The JRC integrated circuit by Japan Radio Company is a dual operational amplifier internally compensated and constructed with bipolar transistors on a single silicon chip. The high voltage gain dB typ. The first RC monolithic dual opamp was developed by Raytheon Semiconductors in The dual amp is linked with the history of the guitar pedals development.
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The JRC is a high performance monolithic dual operational amplifier. JRC internally compensated and constructed on a single silicon chip. The high voltage gain dB typ. JRCIC can be used in general purpose op-amp operation circuits like comparator, differential amplification or mathematical operations. Moreover, the device specifically designed for applications like transducer amplifiers, dc amplification blocks to be implemented more easily in single-supply-voltage systems.
For example, these devices can be operated directly from the standard 5V supply used in digital electronics without additional -5V supply. In addition with two of those op-amps on board, the device can perform two different functions at a time that comes in handy in applications.
The device is popular among hobbyists and engineers for being low cost and good performance. The internal connection diagram of JRC is shown below. Now let us take a single op-amp from the available two and construct a simple JRC circuit diagram to explain its aplications.
In the above circuit, the op-amp acts as a Non-Inverting Amplifier Since the input is given to the Non-inverting terminal of the op-amp and output is provided as Vo. Also, the device is powered from a single voltage source of VCC. With that, we have realized the amplifier circuit of the op-amp and in a similar way, we use the device to design all other application circuits of an op-amp.
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JRC4558 Amplifier. Datasheet pdf. Equivalent