EVAL-CEDZ Просмотр технического описания (PDF) - Analog Devices
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EVAL-CEDZ Datasheet PDF : 32 Pages
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8000
7000
7793
6000
5000
4000
3000
2000
1000
0
0
8189
6
8190
1117
8191
8192
CODE
1084
8193
0
8194
Figure 11. Histogram of Codes for 10k Samples at Gain of 2
3000
2500
2000
2486
2180
1861
1500
1000
1222
1081
498
381
500
132
2 22
82 16
0
8186
8188
8190
8192
8194
8196
8187
8189
8191
8193
8195
8197
CODE
Figure 12. Histogram of Codes for 10k Samples at Gain of 32
–65
AVCC = 5V
VDRIVE = 5V
fS = 1MSPS
–70 INTERNAL REFERENCE
–75
–80
GAIN = 32
GAIN = 2
–85
–90
10
110 210 310 410 510 610 710 810 910
ANALOG INPUT FREQUENCY (kHz)
Figure 13. THD vs. Analog Input Frequency up to 1 MHz at Gain of 2 and 32
AD7264
2.4968
2.4967
2.4966
2.4965
2.4964
2.4963
2.4962
AVCC = 5V
VDRIVE = 3V
fS = 1MSPS
INTERNAL REFERENCE
2.4961
0 20 40 60 80 100 120 140 160 180 200
CURRENT LOAD (µA)
Figure 14. VREF vs. Reference Output Current Drive
1900
1800
1700
1600
1500
1400
1300
1200
1100
1000
900
800
700
600
AVCC = 5V
VDRIVE = 5V
fS = 1MSPS
INTERNAL REFERENCE
123468
12 16 24 32 48 64 96 128
GAIN
Figure 15. 3 dB Bandwidth vs. Gain
80
75
70
65
60
55
50
45
AVCC = 5V
40
VDRIVE = 5V
fS = 1MSPS
35
INTERNAL REFERENCE
fIN = 100kHz
30
1 2 3 4 6 8 12 16 24 32 48 64 96 128
PGA GAIN
Figure 16. SNR vs. PGA Gain for an Analog Input Tone of 100 kHz
Rev. A | Page 11 of 32
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