AMC1304L05-Q1 Datasheet, PDF (17/39 Pages) Texas Instruments – High-Precision, Reinforced Isolated Delta-Sigma Modulators with LDO

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AMC1304L05-Q1, AMC1304L25-Q1, AMC1304M05-Q1, AMC1304M25-Q1
SBAS799 – FEBRUARY 2017
Typical Characteristics (continued)
At LDOIN = 15.0 V, DVDD = 3.3 V, AINP = –50 mV to 50 mV (AMC1304x05-Q1) or –250 mV to 250 mV (AMC1304x25-Q1),
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
AMC1304x05-Q1
-110
4
6
8
10
12
14
16
18
V_LDOIN (V)
D020
Figure 24. Signal-to-Noise Ratio and Signal-to-Noise +
Distortion 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 25. Total Harmonic Distortion vs
LDO Input Supply Voltage
10
15
f_CLKIN (MHz)
20
D022
Figure 26. 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 28. Total Harmonic Distortion vs
Input Signal Frequency
Figure 27. 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
AMC1304x25-Q1
Figure 29. Total Harmonic Distortion vs
Input Signal Amplitude
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