AMC1204-Q1_15 Datasheet, PDF (10/33 Pages) Texas Instruments – 20 MHz, Second-Order, Isolated Delta-Sigma Modulator for Current-Shunt Measurement

AMC1204-Q1
SLAS886B – JULY 2012 – REVISED JANUARY 2013
www.ti.com
TYPICAL CHARACTERISTICS (continued)
At AVDD = 5 V, DVDD = 3.3 V, VINP = –250 mV to 250 mV, VINN = 0 V, and sinc³ filter with OSR = 256, unless otherwise
noted.
SINAD AND SNR vs ANALOG SUPPLY VOLTAGE
100
SINAD
SNR
SINAD AND SNR vs TEMPERATURE
100
SINAD
SNR
90
90
80
80
70
70
60
4.5
5
5.5
AVDD (V)
Figure 14.
SINAD AND SNR vs INPUT SIGNAL FREQUENCY
100
SINAD
SNR
90
80
70
60
0.1
1
10
100
Input Signal Frequency (kHz)
Figure 16.
SINAD AND SNR vs CLOCK FREQUENCY
100
SINAD
SNR
90
60
−40 −25 −10 5
20 35 50 65 80 95 110 125
Temperature (°C)
Figure 15.
SINAD AND SNR vs INPUT SIGNAL AMPLITUDE
100
SINAD
90
SNR
80
70
60
50
40
30
20
10
0
0.1
1
10
100
1000
Input Signal Amplitude (mVpp)
Figure 17.
SINAD AND SNR vs CLOCK DUTY CYCLE
100
SINAD
SNR
90
80
80
70
70
60
5
10
15
20
25
Clock Frequency (MHz)
Figure 18.
60
40
45
50
55
60
Clock Duty Cycle (%)
Figure 19.
10
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