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Linear - Amplifiers - Special Purpose

The MAX4375TEUB+ is a low-voltage CMOS ultra-low-power, low-dropout linear amplifier from Maxim Integrated. It is recommended for applications in automotive, consumer, industrial, portable instrumentation, single-cell Li-ion battery-powered systems, and other related industries where low-voltage, low-level components are required.

The MAX4375TEUB+ can be used as a fully-differential, low-noise amplifier that delivers up to 3V into a low-Z load with a quiescent current of only 29μA. It features a low-voltage operation down to 1.5V and can withstand up to 4V across its inputs, making it well-suited for applications requiring input protection, such as medical and automotive. The device is highly configurable and allows for selectable gain, current limit, and output select conditions.

The MAX4375TEUB+ is designed to perform well with a wide input range from ±2V to ±12V, making it useful for demanding external conditions. It has a wide bandwidth from 10Hz to 10MHz, allowing for fast response time in high frequency operations. The low noise operation is useful for critical applications such as automotive, audio, consumer, and medical. The MAX4375TEUB+ has a specified CMRR of 82dB at DC and 70dB at 1kHz, making it ideal for rejecting common-mode noise.

The MAX4375TEUB+ integrates a sophisticated unconditionally-stable amplifier with a Reference Pin (REF) and an input stage which compensates the effects of input capacitance. This allows the device to operate with an input range down to 0V, making it an ideal choice for low-voltage applications such as those found in consumer battery-powered systems. The optimized gain-bandwidth product (GBWP) of 800kHz makes the device suitable for high-speed applications. The device also features an integrated, low-impedance 1MΩ output which minimizes output-impedance loading errors, making it particularly well-suited for high-side load-sensing applications.

In summary, the MAX4375TEUB+ offers excellent performance in a tiny 3mm × 3mm package. It provides superior low-voltage performance and a wide range of output current limit, gain, and output-select configurations in a single ultra-low-power CMOS amplifier. With its low input voltage range, wide bandwidth, and high common-mode rejection performance, the MAX4375TEUB+ is a perfect fit for a wide range of demanding applications.

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