Now, start by working on the input circuit. At this point, you should be reasonably certain the power supplies are functioning correctly, and that the control circuitry is functioning correctly.

The quick and inexpensive solutions describedhere can help you avoid the INA circuit’s input-stage pitfalls. In a classic, three-op-amp INA(Figure 1), the input stage has two opamps in an ...

In interaction designer [Leonardo Amico]’s work Processing Decay, lettuce is used as an input to produce sound as an element within a CMOS circuit.. We’ve all seen lemons and potatoes doubling ...

Fig 1. A typical CMOS input circuit comprises a “P” and “N” transistor. One is fully “on” for logic high, and the other is “on” for a logic low.

Now [jgpeiro] has made one which is light years ahead of the toy kits, using a Raspberry Pi Pico, a 100 MHz ADC, and an effort to design a better input circuit.

The circuit in Figure 1 provides a low-cost, isolated ac-line monitor that measures ac-line-voltage level and has some other unique capabilities. The analysis of the circuit is straightforward: When ...

This circuit uses simple CMOS logic and two switched-capacitor ... Figure 2 shows a 100-MHz square wave input, a 12.5-MHz output for the filter clock, ...

Furthermore, it has spurred the adoption of layered circuit designs 11,16,17 in which the outputs of basic two-input circuit elements are fed forwards into other logic elements in the next layer.