Wideband Buffer using FET and Bipolar Transistor
The schematic diagram shown below is a wide-band buffer circuit. This circuit is formed by FET and transistor. This circuit consist of series-feedback buffer which act as wideband unity-gain amplifier. This wideband unity-gain amplifier has high input impedance due to the low input impedance of 2N5485 FET. Here is the schematic diagram of the circuit: …[Read More]
Compressor Circuit with 570/571 Compandor IC
Compressor circuit provide high gain for low amplitude input and provide low gain for high amplitude input. This action, in effect, produce a nearly constant amplitude even though the input has very high dynamic range (very high amplitude variation from time to time). The action of compression like this is needed in some situation, such …[Read More]
Previous Articles
Difference Of Squares Analog Computing
Because the differential input capability of the AD532, algebraic solution of several interesting functions such as difference of squares, (X2-Y2)/10V is allowed. The following figure shows us about the configuration of AD532 in the square mode, with a simple unity gain inverter connected between one of the signal inputs (Y) and one of the inverting …[Read More]
Frequency Counter/Tachometer with High Precision
For convenient reading, the display of this tachometer circuit show inthe reading in hertz directly. The conversion time will be equal to the gating time, which is 0.1 second with pin 11 of the ICM7027A connected to Vdd, make the display show tens of hertz at the least significant digit. An ICM7207 can be used …[Read More]
Instrumentation Amplifier with CMRR Calibration
Common mode rejection ratio (CMMR) is one parameter that specify the instrumentation performance. LM4250 is high performance op-amp which is characterized by very low power consumption. With special arrangement as shown in the following schematic diagram, the instrumentation amplifier circuit will be featured with calibration to maximize the CMMR performance.
Square Root Mode for AD532 Analog Processor
The following schematic diagram shows us about the connections for square root mode for ADS532 analog processor chip. Similar to the division mode, the multiplier cell is connected in the feedback of the op amp by connecting the output back to both the X and Y inputs. To prevent latch up as Zi approaches 0 …[Read More]
TDA7056 3W BTL Mono Audio Power Amplifier
For mono output amplifier application, TDA7056 IC can be your option. Compact but powerful, this integrated circuit is contained in a 9 pin medium power package. This device is designed for battery fed portable equipments such as mono recorders, radios and television. To attract the market, TDA7056 has many features such as low power consumption. …[Read More]
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