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AD5142ABCPZ10-RL7 Datasheet(PDF) 16 Page - Analog Devices

Part # AD5142ABCPZ10-RL7
Description  Dual Channel, 128-/256-Position, I2C, Nonvolatile Digital Potentiometer
PDF  32 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD5142ABCPZ10-RL7 Datasheet(HTML) 16 Page - Analog Devices

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AD5122A/AD5142A
Data Sheet
Rev. B | Page 16 of 32
0
0.2
0.4
0.6
0.8
1.0
1.2
0123
45
DIGITAL INPUT VOLTAGE (V)
VLOGIC = 1.8V
VLOGIC = 2.3V
VLOGIC = 3.3V
VLOGIC = 5V
VLOGIC = 5.5V
Figure 18. ILOGIC Current vs. Digital Input Voltage
–60
–50
–40
–30
–20
–10
0
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
AD5142A (AD5122A)
0x80, (0x40)
0x40, (0x20)
0x20, (0x10)
0x10, (0x08)
0x8, (0x04)
0x4, (0x02)
0x2, (0x01)
0x1, (0x00)
0x00
Figure 19. 10 kΩ Gain vs. Frequency and Code
–100
–90
–80
–70
–60
–50
–40
20
200
2k
20k
200k
FREQUENCY (Hz)
10kΩ
100kΩ
VDD/VSS =±2.5V
VA =1Vrms
VB = GND
CODE = HALF SCALE
NOISE FILTER = 22kHz
Figure 20. Total Harmonic Distortion Plus Noise (THD + N) vs. Frequency
–100
–80
–60
–40
–20
0
20
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
QUARTER SCALE
MIDSCALE
FULL-SCALE
VDD/VSS = ±2.5V
RAB = 10kΩ
Figure 21. Normalized Phase Flatness vs. Frequency, RAB = 10 kΩ
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
10
FREQUENCY (Hz)
10
100
1k
10k
100k
1M
10M
0x80, (0x40)
0x40, (0x20)
0x20, (0x10)
0x10, (0x08)
0x8, (0x04)
0x4, (0x02)
0x2, (0x01)
0x1, (0x00)
0x00
AD5142A (AD5122A)
Figure 22. 100 kΩ Gain vs. Frequency and Code
10kΩ
100kΩ
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
0.001
0.01
0.1
1
VOLTAGE(Vrms)
VDD/VSS =±2.5V
fIN =1kHz
CODE = HALF SCALE
NOISE FILTER = 22kHz
Figure 23. Total Harmonic Distortion Plus Noise (THD + N) vs. Amplitude



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