My esteemed colleague, John Caldwell (not to be confused with ‘John’ the intern), authored a couple excellent blogs about instrumentation amplifier (INA) power supply and common-mode rejection ratio (PSRR & CMRR). (See “Dealing with rejection…

Monitoring the voltage level of a coin cell in a portable device or in back-up service is a common, simple application for modern CMOS operation amplifiers (op amps).

Figure 1 shows an implementation using the 1.8-V, OPA333 zero-drift op amp. The coin…

In honor of National Puzzle day here in the United States of America, I humbly present six op amp puzzles for you to puzzle on until your puzzler is sore – or at least until next week when I will publish the right answers! 

I’ve even provided you…

Some of the most frequently asked questions we get in the Precision Amplifiers forum here in the E2E Community™ have to do with an IC’s long-term stability of various parameters.  Nothing in nature is static, and the datasheet parameters are…

Tim Green

Here is the moment you have all been waiting for – the answers to the six op amp puzzles I posted last week. You know, the ones that you have all been puzzling and puzzling until your puzzler is sore! Score your number of right answers…

Electrical engineers are accustomed to dealing with rejection, and we absolutely love it. From common-mode rejection to power supply rejection, and even EMI rejection. The more rejection, the better!

However, in the…