ADG333A is a quad SPDT switch chip produced by Analog Devices. The chip works at a voltage of 44V and supports VSS to VDD analog signals. The switching time of the switch chip is tON<175ns, tOFF<145ns, and the switching loss is 5nA. ADG333A can be applied to audio and video switching, battery-powered systems, test equipment and communication systems.
The ADG333A is a monolithic CMOS quad SPDT analog switch designed for low power dissipation and high switching speed. It offers a flat on‑resistance profile across the full analog input range, providing good linearity for audio and video signals. The device can operate from either dual (+15 V/‑15 V) or single (+12 V/0 V) supplies and includes break‑before‑make switching for multiplexing applications.
Typical applications include audio and video switching, battery‑powered instruments, test equipment, and communication systems. The part is available in PDIP, SOIC, and SSOP packages, and features low leakage currents, low charge injection, and ESD protection.
| Dual‑supply voltage range | Vop = +15 V, Vss = -15 V |
|---|---|
| Single‑supply voltage range | Vop = +12 V, Vss = 0 V |
| On‑resistance (dual supply) | 45 Ω max |
| Source OFF leakage current | 0.1 nA typ |
The maximum Vop‑to‑Vss voltage is +44 V.
Turn on Vop first, then Vss, and finally the logic signals.
The on‑resistance is specified as 45 Ω max.