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AD7761BSTZ Datasheet(PDF) 22 Page - Analog Devices

Part # AD7761BSTZ
Description  8-Channel, 16-Bit, Simultaneous Sampling ADC with Power Scaling, 110.8 kHz BW
PDF  76 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7761BSTZ Datasheet(HTML) 22 Page - Analog Devices

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Data Sheet
AD7761
Rev. A | Page 21 of 75
–200
–180
–160
–140
–120
–100
–80
–60
–40
–20
0
5
5000
500
50
FREQUENCY (Hz)
SNR = 97.9dB
THD = –119.9dB
Figure 17. FFT One-Shot Mode, Sinc5 Filter, Median Mode,
Decimation = ×64, −0.5 dBFS, SYNC_IN Frequency = MCLK/4000
–200
–180
–160
–140
–120
–100
–80
–60
–40
–20
0
100
100k
10k
1k
FREQUENCY (Hz)
SECOND-ORDER IMD = –125.2dB
THIRD-ORDER IMD = –120.8 dB
Figure 18. IMD with Input Signals at 9.7 kHz and 10.3 kHz
–180
–160
–140
–120
–100
–80
–60
–40
–20
0
0
1
2
3
4
5
6
7
CHANNEL
fIN = 3.15kHz
INTERFERER (1kHz) ON ALL OTHER CHANNELS
Figure 19. Crosstalk
–160
–140
–120
–100
–80
–60
–40
–20
0
0
5
10
15
20
25
30
35
40
MCLK FREQUENCY (MHz)
90
91
92
93
94
95
96
97
98
99
fIN = 1kHz
SNR, FAST
THD, FAST
THD + N, FAST
Figure 20. SNR, THD, and THD + N vs. MCLK Frequency
–140
–120
–100
–80
–60
–40
–20
0
10
100
1k
INPUT FREQUENCY (Hz)
10k
100k
FAST
MEDIAN
FOCUS
Figure 21. THD vs. Input Frequency, Three Power Modes, Wideband Filter
–140
–120
–100
–80
–60
–40
–20
0
–40
–30
–20
–10
0
INPUT AMPLITUDE (dBFS)
THD + N
THD
Figure 22. THD and THD + N vs. Input Amplitude, Wideband Filter, Fast Mode



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