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MCP3201 数据表(PDF) 9 Page - Microchip Technology

部件名 MCP3201
功能描述  2.7V 12-Bit A/D Converter with SPI Serial Interface
PDF  28 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

MCP3201 数据表(HTML) 9 Page - Microchip Technology

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© 2007 Microchip Technology Inc.
DS21290D-page 9
MCP3201
Note: Unless otherwise indicated, V
DD = VREF = 5V, VSS = 0V, fSAMPLE = 100 ksps, fCLK = 16*fSAMPLE,TA = 25°C
FIGURE 2-25: Effective Number of Bits (ENOB) vs.
V
REF.
FIGURE 2-26: Spurious
Free
Dynamic
Range
(SFDR) vs. Input Frequency.
FIGURE 2-27: Frequency Spectrum of 10 kHz input
(Representative Part).
FIGURE 2-28: Effective Number of Bits (ENOB) vs.
Input Frequency.
FIGURE 2-29: Power Supply Rejection (PSR) vs.
Ripple Frequency.
FIGURE 2-30: Frequency Spectrum of 1 kHz input
(Representative Part, V
DD = 2.7V).
9.00
9.25
9.50
9.75
10.00
10.25
10.50
10.75
11.00
11.25
11.50
11.75
12.00
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
VREF (V)
VDD = VREF = 2.7V
FSAMPLE = 50 ksps
VDD = VREF = 5V
FSAMPLE =100 ksps
0
10
20
30
40
50
60
70
80
90
100
110
100
Input Frequency (kHz)
VDD = VREF = 2.7V
FSAMPLE = 50 ksps
VDD = VREF = 5V, FSAMPLE = 100 ksps
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0
10000
20000
30000
40000
50000
Frequency (Hz)
VDD = VREF = 5V
FSAMPLE = 100 ksps
FINPUT = 9.985kHz
4096 points
8.0
8.5
9.0
9.5
10.0
10.5
11.0
11.5
12.0
1
10
100
Input Frequency (kHz)
VDD = 2.7V
FSAMPLE = 50 ksps
VDD = 5V
FSAMPLE = 100 ksps
-80
-70
-60
-50
-40
-30
-20
-10
0
1
10
100
1000
10000
Ripple Frequency (kHz)
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0
5000
10000
15000
20000
25000
Frequency (Hz)
VDD = VREF = 2.7V
FSAMPLE = 50 ksps
FINPUT = 998.76 Hz
4096 points



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