AMC7812SPAPR Datasheet, PDF (18/92 Pages) Texas Instruments – 12-Bit Analog Monitoring and Control Solution with Multichannel ADC, DACs, and Temperature Sensors

AMC7812
SBAS513E – JANUARY 2011 – REVISED SEPTEMBER 2013
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TYPICAL CHARACTERISTICS: DAC (continued)
At +25°C, unless otherwise noted.
OFFSET VOLTAGE vs SUPPLY VOLTAGE
3
OFFSET VOLTAGE vs SUPPLY VOLTAGE
5
2
1
0
−1
T_A = +25°C
−2
Gain = 2
V_REF = 2.5V, Internal
Code = 020h
−3
4.5 6 7.5 9 10.5 12 13.5 15 16.5 18
AV_CC (V)
Figure 30.
OUTPUT VOLTAGE vs OUTPUT CURRENT
3
2.9
T_A = +25°C
AV_CC = 15V
2.8
Gain = 2
V_REF = 2.5V, Internal
2.7
Code = 800h
2.6
2.5
2.4
2.3
2.2
2.1
2
−40 −30 −20 −10 0
10 20 30 40
I_LOAD (mA)
Figure 32.
3
1
−1
T_A = +25°C
−3
Gain = 5
V_REF = 2.5V, Internal
Code = 020h
−5
12
13
14
15
16
17
18
AV_CC (V)
Figure 31.
OUTPUT VOLTAGE vs SOURCE CURRENT CAPABILITY
5
FFFh
FF0h
4.95
FE0h
FC0h
4.9
F80h
4.85
4.8
T_A = +25°C
4.75 ^{AVCC = 5V}
Gain = 2
V_REF = 2.5V, Internal
4.7
0
2
4
6
8
I_LOAD (mA)
Figure 33.
10
12
OUTPUT VOLTAGE vs SINK CURRENT CAPABILITY
350
080h
300
040h
020h
010h
250
000h
200
150
100 _{TA = +25°C}
AV_CC = 15V
50 _{Gain = 2}
V_REF = 2.5V, Internal
0
−12 −11 −10 −9 −8 −7 −6 −5 −4 −3 −2 −1 0
I_LOAD (mA)
Figure 34.
DAC SUPPLY CURRENT vs DAC SUPPLY VOLTAGE
4.9
4.7
4.5
4.3
4.1
3.9
3.7
T_A = +25°C
Gain = 2
3.5
V_REF = 2V, External
Code = 800h
3.3
4.5 6 7.5 9 10.5 12 13.5 15 16.5 18
AV_CC (V)
Figure 35.
18
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