–20
–40
–60
–80
–100
0
100kΩ
1kΩ
10kΩ
VDD = 5.5V
50kΩ
32
64
96 128 160 192 224 256
CODE (Decimal)
Figure 17. ΔRAB vs. Code, TA = 25°C
1.2
TA = 25°C
1.0
0.8
VDD = 5.5V
0.6
0.4
0.2
VDD = 2.7V
0
1
10
100
1k
10k 100k
1M
10M
CLOCK FREQUENCY (Hz)
Figure 18. Supply Current vs. Digital Input Clock Frequency
CLK
VDD = 5V
DIGITAL FEEDTHROUGH
VW
MIDSCALE TRANSITION
7FH ≥ 80H
400ns/DIV
Figure 19. Clock Feedthrough and Midscale Transition Glitch
MIDSCALE
PRESET
MIDSCALE
PRESET
RESTORE RDAC0
SETTING TO 0xFF
RESTORE RDAC3
SETTING TO 0xFF
VDD
(NO DE-
COUPLING
CAPS)
VWB0
(0xFF
STORED
IN EEMEM)
VDD = VA0 = VA3 = 3.3V
GND = VB0 = VB3
VWB3
(0xFF
STORED
IN EEMEM)
Figure 20. tEEMEM_RESTORE of RDAC0 and RDAC3
Rev. B | Page 12 of 32
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