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MCP3201 数据表(PDF) 13 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) 13 Page - Microchip Technology

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© 2007 Microchip Technology Inc.
DS21290D-page 13
MCP3201
FIGURE 4-1:
Analog Input Model.
FIGURE 4-2:
Maximum Clock Frequency vs. Input
Resistance (R
S)
to maintain less than a 0.1 LSB
deviation in INL from nominal conditions.
C
PIN
VA
R
SS
CHx
7pF
V
T = 0.6V
V
T = 0.6V
I
LEAKAGE
Sampling
Switch
SS
R
S = 1 kΩ
C
SAMPLE
= DAC capacitance
V
SS
V
DD
= 20 pF
±1 nA
LEGEND
VA
=
Signal Source
Rss
=
Source Impedance
CHX
=
Input Channel Pad
C
PIN
=
Input Pin Capacitance
V
T
=
Threshold Voltage
I
LEAKAGE
=
Leakage Current At The Pin
Due To Various Junctions
SS
=
Sampling Switch
Rs
=
Sampling Switch Resistor
C
SAMPLE
=
Sample/hold Capacitance
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
100
1000
10000
Input Resistance (Ohms)
VDD = VREF = 5V
VDD = VREF = 2.7V



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