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AMC7812 Datasheet, PDF (18/92 Pages) Texas Instruments – 12-Bit ANALOG MONITORING AND CONTROL SOLUTION with Multichannel ADC, DACs, and Temperature Sensors | |||
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AMC7812
SBAS513D â JANUARY 2011 â REVISED OCTOBER 2012
www.ti.com
TYPICAL CHARACTERISTICS: DAC (continued)
At +25°C, unless otherwise noted.
GAIN ERROR vs SUPPLY
0.15
0.1
GAIN ERROR vs SUPPLY
0.3
TA = +25°C
Gain = 5
0.2
VREF = 2.5V, Internal
0.05
0.1
0
0
â0.05
â0.1
TA = +25°C
Gain = 2
VREF = 2.5V, Internal
â0.15
4.5 6 7.5 9 10.5 12 13.5 15 16.5 18
AVCC (V)
Figure 24.
â0.1
â0.2
â0.3
12
13
14
15
16
17
18
AVCC (V)
Figure 25.
OFFSET VOLTAGE
35
TA = +25°C
30 Gain = 2
VREF = 2.5V, Internal
Code = 020h
25 2220 Channels
20
15
10
5
0
Offset Error (mV)
Figure 26.
OFFSET VOLTAGE
35
TA = +25°C
30
Gain = 5
VREF = 2.5V, Internal
Code = 020h
25
10884 Channels
20
15
10
5
0
Offset Error (mV)
Figure 27.
OFFSET VOLTAGE vs TEMPERATURE
2
1.5
1
0.5
0
â0.5
â1
â1.5
â2
â40 â25 â10 5
Gain = 2
VREF = 2.5V, Internal
Code = 020h
20 35 50 65 80 95 110
TA (°C )
Figure 28.
OFFSET VOLTAGE vs TEMPERATURE
5
4
3
2
1
0
â1
â2
â3
â4
â5
â40 â25 â10 5
Gain = 5
VREF = 2.5V, Internal
Code = 020h
20 35 50 65 80 95 110
TA (°C )
Figure 29.
18
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