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AD5280 Datasheet(PDF) 10 Page - Analog Devices

Part # AD5280
Description  Single/Dual,15 V/5 V,256-Position I2C-Compatible Digital Potentiometer
PDF  28 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD5280 Datasheet(HTML) 10 Page - Analog Devices

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AD5280/AD5282
Rev. C | Page 10 of
28
–54
FREQUENCY (Hz)
–60
0
10k
100k
1M
0
–30
–24
–12
–18
–6
–36
–48
–42
T = 25°C
FREQUENCY (MHz)
80
40
60
20
0
100
1000
10k
100k
1M
R = 20kΩ
310kHz
CODE = 80H, VA = VDD, VB = 0V
A
VDD/VSS = ±5V
VA = 50mV rms
R = 50kΩ
150kHz
R = 200kΩ
35kHz
–PSRR @ VDD/VSS = ±5V
DC ±10% p-p AC
+PSRR @ VDD/VSS = ±5V
DC ±10% p-p AC
Figure 24.
−3 dB Bandwidth
FREQUENCY (Hz)
–6dB
100
1k
10k
100k
TA = 25°C
VDD/VSS = ±5V
R = 200kΩ
R = 20kΩ
R = 50kΩ
Figure 25. Normalized Gain Flatness vs. Frequency
FREQUENCY (Hz)
500
300
400
200
100
0
10k
100k
1M
10M
TA = 25°C
VDD/VSS = ±5V
CODE = 55H
CODE = 55H
Figure 26. VLOGIC Supply Current vs. Frequency
Figure 27. PSRR vs. Frequency
A2
1.2V
852.0µs
2.04µs
Figure 28. Midscale Glitch Energy Code 0x80 to 0x7F
CH1 5.00V
CH2 5.00V
M100ns
A CH1
0V
VW
CS
2
1
+5V
–5V
T
Figure 29. Large Signal Settling Time



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