TS9222IPT Integrated Circuits (ICs)

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The TS9222IPT is a fully-integrated, linear instrumentation amplifier (IP) that can be typically used for a wide range of applications, such as gain setting and temperature measurement. It has a wide input voltage range (from 2.7 V to 8 V) and a high common-mode rejection ratio (CMRR) of > 99 dB. Furthermore, it features a low-noise input stage, which allows for accurate measurements even in the most demanding applications.

The TS9222IPT also has an adaptive gain stage, which allows the gain to be programmed via an external reference voltage, providing an automated gain-setting capability to the amplifier. This, combined with the high CMRR and design flexibility, enables the user to optimize the performance of the amplifier in different application areas.

Working Principle: The TS9222IPT op amp typically consists of two input terminals, two output terminals, and a reference voltage terminal, which is used to provide the adjustable gain in the system. When a differential input is applied across the two input terminals, the differential voltage is amplified by a factor determined by the gain. The gain is a function of the applied reference voltage, which is typically set by a external reference source.

The difference between the two inputs at the amplifier’s input terminals is called the ‘differential voltage’ and is amplified by the amplifier’s gain. The gain is usually expressed as a proportion of the reference voltage, ie, the ‘gain-setting’ factor. The TS9222IPT amplifier is designed to amplify the differential voltage and provide gain amplification with a wide operating voltage range and a high common-mode rejection ratio (CMRR).

The output from the amplifier is a single-ended voltage, which is the method used to adjust the gain. A single-ended output voltage is the voltage found between the output terminal and the reference terminal. By adjusting the gain-setting factor, the output voltage can be changed.

The amplifier also features a low-noise input stage which minimizes the effects of external interferences on the measurement. Additionally, the amplifier supports an integrated low-power sleep mode for improved power efficiency in battery-equipped circuits. This helps to extend the battery life and reduce overall power consumption in mobile and energy-harvesting systems.

Overall, the TS9222IPT amplifier provides an excellent performance with a wide voltage range and a high CMRR, making it ideal for a wide range of linear-amplifier, instrumentation, and buffer-amp applications.

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