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AD5291 Datasheet(PDF) 18 Page - Analog Devices

Part # AD5291
Description  256-/1024-Position, Digital Potentiometers
PDF  30 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD5291 Datasheet(HTML) 18 Page - Analog Devices

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AD5291/AD5292
Data Sheet
0
–50
–45
–40
–35
–30
–25
–20
–15
–10
–5
1M
100k
10k
1k
100
10
FREQUENCY (Hz)
AD5292 (AD5291)
0x200 (0x80)
0x100 (0x40)
0x080 (0x20)
0x040 (0x10)
0x020 ( 0x08)
0x010 (0x04)
0x008 (0x02)
0x004 (0x01)
0x002
0x001
Figure 42. 20 kΩ Gain vs. Frequency vs. Code
–50
–40
–30
–10
0
10
1M
100k
10k
1k
100
FREQUENCY (Hz)
0x200 (0x80)
0x080 (0x20)
0x020 ( 0x08)
0x010 (0x04)
0x004 (0x01)
0x002
0x001
AD5292 (AD5291)
–20
–60
0x040 (0x10)
0x008 (0x02)
0x100 (0x40)
Figure 43. 50 kΩ Gain vs. Frequency vs. Code
0
–120
–105
–90
–75
–60
–45
–30
–15
FREQUENCY (Hz)
100
1k
10k
100k
VDD/VSS = ±15V
CODE = HALF SCALE
VIN = 1V rms
Noise BW = 22kHz
50kΩ
20kΩ
100kΩ
Figure 44. THD + Noise vs. Frequency
–65
–60
–50
–45
–40
–35
–30
–25
–15
–10
–5
0
1
1M
100k
10k
1k
100
10
FREQUENCY (Hz)
0x200 (0x80)
0x100 (0x40)
0x080 (0x20)
0x040 (0x10)
0x020 ( 0x08)
0x010 (0x04)
0x008 (0x02)
0x004 (0x01)
0x002
0x001
AD5292 (AD5291)
–20
–55
–67.5
Figure 45. 100 kΩ Gain vs. Frequency vs. Code
–70
–60
–50
–40
–30
–20
–10
0
100
1k
10k
FREQUENCY (Hz)
100k
1M
100kΩ
20kΩ
50kΩ
Figure 46. Power Supply Rejection Ratio vs. Frequency
–140
–120
–100
–80
–60
–40
–20
0
0.001
0.01
0.1
1
10
AMPLITUDE (V rms)
VDD/VSS = ±15V,
CODE = HALF SCALE
fIN = 1kHz
NOISE BW = 22kHz
50kΩ
20kΩ
100kΩ
Figure 47. THD + Noise vs. Amplitude
Rev. E | Page 18 of 30



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