DG528CY

Overview

The DG528CY is a high-speed, single-channel analog switch manufactured by Harris Corporation. It utilizes CMOS technology to provide low on-resistance and fast switching times for signal routing applications. The device operates within a wide supply voltage range, supporting dual supplies from ±5V to ±15V or a single supply up to 30V. It features TTL-compatible control inputs, allowing direct interfacing with standard logic families. The component is housed in a 16-lead DIP package, designed for through-hole mounting. Key electrical characteristics include an on-resistance of typically 10 ohms and an off-isolation exceeding 70 dB at DC. The operating temperature range extends from -55°C to +125°C, ensuring reliability in industrial environments.

Feature Summary

• Single-channel SPST configuration for precise signal path selection
• TTL-compatible control inputs for seamless logic integration
• Low on-resistance for minimal signal attenuation
• Wide dual or single supply voltage operation

Applications

• Data acquisition systems requiring multiplexing
• Audio signal routing and switching
• Instrumentation front-end signal conditioning
• Telecommunications equipment signal paths

Procurement Notes

Verify the manufacturer origin carefully, as Harris Corporation's semiconductor assets were acquired by Analog Devices. Ensure the specific suffix 'CY' matches the required ceramic DIP package and military/industrial temperature grade. Confirm RoHS compliance status if required for modern manufacturing processes, as original Harris parts may predate these regulations. Request detailed datasheets from authorized distributors to validate pinout and electrical specifications against current design requirements.

Selection Notes

Select the DG528CY when a single channel with low on-resistance and TTL compatibility is needed. Compare against the DG528AJ if higher precision or lower leakage is required. Consider the package type; the CY suffix denotes a ceramic DIP, which offers better thermal stability than plastic variants. Verify that the supply voltage range aligns with the system's power rails. Check for alternative sources if original Harris inventory is unavailable due to legacy status.

Part Context

The DG528 series belongs to Harris Corporation's line of high-performance analog switches. These devices were widely used in professional audio and test equipment before the company's semiconductor division was absorbed into Analog Devices. The DG528 specifically offers a balance of speed and low distortion, making it suitable for general-purpose analog signal switching tasks in demanding environments.

Replacement Considerations

Analog Devices ADG528 is a direct functional replacement with updated manufacturing. Other compatible alternatives include the MAX458 or TS5A3166 for similar SPST functionality. Verify pin compatibility and electrical parameters such as on-resistance and leakage current before substitution. Ensure the replacement package matches the PCB footprint.