AD667JN/+

Overview

The AD667JN is a complete voltage output 12-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It integrates a high-stability buried Zener voltage reference and a double-buffered input latch on a single chip. The device utilizes 12 precision high-speed bipolar current steering switches and a laser-trimmed thin-film resistor network to achieve fast settling times and high accuracy. It operates with TTL/5 V CMOS compatible logic inputs and requires dual power supplies ranging from ±11.4 V to ±16.5 V. Key electrical specifications include a maximum linearity error of ±1/2 LSB over the temperature range, a typical settling time of 3 μs to 0.01% for full-scale range changes, and an operating temperature specification of 0°C to +70°C.

Feature Summary

• Complete 12-bit DAC function with integrated high-stability buried Zener reference and double-buffered input latch
• Laser-trimmed thin-film resistor network ensures monotonicity and guaranteed linearity over the full temperature range
• TTL/5 V CMOS compatible logic inputs with low logic input currents
• Voltage output architecture with selectable ranges including ±10 V, ±5 V, ±2.5 V, 0-10 V, and 0-5 V

Applications

• Microprocessor-compatible systems requiring precise analog signal generation
• Industrial control applications utilizing ±12 V or ±15 V supply rails
• Data acquisition systems needing buffered voltage outputs with low drift

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as historical data indicates non-compliance for this specific part number variant. Check for military screening requirements if MIL-STD-883B compliance is necessary for the application environment.

Selection Notes

Select the AD667JN when a plastic DIP-28 package is required for through-hole mounting. This grade offers a maximum gain temperature coefficient of 30 ppm/°C and a linearity error of ±1/2 LSB. Ensure the design accommodates the specified ±12 V or ±15 V dual power supply configuration and interfaces correctly with 8-bit, 12-bit, or 16-bit microprocessor buses using the provided address decoding scheme.

Part Context

The AD667 series comprises various grades differentiated by temperature range, linearity accuracy, and packaging. The JN variant specifically denotes the commercial temperature range (0°C to +70°C) housed in a 28-pin Plastic DIP package. Other variants include the KN for higher accuracy, and AD/BD/SD/SE for extended industrial or military temperature ranges in ceramic or LCC packages.

Replacement Considerations

Direct replacement options within the same family include the AD667JP (PLCC package) or AD667KNZ (Plastic DIP, higher accuracy). Verify pin compatibility and thermal performance characteristics before substituting.