AMC1304L05_15 Datasheet, PDF (16/39 Pages) Texas Instruments – AMC1304x High-Precision,Reinforced Isolated Delta-Sigma Modulators with LDO

AMC1304L05, AMC1304L25, AMC1304M05, AMC1304M25
SBAS655C – SEPTEMBER 2014 – REVISED SEPTEMBER 2015
www.ti.com
Typical Characteristics (continued)
At LDOIN = 15.0 V, DVDD = 3.3 V, AINP = –50 mV to 50 mV (AMC1304x05) or –250 mV to 250 mV (AMC1304x25),
AINN = 0 V, f_CLKIN = 20 MHz, and sinc³ filter with OSR = 256, unless otherwise noted.
-60
110
-65
105
-70
100
-75
95
-80
90
-85
85
-90
80
-95
75
-100
70
-105
65
-110
0
50
100
V_IN (mVpp)
AMC1304x05
150
D025
60
4
6
8
10
12
14
16
18
V_LDOIN (V)
D026
Figure 27. Total Harmonic Distortion vs
Input Signal Amplitude
110
105
100
95
90
85
80
75
70
65
60
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature (°C)
D027
110
105
100
95
90
85
80
75
70
65
60
5
Figure 28. Spurious-Free Dynamic Range vs
LDO Input Supply Voltage
10
15
f_CLKIN (MHz)
20
D028
Figure 29. Spurious-Free Dynamic Range vs Temperature
110
105
100
95
90
85
80
75
70
65
60
0.1
1
10
f_IN (kHz)
100
D029
Figure 31. Spurious-Free Dynamic Range vs
Input Signal Frequency
110
105
100
95
90
85
80
75
70
65
60
0
Figure 30. Spurious-Free Dynamic Range vs
Clock Frequency
50 100 150 200 250 300 350 400 450 500
V_IN (mVpp)
D030
AMC1304x25
Figure 32. Spurious-Free Dynamic Range vs
Input Signal Amplitude
16
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