DG445是Maxim美信半导体公司的一款保护器产品，DG445是改进的四路、SPST模拟开关，本站介绍了DG445的封装应用图解、特点和优点、功能等，并给出了与DG445相关的Maxim元器件型号供参考。
DG445 - 改进的四路、SPST模拟开关 - 保护器 - Maxim美信半导体高性能芯片品质 - 美信半导体
Maxim's redesigned DG444/DG445 analog switches now feature on-resistance matching (4Ω max) between switches and guaranteed on-resistance flatness over the signal range (9Ω max). These low on-resistance switches conduct equally well in either direction. They guarantee low charge injection (10pC max), low power consumption (35µW max), and an ESD tolerance of 2000V minimum per Method 3015.7. The new design offers lower off-leakage current over temperature (less than 5nA at +85°C).
The DG444/DG445 are quad, single-pole/single-throw (SPST) analog switches. The DG444 has four normally closed switches and the DG445 has four normally open switches. Switching times are less than 250ns for tON and less than 70ns for tOFF. Operation is from a single +10V to +30V supply, or bipolar ±4.5V to ±20V supplies. Maxim's improved DG444/DG445 continue to be fabricated with a 44V silicon-gate process.
