Simple Output Filter Eliminates ISO Amp Output Ripple And Keeps Full Bandwidth
Texas Instruments published 09/27/2000
Description
The ISO120/121/122 isolation amplifiers (ISO amps) have a small (10-20mVp-p typ) residual demodulator ripple at the output. A simple filter can be added to eliminate the output ripple without decreasing the 50kHz signal bandwidth of the ISO amp.
