AMC7820_15 Datasheet, PDF (8/32 Pages) Texas Instruments – ANALOG MONITORING AND CONTROL

TYPICAL CHARACTERISTICS: ADC (Cont.)
At T_A = +25°C, +AV_DD, BV_DD = +5.0V, V_REF = Internal +2.5V, unless otherwise noted.
0.030
GAIN ERROR, OFFSET ERROR, INTERNAL V_REF
vs AV_DD SUPPLY VOLTAGE
(Unbuffered Channels)
0.300
0.025
0.250
0.020
0.015
Internal V_REF
0.200
0.150
0.010
0.100
0.005
0.050
0.000
–0.005
Gain
0.000
–0.050
–0.010
–0.015
Offset
–0.100
–0.150
–0.020
–0.200
4.75 4.80 4.85 4.90 4.95 5.00 5.05 5.10 5.15 5.20 5.25
Supply Voltge, AV_DD (V)
POWER-SUPPLY REJECTION vs FREQUENCY
40
35
30
25
20
15
10
5
0
10
100
1k
10k
100k
1M
AV_DD Ripple Frequency (Hz)
INTERNAL REFERENCE VOLTAGE
vs TEMPERATURE
10
5
0
–5
–10
–15
–20
–50
–25
0
25
50
Temperature (°C)
75
100
INTERNAL 2.5V REFERENCE DISTRIBUTION
25
20
15
10
5
0
Internal Reference Voltage (V)
8
AMC7820
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SBAS231B