Datasheet

ADS7828
8
SBAS181C
www.ti.com
TYPICAL CHARACTERISTICS (Cont.)
T
A
= +25°C, V
DD
= +2.7V, V
REF
= External +2.5V, f
SAMPLE
= 50kHz, unless otherwise noted.
1.5
1.0
0.5
0.0
–0.5
–1.0
–1.5
Delta from 25°C (LSB)
–50 –25 0 25 50 75 100
Temperature (°C)
CHANGE IN GAIN vs TEMPERATURE
2.51875
2.51250
2.50625
2.50000
2.49375
2.48750
2.48125
Internal Reference (V)
–50 –25 0 25 50 75 100
Temperature (°C)
INTERNAL REFERENCE vs TEMPERATURE
750
600
450
300
150
0
–150
Supply Current (nA)
–50 –25 0 25 50 75 100 125
Temperature (°C)
POWER-DOWN SUPPLY CURRENT
vs TEMPERATURE
400
350
300
250
200
150
100
Supply Current (µA)
–50 –25 0 25 50 75 100
Temperature (°C)
SUPPLY CURRENT vs TEMPERATURE
300
250
200
150
100
50
0
Supply Current (µA)
10 100 1k 10k
I
2
C Bus Rate (KHz)
SUPPLY CURRENT vs I
2
C BUS RATE
INTERNAL V
REF
vs TURN-ON TIME
0 200 400 600 800 1000 1200 1400
Turn-On Time (µs)
Internal V
REF
(%)
100
80
60
40
20
0
No Cap
(42µs)
12-Bit Settling
1µF Cap
(1240µs)
12-Bit Settling