The STG3820 is a low voltage high bandwidth quad DPDT switch produced by ST company. It features ultralow power dissipation, low ON resistance, wide operating voltage range, 4.3V tolerant and 1.8V compatible threshold on digital control input at VCC = 2.3V to 3.0V, 4 select pins controlling 2 switches each, typical bandwidth (-3dB) at 800MHz on all channels, USB (2.0) high speed (480Mbps) signal switching compliant, integrated fail safe function, latch-up performance exceeds 100mA per JESD 78, Class II, ESD performance exceeds JESD22 2000-V human body model (A114-A) etc.
The STG3820 is a high-speed CMOS low voltage quad analog DPDT (dual pole dual throw) switch or 2:1 multiplexer/de-multiplexer fabricated in silicon gate CMOS technology. It is designed to operate from 1.65 V to 4.3 V, making it ideal for portable applications such as mobile phones and USB 2.0 high-speed signal switching.
Key features include an integrated fail-safe function to withstand overvoltage conditions when powered off, ESD performance exceeding JESD22 standards, and a typical bandwidth of 800 MHz. The device offers low ON resistance and ultralow power dissipation, with protection circuits against static discharge on all inputs and outputs.
| Typical bandwidth | 800 MHz |
|---|---|
| Operating temperature | -40 to 85 °C |
Yes, it is compliant with USB (2.0) high speed (480 Mbps) signal switching.