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MCP3903 Datasheet(PDF) 10 Page - Microchip Technology

Part # MCP3903
Description  Six Channel Delta Sigma A/D Converter
PDF  54 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP3903 Datasheet(HTML) 10 Page - Microchip Technology

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MCP3903
DS25048B-page 10
© 2011 Microchip Technology Inc.
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 2-7:
Spectral Response.
FIGURE 2-8:
Spurious Free Dynamic
Range vs Oversampling Ratio.
FIGURE 2-9:
Signal-to-Noise and
Distortion vs. Oversampling Ratio.
FIGURE 2-10:
Signal-to-Noise and
Distortion vs. Gain (Dithering OFF).
FIGURE 2-11:
Signal-to-Noise and
Distortion vs. Gain (Dithering ON).
FIGURE 2-12:
Total Harmonic Distortion
vs. Oversampling Ratio.
120
Dithering ON
80
100
120
Dithering ON
Dithering OFF
60
80
100
120
Dithering ON
Dithering OFF
40
60
80
100
120
Dithering ON
Dithering OFF
0
20
40
60
80
100
120
Dithering ON
Dithering OFF
0
20
40
60
80
100
120
32
64
128
256
Oversampling Ratio (OSR)
Dithering ON
Dithering OFF
0
20
40
60
80
100
120
32
64
128
256
Oversampling Ratio (OSR)
Dithering ON
Dithering OFF
120
80
100
120
Dithering OFF
Dithering ON
60
80
100
120
Dithering OFF
Dithering ON
40
60
80
100
120
Dithering OFF
Dithering ON
0
20
40
60
80
100
120
Dithering OFF
Dithering ON
0
20
40
60
80
100
120
32
64
128
256
Oversampling Ratio (OSR)
Dithering OFF
Dithering ON
0
20
40
60
80
100
120
32
64
128
256
Oversampling Ratio (OSR)
Dithering OFF
Dithering ON
95
100
85
90
95
100
OSR = 256
70
75
80
85
90
95
100
OSR = 256
OSR = 128
OSR = 64
60
65
70
75
80
85
90
95
100
OSR = 256
OSR = 128
OSR = 32
OSR = 64
50
55
60
65
70
75
80
85
90
95
100
OSR = 256
OSR = 128
OSR = 32
OSR = 64
50
55
60
65
70
75
80
85
90
95
100
1248
16
32
GAIN (V/V)
OSR = 256
OSR = 128
OSR = 32
OSR = 64
50
55
60
65
70
75
80
85
90
95
100
1248
16
32
GAIN (V/V)
OSR = 256
OSR = 128
OSR = 32
OSR = 64
95
100
85
90
95
100
OSR = 256
75
80
85
90
95
100
OSR = 256
OSR = 128
65
70
75
80
85
90
95
100
OSR = 256
OSR = 128
OSR = 64
55
60
65
70
75
80
85
90
95
100
OSR = 256
OSR = 128
OSR = 64
OSR = 32
50
55
60
65
70
75
80
85
90
95
100
1248
16
32
OSR = 256
OSR = 128
OSR = 64
OSR = 32
50
55
60
65
70
75
80
85
90
95
100
1248
16
32
GAIN (V/V)
OSR = 256
OSR = 128
OSR = 64
OSR = 32



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