ADS7830
SBAS302C –DECEMBER 2003–REVISED OCTOBER 2012
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TYPICAL CHARACTERISTICS (continued)
At TA = +25°C, VDD = +2.7V, VREF = External +2.5V, and fSAMPLE = 50kHz, unless otherwise noted.
CHANGE IN GAIN vs TEMPERATURE
INTERNAL REFERENCE vs TEMPERATURE
0.10
0.05
0
2.51875
2.51250
2.50625
2.50000
2.49375
2.48750
2.48125
-0.05
-0.10
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature (°C)
Figure 7.
Temperature (°C)
Figure 8.
POWER-DOWN SUPPLY CURRENT
vs TEMPERATURE
SUPPLY CURRENT vs TEMPERATURE
400
350
300
250
200
150
100
750
600
450
300
150
0
-150
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
Temperature (°C)
Temperature (°C)
Figure 10.
Figure 9.
SUPPLY CURRENT vs I2C BUS RATE
INTERNAL VREF vs TURN-ON TIME
100
80
60
40
20
0
300
250
200
150
100
50
No Cap
(37ms)
8-Bit Settling
1mF Cap
(930ms)
8-Bit Settling
0
0
200
400
600
800
Turn-On Time (ms)
Figure 12.
1000
1200
1400
10
100
1k
10k
I2C Bus Rate (KHz)
Figure 11.
10
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