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Analog to Digital Conversion
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Analog to Digital Conversion
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Analog to Digital Conversion
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From Microchip Technology, Inc.
 

 
This application note describes a method for implementing analog to digital (A/D) conversion on the PIC16C5X series of microcontrollers. The converter requires only five external components and is software and hardware configurable for conversion resolutions from 6-bits up to 10-bits and conversion times of 250 ms or longer. The method is usable for both voltage and current conversion and uses a software calibration technique that compensates for time and temperature drift as well as component errors. PIC16C5X microcon-trollers are ideal for simple analog applications because: ? Very low cost ? Few external components required ? Fully programmable. PIC16C5X microcontrollers are offered as One-Time-Programmable (OTP) EPROM devices. ? Available off the shelf from distributors ? Calibration in software for improved measurement accuracy ? Power savings using Sleep mode ? Output pins have large, current source/sink capability to drive LED?s directly
Products & Services
Specialty data acquisition and converter chips condition signals or transform data (information) from one format to another, such from analog to digital.
Analog I/O devices process analog signals (e.g., output of transducers) and output the results in analog format.
Microcontrollers (MCU) are complete computer systems on a chip. They combine an arithmetic logic unit (ALU), memory, timer/counters, serial port, input/output (I/O) ports and a clock oscillator.
Solid state power controllers (SSPC) are semiconductor devices that control power (voltage and/or current) supplied to a load. They perform supervisory and diagnostic functions in order to identify overload conditions and prevent short circuits.
Specialty microprocessors and microcontrollers are specialty or proprietary products and accessories related to microprocessors and microcontrollers.
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Product Announcements
Servoflo Corporation - New, Optimized Sensor Signal Conditioning IC
Servoflo Corporation is pleased to announce a new sensor signal conditioning IC from ZMD. As part of the RBic-Lite™ signal conditioning family of IC's, the ZMD31014 is optimized for... (read more)
Atmel Corporation - AVR MCUs Combine USB, Battery Charging and Analog
New AVR® microcontrollers combine USB controller and high performance analog features. The ATmega16U4 and ATmega32U4 reduce system cost in battery powered devices such as gaming accessories. (read more)
Hsiang Cheng Electric Corp. - 0.02% Portable Energy Meter tester
The HC 3100H is a multi-function precision power meter for three phase systems of 3 or 4 wires and single phase measurements. The measure-ments are comprehensive & fully auto-ranging covering 3 *... (read more)
Melexis, Inc. - MLX16201 Intelligent HV Automotive Relay Driver
The MLX16201 is a multiple purpose intelligent relay driver ASIC designed for automotive applications. (read more)
Aalborg Instruments - Aalborg®'s
Aalborg®'s microprocessor-driven model DFC "Smart" Digital Mass Flow Controllers program, record, and analyze flow rates of gases with a computer via an RS-485 interface. The unit's features include:... (read more)
Melexis, Inc. - MLX81100 DC motor controller with Flash and CPU
The MLX81100 is a highly integrated DC motor controller with bridge pre-driver for smart actuators. (read more)
Vitrek Corporation - Manual/Programmable Bench/System DC Power Supplies
Short Description: The GW Instek family of DC Power Supplies consists of manual/programmable constant voltage/constant current units with deliverable power from <100 VA to >1000VA. Models... (read more)
Alacron, Inc. - FASTVGA PMC MEZZANINE BOARD
One of Alacron's recent additions to its FastSeries family, based on Philips' TriMedia processor, is FastVGA, a PMC daughter-card that lets you add very high speed extra I/O ports to your... (read more)
TechInsights Events - Education Tracks at ESC
ESC Silicon Valley delivers a comprehensive technical program focusing 15+ critical topics that affect your designs. (read more)
K-Tron Process Group - Smart Force Transducer III
K-Tron has incorporated its latest digital weighing technology, the Smart Force Transducer III (SFT III), into select weigh-feeding and metering equipment. (read more)
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Topics of Interest
This application note describes a method forimplementing an ohmmeter or resistance type temperature sensor using the PIC16C5X series of microcontrollers. The ohmmeter requires only two external... (Read More)
PIC16C5X microcontrollers are ideal for implementing low cost combinational and sequential logic circuits that traditionally have been implemented using either numerous TTL gates or using programmable... (Read More)
This application note describes a unique method for implementing interrupts in software on the PIC16C5X series of microcontrollers. This method takes advantage of the PIC16C5X?s architecture which... (Read More)
The PIC16C5X series from Microchip Technology Inc., are 8-bit, high-speed, EPROM-based microcontrollers. This application note describes an implementation of an asynchronous serial I/O using a... (Read More)
Many applications require driving LEDs along with an interface to a keypad. Implementing such designs usually involves using up significant amounts of the processors I/O lines. This application note... (Read More)
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Technical Articles
Analog to Digital Conversion (.pdf) - Microprocessors and Microcontrollers
Jet Engine Test Cell Upgrade - Lab and Test Equipment
Army Vehicle Simulator - Data Acquisition and Signal Conditioning
Understanding Data Acquisition - Data that Matters - Data Acquisition and Signal Conditioning
Ultrasonic Medical Immersion System - Data Acquisition and Signal Conditioning
TSL2550 with Microcontroller (.pdf) - Optoelectronics
Testing Digital ASIC Devices - Lab and Test Equipment
Conversion of Graphics PICtail Plus Board 2 for Compatibility with USB PICtail Plus - Semiconductors
Binary Number System - Measurements and Mathematics
Video System Basics - Machine Vision Equipment
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See more product announcements for Specialty Data Acquisition and Converter Chips
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