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AD7264BSTZ 数据表(PDF) 11 Page - Analog Devices

部件名 AD7264BSTZ
功能描述  1 MSPS, 14-Bit, Simultaneous Sampling SAR ADC with PGA and Four Comparators
PDF  32 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD7264BSTZ 数据表(HTML) 11 Page - Analog Devices

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AD7264
Rev. A | Page 11 of 32
CODE
0
1000
2000
3000
4000
5000
6000
7000
8000
8189
8190
8191
8192
8193
8194
1117
6
0
7793
1084
0
Figure 11. Histogram of Codes for 10k Samples at Gain of 2
CODE
0
500
1000
1500
2000
2500
3000
8186
8187
8188
8189
8190
8191
8192
8193
8194
8195
8196
8197
2486
2180
1222
498
132
22
2
1081
381
82
16
1861
Figure 12. Histogram of Codes for 10k Samples at Gain of 32
ANALOG INPUT FREQUENCY (kHz)
–90
–85
–80
–75
–70
–65
10
110
210
310
410
510
610
710
810
910
AVCC = 5V
VDRIVE = 5V
fS = 1MSPS
INTERNAL REFERENCE
GAIN = 2
GAIN = 32
Figure 13. THD vs. Analog Input Frequency up to 1 MHz at Gain of 2 and 32
2.4961
2.4962
2.4963
2.4964
2.4965
2.4966
2.4967
2.4968
0
20
40
60
80
100
120
140
160
180
200
AVCC = 5V
VDRIVE = 3V
fS = 1MSPS
INTERNAL REFERENCE
CURRENT LOAD (µA)
Figure 14. VREF vs. Reference Output Current Drive
600
1900
1800
GAIN
1
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
2
3
4
6
8
12 162432 486496 128
AVCC = 5V
VDRIVE = 5V
fS = 1MSPS
INTERNAL REFERENCE
Figure 15. 3 dB Bandwidth vs. Gain
30
35
40
45
50
55
60
65
70
75
80
1234
68
12 16 24 32 48 64 96 128
PGA GAIN
AVCC = 5V
VDRIVE = 5V
fS = 1MSPS
INTERNAL REFERENCE
fIN = 100kHz
Figure 16. SNR vs. PGA Gain for an Analog Input Tone of 100 kHz



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