MX7581LN+

ADCs/DACs - Special Purpose Overview

The MX7581LN+ is a CMOS single-chip 8-bit, 8-channel data acquisition system (DAS) manufactured by Analog Devices Inc./Maxim Integrated. It integrates an 8-bit successive approximation register (SAR) analog-to-digital converter (ADC), an 8-channel multiplexer, and an 8x8 dual-port RAM with conflict logic on a single die. The device features parallel interface compatibility with standard microprocessors and supports external voltage references. It operates within a commercial temperature range of 0°C to +70°C and is housed in a 28-pin narrow DIP package.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 8-bit ADC with 8-channel multiplexer for complete DAS functionality
• On-chip 8x8 dual-port RAM allows automatic data storage and random access
• Direct interface capability with Z80, 8085, and 6800 microprocessors
• Interleaved DMA operation prevents memory update conflicts during processor access

ADCs/DACs - Special Purpose Applications

• Digital signal processing systems requiring rapid multi-channel data collection
• Industrial data loggers for environmental and process parameter recording
• Automated test equipment for high-accuracy measurement capture
• Process control systems needing real-time sensor data acquisition

ADCs/DACs - Special Purpose Part Context

The MX7581 is part of the MAX161/MX7581 family of monolithic data acquisition systems. It serves as the standard commercial-grade variant, while the MAX161 offers enhanced performance characteristics such as faster conversion times, lower zero error, and extended military temperature ranges. Both devices share pin compatibility and core architectural features, including the integrated RAM and multiplexer structure.