AMC7834 Datasheet, PDF (20/93 Pages) Texas Instruments – AMC7834 12-Bit Integrated Power-Amplifier Monitor and Control System with Temperature, Current and Voltage Supervision Capabilities

AMC7834
SLAS972B – NOVEMBER 2014 – REVISED MARCH 2016
Typical Characteristics: DAC (continued)
1000
800
600
400
200
0
1
10
100 1k
10k
100k 1M
Frequency (Hz)
C025
Bipolar DAC, Code 0x800
Figure 27. DAC Noise Voltage vs Frequency
10.0
AVDD
PA_ON
7.5
DAC OUT
AVSS
5.0
2.5
0.0
±2.5
±5.0
±7.5
±10.0
±0.2 ±0.1 0.0 0.1 0.2 0.3 0.4 0.5
Time (ms)
C041
DAC range: –4 to 1 V, Code 0x800
Figure 29. Response to AV_DD Supply Collapse
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10.0
7.5
5.0
2.5
0.0
-2.5
-5.0
-7.5
-10.0
-0.5
0.0 0.5 1.0 1.5 2.0
Time (ms)
DAC range: –5 to 0 V, Code 0x800
PA_ON
DAC OUT
AVSS
2.5 3.0
C039
Figure 28. PA_ON Response to AV_SS Supply Collapse
15
10
5
0
±5
±10
AVDD
AVSS
AVCC
IOVDD
±15
PA_ON
DAC OUT
-0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0
Time (ms)
C040
DAC range: –4 to 1 V, VCLAMP[1:2] = 4/3 V
Figure 30. DAC Power On
20
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