Even when the circuit was optimised to minimise its inherent non-linearity ... The diodes must be well-matched, and the op-amps need to have low voltage offsets, or at least lower than any diode ...

CT20116 is a crystal oscillator that generates a low jitter 25MHz clock by mean of either an external ... to be made available as internal reference clock. The oscillator circuit is designed to drive ...

So look over the oscillator circuit for a second and we’ll recap. Imagine that the input voltage just crossed the lower threshold. Because the input voltage is low, the output is set high.

This macro-cell is a general purpose, ultra low power internal oscillator core designed for LFoundry 0.15µm LF150 CMOS technology STD (Standard) and L ...

We got a lot of really great feedback about low battery cutoff options in the ... using a transistor (or MOSFET) with the base driven by a voltage divider including a zener diode.