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MCP3903 Datasheet(PDF) 2 Page - Microchip Technology

Part # MCP3903
Description  Six Channel Delta Sigma A/D Converter
PDF  54 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP3903 Datasheet(HTML) 2 Page - Microchip Technology

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MCP3903
DS25048B-page 2
© 2011 Microchip Technology Inc.
Functional Block Diagram
CH0+
CH0-
CH1+
CH1-
SDO
SDI
SCK
DUAL DS ADC
ANALOG DIGITAL
SINC3
-
+
PGA
Xtal Oscillator
MCLK
OSC1
OSC2
DRA
RESET
Digital SPI
Interface
Clock
Generation
SINC3
-
+
PGA
Modulator
AMCLK
DMCLK/DRCLK
DMCLK
Phase
Shifter
PHASEA <7:0>
OSR<1:0>
PRE<1:0>
DATA_CH0<23:0>
DATA_CH1<23:0>
CS
REFIN/OUT+
REFIN -
AVDD
AGND
DGND
DVDD
POR
AVDD
Monitoring
Modulator
VREF+
VREF-
VREFEXT
Voltage
Reference
VREF
+
-
Δ -Σ
Δ -Σ
Φ
CH2+
CH2-
CH3+
CH3-
DUAL DS ADC
SINC3
-
+
PGA
SINC3
-
+
PGA
Modulator
Phase
Shifter
PHASEB <7:0>
DATA_CH2<23:0>
DATA_CH3<23:0>
Modulator
Δ -Σ
Δ -Σ
Φ
CH4+
CH4-
CH5+
CH5-
DUAL DS ADC
SINC3
-
+
PGA
SINC3
-
+
PGA
Modulator
Phase
Shifter
PHASEC <7:0>
DATA_CH4<23:0>
DATA_CH5<23:0>
Modulator
Δ -Σ
Δ -Σ
Φ
DRB
DRC
POR



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