EL5172IS

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The EL5172IS is a high performance, low noise, low cost differential amplifier circuit optimized for low noise operation while in load current-sensing applications. This is suitable for use in industrial and instrumentation systems, as well as communication and consumer products.

The EL5172IS integrates the four main components used to build an instrumentation or industrial load current-sensing amplifier: operational amplifier (OP amp) buffer amplifier, programmable gain amplifier (PGA) and a differential amplifier. The circuit also includes an additional current-limit resistor to enable current-limit sensing. This provides a great flexibility in terms of applications and allows the use of both positive and negative supply rails. The integrated circuit has two independent control pins to adjust the gain setting and current-limit threshold, allowing the user to easily adapt the amplifier circuit to any application.

The EL5172IS also features excellent noise immunity and linearity, making it highly suitable for applications where high-precision and accuracy is essential. This makes it ideal for applications where low noise performance is an important factor, such as medical and semiconductor imaging systems, instrumentation and communication systems, and consumer products. Furthermore, its high speed and extremely low parameter variation results in a robust and reliable circuit.

The EL5172IS is composed of a number of different components, with each component providing a specific function. The OP amp is used to convert the input differential voltage into a single-ended voltage suitable for amplification, while the buffer amplifier limits the output voltage swing and removes any noise generated by the circuit. The PGA provides adjustable gain by setting the gain of the overall system, while the differential amplifier provides isolation between the input and output signals, thus increasing the immunity against noise.

The EL5172IS also includes a current-limit resistor, allowing the user to set a predetermined level of current-limit. When this limit is exceeded, the amplifier output is clamped, providing an over current protection. This further increases the system reliability, making the EL5172IS an ideal choice for use in instrumentation systems, industrial systems, and communication and consumer products.

The EL5172IS has been designed to provide a wide range of performance features, making it highly suitable for use in a variety of application fields. In particular, its low noise performance, high linearity, and excellent noise immunity make it ideal for high-precision, accuracy-critical applications, such as medical and semiconductor imaging systems, instrumentation and communication systems, and consumer products.

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