MCP3221DM-PCTL Microchip Technology, MCP3221DM-PCTL Datasheet - Page 11

• Manufacturer Part Number: MCP3221DM-PCTL
• Description: BOARD DEMO FOR PICTAIL MCP3221
• Manufacturer: Microchip Technology
• Series: PICtail™r
• Type: A/Dr

Specifications of MCP3221DM-PCTL

• Number Of Adc's: 1
• Number Of Bits: 12
• Sampling Rate (per Second): 22.3k
• Data Interface: Serial
• Inputs Per Adc: 1 Single Ended
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: MCP3221
• Product: Data Conversion Development Tools
• Resolution: 12 bit
• Interface Type: USB
• Silicon Manufacturer: Microchip
• Silicon Core Number: MCP3221
• Kit Application Type: Data Converter
• Application Sub Type: ADC
• Silicon Family Name: PICtail
• Kit Contents: Board Cables CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: MCP3221
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

2.1
2.2
2.3
© 2005 Microchip Technology Inc.
INTRODUCTION
FEATURES
GETTING STARTED
Chapter 2. Installation and Operation
The MCP3221 PICtail Demo Board is designed to demonstrate Microchip Technology’s
MCP3221 device performance with the DataView™ software, a Personal Computer
(PC) GUI, by way of the USB port. A mechanical potentiometer and a prototype area
are used as the optional input sources to the device. This demo board can be used to
demonstrate firmware development to the MCP3221 device using the PICKit™ 1 Flash
Starter Kit.
This board is designed to evaluate the MCP3221 with minimum PCB noise. It uses a
two-layer board with both analog and digital ground planes. The circuit schematic and
layout have been carefully considered such that the user can evaluate true 12-bit
performance using a simple PC USB power supply.
The MCP3221 PICtail Demo Board has the following features:
• Allows simple evaluation of device performance using USB interface and
• On-board PIC16C745 USB for DataView communication
• Data is displayed in an easy-to-read format complete with data-logging
• Easy to interface to PICKit™ 1 Flash Starter Kit evaluation system
• Simple DC signal generation using mechanical potentiometer
The MCP3221 PICtail Demo Board is used for evaluation and demonstration of the
PGA’s features. A block diagram of the demo board layout is shown in Figure 2-1. The
following procedure describes how to operate this demo board.
1. Install and run the GUI from the PC.
2. Connect the MCP3221 PICtail Demo Board to a PC using a USB cable.
3. Use jumper JP1 to select the mechanical potentiometer.
4. The ADC output code will be graphically displayed on the PC.
DataView software
MCP3221 PICtail™ DEMO
BOARD USER’S GUIDE
DS51545A-page 7