AMC7820 Datasheet, PDF (7/28 Pages) Texas Instruments – ANALOG MONITORING AND CONTROL

TYPICAL CHARACTERISTICS: ADC
At T_A = +25°C, +AV_DD, BV_DD = +5.0V, V_REF = Internal +2.5V, unless otherwise noted.
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0
LINEARITY ERROR vs CODE
(–40°C)
512 1024 1536 2048 2560 3072 3584 4096
Code
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0
LINEARITY ERROR vs CODE
(+25°C)
512 1024 1536 2048 2560 3072 3584 4096
Code
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0
LINEARITY ERROR vs CODE
(+85°C)
512 1024 1536 2048 2560 3072 3584 4096
Code
GAIN ERROR vs TEMPERATURE
0.40
0.20
With 2.5V External Reference
0.00
–0.20
–0.40
With 2.5V Internal Reference
–0.60
–0.80
–50
–25
0
25
50
Temperature (°C)
75
100
OFFSET vs TEMPERATURE
(Internal or External Reference)
1.0
0.5
0.0
–0.5
–1.0
–50
–25
0
25
50
Temperature (°C)
75
100
CHANNEL-TO-CHANNEL MATCH vs TEMPERATURE
(Unbuffered Channels 2, 3, 4, 5)
0.20
0.18
0.16
0.14
0.12
Offset Error Match
0.10
0.08
0.06
0.04
Gain Error Match
0.02
0.00
–50
–25
0
25
50
75
100
Temperature (°C)
AMC7820
7
SBAS231B
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