ADUC831 Series
MicroConverter®, 12-Bit ADCs and DACs with Embedded 62 kBytes Flash MCU
Manufacturer: Analog Devices
Catalog
MicroConverter®, 12-Bit ADCs and DACs with Embedded 62 kBytes Flash MCU
Key Features
• ANALOG I/O8-channel, 247 kSPS 12-bit ADCDC performance: ±1 LSB INLAC performance: 71 dB SNRDMA controller for high speed ADC-to-RAM capture2 12-Bit (monotonic) voltage output DACsDual output PWM/Σ-Δ DACsOn-chip temperature sensor function ±3COn-chip voltage reference
• 8-channel, 247 kSPS 12-bit ADCDC performance: ±1 LSB INLAC 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
• Memory62 kBytes on-chip Flash/EE program memory4 kBytes on-chip Flash/EE data memoryFlash/EE, 100 yr retention, 100 kCycles endurance2304 bytes on-chip data RAM
• 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 core8051 compatible instruction set (16 MHz max)12 interrupt sources, 2 priority levelsDual data pointerExtended 11-bit stack pointer
• 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
Description
AI
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.ApplicationsOptical networking—laser power controlBase station systemsPrecision instrumentation, smart sensorsTransient capture systemsDAS and communications systems
