HI3-5049-5

Overview

The HI3-5049-5 is a dual single-pole single-throw (SPST) analog switch manufactured by Harris Corporation, housed in a 16-pin PDIP package. It operates with a maximum clock frequency of 16 MHz and supports asynchronous communication protocols. The device features CMOS technology and provides a nominal on-resistance of 25Ω for signal currents up to 80mA. It offers break-before-make switching and is compatible with TTL and CMOS logic levels. The component ensures latch-free operation through dielectric isolation processing.

Feature Summary

• Dual SPST configuration providing two independent switching channels within a single package
• Dielectric isolation processing to ensure latch-free operation and low leakage current
• TTL and CMOS compatibility for versatile integration into digital control systems
• Break-before-make switching action to prevent signal shorting during channel transitions

Applications

• Signal routing in data acquisition systems
• Multiplexing applications requiring isolated signal paths
• Test and measurement equipment signal selection
• Communication interface switching circuits

Procurement Notes

Verify the manufacturer origin as Harris Corporation or its successors such as Intersil or Renesas, as corporate acquisitions may affect part marking. Confirm the specific suffix '-5' denotes the correct temperature range and packaging variant. Ensure compliance with RoHS directives if required, noting that older Harris parts may not be certified. Request detailed datasheets to validate electrical parameters against current design requirements.

Selection Notes

Select this component when dual isolated analog switching is required with low on-resistance stability. Consider the 16-pin DIP package for prototyping or through-hole assembly needs. Evaluate the 25Ω on-resistance and 80mA current capability against load requirements. Verify voltage supply compatibility with the system's positive and negative rails, typically ±15V for optimal performance.

Part Context

The HI3-5049-5 belongs to the HI-5040 through HI-5051 series of analog switches from Harris Corporation. This family includes various configurations of single and dual SPST switches designed for high-performance analog signal routing. The series is known for its dielectric isolation technology and compatibility with standard digital logic families, making it suitable for mixed-signal applications.

Replacement Considerations

Potential substitutes include other dual SPST analog switches from the same HI-50xx series, such as the HI-5048 or HI-5050, provided pinouts and electrical characteristics match. Verify functional equivalence regarding on-resistance, leakage current, and switching speed before substitution.