AMC7812B_15 Datasheet, PDF (20/92 Pages) Texas Instruments – 12-Bit Analog Monitoring and Control Solution with Multichannel ADC, DACs, and Temperature Sensors

AMC7812B
SBAS625A – SEPTEMBER 2013 – REVISED SEPTEMBER 2013
www.ti.com
TYPICAL CHARACTERISTICS: DAC (continued)
At +25°C, unless otherwise noted.
6.5
6
6.1
5.8
5.5
5.4
5
5.1
4.7
4.5
4.4
4
3.7
3.4
3
0
All DAC Channels
T_A = +25°C
Gain = 2
V_REF = 2.5V, Internal
512 1024 1536 2048 2560 3072 3584 4096
Code
Figure 36. SUPPLY CURRENT vs DAC CODE
4
3.5
3
−40 −25 −10 5
Gain = 2
V_REF = 2.5V, Internal
Code = 800h
20 35 50 65 80 95 110
T_A (°C )
Figure 37. SUPPLY CURRENT vs TEMPERATURE
60
T_A = +25°C
30 Units
50
40
30
20
10
0
AI_CC (mA)
Figure 38. DAC SUPPLY CURRENT
1400
1200
1000
T_A = +25°C
Gain = 2
V_REF = 2.5V, Internal
800
600
400
200
0
10
100
1k
10k
100k
1M
Frequency (Hz)
Figure 39. DAC NOISE VOLTAGE vs FREQUENCY
20
15
10
5
0
−5
−10
−15
−20
0
T_A = +25°C
Gain = 2
V_REF = 2.5V, Internal
Code = 800h
4
8
12
16
20
Time (s)
Figure 40. DAC NOISE (0.1 Hz to 10 Hz)
2
1.5
1
0.5
0
−0.5
−1
−1.5
−2
−3
DAC Out SS
DAC Out LS
CS
16
T_A = +25°C
Gain = 2
14
V_REF = 2.5V, Internal
R_L= 2KΩ, C_L = 250pF 12
10
8
6
4
2
0
0
3
6
9
12
Time (µs)
Figure 41. SETTLING TIME RISING EDGE
20
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