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ADG739BRU

ADG739BRU Description

The ADG739BRU is a high-performance, low-power analog switch designed by Analog Devices Inc. This IC features a SP4T (Single Pole, Four Throw) switch circuit with two independent 4:1 multiplexer/demultiplexer circuits, making it suitable for a wide range of signal routing applications. The ADG739BRU operates from a single supply voltage ranging from 2.7V to 5.5V and is housed in a 16-lead TSSOP package, ideal for surface mount applications. Despite its obsolete status, the ADG739BRU remains a reliable choice for applications requiring low on-state resistance, low leakage current, and high bandwidth.

ADG739BRU Features

• Low On-State Resistance: The ADG739BRU boasts a maximum on-state resistance of 4.5Ω, ensuring minimal signal attenuation and power loss, which is crucial for maintaining signal integrity in high-frequency applications.
• Low Leakage Current: With a maximum leakage current of 100pA, the ADG739BRU minimizes unwanted signal interference, making it suitable for sensitive analog signal processing.
• High Bandwidth: The -3dB bandwidth of 100MHz allows the ADG739BRU to handle high-frequency signals efficiently, making it ideal for applications requiring fast signal switching.
• Low Charge Injection: The charge injection is limited to 3pC, which helps in reducing transient disturbances during switching, ensuring stable and reliable signal transmission.
• Fast Switching Times: The ADG739BRU offers typical turn-on and turn-off times of 20ns and 10ns, respectively, enabling rapid signal routing and efficient system performance.
• Low Channel Capacitance: The channel capacitance values of 13pF (CS(off)) and 42pF (CD(off)) contribute to the device's high-speed performance by minimizing capacitive loading effects.
• Moisture Sensitivity Level: The ADG739BRU has an MSL rating of 1 (Unlimited), indicating it is robust against moisture, which is beneficial for applications in humid environments.
• Supply Voltage Range: The wide supply voltage range of 2.7V to 5.5V provides flexibility in system design, allowing the ADG739BRU to be used in various power supply configurations.

ADG739BRU Applications

The ADG739BRU is well-suited for a variety of applications due to its robust performance and versatile features. Some specific use cases include:

• Signal Routing in Communication Systems: The high bandwidth and fast switching times make the ADG739BRU ideal for routing high-frequency signals in communication systems, ensuring minimal signal degradation.
• Audio Signal Processing: The low on-state resistance and low leakage current are beneficial for audio applications, where signal purity and low distortion are critical.
• Data Acquisition Systems: The ADG739BRU can be used to multiplex/demultiplex signals in data acquisition systems, enabling efficient signal processing and analysis.
• Medical Equipment: The device's reliability and low charge injection make it suitable for medical applications where signal integrity and patient safety are paramount.
• Industrial Control Systems: The ADG739BRU's robustness against moisture and wide supply voltage range make it ideal for industrial environments where conditions can be harsh.

Conclusion of ADG739BRU

The ADG739BRU, despite being obsolete, remains a valuable component in the electronics industry due to its superior performance characteristics. Its low on-state resistance, low leakage current, and high bandwidth make it an excellent choice for applications requiring high signal integrity and fast switching. The ADG739BRU's versatility in handling a wide range of supply voltages and its robustness against moisture further enhance its appeal. While newer alternatives may exist, the ADG739BRU continues to be a reliable option for designers seeking a high-performance analog switch in their systems.