Subtractor Operational Amplifier kit.

The operational amplifier (op- amp) is a highly efficient monolithic integrated circuit.  An amplifier has an input port and an output port. In a linear amplifier, output signal = A * (time) input signal, where A is the amplification factor or gain (positive or negative number). The Op-Amp has a very high gain, high input impedance, and DC coupled difference amplifier with a low impedance single ended output.

An ideal op-amp, by itself, is not a very useful device since any finite input signal would result in infinite output. By connecting external resistors around the ideal op-amp, we construct useful amplifier circuits. The basic subtractor amplifier so named because the output signal is define as the voltage subtractor of the two inputs. If desire multiply be certain attenuation.

The kit should be powered via 9V battery. Simply connect the battery (+) poll to the VCC, and the negative poll (-) to the Ground (GND). 

Note: Vin or Vcom should be smaller then (VCC-VSS-0.4V)/2

Since the Op-Amp is not ideal the error can be adjust via adjustable gain trimmer (PY). Additional multi turn trimmer (PO) assigned to accurate adjust Op-Amp offset-null if desire.

The board function is define in the following formulas:

Where;

G = Gain

R1 = R2 = RX

Vout1 = Vcom - G * Vin

Kit Includes

• RE3140               IC                 1pc.

• 10k Ohms            Resistor         2pc.

• 100k Ohms           Resistor         2pc.

• 10k Ohms            Trimmer         1pc.

• 22pF                  Capacitor       1pc.

• 2P Terminal Block  Connector      2pc. 

• 3P Terminal Block  Connector      1pc. 

• PCB                                        1pc.

Schematic 

Description and SKU#

Price

Picture

Substractor Op-AMP kit

EID-K-OP-AMP-SUB-ASM Fully assembled

32.00

EID-K-OP-AMP-SUB-KIT Kit

27.93

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