AMC1305L25 Datasheet, PDF (14/39 Pages) Texas Instruments – AMC1305x High-Precision, Reinforced Isolated Delta-Sigma Modulators

AMC1305L25, AMC1305M05, AMC1305M25
SBAS654C – JUNE 2014 – REVISED DECEMBER 2014
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Typical Characteristics (continued)
At T_A = 25°C, AVDD = 5.0 V, DVDD = 3.3 V, AINP = –250 mV to 250 mV, AINN = 0 V, f_CLKIN = 20 MHz, and sinc³ filter with
OSR = 256, unless otherwise noted.
100
-60
SNR
95
SINAD
-65
90
-70
85
-75
80
-80
75
-85
70
-90
65
-95
60
-100
55
-105
50
0 10 20 30 40 50 60 70 80 90 100
V_IN (mVpp)
D019
AMC1305M05
-110
4.5 4.6 4.7 4.8 4.9 5 5.1 5.2 5.3 5.4 5.5
AVDD (V)
D020
Figure 21. SNR and SINAD vs Input Signal Amplitude
-60
-65
-70
-75
-80
-85
-90
-95
-100
-105
-110
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature (°C)
D021
-60
-65
-70
-75
-80
-85
-90
-95
-100
-105
-110
5
Figure 22. Total Harmonic Distortion vs
High-Side Supply Voltage
10
15
f_CLKIN (MHz)
20
D022
Figure 23. Total Harmonic Distortion vs Temperature
-60
-65
-70
-75
-80
-85
-90
-95
-100
-105
-110
0.1
1
10
f_IN (kHz)
100
D023
Figure 25. Total Harmonic Distortion vs
Input Signal Frequency
Figure 24. Total Harmonic Distortion vs Clock Frequency
-60
-65
-70
-75
-80
-85
-90
-95
-100
-105
-110
0
50 100 150 200 250 300 350 400 450 500
V_IN (mVpp)
D024
AMC1305x25
Figure 26. Total Harmonic Distortion vs
Input Signal Amplitude
14
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