Datasheet

2.7 2.85 3.0 3.15 3.3
3V Supply Voltage (V)
Error (LSB)
12.0
8.0
4.0
0
−
4.0
−
8.0
−
12.0
Gain
Offset
V
REF
= 1.25V
2.7 2.85 3.0 3.15 3.3
3V Supply Voltage (V)
Error Match (LSB)
1.0
0.8
0.6
0.4
0.2
0
Gain Match
Offset Match
V
REF
= 1.25V
2.5 3.0 3.5 4.0 4.5 5.0 5.5
AV
DD
Voltage (V)
2.5004
2.5002
2.5000
2.4998
2.4996
2.4994
2.4992
2.4990
2.5V Reference (V)
1.2504
1.2502
1.2500
1.2498
1.2496
1.2494
1.2492
1.2490
1.25V Reference (V)
2.5V
REF
1.25V
REF
Delta from +25
_
C (mV)
−
60
−
40
−
20
0 20 40 60 80 100
Temperature (
_
C)
1.0
0.5
0
−
0.5
−
1.0
−
1.5
−
2.0
−
2.5
−
3.0
−
3.5
−
4.0
2.5V
REF
1.25V
REF
AV
DD
= 5V or 3V
AMC7823
SLAS453F –APRIL 2005–REVISED MARCH 2012 www.ti.com
TYPICAL CHARACTERISTICS: ANALOG-TO-DIGITAL CONVERTER (ADC) (continued)
At +25°C, AV
DD
= DV
DD
= 5V, unless otherwise noted.
GAIN AND OFFSET ERROR GAIN AND OFFSET ERROR MATCH
vs vs
3V SUPPLY 3V SUPPLY
Figure 15. Figure 16.
INTERNAL REFERENCES 2.5V AND 1.25V INTERNAL REFERENCES
vs AV
DD
VOLTAGE vs TEMPERATURE
Figure 17. Figure 18.
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