HI-8191PSIF

Analog Switches, Multiplexers, Demultiplexers Overview

The HI-8191PSIF is a quad single-pole single-throw (SPST) analog switch manufactured by Holt Integrated Circuits Inc. utilizing Insulator on Silicon (SOI) technology for robust performance in harsh environments. It operates within a temperature range of -55°C to 200°C and supports supply voltages from 3.0V to 5.5V. The device features an internal charge pump enabling +/-12V switching ranges, low off-state leakage below 10nA, and typical on-resistance of 8 ohms.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Constructed with rugged SOI technology ensuring latch-up immunity and low off-state leakage.
• Integrated onboard charge pump generates high voltage gate drive from a single low-voltage supply.
• Capable of operating at extended temperatures up to 200 degrees Celsius.

Analog Switches, Multiplexers, Demultiplexers Applications

• High-temperature avionics systems
• Oil exploration and down-hole drilling equipment
• Data bus isolation circuits

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix PSIF against official manufacturer documentation to confirm package type and material specifications. Ensure compatibility with required thermal management solutions given the 200°C maximum operating limit. Confirm RoHS compliance status as historical data indicates mixed compliance levels across similar product lines.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when high-temperature resilience and low leakage are critical requirements. The integrated charge pump simplifies power design by eliminating external high-voltage generation components. Verify that the 8-ohm on-resistance meets system signal integrity needs for the intended voltage range.

Analog Switches, Multiplexers, Demultiplexers Part Context

Holt Integrated Circuits specializes in military, aerospace, and industrial data bus communication ICs. This analog switch belongs to a family designed for embedded applications requiring reliable signal routing under extreme conditions, complementing their ARINC 429 and MIL-STD-1553 product lines.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Consult official substitution guides for verified equivalents. Generic analog switches may not support the 200°C operating temperature or SOI latch-up protection required for these specific applications.