The ADG749 is a low power, high speed, high precision, low leakage current monolithic CMOS SPDT switch.
The ADG749 is a monolithic CMOS SPDT switch offered in a 6‑lead SC70 package. It supports single‑supply operation from 1.8 V to 5.5 V, making it suitable for battery‑powered instruments and a wide range of communication, audio, video and sampling applications. Key features include low on‑resistance, fast switching times, rail‑to‑rail operation and an automotive temperature range.
The datasheet provides detailed electrical specifications, absolute maximum ratings, pin configuration, typical performance curves, and test circuit descriptions. It also includes ordering information and application notes for designers who need a compact, low‑power analog switch.
| Supply Voltage Range | 1.8 V to 5.5 V |
|---|---|
| Maximum On‑Resistance (Ron) | 5 Ω |
| On‑Resistance Flatness | 0.75 Ω typ |
| -3 dB Bandwidth | >200 MHz |
| Turn‑On Time (ton) | 12 ns typ |
| Turn‑Off Time (torr) | 6 ns typ |
| Source Off Leakage Current | 0.01 nA typ |
| Power Dissipation (SC70 package) | 315 mW |
The ADG749 operates from 1.8 V to 5.5 V with a single supply.
Turn‑on time is about 12 ns and turn‑off time about 6 ns.