AD667JPZ

Overview

The AD667JPZ is a 12-bit monolithic digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It features an integrated high-stability embedded Zener reference voltage source and dual-buffered input latches, eliminating the need for external components in many applications. The device utilizes a laser-trimmed thin-film resistor network and bipolar current-steering switches to achieve a settling time of 3 µs to 0.01% accuracy. It operates on dual analog supply voltages ranging from ±11.4 V to ±16.5 V and a separate 5 V digital supply. The output is buffered voltage, compatible with TTL and 5V CMOS logic levels, housed in a 28-PLCC surface-mount package.

Feature Summary

• Integrated high-stability embedded Zener reference voltage source
• Dual-buffered input latch structure for microprocessor compatibility
• Laser-trimmed thin-film resistor network ensuring monotonicity
• Settling time of 3 µs to 0.01% accuracy

Applications

• Microprocessor interface systems
• Industrial control applications
• Aerospace instrumentation

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability variations. Confirm RoHS compliance status as indicated in official datasheets. Check for lead-free packaging specifications if required for assembly processes. Validate part number suffixes against current manufacturing updates to ensure functional equivalence with legacy versions.

Selection Notes

Select this component when a complete 12-bit DAC solution with internal reference is required to minimize board space. Ensure the design supports dual analog supplies within the ±11.4 V to ±16.5 V range and a 5 V digital logic level. Consider the 28-PLCC package dimensions for PCB layout constraints. Verify that the 3 µs settling time meets system speed requirements.

Part Context

The AD667 series represents a family of complete voltage-output DACs produced by Analog Devices. The 'JPZ' suffix specifically denotes the J-grade performance variant packaged in plastic leaded chip carrier (PLCC) format with lead-free termination. This model is part of a broader lineage including DIP and ceramic LCC packages, designed for precision data conversion tasks requiring high linearity and stability.

Replacement Considerations

The AD667JP is listed as a direct substitute for the AD667JPZ, differing primarily in termination material. Verify pinout compatibility and electrical parameter equivalence before substitution. Consult official documentation for any changes in mechanical dimensions or thermal characteristics between leaded and lead-free variants.