AD667JP-REEL

Overview

The AD667JP-REEL is a 12-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It features a voltage output type with a parallel interface and operates on dual analog supply voltages ranging from 11.4 V to 16.5 V, alongside a 5 V digital supply. The device integrates an internal reference and utilizes a double-buffered input latch structure for microprocessor compatibility. Key electrical parameters include a settling time of 3 µs at 0.01% accuracy, differential nonlinearity of ±0.5 LSB, and integral nonlinearity of ±0.25 LSB. It consumes 8 mA of operating current and dissipates up to 1 W of power.

Feature Summary

• 12-bit resolution with integrated high-stability embedded Zener reference voltage source
• Double-buffered input latch structure compatible with TTL and 5V CMOS logic levels
• Fast settling time of 3 µs (to 0.01%) with guaranteed monotonicity over temperature
• Low power consumption of 8 mA operating current

Applications

• Microprocessor interfaces requiring direct bus connection
• Industrial control systems
• Aerospace applications

Procurement Notes

Verify component authenticity as the AD667 series includes discontinued variants. Confirm the specific suffix 'JP' corresponds to the PLCC-28 package and commercial/industrial temperature range if applicable, though datasheets often list military ranges for the base part. Check for RoHS compliance status as older ADI parts may not meet current standards. Ensure the reel packaging matches production requirements.

Selection Notes

Select this component when a complete 12-bit DAC with internal reference and buffer is required. The double-buffered architecture simplifies interfacing with 4-bit, 8-bit, 12-bit, or 16-bit microprocessors. Consider the 28-pin PLCC package for surface mount applications. Verify that the ±12V to ±15V supply requirement fits the system design, as it differs from single-supply modern DACs.

Part Context

The AD667 is a legacy monolithic voltage-output DAC from Analog Devices. The 'JP' suffix typically denotes a plastic leaded chip carrier (PLCC) package variant. The '-REEL' suffix indicates tape-and-reel packaging for automated assembly. This part belongs to a family where performance grades like J, K, S, A, and B define linearity and temperature specifications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Many variants in the AD667 family are marked as obsolete or discontinued. Designers should verify end-of-life status before implementation.