TL082CPWRG4

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The TL082CPWRG4 is a general purpose low power JFET input op-amp which has been designed to operate from a single supply or dual supplies. It is widely used in a variety of applications due to its low-power consumption, wide common-mode and differential voltage range, low input bias current, and rail-to-rail input and output capability. The device can be employed in various applications, including audio preamplification, DC precision gain blocks, active filters, instrumentation amplifiers and front-end circuits for small signal analysis. This application note will provide an overview of the TL082CPWRG4, discuss its typical application and the design considerations associated with the device, and examine its working principle.

Application Field:

The TL082CPWRG4 is mainly used in audio preamplification circuits, where it provides high gain and low noise performance. For example, it can be used in tape recorders, video cameras, and other electronic devices as a preamplifier. It is also used in instrumentation amplifier circuits, due to its low input offset current, good input common-mode rejection ratio, and high gain. In addition to audio preamplification and instrumentation amplifiers, the TL082CPWRG4 can also be used in many other applications, including DC precision gain blocks, active filters, and front-end circuits for small signal analysis.

It is also a common choice for power applications, as it can provide high power gain and low power consumption in a single package. One of the most common applications is in audio power amplifiers and switching power supply circuits. It can also be used in servo and motor control applications, where it provides precise current sensing and voltage regulation.

The TL082CPWRG4 can also be used as an adjustable voltage regulator, due to its wide input and output voltage range and low current consumption. It is suitable for use in battery-powered devices, mobile phones, and other applications which require low-power operation or adjustable output voltages.

Working Principle:

The TL082CPWRG4 consists of two internally compensated op-amps connected in series. It operates from a single supply, dual supplies, or split supplies and is designed for simplicity and robustness by providing overvoltage protection, short-circuit protection, and current-limiting features. The output will not saturate even when connected to high-impedance loads. The TL082CPWRG4 is internally compensated, and requires very little external circuitry besides the feedback network and input impedance.

The TL082CPWRG4 is an amplifier that has a transconductance gain stage. It amplifies the difference between two voltages: the input signal, and the feedback voltage. The input signal is determined by the input impedance and will be amplified by the gain of the amplifier. The feedback signal is controlled by the feedback network and supplies the amplifier with the closed loop gain. The amplifier also incorporates a low-noise input stage designed to provide low noise performance when amplifying small signals.

The TL082CPWRG4 also features an input common-mode range that extends from its negative to its positive supply voltage. The input mode range is limited by its saturation voltage, however, with values of ±25mV for the current source and ±92mV for the current sink. Other features include low input bias current, low offset voltage and high PSRR performance.

In addition, the TL082CPWRG4 also provides additional protection for input pins and output pins. This protection limits the output voltage and reduces the possibility of component damage due to excessive voltage or current. The protection circuit is activated when the input or output voltage exceeds the maximum limit of the device.

Conclusion:

The TL082CPWRG4 is a low power, general purpose, JFET input op-amp. It has been designed to operate from single supply or dual supplies and has a wide range of applications, including audio preamplification, DC precision gain blocks, active filters, instrumentation amplifiers and front-end circuits for small signal analysis. With its low power consumption, wide common-mode and differential voltage range, low input bias current, and rail-to-rail input and output capability, the TL082CPWRG4 is a versatile device suitable for a variety of applications. It incorporates features such as short circuit protection, overvoltage protection, and current limiting protection. It is also internally compensated, and requires minimal external circuitry to operate.

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