AMC7823_15 Datasheet, PDF (15/55 Pages) Texas Instruments – ANALOG MONITORING AND CONTROL CIRCUIT

AMC7823
www.ti.com
SLAS453F – APRIL 2005 – REVISED MARCH 2012
TYPICAL CHARACTERISTICS: ANALOG-TO-DIGITAL CONVERTER (ADC) (continued)
At +25°C, AV_DD = DV_DD = 5V, unless otherwise noted.
INTERNAL 2.5V REFERENCE
(AV_DD = 5V)
25
INTERNAL 1.25V REFERENCE
(AV_DD = 2.7V)
60
20
50
40
15
30
10
20
5
10
0
Histogram Bins (V)
Figure 19.
0
1.247 1.248 1.249 1.250 1.251 1.252 1.253
Histogram Bins (V)
Figure 20.
TYPICAL CHARACTERISTICS: DIGITAL-TO-ANALOG CONVERTER (DAC)
At +25°C, AV_DD = DV_DD = 5V, unless otherwise noted.
LINEARITY ERROR vs CODE
(–40°C, AV_DD = 5V, V_REF = 2.5V, GAIN = 1)
8.0
6.0
4.0
2.0
0
−2.0
−4.0
−6.0
−8.0
1.0
0.8
0.6
0.4
0.2
0
−0.2
−0.4
−0.6
−0.8
−1.0
0
512 1024 1536 2048 2560 3072 3584 4096
Code
Figure 21.
LINEARITY ERROR vs CODE
(–40°C, AV_DD = 2.7V, V_REF = 1.25V, GAIN = 1)
8.0
6.0
4.0
2.0
0
−2.0
−4.0
−6.0
−8.0
1.0
0.8
0.6
0.4
0.2
0
−0.2
−0.4
−0.6
−0.8
−1.0
0
512 1024 1536 2048 2560 3072 3584 4096
Code
Figure 22.
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