Category: Analog-Design

ICL7135 PCB Layout Method

I have design a PCB layout for a 4.5 digit voltmeter using the ICL7135 chip, and i have problems with the analog (more…)

The input impedance of this module is very high, if U1 is OP07 it is in mega ohms, use CA3140 or LF356 (more…)

The gain of U1 can be controlled by a digital binary 1248 nibble at ABC. The gain at digital 000 is unity (more…)

A, B, and C are the Digital Control for x, y and z input and output pairs.The voltage at Vinx is stored (more…)

This Circuit helps in the monitoring of mains supply voltage. It does not use a isolation step down transformer. This has to (more…)

It is called analog dial timer as it has no digital display, but the chip is digital it is CD4541. It is (more…)