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ADUC842:  Precision Analog Microcontroller: 16MIPS 8052 Flash MCU + 8-Ch 12-Bit ADC + Dual 12-Bit DAC

Product Details


The ADuC841/ADuC842/ADuC843 are complete smart transducer front ends, that integrates a high performance self-calibrating multichannel ADC, a dual DAC, and an optimized single-cycle 20 MHz 8-bit MCU (8051 instruction set compatible) on a single chip.

The ADuC841 and ADuC842 are identical with the exception of the clock oscillator circuit; the ADuC841 is clocked directly from an external crystal up to 20 MHz whereas the ADuC842 uses a 32 kHz crystal with an on-chip PLL generating a programmable core clock up to 16.78 MHz.

The ADuC843 is identical to the ADuC842 except that the ADuC843 has no analog DAC outputs.

The microcontroller is an optimized 8052 core offering up to 20 MIPS peak performance. Three different memory options are available offering up to 62 kBytes of nonvolatile Flash/EE program memory. Four kBytes of nonvolatile Flash/EE data memory, 256 bytes RAM, and 2 kBytes of extended RAM are also integrated on-chip.

Applications

  • Optical networking—laser power control
  • Base station systems
  • Precision instrumentation, smart sensors
  • Transient capture systems
  • DAS and communications systems


FEATURES and BENEFITS

  • 8-Channel, 400kSPS, Self-Calibrating, 12-Bit ADC
  • Two 12-Bit Rail-to-Rail Voltage-Output DACs
  • Two Flexible PWM Outputs/16-Bit SD DACs
  • Single Cycle 16.7MIPS 8052 Core
  • 62K-Byte In-Circuit Re-Programmable Flash Program Memory
  • 4K-Byte Read/Write Accessible Non-Volatile Flash Data Memory
  • 2K-Byte SRAM (In Addition to the 256-Bytes in the 8052 Core)
  • 32kHz External Crystal and On-chip
    Programmable PLL
  • Temperature Monitor
  • Precision Voltage Reference
    (20ppm/°C), Serial Interface Ports
    (UART, I2C & SPI), Watchdog Timer,
    Time Interval Counter (TIC), Power
    Supply Monitor, Power-On-Reset (POR), etc
  • Embedded Download/Debug &
    Emulation Features
  • Pin-compatible upgrade to ADuC832

Functional Block Diagram for ADUC842

Documentation

Title Content Type File Type
ADuC841/ADuC842/ADuC843: MicroConverter, 12- Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU Data Sheet  (Rev 0, 11/2003) (pdf, 903 kB) Data Sheets PDF
AN-1139: Understanding the Parallel Programming Protocol  (pdf, 174 kB) Application Notes PDF
AN-1074: Understanding the Serial Download Protocol (Formerly uC004)  (pdf, 245 kB) Application Notes PDF
AN-759: Expanding the Number of DAC Outputs on the ADuC8xx and ADuC702x Families (uC012)  (pdf, 112 kB) Application Notes PDF
AN-282: Fundamentals of Sampled Data Systems  (pdf, 2131 kB) Application Notes PDF
AN-660: XY-Matrix Keypad Interface to MicroConverter®  (pdf, 286 kB) Application Notes PDF
AN-709: RTD Interfacing and Linearization Using an ADuC8xx MicroConverter®  (pdf, 698 kB) Application Notes PDF
UC-009: Addressing 16MB of External Data Memory  (pdf, 173 kB) Application Notes PDF
UC-006: A 4-wire UART-to-PC Interface  (pdf, 0 kB) Application Notes PDF
AN-654: Optical Module Development Platform 2.5 Gbps Transmitter with Digital Diagnostics  (pdf, 387 kB)
The SFP Digital Diagnostics Development Board is a platform designed to enable optical module designers to develop SFP and SFF compliant transceivers with digital diagnostics.
Application Notes PDF
Using Integrated Precision Analog Microcontrollers to Simplify Data Acquisition System Design
The ins and outs (the I/O) of using Analog Microcontrollers to manage data acquisition applications
Webcasts WEBCAST
ADuC842/ADuC843 Quick Reference Guide  (pdf, 98 kB) User Guides PDF
ECG Front-End Design is Simplified with MicroConverter®
By Enrique Company-Bosch and Eckart Hartmann, Analog Devices, Inc. (Analog Dialogue, Vol 37, November 2003)
Analog Dialogue HTML
Mixed-Signal Control Circuits Use Microcontroller for Flexibility in Implementing PID Algorithms
By Eamon Neary (Analog Dialogue, Volume 38, January 2004)
Analog Dialogue HTML
Integrated Route Taken to Pulse Oximetry
by Aude Richard and Brian Moss, Analog Devices, Inc. (EE Times, 12/6/2004)
Technical Articles HTML
Debugging Mix-Up?  (pdf, 55 kB)
... Today, many different 8-bit architectures proliferate, and predications of the demise of the 8-bit microcontroller are greatly exaggerated. (First published by and reprinted with permission of EPD, 2/2003)
Technical Articles PDF
C and the 8051
Hardware, Modular Programming & Multitasking, 2/e

by Thomas W. Schultz, Prentice Hall PTR, 1997
Recommended Reading HTML
C and the 8051
by Thomas W. Schultz, Prentice Hall PTR, 1999
Recommended Reading HTML
8051 Microcontroller, The: Hardware, Software, and Interfacing, 2/E
by James W. Stewart and Kai Miao, DeVry Institute of Technology, Prentice Hall, 1999
Recommended Reading HTML
The 8051 Microcontroller, 3/E
by I. Scott MacKenzie, University of Guelph, Prentice Hall, 1999
Recommended Reading HTML
Precision Analog Microcontrollers—ARM7® and 8051 Series  (pdf, 5834 kB) Overview PDF
Precision Analog Microcontrollers ARM7® and 8051 Series  (pdf)
ADI's two families of precision analog Flash microcontrollers address the growing need for integration, design ease, programmability, and precision analog performance demanded by industrial, instrumentation, communications, and automotive applications.
Overview PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
Development Tools Software Configurable Products HTML
ADuC842 Code Examples Code Examples HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

ADUC842 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADUC842BCPZ32-3 Status: Production 56 ld LFCSP (8x8mm) 56 Ind Tray, 260 $8.20 $7.22 Y  Material Info Notify Me Purchase
ADUC842BCPZ32-5 Status: Production 56 ld LFCSP (8x8mm) 56 Ind Tray, 260 $8.20 $7.22 Y  Material Info Notify Me Purchase
ADUC842BCPZ62-3 Status: Production 56 ld LFCSP (8x8mm) 56 Ind Tray, 260 $11.08 $9.76 Y  Material Info Notify Me Purchase Sample
ADUC842BCPZ62-5 Status: Production 56 ld LFCSP (8x8mm) 56 Ind Tray, 260 $11.08 $9.76 Y  Material Info Notify Me Purchase Sample
ADUC842BCPZ8-3 Status: Production 56 ld LFCSP (8x8mm) 56 Ind Tray, 260 $7.54 $6.64 Y  Material Info Notify Me Purchase
ADUC842BCPZ8-5 Status: Production 56 ld LFCSP (8x8mm) 56 Ind Tray, 260 $7.54 $6.64 Y  Material Info Notify Me Purchase
ADUC842BSZ62-3 Status: Production 52 ld MQFP (13.90mm width) 52 Ind Tray, 96 $11.08 $9.76 Y  Material Info PCN Purchase Sample
ADUC842BSZ62-5 Status: Production 52 ld MQFP (13.90mm width) 52 Ind Tray, 96 $11.08 $9.76 Y  Material Info PCN Purchase Sample
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADuC842 QuickStart and QuickStart Plus Development
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADUC842QSZ Status: Production ADuC842 Quickstart development system $59.00 Yes -
EVAL-ADUC842QSPZ Status: Production ADuC842 Quickstart Plus development system $99.00 Yes -
USB-EA-CONVZ Status: Production USB-EA Emulator $75.00 Yes -
EVAL-ADUC-CABLE1Z Status: Production UART Serial downloader cable $15.18 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

Check Inventory & Purchase

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