EL5372IUZ-T13

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EL5372IUZ-T13 Application Field and Working Principle

EL5372IUZ-T13 is a voltage-mode instrumentation amplifier based on linear technology. It is often used in industrial applications such as test-measurement systems and industrial control systems. Designed for a wide range of applications, EL5372IUZ-T13 features a low-noise (2.5 nV/√S), high-speed (3.3 V/uS), and low-distortion voltage-output amplifier. It can provide accurate and stable readings of numerous parameters like voltage, current, temperature, and strain. In this article, we will discuss the application field and working principle of EL5372IUZ-T13 instrumentation amplifier.

General Description

The EL5372IUZ-T13 is a differential-input, precision, low-noise voltage-output instrumentation amplifier. This amplifier incorporates the latest Linear Technology’s voltage-mode architecture. It is capable of driving a maximum output voltage of ±12 V (-3 dB) over a wide range of frequencies up to 10 MHz. It has a minimum input-offset voltage of 0.5 mV and a matching gain precision of 0.05%. Its wide bandwidth and low noise performance make it ideal for precision industrial applications.

Specifications

The main specifications for the EL5372IUZ-T13 instrumentation amplifier are as follows:

• Input Range: 10 V minimum.
• Input Impedance: 1 MΩ (typical).
• Output Range: ±12 V (-3dB).
• Noise: 2.5 nV/√S on all channels.
• Power Supply: 15 V ±5%.
• Operating Temperature: -40 °C to +85 °C.
• Package Type: 8-pin SOP.

Application Field

The EL5372IUZ-T13 instrumentation amplifier is widely used in industrial applications, such as process control, data acquisition and industrial control systems. It is also suitable for measuring a variety of parameters like voltage, current, temperature, strain and sound levels. In addition, it can be used for signal conditioning in medical, automotive, scientific and analytical test and measurement systems.

Working Principle

The EL5372IUZ-T13 is a precision, low-noise instrumentation amplifier with a differential input, a high-gain output stage and an output voltage limiting circuit. It uses a high-impedance input stage for both inputs, which helps to provide better noise rejection and low distortion signals. The output of the amplifier is buffered with a MOSFET cascode, providing a large voltage range and high speed. The output voltage is generated by a fast gain control loop. The loop is adjusted with a precision reference trim in order to maintain a constant output voltage over temperature and process changes. The gain of the EL5372IUZ-T13 amplifier is typically set to 1V/V.

In order to reduce output errors, the EL5372IUZ-T13 instrumentation amplifier uses a voltage-fed error amplifier. The error amplifier senses the output voltage and compares it to a reference. If the output voltage varies from the reference, the amplifier applies a correcting voltage to the input. As a result, the output voltage is held to the reference level.

In order to reduce distortion, the EL5372IUZ-T13 instrumentation amplifier uses a special distortion reduction circuitry. This circuitry is designed to limit the total harmonic distortion to below 0.04%. It also minimizes noise and increases dynamic range.

The EL5372IUZ-T13 instrumentation amplifier is a versatile and reliable amplifier, suitable for use in many different applications. It has high performance levels, low noise, low distortion and a wide bandwidth. It is also capable of driving a maximum output voltage of ±12 V (-3 dB) over a wide frequency range. This makes it well suited for precision industrial applications.

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