AD7248ATQ

Digital To Analog Converters Overview

The AD7248ATQ is a monolithic 12-bit voltage output digital-to-analog converter featuring an integrated output amplifier and buried Zener voltage reference. It utilizes LC2MOS technology for precision bipolar circuits combined with low-power CMOS logic. The device accepts parallel data via an 8-bit-wide bus loaded in two write operations, supporting microprocessor compatibility through high-speed data latches and double-buffered interface logic. It operates from single or dual supplies ranging from 12 V to 15 V, offering extended temperature performance from –55°C to +125°C.

Digital To Analog Converters Feature Summary

• 12-bit resolution with ±3/4 LSB relative accuracy at 25°C
• Integrated 5 V buried Zener reference and output amplifier
• Extended temperature range: –55°C to +125°C
• Single supply (12 V to 15 V) or dual supply operation

Digital To Analog Converters Applications

• Microprocessor-controlled instrumentation systems
• Industrial process control loops
• Portable battery-powered equipment requiring low power

Digital To Analog Converters Procurement Notes

Verify the ordering suffix 'TQ' corresponds to the Cerdip package and the –55°C to +125°C temperature grade as specified in the Analog Devices ordering guide. Confirm that MIL-STD-883 Class B processing requirements are met if applicable, as this specific grade may require adding '/883B' to the part number for availability.

Digital To Analog Converters Selection Notes

Select the AD7248ATQ when an 8-bit microprocessor interface is required, as it loads 12-bit data in two cycles. Choose this model over the AD7245A variant if the application demands the extended industrial temperature range (-55°C to +125°C) rather than the commercial range. Ensure the system power supply remains within the +10.8 V to +16.5 V range for specified performance.

Digital To Analog Converters Part Context

The AD7248ATQ is part of the AD7245A/AD7248A family, which serves as an enhanced version of the industry-standard AD7245/AD7248. Key improvements include operation from 12 V to 15 V supplies, faster interface times with a typical 30 ns data setup time, and improved linearity grades. The 'TQ' suffix denotes the ceramic DIP package suitable for the extended temperature variant.

Digital To Analog Converters Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.