UNIT I
DIFFERENTIAL AND CASCADE AMPLIFIERS: Introduction, Differential
Amplifier, Differential Amplifier Circuit Configuration, Dual Input-Balanced output
Differential Amplifier, Dual Input-Unbalanced output Differential Amplifier, Single
Input-Balanced output Differential Amplifier, Single Input-unbalanced output
Differential Amplifier with their DC and AC analysis, Differential Amplifier with
swamping resistors, Constant current bias, Current Mirror, Cascaded differential
Amplifier Stages, Level Translator, CE-CB configuration.
UNIT II
INTRODUCTION TO OPERATIONAL AMPLIFIERS: Block diagram of a typical
Op-Amp, Schematic symbol, integrated circuits and their types, IC package types, Pin
Identification and temperature range, Interpretation of data sheets, Overview of typical
set of data sheets, Characteristics and performance parameters of and Op-Amp, Ideal
Op-Amp, Equivalent circuit of an Op-Amp, Ideal voltage transfer curve, Open loop
configurations : Differential, Inverting & Non Inverting. Practical Op-Amp: Input offset
voltage, Input bias current, Input offset current, total output offset voltage, Thermal drift,
Effcet of variation in power supply voltages on offset voltage, Change in Input offset
voltage and Input offset current with time, Temperature and supply voltage sensitive
parameters, Noise, Common Mode configuration and common mode rejection Ratio.
Feedback configurations.
UNIT III
APLICATIONS OF OP-AMP: DC and AC amplifiers, Peaking Amp, Summing,
Scaling and Averaging Amp, Instrumentation Amplifier, V to I and I and to V converter,
Log and Antilog Amp, Integrator, Differentiator. Active filters: First order LP
Butterworth filter, Second order LP Butterworth filter, First order HP Butterworth filter,
Second order HP Butterworth filter, Higher order filters, Band pass filter, Band reject
filters, All pass filter, Phase shift oscillator, Wein bridge oscillator, Quadrature
oscillator, Square wave generator, Triangular wave generator, Sawtooth wave generator,
Voltage controlled oscillator, Basic comparator, Zero crossing detector, Schmitt trigger,
window detector, V to F and F to V converters, A to D and D to A converters, Peak
Detector, Sample and Hold Circuit.
UNIT IV
SPECIALIZED IC APPLICATIONS: IC 555 Timer: Pin configuration, Block
diagram, application of IC 555 as Monostable and Astable Multivibrator., Phase Lock
Loops: Operating principles & applications of IC 565, Voltage Regulators: Fixed voltage
regulators, Adjustable voltage regulators, Switching Regulators.