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AD660AR

AD660AR Description

The AD660AR from Analog Devices Inc. is a high-precision 16-bit digital-to-analog converter (DAC) from the DACPORT® series, designed for demanding industrial and instrumentation applications. Housed in a 24-pin SOIC package, this surface-mount IC delivers voltage output with exceptional linearity (±4 LSB INL/DNL) and a fast 13µs settling time. It operates with a dual analog supply (±13.5V to 16.5V) and a 5V digital supply, ensuring compatibility with mixed-signal systems. The SPI-compatible serial interface simplifies integration, while its external/internal reference flexibility enhances design adaptability. Though now obsolete, its performance remains relevant for legacy systems requiring high-resolution analog output.

AD660AR Features

• 16-Bit Resolution: Delivers fine-grained analog output for precision applications.
• Low INL/DNL (±4 LSB): Ensures high accuracy and linearity across the full dynamic range.
• Dual-Supply Operation: ±13.5V to 16.5V (analog) and 5V (digital) for versatile power requirements.
• SPI Interface: Enables easy microcontroller interfacing with minimal pin count.
• Fast Settling Time (13µs): Suitable for dynamic signal generation and control loops.
• External/Internal Reference: Supports both modes for design flexibility.
• Surface-Mount (SOIC-24): Compact footprint for space-constrained PCB layouts.

AD660AR Applications

• Industrial Automation: Precision control systems, PLCs, and servo drives.
• Test & Measurement Equipment: Calibration sources, waveform generators, and data acquisition.
• Audio Processing: High-fidelity digital audio signal reconstruction.
• Legacy System Upgrades: Replacement or maintenance of older high-resolution DAC designs.
• Medical Instrumentation: Where 16-bit accuracy is critical (e.g., imaging, diagnostics).

Conclusion of AD660AR

The AD660AR stands out for its 16-bit precision, robust dual-supply operation, and SPI interface, making it ideal for high-accuracy analog output tasks. While obsolete, its low INL/DNL error and fast settling time ensure reliability in industrial, audio, and measurement systems. Engineers maintaining legacy designs or seeking proven performance in a compact form factor may still find this DAC valuable despite newer alternatives.