QS4A110QG8

Overview

The QS4A110QG8 is a high-performance CMOS analog switch manufactured by Renesas Electronics Corporation. It integrates two independent single-pole five-throw (5PST) normally open switches within a single integrated circuit. The device operates on a single 5V power supply and features a maximum on-resistance of 17 ohms. Key electrical specifications include a -3dB bandwidth of 1.8GHz, a charge injection of 1.5pC, and an off-state leakage current of 1nA. Switching times are specified with a maximum turn-on time of 6.5ns and a turn-off time of 6ns. The component is housed in a 24-QSOP surface-mount package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Dual-channel architecture providing two independent 5PST switching paths for signal routing
• High-frequency performance capability suitable for video and audio signal applications
• Ultra-low quiescent current consumption designed for battery-operated systems
• Bidirectional TTL-compatible control inputs for straightforward logic interfacing

Applications

• High-performance video signal switching matrices
• Audio signal routing and distribution networks
• Telecommunications equipment signal routing
• Remote instrumentation signal conditioning

Procurement Notes

Verify the current lifecycle status of the QS4A110QG8 before initiating procurement, as official distributor records indicate this specific part number may be classified as obsolete or end-of-life. Confirm availability through authorized channels or check for active replacement series if new production is required. Ensure that any sourced units match the original Renesas manufacturing specifications and packaging requirements.

Selection Notes

Select the QS4A110QG8 when designing circuits requiring dual 5PST switching with high bandwidth and low distortion. This component is appropriate for applications demanding low power dissipation and fast switching speeds under a single 5V supply. Consider the 24-QSOP package constraints and thermal characteristics during PCB layout. Evaluate alternative Renesas switch families if higher channel counts or different pin configurations are needed.

Part Context

The QS4A110 belongs to the QS4A series of high-speed analog switches from Renesas Electronics. This series is engineered for applications requiring minimal signal degradation and high isolation. The QS4A110 specifically addresses needs for multi-throw switching capabilities in compact packages. It complements other Renesas interface ICs by providing robust signal path management in mixed-signal environments.

Replacement Considerations

Official documentation lists the QS4A110QG8 as obsolete. Verify if newer Renesas product lines offer equivalent 5PST functionality with updated packaging or enhanced specifications. Cross-reference pinouts and electrical parameters carefully when considering substitute components to ensure compatibility with existing board designs.