Articles Theory

Paul Rako Electronic Design You can’t leave unused inputs floating, but you might not want to connect them to a power or ground rail either. Digital engineers learned long ago that they should not leave unused inputs unconnected. CMOS chip ...

Seung Lee, The Mercury News Phys.org Before there was an iPhone, iMac or Macintosh, Apple had the Lisa computer. The Lisa computer which stands for Local Integrated Software Architecture but was also named after Steve Jobs' eldest daughter was ...

Jay Davis EDN All too often, we electrical engineers are under the gun to get a circuit working now, and don’t have the luxury of ordering parts and waiting even a day. The problem: loose parts in the tool box can be nearly impossible to read ...

John Teel, President, Teel Engineering Planet Analog I’m a huge fan of Albert Einstein. As many physicists will agree his theories are the most pure expression of genius in the history of humankind. So as an engineer I’m excited that I ...

Surprise, surprise. The bandwidth of an amplifier in a gain of +1 V/V is not the same as the bandwidth of the same amplifier in a gain of 1 V/V. After more than five years of working every day with amplifiers for an industry analogue leader, this ...

Roy McCammon EDN The traditional three op-amp differential amplifier's signal to noise ratio can be improved by 6 dB by adding a resistor and slightly changing the connections. There is a trade-off though: The traditional topology has a high input ...

Derek MacLachlan Staff Applications Engineer Keithley Instruments, Inc. Accurate measurements are central to virtually every scientific and engineering discipline, but all too often measurement science gets little attention in the undergraduate ...

Serial-data speed is usually stated in terms of bit rate. However, another oft-quoted measure of speed is baud rate. Though the two aren’t the same, similarities exist under some circumstances. This tutorial will make the difference clear. ...