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AD7276ARMZ 数据表(PDF) 13 Page - Analog Devices

部件名 AD7276ARMZ
功能描述  3 MSPS, 12-/10-/8-Bit ADCs in 6-Lead TSOT
PDF  28 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD7276ARMZ 数据表(HTML) 13 Page - Analog Devices

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AD7276/AD7277/AD7278
Rev. C | Page 13 of 28
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, unless otherwise noted.
FREQUENCY (kHz)
0
100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400
–120
–20
–100
–80
–60
–40
1500
16,384 POINT FFT
FSAMPLE =3MSPS
FIN =1MHz
SINAD = 71.2dB
THD = –80.9dB
SFDR = –82.4dB
VDD =3V
Figure 10. AD7276 Dynamic Performance at 3 MSPS, Input Tone = 1 MHz
FREQUENCY (kHz)
0
100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400
–110
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
1500
16,384 POINT FFT
FSAMPLE = 3MSPS
FIN =1MHz
SINAD = 61.6dB
THD = –80.2dB
SFDR = –83.4dB
VDD =3V
Figure 11. AD7277 Dynamic Performance at 3 MSPS, Input Tone = 1 MHz
INPUT FREQUENCY (kHz)
100
67.5
72.5
1500
1000
72.0
71.5
71.0
70.5
70.0
69.5
69.0
68.5
68.0
VDD = 2.35V
VDD =3V
VDD =3.6V
Figure 12. AD7276 SINAD vs. Analog Input Frequency at 3 MSPS
for Various Supply Voltages, SCLK Frequency = 48 MHz
INPUT FREQUENCY (kHz)
100
69.0
73.0
1500
1000
VDD = 2.35V
72.5
72.0
71.5
71.0
70.5
70.0
69.5
VDD =3.6V
VDD =3V
Figure 13. AD7276 SNR vs. Analog Input Frequency at 3 MSPS
for Various Supply Voltages, SCLK Frequency = 48 MHz
CODE
2046
0
30,000
25,000
20,000
15,000
10,000
5,000
2050
2049
2048
2047
30,000
CODES
Figure 14. Histogram of Codes for 30,000 Samples
INPUT FREQUENCY (kHz)
100
–90
–72
1500
1000
–74
–76
–78
–80
–82
–84
–86
–88
VDD =3.6V
VDD = 2.35V
VDD =3V
Figure 15. THD vs. Analog Input Frequency at 3 MSPS
for Various Supply Voltages, SCLK Frequency = 48 MHz



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