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ADG432BR

ADG432BR Description

The ADG432BR from Analog Devices Inc. is a high-performance, 4-channel SPST (Single-Pole Single-Throw) analog switch designed for precision signal routing in demanding applications. Housed in a 16-pin SOIC package, this obsolete but robust IC features low on-resistance (24Ω max) and minimal leakage current (250pA max), ensuring high signal integrity. It supports dual (±15V) and single (12V) supply voltages, making it versatile for mixed-voltage systems. With fast switching times (90ns Ton, 60ns Toff) and low charge injection (5pC), the ADG432BR minimizes distortion in high-speed or sensitive analog circuits. Its 1.2Ω channel-to-channel matching and low capacitance (9pF off-state) further enhance performance in multiplexing/demultiplexing tasks.

ADG432BR Features

• Low On-Resistance: 24Ω max reduces signal attenuation.
• Ultra-Low Leakage: 250pA max ensures minimal power loss.
• Fast Switching: 90ns/60ns (Ton/Toff) for high-speed applications.
• Dual-Supply Operation: ±15V or 12V single-supply compatibility.
• Low Charge Injection: 5pC minimizes glitches in precision systems.
• Channel Matching: 1.2Ω ΔRon for consistent signal paths.
• Low Capacitance: 9pF (CS/CD off) reduces crosstalk.
• 4-Channel SPST Configuration: Ideal for 1:1 signal routing.

ADG432BR Applications

The ADG432BR excels in:

• Test & Measurement Equipment: High-accuracy signal switching in oscilloscopes or data acquisition systems.
• Audio/Video Routing: Low-distortion signal paths in professional AV systems.
• Medical Instrumentation: Precision switching in ECG or ultrasound devices.
• Industrial Automation: Reliable multiplexing for sensor arrays or PLCs.
• Battery-Powered Systems: Low leakage extends battery life in portable devices.

Conclusion of ADG432BR

While obsolete, the ADG432BR remains a standout for precision analog switching due to its low RON, fast switching, and excellent channel matching. Its dual-supply capability and low parasitic effects make it ideal for high-performance systems where signal fidelity is critical. Engineers seeking legacy replacements should consider its balance of speed, accuracy, and power efficiency for niche applications.