AMC1204 Datasheet, PDF (11/29 Pages) Texas Instruments – 20MHz, Second-Order, Isolated Delta-Sigma Modulator for Current-Shunt Measurement

AMC1204
www.ti.com
SBAS512A – APRIL 2011 – REVISED APRIL 2011
TYPICAL CHARACTERISTICS (continued)
At AVDD = 5V, DVDD = 3.3V, VINP = –250mV to +250mV, VINN = 0V, and sinc³ filter with OSR = 256, unless otherwise
noted.
TOTAL HARMONIC DISTORTION
vs ANALOG SUPPLY VOLTAGE
TOTAL HARMONIC DISTORTION
vs TEMPERATURE
−60
−60
−70
−70
−80
−80
−90
−90
−100
−100
−110
−110
−120
4.5
5
AVDD (V)
Figure 20.
−120
5.5
−40 −25 −10 5 20 35 50 65 80 95 110 125
Temperature (°C)
Figure 21.
TOTAL HARMONIC DISTORTION
vs INPUT SIGNAL FREQUENCY
−60
−70
−80
−90
−100
−110
−120
0.1
1
10
100
Input Signal Frequency (kHz)
Figure 22.
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
0.1
TOTAL HARMONIC DISTORTION
vs INPUT SIGNAL AMPLITUDE
1
10
100
Input Signal Amplitude (mVpp)
Figure 23.
1000
TOTAL HARMONIC DISTORTION
vs CLOCK FREQUENCY
−60
TOTAL HARMONIC DISTORTION
vs CLOCK DUTY CYCLE
−60
−70
−70
−80
−80
−90
−90
−100
−100
−110
−110
−120
5
10
15
20
25
Clock Frequency (MHz)
Figure 24.
−120
40
45
50
55
60
Clock Duty Cycle (%)
Figure 25.
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