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MCP3422 Datasheet(PDF) 2 Page - Microchip Technology

Part # MCP3422
Description  18-Bit, Multi-Channel ?誇 Analog-to-Digital Converter with I2C??Interface and On-Board Reference
PDF  58 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP3422 Datasheet(HTML) 2 Page - Microchip Technology

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MCP3422/3/4
DS22088C-page 2
© 2009 Microchip Technology Inc.
The MCP3422 and MCP3423 devices have two
differential input channels and the MCP3424 has four-
differential input channels. All electrical properties of
these three devices are the same except the
differences in the number of input channels and I2C
address bit selection options.
The MCP3422 is available in 8-pin SOIC, DFN, and
MSOP packages. The MCP3423 is available in 10-pin
DFN, and MSOP packages. The MCP3424 is available
in 14-pin SOIC and TSSOP packages.
Package Types
Functional Block Diagram
4
5
6
9
CH2-
VSS
CH3+
Adr1
Adr0
3
12
CH2+
CH3-
2
13
CH1-
CH4+
1
14
CH1+
CH4-
7
8
SDA
SCL
VDD
11
10
2
3
4
7
8
9
CH1-
VDD
SDA
Adr0
VSS
SCL
1
10
CH1+
Adr1
5
6
CH2-
CH2+
2
3
4
5
6
7
CH1-
VDD
SDA
CH2+
VSS
SCL
1
8
CH1+
CH2-
MCP3422
2x3 DFN*
VDD
CH1-
SDA
CH2+
VSS
1
2
3
4
8
7
6
5 SCL
CH2-
CH1+
* Includes Exposed Thermal Pad (EP); see Table 3-1.
EP
9
MCP3423
3x3 DFN*
VSS
CH1-
CH2+
Adr0
SCL
1
2
3
4
10
9
8
7 SDA
Adr1
CH1+
EP
11
CH2-
5
6 VDD
MCP3422
MSOP, SOIC
MCP3423
MSOP
MCP3424
SOIC, TSSOP
VSS
VDD
PGA
SCL
SDA
I2C
Interface
Gain = 1,2,4, or 8
Voltage Reference
Clock
(2.048V)
VREF
ΔΣ ADC
Converter
Oscillator
CH1+
CH1-
CH2+
CH2-
MCP3422



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