AMC1306E05_017 Datasheet, PDF (18/38 Pages) Texas Instruments – Small, High-Precision, Reinforced Isolated Delta-Sigma Modulators with High CMTI

AMC1306E05, AMC1306E25, AMC1306M05, AMC1306M25
SBAS734A – MARCH 2017 – REVISED JULY 2017
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Typical Characteristics (continued)
at AVDD = 5 V, DVDD = 3.3 V, AINP = –50 mV to 50 mV (AMC1306x05) or –250 mV to 250 mV (AMC1306x25),
AINN = AGND, f_CLKIN = 20 MHz, and sinc³ filter with OSR = 256 (unless otherwise noted)
120
0
115
-20
110
-40
105
100
-60
95
-80
90
-100
85
-120
80
75
-140
70
0 10 20 30 40 50 60 70 80 90 100
V_IN (mVpp)
D046
AMC1306x05
-160
0
5 10 15 20 25 30 35
Frequency (kHz)
AMC1306x05, 4096-point FFT, V_IN = 100 mV_PP
40
D044
Figure 36. Spurious-Free Dynamic Range vs
Input Signal Amplitude
0
Figure 37. Frequency Spectrum with 1-kHz Input Signal
0
-20
-20
-40
-40
-60
-60
-80
-80
-100
-100
-120
-120
-140
-140
-160
0
5 10 15 20 25 30 35
Frequency (kHz)
AMC1306x05, 4096-point FFT, V_IN = 100 mV_PP
40
D045
-160
0
5 10 15 20 25 30 35
Frequency (kHz)
AMC1306x25, 4096-point FFT, V_IN = 500 mV_PP
40
D031
Figure 38. Frequency Spectrum with 10-kHz Input Signal
0
-20
-40
-60
-80
-100
-120
-140
-160
0
5 10 15 20 25 30 35
Frequency (kHz)
AMC1306x25, 4096-point FFT, V_IN = 500 mV_PP
40
D032
Figure 39. Frequency Spectrum with 1-kHz Input Signal
10
9.5
9
8.5
8
7.5
7
6.5
6
5.5
5
4.5
4
3
3.5
4
4.5
5
5.5
AVDD (V)
D033
Figure 40. Frequency Spectrum with 10-kHz Input Signal
Figure 41. High-Side Supply Current vs
High-Side Supply Voltage
18
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