Op-amp voltage offset cancellation

[Patrick Chung]

Combination of one fast op-amp with large slew rate and large voltage offset with one op-amp with small slew rate and small voltage offset and low pass filter can be used for amplification input AC signal on high frequencies without problem that amplifier can be saturated due to voltage offset presence.

Read more:

http://www.cirvirlab.com/index.php/electronic/166-op-amp-current-offset-op-amp-voltage-offset-and-op-amp-slew-rate.html