AMC1204_15 Datasheet, PDF (10/37 Pages) Texas Instruments – AMC1204 20-MHz, Second-Order, Isolated Delta-Sigma Modulator

AMC1204, AMC1204B
SBAS512E – APRIL 2011 – REVISED SEPTEMBER 2015
www.ti.com
6.13 Typical Characteristics
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.
8
7
6
5
4
3
2
1
0
−250 −200 −150 −100 −50 0 50 100 150 200 250
Input Signal Amplitude (mV)
16
14
12
10
8
6
4
2
0
−2
−4
−6
−8
−10
−12
−14
−16
−40 −25 −10 5
20 35 50 65 80 95 110 125
Temperature (°C)
Figure 2. Integral Nonlinearity vs Input Signal Amplitude
1
0.8
0.6
0.4
0.2
0
−0.2
−0.4
−0.6
−0.8
−1
4.5
5
5.5
AVDD (V)
Figure 3. Integral Nonlinearity vs Temperature
1
0.8
0.6
0.4
0.2
0
−0.2
−0.4
−0.6
−0.8
−1
−40 −25 −10 5
20 35 50 65 80 95 110 125
Temperature (°C)
Figure 4. Offset Error vs Analog Supply Voltage
1
0.8
0.6
0.4
0.2
0
−0.2
−0.4
−0.6
−0.8
−1
5
10
15
20
25
Clock Freuency (MHz)
Figure 5. Offset Error vs Temperature
1
0.8
0.6
0.4
0.2
0
−0.2
−0.4
−0.6
−0.8
−1
40
45
50
55
60
Clock Duty Cycle (%)
Figure 6. Offset Error vs Clock Frequency
Figure 7. Offset Error vs Clock Duty Cycle
10
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