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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  20 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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© 1999 Microchip Technology Inc.
Preliminary
DS21290B-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
S
CHx
7pF
V
T = 0.6V
V
T = 0.6V
I
LEAKAGE
Sampling
Switch
SS
R
SS = 1kΩ
C
SAMPLE
= DAC capacitance
V
SS
V
DD
= 20 pF
±1nA
= Signal Source
= Source Impedance
= Input Channel Pad
= Input Capacitance
= Threshold Voltage
= Leakage Current at the pin
due to various junctions
= Sampling Switch
= Sampling Switch Resistor
= Sample/Hold Capacitance
VA
R
S
CHx
C
PIN
V
T
I
LEAKAGE
SS
R
SS
C
SAMPLE
Legend
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)
V
DD = VREF = 5V
V
DD = VREF = 2.7V



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