AMC7836_15 Datasheet, PDF (18/87 Pages) Texas Instruments – AMC7836 High-Density, 12-Bit Analog Monitor and Control Solution With Multichannel ADC, Bipolar DACs, Temperature Sensor, and GPIO Ports

AMC7836
SLAS986B – NOVEMBER 2014 – REVISED FEBRUARY 2015
Typical Characteristics: DAC (continued)
15
10nF, Rising Edge
10
200pF, Rising Edge
5
0
-5
-10
-15
0
5
10
15
20
25
Time (µs)
C001
Code 0x400 to 0xC00 to within ½ LSB
Figure 25. DAC Settling Time vs Load Capacitance
5000
4000
3000
2000
1000
0
10
100
Code 0x800
1k
10k
100k
1M
10M
Frequency (Hz)
C001
Figure 27. DAC Output Noise vs Frequency
15
10
5
0
-5
AVCC
-10
AVSS
DVDD/AVDD
DAC output
-15
±1
0
1
2
3
Time (ms)
C001
AV_SS = AV_EE = -12 V, AV_CC = 0 to 12 V, 2 ms ramp
Figure 29. DAC Power On Overshoot, Dual Supply
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15
10nF, Falling Edge
10
200pF, Falling Edge
5
0
-5
-10
-15
0
5
10
15
20
25
Time (µs)
C001
Code 0xC00 to 0x400 to within ½ LSB
Figure 26. DAC Settling Time vs Load Capacitance
10
15
12
9
5
6
3
0
0
±3
±6
±5
±9
DAC OUTPUT
±12
AVCC
±10
±15
-2
-1
0
1
2
3
4
5
Time (ms)
C002
AV_SS = AV_EE = AGND, AV_CC = 0 to 12 V, 2 ms ramp
Figure 28. DAC Power On Overshoot, Single Supply
0
-2
-4
-6
-8
-10
-12
-12.5
-10
-7.5
-5
-2.5
0
No load
AV_SS (V)
C020
Figure 30. DAC Clamp Output vs AV_SS
18
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