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MCP3903 Datasheet(PDF) 11 Page - Microchip Technology

Part # MCP3903
Description  Six Channel Delta Sigma A/D Converter
PDF  54 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP3903 Datasheet(HTML) 11 Page - Microchip Technology

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© 2011 Microchip Technology Inc.
DS25048B-page 11
MCP3903
Note:
Unless otherwise indicated, AVDD = 5.0V, DVDD = 3.3 V; TA = +25°C, MCLK = 4 MHz; PRESCALE = 1; OSR =
64; GAIN = 1; Dithering OFF; VIN = -0.5 dBFS @ 60 Hz.
.
FIGURE 2-13:
Total Harmonic Distortion
vs. Input Signal Frequency.
FIGURE 2-14:
Total Harmonic Distortion
vs. Temperature.
FIGURE 2-15:
Signal-to-Noise and
Distortion vs. Input Signal Frequency.
FIGURE 2-16:
Signal-to-Noise and
Distortion vs. Temperature.
FIGURE 2-17:
Signal-to-Noise and
Distortion vs. Input Signal Amplitude.
FIGURE 2-18:
Signal-to-Noise and
Distortion vs. Master Clock.
-60
fs=15.625KHz
OSR 64
80
-70
-60
fs=15.625KHz
OSR=64
-90
-80
-70
-60
fs=15.625KHz
OSR=64
Dithering OFF
-100
-90
-80
-70
-60
fs=15.625KHz
OSR=64
Dithering OFF
Dithering ON
-110
-100
-90
-80
-70
-60
fs=15.625KHz
OSR=64
Dithering OFF
Dithering ON
-120
-110
-100
-90
-80
-70
-60
20
50
100
200
500 1000 2000
fs=15.625KHz
OSR=64
Dithering OFF
Dithering ON
-120
-110
-100
-90
-80
-70
-60
20
50
100
200
500 1000 2000
Input Frequency (Hz)
fs=15.625KHz
OSR=64
Dithering OFF
Dithering ON
0
fs=15.625KHz
-40
-20
0
fs=15.625KHz
OSR=64
-60
-40
-20
0
fs=15.625KHz
OSR=64
-80
-60
-40
-20
0
fs=15.625KHz
OSR=64
-120
-100
-80
-60
-40
-20
0
fs=15.625KHz
OSR=64
-120
-100
-80
-60
-40
-20
0
-40
-20
0
25
45
85
105 125
Temperature (°C)
fs=15.625KHz
OSR=64
-120
-100
-80
-60
-40
-20
0
-40
-20
0
25
45
85
105 125
Temperature (°C)
fs=15.625KHz
OSR=64
90
100
Dithering OFF
70
80
90
100
Dithering OFF
Dithering ON
40
50
60
70
80
90
100
Dithering OFF
Dithering ON
20
30
40
50
60
70
80
90
100
Dithering OFF
Dithering ON
fs=15 625KHz
0
10
20
30
40
50
60
70
80
90
100
Dithering OFF
Dithering ON
fs=15.625KHz
OSR=64
0
10
20
30
40
50
60
70
80
90
100
20
50
100
200
500
1000 2000
Input Frequency (Hz)
Dithering OFF
Dithering ON
fs=15.625KHz
OSR=64
0
10
20
30
40
50
60
70
80
90
100
20
50
100
200
500
1000 2000
Input Frequency (Hz)
Dithering OFF
Dithering ON
fs=15.625KHz
OSR=64
120
fs=15.625KHz
80
100
120
fs=15.625KHz
OSR=64
60
80
100
120
fs=15.625KHz
OSR=64
40
60
80
100
120
fs=15.625KHz
OSR=64
20
40
60
80
100
120
fs=15.625KHz
OSR=64
0
20
40
60
80
100
120
-40
-20
0
25
45
85
105
125
fs=15.625KHz
OSR=64
0
20
40
60
80
100
120
-40
-20
0
25
45
85
105
125
Temperature (°C)
fs=15.625KHz
OSR=64
80
90
60
70
80
90
40
50
60
70
80
90
20
30
40
50
60
70
80
90
0
10
20
30
40
50
60
70
80
90
-10
0
10
20
30
40
50
60
70
80
90
0.00001
0.001
0.1
10
1000
Input Signal Amplitude (mV)
-10
0
10
20
30
40
50
60
70
80
90
0.00001
0.001
0.1
10
1000
Input Signal Amplitude (mV)



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