AD7224LPZ

Overview

The AD7224LPZ is an 8-bit CMOS digital-to-analog converter (DAC) with integrated output amplifiers, manufactured by Analog Devices Inc. It operates within a temperature range of -40°C to +85°C and features a total unadjusted error of ±1 LSB maximum. The device utilizes Linear Compatible CMOS (LC2MOS) fabrication for low power consumption and high reliability. It supports both single and dual supply configurations, with specified performance guaranteed for reference voltages between +2 V and +12.5 V under dual supply conditions. The component includes double-buffered interface logic for simultaneous updates in multi-DAC systems.

Feature Summary

• Integrated 8-bit DAC and unity gain noninverting CMOS amplifier on a monolithic chip
• Double buffered interface logic allowing simultaneous update of multiple devices
• Low total unadjusted error of less than 1 LSB over the operating temperature range
• Compatible with TTL and 5V CMOS logic levels for direct microprocessor interfacing

Applications

• Microprocessor-based data acquisition systems requiring simultaneous multi-channel updates
• Portable instrumentation utilizing single supply operation
• System calibration cycles using zero override functionality
• Bipolar output applications configured with external resistors

Procurement Notes

Verify the specific ordering suffix 'P' corresponds to the Plastic Leaded Chip Carrier (PLCC) package option when sourcing this component. Confirm that the required temperature range meets the industrial specification of -40°C to +85°C. Ensure that the system design accounts for the ESD sensitivity of the device during handling and assembly processes.

Selection Notes

Select the AD7224LPZ when an 8-bit resolution with ±1 LSB total unadjusted error is required for industrial temperature environments. Choose this part if the application benefits from the PLCC surface mount package format. Consider dual supply operation to optimize settling time and sink current capability compared to single supply configurations.

Part Context

The AD7224 series comprises precision 8-bit voltage-output DACs fabricated using LC2MOS technology. The LPZ variant specifically denotes the commercial/industrial temperature grade (-40°C to +85°C) with enhanced accuracy specifications compared to the K version. This model belongs to a family offering various package options including DIP, SOIC, and Cerdip to suit different PCB layout requirements.

Replacement Considerations

The AD7224LN serves as a compatible alternative within the same series, sharing identical electrical characteristics and temperature range but differing only in the plastic DIP package option.