Many analog signal-chain circuits require ac-coupling to eliminate unwanted dc voltages or offsets. The simplest means to ac-couple is to use a capacitor in series with the signal path, thus forming a ...

My previous column introduced switched-capacitor filters (SCFs) and explained how the capacitors can replace resistors and improve filter accuracy. To find out more about how well SCFs behave, I used ...

In today's world of increasing electrical noise, higher-speed logic, and more-sensitive circuits, the need for high-frequency noise filtering is especially critical. Noise can enter a circuit through ...

It’s important to use feedback capacitors to stabilize the circuit when using a capacitive filter across the input pins of an op amp.

A research team led by Prof. MENG Guowen from the Institute Solid State Physics, Hefei Institutes of Physical Science (HFIPS) of Chinese Academy of Sciences (CAS), cooperating with Prof. WEI Bingqing ...