MCP3422 Microchip Technology Inc., MCP3422 Datasheet - Page 3

• Manufacturer Part Number: MCP3422
• Description: 18-bit, Multi-channel ?? Analog-to-digital Converter With I2c? Interface And On-board Reference
• Manufacturer: Microchip Technology Inc.

Functional Block Diagram
Functional Block Diagram
© 2008 Microchip Technology Inc.
CH1+
CH2+
CH1+
CH2+
CH3+
CH4+
CH1-
CH2-
CH1-
CH2-
CH3-
CH4-
MCP3423
Gain = 1,2,4, or 8
Gain = 1,2,4, or 8
MCP3424
PGA
PGA
V
V
SS
SS
Voltage Reference
Voltage Reference
Converter
Converter
Oscillator
Oscillator
ΔΣ ADC
ΔΣ ADC
(2.048V)
(2.048V)
Clock
Clock
V
V
V
V
REF
REF
DD
DD
Interface
Interface
I
I
2
2
C
C
MCP3422/3/4
SCL
SDA
SDA
Adr1
Adr0
Adr1
Adr0
SCL
DS22088B-page 3