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ADuC831: MicroConverter®, 12-Bit ADCs and DACs with Embedded 62 kBytes Flash MCU Data Sheet (Rev. A)11/21/2002PDF807 K
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ADuC831: Errata Sheet (Rev. B1)1/1/2000PDF45 kB
Overview
Features and Benefits
- ANALOG I/O
- 8-channel, 247 kSPS 12-bit ADC
DC performance: ±1 LSB INL
AC performance: 71 dB SNR - DMA controller for high speed ADC-to-RAM capture
- 2 12-Bit (monotonic) voltage output DACs
- Dual output PWM/Σ-Δ DACs
- On-chip temperature sensor function ±3C
- On-chip voltage reference
- 8-channel, 247 kSPS 12-bit ADC
- Memory
- 62 kBytes on-chip Flash/EE program memory
- 4 kBytes on-chip Flash/EE data memory
- Flash/EE, 100 yr retention, 100 kCycles endurance
- 2304 bytes on-chip data RAM
- 8051 based core
- 8051 compatible instruction set (16 MHz max)
- 12 interrupt sources, 2 priority levels
- Dual data pointer
- Extended 11-bit stack pointer
- See data sheet for additional features
Product Details
The ADuC831 is a fully integrated 247 kSPS data acquisition system incorporating a high performance self-calibrating multi-channel 12-bit ADC, dual 12-bit DACs, and programmable 8-bit MCU on a single chip.
The microcontroller core is an 8052, and therefore 8051-instruction-set compatible with 12 core clock periods per machine cycle. 62 kBytes of nonvolatile Flash/EE program memory are provided on-chip. Four kBytes of nonvolatile Flash/EE data memory, 256 bytes RAM and 2 kBytes of extended RAM are also integrated on-chip.
The ADuC831 also incorporates additional analog functionality with two 12-bit DACs, power supply monitor, and a band gap reference. On-chip digital peripherals include two 16-bit Σ-∆ DACs, dual output 16-bit PWM, watchdog timer, time interval counter, three timers/counters, Timer 3 for baud rate generation and serial I/O ports (I2C, SPI and UART).
On-chip factory firmware supports in-circuit serial download and debug modes (via UART), as well as single-pin emulation mode via the EA pin. The ADuC831 is supported by QuickStart™ and QuickStart Plus development systems featuring low cost software and hardware development tools.
The part is specified for 3 V and 5 V operation over the extended industrial temperature range, and is available in a 52-lead plastic quad flatpack package and in a 56-lead chip scale package.
Applications
- Optical networking—laser power control
- Base station systems
- Precision instrumentation, smart sensors
- Transient capture systems
- DAS and communications systems
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
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AN-282: Fundamentals of Sampled Data Systems2/14/2015PDF2131 kB
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AN-660: XY-Matrix Keypad Interface to MicroConverter® (Rev. 0)2/14/2015PDF286 kB
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• AN-660 Accompanying Source Code
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AN-759: Expanding the Number of DAC Outputs on the ADuC8xx and ADuC702x Families (uC012) (Rev. 0)2/14/2015PDF112 kB
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• AN-759 Companion Code (zip, 3,464 bytes)
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AN-709: RTD Interfacing and Linearization Using an ADuC8xx MicroConverter® (Rev. 0)2/14/2015PDF698 kB
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• AN-709 Accompanying Files (Tools and Source Code)
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AN-1139: Understanding the Parallel Programming Protocol (Rev. 0)1/24/2012PDF174 kB
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AN-1074: Understanding the Serial Download Protocol (Formerly uC004) (Rev. 0)8/10/2010PDF245 kB
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UC-019: DMA To XRAM on the ADuC831/832 (Rev. prA)7/10/2009PDF670 kB
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• uC019 Files
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UC-018: Uses of the Time Interval Counter (Rev. prA)7/10/2009PDF632 kB
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• uC018 Files
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UC-001: MicroConverter® I2C® Compatible Interface7/10/2009PDF126 kB
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• uC001 Files
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UC-007: User Download (ULOAD) Mode7/10/2009PDF0 kB
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• uC007 Files
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UC-020: Migrating to the ADuC831 from the ADuC8128/3/2004PDF52 kB
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UC-009: Addressing 16MB of External Data Memory8/3/2004PDF173 kB
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UC-006: A 4-wire UART-to-PC Interface8/3/2004PDF157 K
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• uC006 Gerber File (1)
ZIP -
• uC006 Files
ZIP -
• uC006 Gerber Files (2)
ZIP
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UG-041: ADuC8xx Evaluation Kit Getting Started User Guide8/20/2009PDF679 kB
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ADuC831 Quick Reference Guide6/2/2008PDF392 kB
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Integrated Route Taken to Pulse Oximetry12/26/2004
Software & Systems Requirements
Code Examples
ADuC831 Code Examples
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
PCN-PDN Information
Support & Discussions
ADUC831 Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
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List Pricing
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Lead Times
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Sampling
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Evaluation Boards
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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.