STMicroelectronics

STG3220QTR  

Analog Switches, Multiplexers, Demultiplexers

STG3220QTR Description

The STG3220QTR is a high-performance analog switch designed by STMicroelectronics, featuring a SPDT (Single Pole Double Throw) switch circuit with two independent channels. This interface IC chip is optimized for applications requiring low on-state resistance and fast switching times. Despite being as marked obsolete, the STG3220QTR remains a reliable choice for engineers seeking a robust and efficient switching solution.

STG3220QTR Features

• Low On-State Resistance: The STG3220QTR boasts a maximum on-state resistance (Ron) of 5.4 Ohms, ensuring minimal power loss and high efficiency in signal transmission.
• Fast Switching Times: With a switch time of 15ns for turn-on (Ton) and 13ns for turn-off (Toff), the STG3220QTR offers rapid switching capabilities, making it suitable for high-speed applications.
• Low Leakage Current: The maximum leakage current (IS(off)) is only 20nA, which is crucial for maintaining signal integrity and reducing power consumption in low-power systems.
• Channel Matching: The channel-to-channel matching (ΔRon) is tightly controlled at 100mOhm, ensuring consistent performance across both channels.
• Low Channel Capacitance: The channel capacitance (CS(off), CD(off)) is a mere 2pF, contributing to the device's high-frequency performance and minimal signal distortion.
• Wide Supply Voltage Range: The STG3220QTR operates within a supply voltage range of 1.65V to 4.3V, providing flexibility in various power supply configurations.
• High Bandwidth: The -3dB bandwidth of 800MHz makes it ideal for high-frequency signal routing and processing.
• Compliance and Packaging: The device is REACH unaffected and RoHS3 compliant, ensuring environmental safety. It is packaged in a 10-QFN (Tape & Reel) format, suitable for surface mount applications and easy integration into modern PCB designs.

STG3220QTR Applications

The STG3220QTR is well-suited for a variety of applications where high-speed signal switching and low power consumption are critical. Some specific use cases include:

• High-Speed Data Communication: Ideal for switching between different data channels in high-speed communication systems, ensuring minimal signal degradation.
• Audio Signal Routing: Suitable for audio applications where low on-state resistance and low leakage current are essential for maintaining audio quality.
• RF Signal Processing: The high bandwidth and low channel capacitance make it suitable for RF signal routing and processing applications.
• Medical Equipment: The low leakage current and high reliability make it a good fit for medical devices where signal integrity patient and safety are paramount.
• Industrial Control Systems: The robustness and flexibility of the STG3220QTR make it suitable for industrial applications requiring reliable signal switching and processing.

Conclusion of STG3220QTR

The STG3220QTR, despite being obsolete, remains a valuable component in the electronics industry due to its superior technical specifications and performance benefits. Its low on-state resistance, fast switching times, and high bandwidth make it an ideal choice for applications requiring high efficiency and minimal signal distortion. The device's compliance with environmental standards and its surface mount packaging further enhance its suitability for modern electronic designs. For engineers looking for a reliable and efficient analog switch, the STG3220QTR is a strong contender, offering unique advantages over similar models.

STG3220QTR Documents

Download datasheets and manufacturer documentation for STG3220QTR

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STG3220      

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