AMC1204_15 Datasheet, PDF (12/37 Pages) Texas Instruments – AMC1204 20-MHz, Second-Order, Isolated Delta-Sigma Modulator

AMC1204, AMC1204B
SBAS512E – APRIL 2011 – REVISED SEPTEMBER 2015
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.
100
SINAD
SNR
100
SINAD
SNR
90
90
80
80
70
70
60
4.5
5
5.5
AVDD (V)
Figure 14. SINAD and SNR vs Analog Supply Voltage
100
SINAD
SNR
90
80
70
60
0.1
1
10
100
Input Signal Frequency (kHz)
Figure 16. SINAD and SNR vs Input Signal 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 Temperature
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 Input Signal Amplitude
100
SINAD
SNR
90
80
80
70
70
60
5
10
15
20
25
Clock Frequency (MHz)
Figure 18. SINAD and SNR vs Clock Frequency
60
40
45
50
55
60
Clock Duty Cycle (%)
Figure 19. SINAD and SNR vs Clock Duty Cycle
12
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