AD7877(RevA) 查看數據表（PDF） - Analog Devices
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AD7877 Datasheet PDF : 44 Pages
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AD7877
3145
3135
3125
3115
3105
3095
3085
3075
3065
3055
3045
–50
–30
–10
10
30
50
70
90
TEMPERATURE (°C)
Figure 17. ADC Code vs. Temperature (2.7 V Supply)
1183
1182
1181
1180
1179
1178
1177
1176
2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6
VCC (V)
Figure 18. Temp1 vs. VCC
982
981
980
979
978
977
976
975
2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6
VCC (V)
Figure 19. Temp0 vs. VCC
6
NO CAP
0.711µs SETTLING TIME
3
100nF CAP
54.64µs SETTLING TIME
0
–20
0
20
40
60
80
TURN-ON TIME (µs)
100
120
Figure 20. Internal VREF vs. Turn-On Time
10
–10
SNR 70.25dB
THD 78.11dB
–30
–50
–70
–90
–110
–130
–150
0
10k
20k
30k
40k
FREQUENCY
Figure 21. Typical FFT Plot for the Auxiliary Channels of the AD7877
at 90 kHz Sample Rate and 10 kHz Input Frequency
3.50
3.25
3.00
2.75
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0
0
DAC O/P SOURCE ABILITY
DAC O/P SINK ABILITY
1 2 3 4 5 6 7 8 9 10
SOURCE/SINK CURRENT (mA)
Figure 22. DAC Source and Sink Current Capability
Rev. A | Page 12 of 44
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