EVAL-AD7142-1EBZ(RevA) 查看數據表（PDF） - Analog Devices
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EVAL-AD7142-1EBZ Datasheet PDF : 73 Pages
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AD7142
TYPICAL PERFORMANCE CHARACTERISTICS
1000
980
DEVICE 1
960
940
DEVICE 3
920 DEVICE 2
900
880
860
840
820
2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6
VCC (V)
Figure 8. Supply Current vs. Supply Voltage
(VCC = AVCC + DVCC, ICC = AICC + DICC)
180
LP_CONV_DELAY = 200ms
160
140
120
100
LP_CONV_DELAY = 400ms
80
LP_CONV_DELAY = 600ms
60
LP_CONV_DELAY = 800ms
40
2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6
VCC (V)
Figure 9. Low Power Supply Current vs. Supply Voltage,
Decimation Rate = 256 (VCC = AVCC + DVCC, ICC = AICC + DICC)
120
100
LP_CONV_DELAY = 200ms
80
60
LP_CONV_DELAY = 400ms
LP_CONV_DELAY = 600ms
40
LP_CONV_DELAY = 800ms
20
2.7 2.8 2.9 3.0 3.10 3.2 3.3 3.4 3.5 3.6
VCC (V)
Figure 10. Low Power Supply Current vs. Supply Voltage
Decimation Rate = 128 (VCC = AVCC + DVCC, ICC = AICC + DICC)
2.45
2.30
DEVICE 2
2.15
2.00
DEVICE 1
1.85
DEVICE 3
1.70
1.55
1.40
2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6
VCC (V)
Figure 11. Shutdown Supply Current vs. Supply Voltage
(VCC = AVCC + DVCC, ICC = AICC + DICC)
1.10
DEVICE 1
1.05
1.00
0.95
DEVICE 3
0.90
DEVICE 2
0.85
0.80
0
50 100 150 200 250 300 350 400 450 500
CAPACITANCE LOAD ON SOURCE (pF)
Figure 12. Supply Current vs. Capacitive Load on SRC (ICC = AICC + DICC)
16015
16010
DEVICE 1
16005
16000
DEVICE 2
15995
15990
DEVICE 3
15985
15980
0
50 100 150 200 250 300 350 400 450 500
CAPACITANCE LOAD ON SOURCE (pF)
Figure 13. Output Code vs. Capacitive Load on SRC
Rev. A | Page 10 of 72
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