AD669BNZ

Overview

The AD669BNZ is a monolithic 16-bit Digital-to-Analog Converter (DAC) manufactured by Analog Devices Inc. utilizing BiMOS II technology to integrate low-power CMOS logic with high-precision bipolar linear circuits on a single chip. It features an internal current switch, decoding logic, output amplifier, embedded Zener reference, and dual-buffered latch. The device accepts parallel 16-bit data inputs and supports update rates up to 167 kSps. Key electrical specifications include a settling time of 6 µs, a signal-to-noise ratio (SNR) of 83 dB, and power dissipation of 625 mW. It operates within an analog supply range of 13.5 V to 16.5 V and a digital supply of 4.5 V to 5.5 V, housed in a 28-pin PDIP package.

Feature Summary

• 16-bit resolution with ±1 LSB DNL/INL linearity errors
• Embedded high-stability Zener voltage reference
• Dual-buffered latch structure for synchronized multi-DAC updates
• Parallel interface with fast 40 ns write pulse capability

Applications

• High-resolution industrial process control systems
• Precision test and measurement instrumentation
• Medical imaging equipment requiring accurate analog signal generation
• Multi-channel DAC systems requiring synchronous updates

Procurement Notes

Verify the specific suffix 'BNZ' corresponds to the through-hole PDIP-28 package variant when sourcing. Confirm RoHS compliance status via the manufacturer's official documentation or authorized distributor datasheets prior to procurement. Ensure the analog supply voltage requirements (13.5 V to 16.5 V) are compatible with the system design.

Selection Notes

Select the AD669BNZ for applications requiring 16-bit accuracy with parallel interfacing. Compare against the AD669BRZ if surface-mount SOIC packaging is preferred instead of the through-hole PDIP option. Verify that the 167 kSps update rate meets the system bandwidth requirements. Ensure the 6 µs settling time is sufficient for the intended application speed.

Part Context

The AD669 series represents Analog Devices' legacy high-performance monolithic DACs. The AD669BNZ specifically denotes the commercial grade version in a 28-lead plastic DIP package. It belongs to the broader family of precision data converters designed for applications demanding high linearity and stability without external component complexity.

Replacement Considerations

The AD669BRZ is the direct pin-compatible alternative offering identical electrical performance in a surface-mount SOIC-28 package. No other cross-model substitutes are confirmed in the provided documentation.