Amplifier Schematic Symbol. The normal amplifier symbol is a triangle and within overall block diagrams this is often included within a square as shown below. Hf amplifier high frequency info.
The functions of op amp and comparator are very different. An operational amplifier often op amp or opamp is a dc coupled high gain electronic voltage amplifier with a differential input and usually a single ended output. Or from the document boardbite writes about in a comment.
Norton amplifier operational transconductance amplifier ota info.
Used to amplify a signal. It is a transducer that converts electrical energy into sound. Or from the document boardbite writes about in a comment. If amplifier intermediate frequency info.