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ADG444BR

ADG444BR Description

The ADG444BR from Analog Devices Inc. is a high-performance, quad SPST (Single-Pole Single-Throw) analog switch designed for precision signal routing in demanding applications. Housed in a 16-SOIC package, this obsolete but reliable IC offers low on-resistance (70Ω max) and ultra-low leakage current (500pA max), making it suitable for high-accuracy systems. It operates with dual supply voltages (±15V) or a single supply (12V), providing flexibility in various circuit designs. With 4pF channel capacitance and minimal charge injection (1pC), the ADG444BR ensures minimal signal distortion, critical for high-frequency and sensitive analog applications.

ADG444BR Features

• Low On-Resistance: 70Ω max ensures minimal signal attenuation.
• Ultra-Low Leakage: 500pA max for high-precision signal integrity.
• Fast Switching: 110ns (Ton), 60ns (Toff) for dynamic signal routing.
• Low Charge Injection: 1pC reduces glitches in sampled-data systems.
• Dual/Single Supply Operation: Supports ±15V or 12V for versatile integration.
• Low Capacitance: 4pF (CS/CD off) minimizes crosstalk in multiplexed systems.
• Robust Packaging: 16-SOIC with MSL1 (Unlimited) moisture sensitivity for reliable handling.

ADG444BR Applications

• Test & Measurement Equipment: Precision signal switching in ATE systems.
• Data Acquisition Systems: Low-distortion multiplexing for ADC/DAC interfaces.
• Medical Instrumentation: High-accuracy signal routing in diagnostic devices.
• Audio/Video Switching: Low-noise signal paths in professional AV systems.
• Industrial Control Systems: Reliable switching in harsh environments.

Conclusion of ADG444BR

The ADG444BR excels in applications demanding low noise, fast switching, and high precision, despite its obsolete status. Its low on-resistance, minimal charge injection, and dual-supply flexibility make it a standout choice for legacy designs or systems requiring robust analog switching. While newer alternatives exist, the ADG444BR remains a proven solution for engineers prioritizing signal fidelity and reliability in critical analog circuits.