HI3-5047A-5

Overview

The HI3-5047A-5 is a dual single-pole single-throw (SPST) analog switch manufactured by Harris Corporation using CMOS technology. It features two independent channels within a single package, designed for signal routing applications. The device operates with a nominal supply voltage of ±15 V and supports a wide range of input signal voltages. Key electrical specifications include a maximum on-resistance of 50 Ω and a typical off-isolation of 70 dB at 1 MHz. It is housed in a 16-pin plastic dual in-line package (PDIP) and is rated for commercial extended temperature operation.

Feature Summary

• Dual-channel architecture providing two independent SPST switches in one package
• CMOS construction ensuring low power consumption and high input impedance
• Dielectric isolation processing to prevent latch-up during switching events
• TTL and CMOS logic compatibility for versatile interface integration

Applications

• Signal multiplexing and demultiplexing in data acquisition systems
• Audio and video signal routing in communication equipment
• Instrumentation front-end switching for sensor arrays
• Test and measurement equipment requiring isolated signal paths

Procurement Notes

Verify the manufacturer origin as Harris Corporation or its authorized successors such as Intersil or Renesas, given historical corporate acquisitions. Confirm the specific suffix 'A' denotes the correct temperature grade and pin configuration. Ensure the component meets the required lead-free or RoHS status if mandated by the end application, noting that older Harris parts may not be compliant. Request full datasheets to validate the on-resistance and leakage current parameters against system requirements.

Selection Notes

Select this component when dual independent switching is required without consuming multiple IC footprints. Compare the 50 Ω on-resistance against load requirements to ensure acceptable voltage drop. Verify that the ±15 V supply capability aligns with the available power rails. Consider the PDIP16 package for through-hole assembly processes. Evaluate the 70 dB isolation performance to determine suitability for sensitive analog signals where crosstalk must be minimized.

Part Context

The HI3-5047A-5 belongs to the HI-504x series of analog switches, which are widely used in mixed-signal circuits. This series is characterized by its use of dielectric isolation technology, a key feature of Harris's CMOS process at the time. The part serves as a bridge between digital control logic and analog signal paths, offering robust performance in industrial and commercial environments.

Replacement Considerations

Check for equivalents from Intersil or Renesas, as these entities acquired Harris's semiconductor assets. Verify pinout compatibility with other HI-504x variants like the HI-5048 or HI-5049, noting differences in on-resistance and isolation specs. Ensure any substitute maintains the same PDIP16 package and CMOS logic compatibility.