Capacitors come in two main types: electrolytics and non-electrolytics. There are not ideal elements, less to say, and intrinsically present Equivalent Series Resistance (the famous ESR), current leakage, dielectric absorption and, as usual with real […]
Resistors have two main issues when you want to design a low noise, low distorsion system : noise and linearity. Imagine also that you design a RIAA filter : tolerance and linearity are major concerns […]
IoT designers should thank Philips Semiconductors company everyday for inventing the I2C bus in the 80s (I2C means Inter-Integrated Circuit). Two wires only and several ‘masters’ can communicate synchronously to several ‘slaves’. In comparison, SPI […]
The pioneer of all industrial communications protocol is Modbus, which is still widely used in industry and IoT as well. Modbus has been created in 1979 by Modicon (now Schneider Electric). The protocol is now […]
The Raspberry Pi RP2040 is a little 40-nm silicium beast with high performance, low power consumption, low leakage, ease of use, and low cost. Its impressive technical specifications features a large on-chip memory, a dual-core […]
Op-amps are used everywhere today, especially in audio design because of their outstanding price-performance ratio against discrete components. But in the premium audio purist world, op-amps are often considered as little daemons, children of the […]
