AMC1204_12 Datasheet, PDF (12/32 Pages) Texas Instruments – 20MHz, Second-Order, Isolated Delta-Sigma Modulator for Current-Shunt Measurement

AMC1204
AMC1204B
SBAS512C – APRIL 2011 – REVISED AUGUST 2012
www.ti.com
TYPICAL CHARACTERISTICS (continued)
At AVDD = 5V, DVDD = 3.3V, VINP = –250mV to +250mV, VINN = 0V, and sinc³ filter with OSR = 256, unless otherwise
noted.
SPURIOUS-FREE DYNAMIC RANGE
vs ANALOG SUPPLY VOLTAGE
120
SPURIOUS-FREE DYNAMIC RANGE
vs TEMPERATURE
120
110
110
100
100
90
90
80
80
70
70
60
4.5
5
AVDD (V)
Figure 26.
60
5.5
−40 −25 −10 5 20 35 50 65 80 95 110 125
Temperature (°C)
Figure 27.
SPURIOUS-FREE DYNAMIC RANGE
vs INPUT SUGNAL FREQUENCY
120
110
100
90
80
70
60
0.1
1
10
100
Input Signal Frequency (kHz)
Figure 28.
120
110
100
90
80
70
60
50
40
30
20
10
0
0.1
SPURIOUS-FREE DYNAMIC RANGE
vs INPUT SIGNAL AMPLITUDE
1
10
100
Input Signal Amplitude (mVpp)
Figure 29.
1000
SPURIOUS-FREE DYNAMIC RANGE
vs CLOCK FREQUENCY
120
SPURIOUS-FREE DYNAMIC RANGE
vs CLOCK DUTY CYCLE
120
110
110
100
100
90
90
80
80
70
70
60
5
10
15
20
25
Clock Frequency (MHz)
Figure 30.
60
40
45
50
55
60
Clock Duty Cycle (%)
Figure 31.
12
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