App note: How to monitor state-of-charge in small batteries with tiny, ultra-low-power comparators

App note from Maxim Integrated about low current and voltage battery monitors. Link here

Many of today’s portable consumer electronic devices are powered by small button or coin-cell batteries. Users, of course, expect long battery life and reliable charge-level information. However, it can be quite challenging to efficiently monitor the health and state-of-charge (SOC) of these batteries without significantly affecting said SOC. In this application note, learn how simple, low-power monitoring circuits for small batteries can address this challenge.

from Dangerous Prototypes

App note: Effects of different resistor tolerances in a differential ADC for THD performance

App note from Maxim Integrated demonstrating the effects of different resistor tolerances on the analog front end of ADC’s performance. Link here

This application note explains how the different tolerances of the same value resistors at the inputs can alter the THD performance of the fully differential ADC. The cost of resistors changes significantly with each lower increment in tolerance

from Dangerous Prototypes