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AMC1204_12 Datasheet, PDF (8/32 Pages) Texas Instruments – 20MHz, Second-Order, Isolated Delta-Sigma Modulator for Current-Shunt Measurement | |||
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AMC1204
AMC1204B
SBAS512C â APRIL 2011 â REVISED AUGUST 2012
www.ti.com
TYPICAL CHARACTERISTICS
At AVDD = 5V, DVDD = 3.3V, VINP = â250mV to +250mV, VINN = 0V, and sinc3 filter with OSR = 256, unless otherwise
noted.
INTEGRAL NONLINEARITY
vs INPUT SIGNAL AMPLITUDE
8
7
6
5
4
3
2
1
0
â250 â200 â150 â100 â50 0 50 100 150 200 250
Input Signal Amplitude (mV)
Figure 2.
INTEGRAL NONLINEARITY vs TEMPERATURE
16
14
12
10
8
6
4
2
0
â2
â4
â6
â8
â10
â12
â14
â16
â40 â25 â10 5
20 35 50 65 80 95 110 125
Temperature (°C)
Figure 3.
OFFSET ERROR
vs ANALOG SUPPLY VOLTAGE
1
0.8
0.6
0.4
0.2
0
â0.2
â0.4
â0.6
â0.8
â1
4.5
5
5.5
AVDD (V)
Figure 4.
OFFSET ERROR vs TEMPERATURE
1
0.8
0.6
0.4
0.2
0
â0.2
â0.4
â0.6
â0.8
â1
â40 â25 â10 5
20 35 50 65 80 95 110 125
Temperature (°C)
Figure 5.
OFFSET ERROR vs CLOCK FREQUENCY
1
0.8
0.6
0.4
0.2
0
â0.2
â0.4
â0.6
â0.8
â1
5
10
15
20
25
Clock Freuency (MHz)
Figure 6.
OFFSET ERROR vs CLOCK DUTY CYCLE
1
0.8
0.6
0.4
0.2
0
â0.2
â0.4
â0.6
â0.8
â1
40
45
50
55
60
Clock Duty Cycle (%)
Figure 7.
8
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