AD5122A 데이터 시트보기 (PDF) - Analog Devices
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AD5122A Datasheet PDF : 32 Pages
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AD5122A/AD5142A
0
0x80, (0x40)
–10 0x40, (0x20)
0x20, (0x10)
–20
0x10, (0x08)
0x8, (0x04)
–30
0x4, (0x02)
0x2, (0x01)
–40 0x1, (0x00)
0x00
–50
AD5142A (AD5122A)
–60
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 18. 10 kΩ Gain vs. Frequency and Code
–40
VDD/VSS = ±2.5V
VA = 1V rms
–50
VB = GND
CODE = HALF SCALE
NOISE FILTER = 22kHz
–60
10kΩ
100kΩ
–70
–80
–90
–100
20
200
2k
20k
200k
FREQUENCY (Hz)
Figure 19. Total Harmonic Distortion Plus Noise (THD + N) vs. Frequency
20
VDD/VSS = ±2.5V
RAB = 10kΩ
0
–20
–40
–60
–80
–100
10
QUARTER SCALE
MIDSCALE
FULL-SCALE
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 20. Normalized Phase Flatness vs. Frequency, RAB = 10 kΩ
Data Sheet
10
0
0x80, (0x40)
–10 0x40, (0x20)
0x20, (0x10)
–20 0x10, (0x08)
0x8, (0x04)
–30 0x4, (0x02)
0x2, (0x01)
–40 0x1, (0x00)
–50
0x00
–60
–70
–80
AD5142A (AD5122A)
–90
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 21. 100 kΩ Gain vs. Frequency and Code
0
10kΩ
100kΩ
–10
–20
–30
–40
–50
–60
–70
VDD/VSS = ±2.5V
–80
fIN = 1kHz
CODE = HALF SCALE
NOISE FILTER = 22kHz
–90
0.001
0.01
0.1
1
VOLTAGE (V rms)
Figure 22. Total Harmonic Distortion Plus Noise (THD + N) vs. Amplitude
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
10
QUARTER SCALE
MIDSCALE
FULL-SCALE
100
1k
VDD/VSS = ±2.5V
RAB = 100kΩ
10k
100k
1M
FREQUENCY (Hz)
Figure 23. Normalized Phase Flatness vs. Frequency, RAB = 100 kΩ
Rev. A | Page 16 of 32
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