Microchip Technology MCP3423EV Data Sheet
© 2009 Microchip Technology Inc.
DS22088C-page 3
MCP3422/3/4
Functional Block Diagram
Functional Block Diagram
V
SS
V
DD
CH1+
CH1-
PGA
SCL
SDA
MUX
I
2
C
Interface
Gain = 1,2,4, or 8
Adr1
Adr0
CH2+
CH2-
Voltage Reference
Clock
(2.048V)
V
REF
ΔΣ ADC
Converter
Oscillator
MCP3423
V
SS
V
DD
CH1+
CH1-
PGA
SCL
SDA
MUX
I
2
C
Interface
Gain = 1,2,4, or 8
Adr1
Adr0
CH2+
CH2-
CH3+
CH3-
CH4+
CH4-
Voltage Reference
Clock
(2.048V)
V
REF
ΔΣ ADC
Converter
Oscillator
MCP3424