ISL43L840IV

Analog Switches, Multiplexers, Demultiplexers Overview

The ISL43L840IV is a dual-channel analog switch manufactured by Renesas Electronics Corporation, housed in a 16-TSSOP surface-mount package. It functions as two independent SP4T (Single Pole Four Throw) switches, providing four-to-one multiplexing capability per channel. The device operates on a single supply voltage ranging from 1.6V to 3.6V. Key electrical specifications include a maximum on-resistance of 750 milliohms and a channel-to-channel matching tolerance of 120 milliohms. Leakage current is limited to a maximum of 4nA, with a charge injection of -96pC and off-state capacitance of 62pF. Crosstalk is rated at -100dB at 100kHz. The component supports an operating temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual-channel architecture enabling independent control of two separate SP4T switching paths within a single integrated circuit.
• Low on-resistance characteristic ensuring minimal signal attenuation across the conductive path during active switching states.
• Ultra-low leakage current performance suitable for high-impedance signal routing applications requiring precise isolation.
• Compact 16-pin thin-shrink small-outline package design facilitating dense printed circuit board layout integration.

Analog Switches, Multiplexers, Demultiplexers Applications

• Signal routing in portable consumer electronics requiring low-voltage operation
• Multiplexing inputs for data acquisition systems
• Audio signal switching in battery-powered devices

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to discontinued status. Confirm RoHS compliance requirements as the specific part may not meet current environmental standards. Validate package integrity upon receipt to ensure pin alignment matches the 16-TSSOP specification before soldering.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when dual independent 4:1 switching is required within a constrained footprint. Ensure the system supply voltage remains within the 1.6V to 3.6V operational window. Consider the 750mΩ on-resistance limit for signal integrity requirements. Verify thermal management capabilities align with the -40°C to +85°C ambient operating range.

Analog Switches, Multiplexers, Demultiplexers Part Context

This device belongs to the ISL43L840 family of analog switches. It serves as a specialized solution for multi-channel signal selection in compact electronic designs. The dual SP4T configuration distinguishes it from simpler single-pole variants, offering enhanced connectivity options for complex signal paths without increasing board space.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Renesas Electronics technical support for validated cross-reference recommendations compatible with the 16-TSSOP package and SP4T functionality.