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MCP3918 数据表(PDF) 7 Page - Microchip Technology

部件名 MCP3918
功能描述  3V Single-Channel Analog Front End
Download  88 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

MCP3918 数据表(HTML) 7 Page - Microchip Technology

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 2014 Microchip Technology Inc.
DS20005287A-page 7
MCP3918
TABLE 1-3:
SERIAL AC CHARACTERISTICS
Electrical Specifications:
Unless otherwise indicated, all parameters apply at DVDD = 2.7 to 3.6 V,
TA = -40°C to +125°C (Note 1), GAIN = 1, CLOAD =30pF.
Characteristic
Sym
Min
Typ
Max
Units
Conditions
Serial Clock Frequency
fSCK
——
20
MHz
CS Setup Time
tCSS
25
ns
CS Hold Time
tCSH
50
ns
CS Disable Time
tCSD
50
ns
Data Setup Time
tSU
5—
ns
Data Hold Time
tHD
10
ns
Serial Clock High Time
tHI
20
ns
Serial Clock Low Time
tLO
20
ns
Serial Clock Delay Time
tCLD
50
ns
Serial Clock Enable Time
tCLE
50
ns
Output Valid from SCK Low
tDO
25
ns
Output Hold Time
tHO
0—
ns
Output Disable Time
tDIS
25
ns
Reset Pulse Width (RESET)
tMCLR
100
ns
Data Transfer Time to DR
(Data Ready)
tDODR
25
ns
Note 2
Modulator Mode Entry to
Modulator Data Present
tMODSU
——
100
ns
Data Ready Pulse Low Time
tDRP
1/(2 x DMCLK)
µs
2-Wire Mode Enable Time
tMODE
50
ns
2-Wire Mode
Watchdog Timer
tWATCH
3.5
35
µs
Note 1:
All specifications are valid down to -45°C.
2:
This parameter is established by characterization and not production tested.
TABLE 1-4:
TEMPERATURE SPECIFICATIONS
Electrical Specifications:
Unless otherwise indicated, all parameters apply at AVDD = 2.7 to 3.6V,
DVDD = 2.7 to 3.6V.
Parameters
Sym.
Min.
Typ.
Max.
Units
Conditions
Temperature Ranges
Operating Temperature Range
TA
-40
+125
°C
Note 1, Note 2
Storage Temperature Range
TA
-65
+150
°C
Thermal Package Resistances
Thermal Resistance, 20L 4x4 QFN
JA
—46.2
°C/W
Thermal Resistance, 20L SSOP
JA
—87.3
°C/W
Note 1:
The internal junction temperature (TJ) must not exceed the absolute maximum specification of +150°C.
2:
All specifications are valid down to -45°C.


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