AMC1305L25-Q1 Datasheet, PDF (18/38 Pages) Texas Instruments – High-Precision, Reinforced Isolated Delta-Sigma Modulators

AMC1305L25-Q1, AMC1305M05-Q1, AMC1305M25-Q1
SBAS797 – FEBRUARY 2017
www.ti.com
Typical Characteristics (continued)
At T_A = 25°C, AVDD = 5.0 V, DVDD = 3.3 V, AINP = –250 mV to 250 mV, AINN = 0 V, f_CLKIN = 20 MHz, and sinc³ filter with
OSR = 256, unless otherwise noted.
110
0
105
-20
100
95
-40
90
-60
85
80
-80
75
-100
70
-120
65
60
-140
0
50
100
150
0
5 10 15 20 25 30 35 40
V_IN (mVpp)
D031
Frequency (kHz)
D032
AMC1305M05-Q1
AMC1305x25-Q1, 4096-point FFT, V_IN = 500 mV_PP
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
0
5 10 15 20 25 30 35 40
Frequency (kHz)
D033
AMC1305x25-Q1, 4096-point FFT, V_IN = 500 mV_PP
Figure 38. Frequency Spectrum with 5-kHz Input Signal
0
-140
0
5 10 15 20 25 30 35 40
Frequency (kHz)
D034
AMC1305M05-Q1, 4096-point FFT, V_IN = 500 mV_PP
Figure 39. Frequency Spectrum with 1-kHz Input Signal
10
-20
9
-40
8
-60
7
-80
6
-100
5
-120
4
-140
0
5 10 15 20 25 30 35 40
Frequency (kHz)
D035
AMC1305M05-Q1, 4096-point FFT, V_IN = 500 mV_PP
Figure 40. Frequency Spectrum with 5-kHz Input Signal
3
4.5 4.6 4.7 4.8 4.9 5 5.1 5.2 5.3 5.4 5.5
AVDD (V)
D036
Figure 41. High-Side Supply Current vs
High-Side Supply Voltage
18
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