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TLE2071ACDR application field and working principle

Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

TLE2071ACDR is a part of the instrumentation line of integrated circuits from Texas Instruments. It is a low power, high gain, monolithic operational amplifier designed for use in many instrumentation, signal conditioning and control applications. This device operates from low supply voltages of + 8V to + 30V and is well suited for use in battery powered systems. It can deliver up to + 15V continuous output voltage swing and can achieve a common mode rejection ratio (CMRR) of up to 120dB at frequencies up to 10MHz. The device offers low offset voltage of 60µV and low drift over time.

The TLE2071ACDR includes a wide variety of features and specifications, such as high slew rate of 4V/µs, low input bias current of 2.5pA, low input voltage noise of 22nV/√Hz and low distortion. It also offers high input impedance of 10MΩ, low output saturation voltage of 28mV, and low power supply rejection ratio of 0.1%. The device offers great value for money and performance for wide variety of applications.

Working principle

The TLE2071ACDR operates as a voltage follower, where the input voltage is applied to the non-inverting input terminal, while the output voltage appears at the inverting input terminal. The device features a differential input stage, in which the difference between the voltages of the non-inverting and the inverting input terminals is amplified by a fixed gain of 20V/V. This differential voltage is then fed to a high gain input stage, where it is amplified to the low output saturation voltage level. It is then fed to the output stage, where it is amplified further and finally appears at the output terminal. The device operates with a supply current of 2.4mA.

Application Field

The TLE2071ACDR is a low cost, low power amplifier that can be used in many instrumentation, control and signal conditioning applications. It can be used in automotive applications such as Engine Control Units (ECUs), for monitoring engine speed, and for measuring vehicle speed and position. The device can also be used in medical applications such as biosignal amplifiers and heart-beat detectors, and in consumer and industrial electronics, where it can be used in audio amplifiers, servo amplifiers and motor control systems. Other applications include instrumentation systems, data acquisition systems and medical instrumentation.

In summary, the TLE2071ACDR is a low power, high gain, monolithic operational amplifier with excellent specifications and features. It is ideal for use in many instrumentation, signal conditioning and control applications, and can deliver great performance and value for money.

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