MAX7651
Flash Programmable 12-Bit Integrated Data-Acquisition Systems
Overview
- 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
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.
The MAX7651/MAX7652 perform fully differential voltage measurements with 12-bit resolution, programmable gain, and separate track-and-hold for both positive and negative inputs. The converter accepts versatile input modes consisting of four 2-channel signal pairs or eight 1-channel signals relative to a floating common.
The MAX7651/MAX7652 microprocessor systems feature a CPU, 256 bytes of RAM, two 8kB flash memory, four 8-bit I/O ports, two UARTs, an interrupt controller, and a watchdog timer. Only four clock cycles are required to complete each microprocessor instruction.
The MAX7651/MAX7652 are available in 64-pin TQFP packages.
Applications
- Data Logging
- Handheld Instruments (PDAs, Palmtops)
- Multi-Channel Data-Acquisition with Data Formatting
- Portable Data-Acquisition Systems
- Smart Transmitters
- Temperature Control
Documentation
Data Sheet 1
Application Note 1
Design Note 1
Technical Articles 4
This is the most up-to-date revision of the Data Sheet.
Evaluation Kits
Evaluation Kit for the MAX7651
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