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