AMC7823_15 Datasheet, PDF (16/55 Pages) Texas Instruments – ANALOG MONITORING AND CONTROL CIRCUIT

AMC7823
SLAS453F – APRIL 2005 – REVISED MARCH 2012
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TYPICAL CHARACTERISTICS: DIGITAL-TO-ANALOG CONVERTER (DAC) (continued)
At +25°C, AV_DD = DV_DD = 5V, unless otherwise noted.
LINEARITY ERROR vs CODE
(+25°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
LINEARITY ERROR vs CODE
(+25°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 23.
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 24.
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
LINEARITY ERROR vs CODE
(+85°C, AV_DD = 5V, V_REF = 2.5V, GAIN = 1)
512 1024 1536 2048 2560 3072 3584 4096
Code
Figure 25.
LINEARITY ERROR vs CODE
(+85°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 26.
NORMALIZED OFFSET ERROR
vs TEMPERATURE
2.0
External 2.5V Reference
1.5 AV_DD = 5V
1.0
0.5
Gain = +1
0
−0.5
−1.0
Gain = +2
−1.5
−2.0
−60 −40 −20 0
20 40 60 80 100
Temperature (_C)
Figure 27.
NORMALIZED GAIN ERROR
vs TEMPERATURE
0.10
External 2.5V Reference
AV_DD = 5V
0.05
0
−0.05
−0.10
−60 −40 −20 0
20 40 60 80 100
Temperature (_ C)
Figure 28.
16
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