MCP3909EV-MCU16 Microchip Technology, MCP3909EV-MCU16 Datasheet - Page 13

• Manufacturer Part Number: MCP3909EV-MCU16
• Description: EVALUATION BOARD FOR MCP3909
• Manufacturer: Microchip Technology

Specifications of MCP3909EV-MCU16

• Number Of Adc's: 2
• Number Of Bits: 16
• Sampling Rate (per Second): 15k
• Data Interface: Serial
• Inputs Per Adc: 1 Differential
• Input Range: ±1 V
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: MCP3909
• Silicon Manufacturer: Microchip
• Application Sub Type: ADC
• Kit Application Type: Data Converter
• Silicon Core Number: MCP3909
• Kit Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1.4
1.5
© 2008 Microchip Technology Inc.
ANALOG INPUT STRUCTURE
UNIVERSAL SERIAL BUS (USB)
Two differential input paths allow external signal sources to be easily connected to the
MCP3909 input. Edge connectors P1 and P2 are 3-pin connectors that act as both
crew type and clip on post connectors.
JP1 and JP2 can be used to force either channel from a differential to single-ended
configuration. R3 and R4 (on CH0), and R1 and R2 (on CH2) act as locations for
burden resistor connectors for any current transformer inputs.
The MCP3909 ADC Evaluation Board for 16-Bit MCUs also contains a USB connection
for higher speed sampling and data collection. The circuit includes a 512 x 8 SRAM for
data collection. The following figure summarizes the connections between the ADC, 2
micros, and memory.
FIGURE 1-5:
Note:
Note:
SRAM
512x8
To use an edge connector as a post connector, pull up the blue plastic top
to access posts.
For this board release, no USB firmware is supplied. The PIC18F86J55 is
blank and only included for development purposes.
8
PIC18F86J55
USB Block Diagram.
RD6/SCK2
RD4/SDO2
USB
USB
RD5/SDI2
RD7/SS2
SCK2/RG6
SDI2/RG7
SDO2/RG8
SS2/RG9
Hardware Description
Module
SERIAL
PIM
RF8/SDO1
RF6/SCK1
RF7/SDI1
DS51777A-page 9
SCK
SDO
SDI
MCP3909
ADC