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AD5122 Datasheet(PDF) 16 Page - Analog Devices

Part # AD5122
Description  The AD5122/AD5142 potentiometers provides a nonvolatile solution for 128-/256-position adjustment applications, offering guaranteed low resistor tolerance errors of 짹8% and up to 짹6 mA current density in the Ax, Bx, and Wx pins.
PDF  32 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD5122 Datasheet(HTML) 16 Page - Analog Devices

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AD5122/AD5142
Data Sheet
Rev. 0 | Page 16 of 32
–60
–50
–40
–30
–20
–10
0
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
AD5142 (AD5122)
0x80 (0x40)
0x40 (0x20)
0x20 (0x10)
0x10 (0x08)
0x8 (0x04)
0x4 (0x02)
0x2 (0x01)
0x1 (0x00)
0x00
Figure 20. 10 kΩ Gain vs. Frequency vs. Code
–100
–90
–80
–70
–60
–50
–40
20
200
2k
20k
200k
FREQUENCY (Hz)
10k
Ω
100k
Ω
VDD/VSS = ±2.5V
VA = 1V rms
VB = GND
CODE = HALF SCALE
NOISE FILTER = 22kHz
Figure 21. 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 22. 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
AD5142 (AD5122)
Figure 23. 100 kΩ Gain vs. Frequency vs. Code
10k
Ω
100k
Ω
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
0.001
0.01
0.1
1
VOLTAGE (V rms)
VDD/VSS = ±2.5V
fIN = 1kHz
CODE = HALF SCALE
NOISE FILTER = 22kHz
Figure 24. Total Harmonic Distortion Plus Noise (THD + N) vs. Amplitude
–80
–90
–70
–60
–50
–40
–30
–20
–10
0
10
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
QUARTER SCALE
MIDSCALE
FULL-SCALE
VDD/VSS = ±2.5V
RAB = 100kΩ
Figure 25. Normalized Phase Flatness vs. Frequency, RAB = 100 kΩ



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