AMC7834 Datasheet, PDF (19/93 Pages) Texas Instruments – AMC7834 12-Bit Integrated Power-Amplifier Monitor and Control System with Temperature, Current and Voltage Supervision Capabilities

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Typical Characteristics: DAC (continued)
0.20
0.16
0.12
0.08
0.04
0.00
-0.04
-0.08
-0.12
-0.16
-0.20
±40 ±25 ±10 5 20 35 50 65 80
T_A (ƒC)
AV_DD = 5.5 V, AV_SS = –5.5 V
0 to 5 V
-5 to 0 V
-4 to 1 V
95 110 125
C019
Figure 21. Bipolar DAC Gain Error vs Temperature
5.000
4.950
4.900
4.850
4.800
4.750
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Load Current (mA)
C021
DAC range = 0 to 5 V, Code 0xFFF
Figure 23. DAC Source Current
50
100pF
40
200pF
30
1nF
10nF
20
10
0
-10
-20
-30
-40
-50
0
5
10
15
20
25
30
Time ( s)
C023
Code 0x000 to 0xFFF to within 0.5% of final value
Figure 25. DAC Settling Time
AMC7834
SLAS972B – NOVEMBER 2014 – REVISED MARCH 2016
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
±60 ±50 ±40 ±30 ±20 ±10 0 10 20 30 40 50 60
Loading Current (mA)
C020
DAC range = 0 to 5 V, Code 0x800
Figure 22. DAC Output Voltage vs Load Current
0.50
0.40
0.30
0.20
0.10
0.00
±15 ±14 ±13 ±12 ±11 ±10 ±9 ±8 ±7 ±6 ±5 ±4 ±3 ±2 ±1 0
Load Current (mA)
C022
DAC range = 0 to 5 V, Code 0x000, AV_SS = 0 V
Figure 24. DAC Sink Current
10
8
6
4
2
0
±2
±4
±6
±8
AUXDAC
DAC
±10
0 2 4 6 8 10 12 14 16 18 20
Time (s)
C024
Code 0x800
Figure 26. DAC Output Noise, 0.1 Hz to 10 Hz
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