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AD4021BCPZ-R2 数据表(PDF) 12 Page - Analog Devices

部件名 AD4021BCPZ-R2
功能描述  20-Bit, 1.8 MSPS/1 MSPS/500 kSPS, Easy Drive, Differential SAR ADCs
PDF  39 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD4021BCPZ-R2 数据表(HTML) 12 Page - Analog Devices

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AD4020/AD4021/AD4022
Data Sheet
Rev. B | Page 12 of 39
0
50000
100000
150000
200000
250000
524210
524220
524230
524240
524250
524260
524270
ADC CODE
2.5V CODE CENTER
5V CODE CENTER
Figure 11. Histogram of a DC Input at Code Center, VREF = 2.5 V and VREF = 5 V
0
–60
–160
–120
–20
–100
–80
–140
–40
–180
100
100k
10k
1k
900k
FREQUENCY (Hz)
VREF = 5V
SNR = 100.33dB
THD = –123.99dB
SINAD = 100.31dB
Figure 12. 1 kHz, −0.5 dBFS Input Tone Fast Fourier Transform (FFT),
VREF = 5 V
0
–60
–160
–120
–20
–100
–80
–140
–40
–180
1k
100k
10k
900k
FREQUENCY (Hz)
VREF = 5V
SNR = 98.37dB
THD = –98.52dB
SINAD = 95.58dB
Figure 13. 100 kHz, −0.5 dBFS Input Tone FFT
0
50000
100000
150000
200000
250000
524205
524215
524225
524235
524245
524255
524265
ADC CODE
2.5V CODE TRANSITION
5V CODE TRANSITION
Figure 14. Histogram of a DC Input at Code Transition, VREF = 2.5 V and VREF = 5 V
0
–60
–160
–120
–20
–100
–80
–140
–40
–180
100
100k
10k
1k
900k
FREQUENCY (Hz)
VREF = 2.5V
SNR = 95.01dB
THD = –118.60dB
SINAD = 94.99dB
Figure 15. 1 kHz, −0.5 dBFS Input Tone FFT, VREF = 2.5 V
0
–60
–160
–120
–20
–100
–80
–140
–40
–180
1k
100k
10k
900k
FREQUENCY (Hz)
VREF = 5V
SNR = 91.22dB
THD = –91.97dB
SINAD = 89.15dB
Figure 16. 400 kHz, −0.5 dBFS Input Tone FFT



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