AMC1304L05_15 Datasheet, PDF (12/39 Pages) Texas Instruments – AMC1304x High-Precision,Reinforced Isolated Delta-Sigma Modulators with LDO

AMC1304L05, AMC1304L25, AMC1304M05, AMC1304M25
SBAS655C – SEPTEMBER 2014 – REVISED SEPTEMBER 2015
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7.13 Typical Characteristics
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.
20
0
AMC1304x05
AMC1304x25
0
-20
-20
-40
-40
-60
-60
-80
-80
AMC1304x05
AMC1304x25
-100
-0.2
0
0.2 0.4 0.6 0.8
1
1.2
V_CM (V)
D001
-100
-120
0.001
0.01
0.1 0.2 0.5 1 2 3 5 710 20 50 100
f_IN (kHz)
D002
Figure 3. Input Current vs Input Common-Mode Voltage
4
3
2
1
0
-1
-2
-3
-4
-50 -40 -30 -20 -10 0 10 20 30 40 50
V_IN (mV)
D003
Figure 4. Common-Mode Rejection Ratio vs
Input Signal Frequency
4
3.5
3
2.5
2
1.5
1
0.5
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature (°C)
D004
Figure 5. Integral Nonlinearity vs Input Signal Amplitude
100
80
60
40
20
0
-20
-40
-60
-80
-100
4
6
8
10
12
14
16
18
V_LDOIN (V)
D005
AMC1304x25
Figure 7. Offset Error vs LDO Input Supply Voltage
Figure 6. Integral Nonlinearity vs Temperature
50
40
30
20
10
0
-10
-20
-30
-40
-50
4
6
8
10
12
14
16
18
V_LDOIN (V)
D006
AMC1304x05
Figure 8. Offset Error vs LDO Input Supply Voltage
12
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