AMC7836 Datasheet, PDF (18/88 Pages) Texas Instruments – AMC7836 High-Density, 12-Bit Analog Monitor and Control Solution With Multichannel ADC, Bipolar DACs, Temperature Sensor, and GPIO Ports

AMC7836
SLAS986C – NOVEMBER 2014 – REVISED APRIL 2016
Typical Characteristics: DAC (continued)
At T_A = 25°C (unless otherwise noted)
5000
4000
3000
2000
1000
0
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
C001
Code 0x800
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
5
5.0
0
2.5
±5
0.0
±10
±2.5
DAC Output
±15
-5
0
DAC Output Small Signal
±5.0
5 10 15 20 25 30 35
Time (µs)
C031
Code 0xFFF, DAC range: –10 to 0 V, no load
Figure 31. DAC Clamp Recovery
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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
AV_SS (V)
C020
No load
Figure 30. DAC Clamp Output vs AV_SS
15
DVDD/AVDD
AVCC
10
AVSS
IOVDD
DAC OUT
5
0
-5
-10
-15
-0.25 0 0.25 0.5 0.75 1 1.25 1.5
Time (ms)
C001
Code 0xFFF, DAC range: –10 to 0 V, no load
Figure 32. DAC Output With AV_DD and DV_DD Supply
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18
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