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ADUC812

Analog Devices
Part Number ADUC812
Manufacturer Analog Devices
Description Multichannel 12-Bit ADC
Published Mar 23, 2005
Detailed Description a MicroConverter®, Multichannel 12-Bit ADC with Embedded Flash MCU ADuC812 FEATURES Analog I/O 8-Channel, High Accura...
Datasheet PDF File ADUC812 PDF File

ADUC812
ADUC812

Overview
a MicroConverter®, Multichannel 12-Bit ADC with Embedded Flash MCU ADuC812 FEATURES Analog I/O 8-Channel, High Accuracy 12-Bit ADC On-Chip, 100 ppm/؇C Voltage Reference High Speed 200 kSPS DMA Controller for High Speed ADC-to-RAM Capture 2 12-Bit Voltage Output DACs On-Chip Temperature Sensor Function Memory 8K Bytes On-Chip Flash/EE Program Memory 640 Bytes On-Chip Flash/EE Data Memory 256 Bytes On-Chip Data RAM 16M Bytes External Data Address Space 64K Bytes External Program Address Space 8051 Compatible Core 12 MHz Nominal Operation (16 MHz Max) 3 16-Bit Timer/Counters High Current Drive Capability—Port 3 9 Interrupt Sources, 2 Priority Levels Power Specified for 3 V and 5 V Operation Normal, Idle, and Power-Down Modes On-Chip Peripherals UART and SPI® Serial I/O 2-Wire (400 kHz I2C® Compatible) Serial I/O Watchdog Timer Power Supply Monitor APPLICATIONS Intelligent Sensors Calibration and Conditioning Battery-Powered Systems (Portable PCs, Instruments, Monitors) Transient Capture Systems DAS and Communications Systems Control Loop Monitors (Optical Networks/Base Stations) GENERAL DESCRIPTION The ADuC812 is a fully integrated 12-bit data acquisition system incorporating a high performance self-calibrating multichannel ADC, dual DAC, and programmable 8-bit MCU (8051 instruction set compatible) on a single chip.
The programmable 8051 compatible core is supported by 8K bytes Flash/EE program memory, 640 bytes Flash/EE data memory, and 256 bytes data SRAM on-chip.
Additional MCU support functions include Watchdog Timer, Power Supply Monitor, and ADC DMA functions.
Thirty-two programmable I/O lines, I2C compatible SPI and Standard UART Serial Port I/O are provided for multiprocessor interfaces and I/O expansion.
Normal, idle, and power-down operating modes for both the MCU core and analog converters allow flexible power management schemes suited to low power applications.
The part is specified for 3 V and 5 V operation over the industrial temperature range and is ...


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