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ADG333ABR

ADG333ABR Description

The ADG333ABR from Analog Devices Inc. is a high-performance, quad SPDT (Single-Pole Double-Throw) analog switch designed for precision signal routing in demanding applications. Housed in a 20-SOIC package, this IC features low on-state resistance (45Ω max) and minimal leakage current (250pA max), ensuring high signal integrity. It operates over a wide supply voltage range (±3V to ±20V dual or 3V to 30V single), making it versatile for both low-voltage and industrial-level systems. With 4 independent switches per package, it offers excellent channel-to-channel matching (ΔRon = 5Ω) and low charge injection (2pC), critical for reducing distortion in sensitive analog circuits.

ADG333ABR Features

• Low On-Resistance: 45Ω max ensures minimal signal attenuation.
• Fast Switching: 90ns (Ton), 80ns (Toff) typ for high-speed applications.
• Low Leakage: 250pA max for precision signal handling.
• Wide Voltage Range: Supports ±3V to ±20V dual or 3V to 30V single supplies.
• Low Charge Injection: 2pC reduces glitches in sampled-data systems.
• High Channel Matching: ΔRon = 5Ω for consistent performance across channels.
• Low Capacitance: 7pF (CS(off), CD(off)) minimizes crosstalk.
• Robust Packaging: 20-SOIC tube packaging with MSL1 (Unlimited) moisture sensitivity.

ADG333ABR Applications

• Data Acquisition Systems: Ideal for multiplexing low-level analog signals with minimal distortion.
• Test & Measurement Equipment: High-speed switching ensures accurate signal routing.
• Audio/Video Signal Routing: Low charge injection preserves signal fidelity.
• Battery-Powered Devices: Operates efficiently at low voltages (3V).
• Industrial Automation: Reliable performance in harsh environments due to wide supply range.

Conclusion of ADG333ABR

The ADG333ABR stands out for its low on-resistance, fast switching, and exceptional signal integrity, making it a top choice for precision analog switching. While marked obsolete, its performance remains competitive for legacy designs or systems requiring high reliability. Its quad SPDT configuration and wide voltage range make it indispensable in data acquisition, test equipment, and industrial applications where accuracy and speed are paramount. Engineers seeking a proven, high-performance analog switch should consider the ADG333ABR for critical signal routing tasks.