Analog Devices AD2S81AJD Precision Resolver-to-Digital Converter

The AD2S81AJD from Analog Devices Inc. is a high-performance resolver-to-digital converter that offers reliable and accurate position and velocity data. Designed for demanding industrial and military applications, this integrated circuit provides a complete solution for converting resolver signals into a digital format that can be easily interfaced with microprocessors and digital systems.

At the core of the AD2S81AJD is a Type II tracking converter that ensures high tracking rates and a wide dynamic range. This makes it an ideal choice for applications where quick response times and precise measurements are essential, such as in servo control systems, robotics, and avionics. The converter can track resolver speeds up to 1040 revs per second, providing real-time feedback for high-speed operations.

With an accuracy of up to 10 arc minutes and a resolution of 10, 12, 14, or 16 bits, depending on the clock frequency used, the AD2S81AJD delivers precise angular measurements. This level of precision is critical in applications where even small errors can lead to significant performance issues or safety concerns.

The AD2S81AJD also features an internal oscillator that simplifies the design by eliminating the need for an external excitation source for the resolver. This built-in oscillator can be set to frequencies of 2kHz, 4kHz, 8kHz, or 10kHz, providing flexibility to match the requirements of different resolver types and applications.

For enhanced reliability, the AD2S81AJD includes fault detection capabilities that can identify issues such as loss of resolver signals or out-of-range input frequencies. This self-diagnostic feature helps prevent system failures and ensures consistent operation over time.

Available in a 44-lead ceramic DIP (CDIP) package, the AD2S81AJD is designed to withstand harsh environments and is rated for a wide operating temperature range of -55°C to +125°C. Its robust construction and proven performance make it a trusted choice for engineers looking to integrate resolver-to-digital conversion into their designs.

Overall, the AD2S81AJD from Analog Devices Inc. represents a reliable, accurate, and versatile solution for converting resolver signals into digital data, enabling precise control and measurement in a variety of sophisticated applications.