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ADG451BN

ADG451BN Description

The ADG451BN is a high-performance, single-pole, single-throw (SPST) normally closed (NC) analog switch designed by Analog Devices Inc. This obsolete but highly regarded component features four independent circuits, each offering an on-state resistance (R_on) of up to 5 ohms. The ADG451BN is housed in a through-hole package, specifically a tube, making it suitable for applications requiring robust mechanical stability and ease of integration into printed circuit boards (PCBs).

ADG451BN Features

• Low Leakage Current: The ADG451BN boasts a maximum leakage current (I_s(off)) of 500 pA, ensuring minimal power consumption and signal degradation when the switch is off.
• Wide Supply Voltage Range: It operates on a dual supply voltage range of ±4.5V to ±20V and a single supply voltage of 12V, providing flexibility for various power supply configurations.
• Channel-to-Channel Matching: With a channel-to-channel matching (ΔR_on) of 100 mOhm, the ADG451BN ensures consistent performance across all four circuits, crucial for applications requiring high precision.
• Low Channel Capacitance: The channel capacitance (C_s(off), C_d(off)) is rated at 37 pF for both source and drain, minimizing signal distortion and ensuring fast switching times.
• Fast Switching Times: The switch time (T_on, T_off) is maximized at 180 ns and 140 ns respectively, enabling rapid signal routing and efficient operation in high-speed applications.
• Minimal Charge Injection: Charge injection is limited to 20 pC, reducing transient effects on the signal path and maintaining signal integrity.
• Moisture Sensitivity Level: The ADG451BN has a moisture sensitivity level (MSL) of 1, indicating it is not sensitive to moisture and can be stored without special precautions.
• Compliance and Packaging: The ADG451BN complies with ECCN EAR99 and HTSUS 8542.39.0001, ensuring it meets international trade regulations. It is packaged in a tube, facilitating easy handling and storage.

ADG451BN Applications

The ADG451BN is ideal for a variety of applications where precision signal routing and low on-state resistance are critical. Its key applications include:

• Data Acquisition Systems: The low on-state resistance and fast switching times make it suitable for routing analog signals in data acquisition systems, ensuring minimal signal loss and high fidelity.
• Telecommunications: In telecom equipment, the ADG451BN can be used for signal switching in base stations and other communication infrastructure, providing reliable and efficient signal management.
• Medical Equipment: For medical devices requiring precise signal handling, such as ECG machines and diagnostic equipment, the ADG451BN ensures accurate signal transmission and minimal interference.
• Industrial Control Systems: In industrial automation, the ADG451BN can be used for switching control signals, ensuring robust and reliable operation in harsh industrial environments.

Conclusion of ADG451BN

The ADG451BN, despite being obsolete, remains a valuable component in the electronics industry due to its superior performance characteristics and reliability. Its low leakage current, wide supply voltage range, and fast switching times make it an excellent choice for applications requiring high precision and efficiency. While newer alternatives may be available, the ADG451BN continues to be a preferred option for engineers and designers who prioritize proven performance and compatibility.