Simulating the output-offset current of a current mirror is straightforward. You simply have to apply an input current, measure the output current, and calculate the difference. This output-offset current, however, is not equal to the input-offset current...

Frequent contributor Nick Cornford recently published a delightfully clever design idea using a platinum RTD calibrated to output a 1 mV/°C signal that’s perfect for direct readout via a standard DMM…

Before shipping moving-coil meters, manufacturers may short-circuit the meters' terminals with a length of wire, which provides effective electromagnetic damping and results in better immunity to external mechanical vibration and shocks that can occur during transportation...

Way back in 1986, famed analog innovator Jim Williams, in “Designs for High Performance Voltage-to-Frequency Converters” published his “King Kong” 100 MHz VFC. I have never seen its equal...

Nearly four decades ago famed designer Jim Williams cataloged five fundamental techniques for voltage to frequency conversion. One of those five is reproduced in Figure 1...

There are several applications at home or industry for long delay timers. Time delays on the order of seconds can be generated using 555 timer circuits...

I was driven to produce the circuit in this design idea by my increasing frustration with a collection of digital thermometers, all of which claimed accuracy to within 0.1 °C but the readings of which were mismatched by anything up to a couple of degrees...

Latching relays change their states when you apply a short voltage pulse to their coils. Because these relays require no continuous coil currents to keep their states, you can save considerable power in the driver circuit...

An excerpt from Christopher Paul’s “Parsing PWM (DAC) performance: Part 1 – Mitigating errors”: “I was surprised to discover that when an output of a popular µP...

Let’s see how you can effectively double the output sink current of the plain old 555 timer...