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ADG774BRQ

ADG774BRQ Description

The ADG774BRQ 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 compact 16-QSOP package, this IC features low on-state resistance (2.2Ω typical) and ultra-low leakage current (500pA max), ensuring minimal signal distortion and power loss. Operating within a 3V to 5V supply range, it delivers 240MHz bandwidth and fast switching times (15ns turn-on, 8ns turn-off), making it ideal for high-speed data acquisition and signal processing systems. Though marked as obsolete, its robust design and low charge injection (10pC) continue to make it a reliable choice for legacy or specialized designs.

ADG774BRQ Features

• Low On-Resistance: 2.2Ω (typ) ensures minimal voltage drop and signal attenuation.
• High Bandwidth: 240MHz -3dB bandwidth supports high-frequency applications.
• Fast Switching: 15ns (Ton), 8ns (Toff) enables rapid signal routing.
• Low Leakage: 500pA max (IS(off)) reduces power waste and improves accuracy.
• Low Charge Injection: 10pC minimizes glitches in sensitive circuits.
• Quad SPDT Configuration: 4 independent switches in a single package save board space.
• Surface-Mount QSOP-16 Package: Compact and suitable for space-constrained designs.
• Wide Supply Range: 3V to 5V compatibility for flexible integration.

ADG774BRQ Applications

• Data Acquisition Systems: Precision signal routing with low distortion.
• Audio/Video Switching: High bandwidth ensures clean signal transmission.
• Test & Measurement Equipment: Fast switching and low leakage enhance accuracy.
• Battery-Powered Devices: Low power consumption extends operational life.
• Communication Systems: Reliable multiplexing/demultiplexing of high-speed signals.

Conclusion of ADG774BRQ

The ADG774BRQ excels in applications requiring low resistance, high speed, and precision signal integrity. While obsolete, its performance metrics—such as ultra-low leakage, fast switching, and high bandwidth—make it a strong candidate for legacy systems or niche designs where newer alternatives may not meet specific requirements. Its quad SPDT configuration and compact footprint further enhance its utility in space-constrained, high-performance electronics.