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Differentiation amplifier or differentiator is a circuit that performs mathematical operation of differentiation and produce output waveform as a derivative of input waveform.

The input impedance of the amplifier decreases with increase in frequency and make the circuit susceptible to high frequency noise such that noise can completely over ride differential output.

The aspect ratio is 4:3

Circuits used to generate horizontal scan signals are of monostable type

Rhombic Antenna is commonly used in point-to-point communication

Frequency range for GSM is 890 – 915 MHz for downlink and 935-960 for uplink.

Modulation used in Bluetooth is GFSK

GPS uses Spread Modulation

A divider circuit can be used to find square roots by connecting both the inputs of the multiplier (in the divider) to the output of an op-amp.

The input voltage must be negative or else the op-amp will saturate and lie between the ranges of -1 to -10v.

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