General Description

The MAX7651/MAX7652 are complete 12-bit data-acquisition systems featuring an algorithmic, switched-capacitor, analog-to-digital converter (ADC), a pulse width-modulated digital-to-analog converter (DAC), three timer/counters, and an industry-standard 8051 microprocessor core with a variety of I/O peripherals. Power down capability and full functionality with supply voltages as low as +3V make the MAX7651/MAX7652 suitable for portable and power-sensitive applications.

Features

? 12-Bit 53ksps ADC with Fully Differential Inputs

? Dual 8-Bit PWM DAC Outputs

? Three Timers

? 4-Clock Cycle 8051-Compatible Instruction Set with Dual Data Pointers

? Programmable Watchdog Supervisor

? Four Parallel I/O Ports

? Dual Serial I/O Ports (up to 375kb)

? +3V or +5V Single-Supply Operation

? DC to 12MHz Clock Speed

? 64-Pin TQFP Package

Applications

? Hand-Held Instruments

? Portable Data-Acquisition Systems

? Temperature Controllers

? Smart Transmitters

? Data Loggers

? Multi-Channel Data-Acquisition with Data Formatting

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