AMC1204-Q1_15 Datasheet, PDF (13/33 Pages) Texas Instruments – 20 MHz, Second-Order, Isolated Delta-Sigma Modulator for Current-Shunt Measurement

AMC1204-Q1
www.ti.com
SLAS886B – JULY 2012 – REVISED JANUARY 2013
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.
FREQUENCY SPECTRUM
(4096 point FFT, f_IN = 1 kHz, 056 V_PP)
0
FREQUENCY SPECTRUM
(4096 point FFT, f_IN = 5 kHz, 056 V_PP)
0
-20
-20
-40
-40
-60
-60
-80
-80
-100
-100
-120
-120
-140
0
5 10 15 20 25 30 35 40
Frequency (kHz)
Figure 32.
-140
0
5 10 15 20 25 30 35 40
Frequency (kHz)
Figure 33.
ANALOG SUPPLY CURRENT
vs ANALOG SUPPLY VOLTAGE
16
14
12
10
8
6
4
2
0
4.5
5
5.5
AVDD (V)
Figure 34.
ANALOG SUPPLY CURRENT vs TEMPERATURE
16
14
12
10
8
6
4
2
0
−40 −25 −10 5
20 35 50 65 80 95 110 125
Temperature (°C)
Figure 35.
ANALOG SUPPLY CURRENT vs CLOCK FREQUENCY
16
14
12
10
8
6
4
2
0
5
10
15
20
25
Clock Frequency (MHz)
Figure 36.
DIGITAL SUPPLY CURRENT
vs DIGITAL SUPPLY VOLTAGE (3 V)
16
14
12
10
8
6
4
2
0
2.7
3
3.3
3.6
DVDD (V)
Figure 37.
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