I was wandering through the nearby Bestbuy/Unnecessary-Service-Plans-R-Us with my friend this weekend, killing Saturday boredom with mindless browsing. While we were examining some very nice computer ...

You have designed an op-amp circuit to measure a small voltage. The circuit gain is -10V/V, but it appears that the input impedance to the circuit is effecting the device as it is being measured. How ...

In the “Say It with Me” series, we’ll take a commonly used concept out of electronics and explain it the best we can. If there’s something that’s been bugging you, or a certain term or concept that ...

The input impedance of a.c.-coupled op amp circuits depends almost entirely on the resistance that sets the d.c. operating point. If CMOS op amps are used, the input is high, in current op amps up to ...

In this paper a new formula for the input impedance of the rectangular V-dipole antenna is presented. The formula is derived by variational method using a two-term trial function for current ...