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What is an operational amplifier circuit?
Can op-amp circuits be used for digital signal processing?
Yes, op-amp circuits can be used for digital signal processing as well. In fact, they are often used as building blocks for more complex digital circuits. Additionally, op-amp circuits can be used to interface between analog and digital systems, such as input/output (I/O) buffers in microcontrollers or analog-to-digital converters (ADCs).