Question
Download Solution PDFThe ideal op-amp has
This question was previously asked in
ESE Electronics 2019: Official Paper
Answer (Detailed Solution Below)
Option 2 : infinite voltage gain and infinite bandwidth
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ST 1: UPSC ESE (IES) Civil - Building Materials
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Detailed Solution
Download Solution PDFThe ideal op-amp has the following characteristics:
- Input impedance (Differential or Common-mode) = Infinity
- Output impedance (open loop) = 0
- Voltage gain = Infinity
- Infinite Bandwidth
- Common-mode voltage gain = 0
- Vout = 0 when both inputs are at the same voltage, i.e. (zero "offset voltage")
- Output can change instantaneously (Infinite Slew Rate)
- The purpose of bias current is to achieve the ideal behavior in op-amp which is high CMRR, high differential gain, and high input impedance
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