OP471GSZ-REEL

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OP471GSZ-REEL Application Field and Working Principle

Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

The OP471GSZ-REEL is an operational amplifier (op-amp) from Texas Instruments highly specialized as a low-noise and high-precision device. It is an integrated circuit (IC) that features a very high CMRR, low noise density, high speed and low power consumption. The OP471GSZ-REEL is mainly employed in instrumentation, signal conditioning and medical applications. This device is designed to have a wide output swing of ± 4.2V and a very high CMRR of 80 dB. It also offers very low power consumption at 13 mW per channel which is about 30 times lower compared to conventional op-amps. In addition, the OP471GSZ-REEL has a very low noise density of 0.3 V/sqrt Hz and a neat space-saving SO-8V package.The working principle of the OP471GSZ-REEL involves the combination of a pair of complementary transistors operating in the limit of their power supply and insulated from each other. This arrangement allows the output voltage to reach both the supply voltage limits of ± 4.2V without any saturation. At its core, an op-amp consists of two transistors which form the non-inverting and inverting inputs. In order to achieve the desired high CMRR, the gain stages are connected to each other in a fully balanced fashion. The output swings between the limits of the supply voltage without any saturation since the transistors operating in the limit of their power supply. When an input voltage is applied, the OP471GSZ-REEL amplifies the signal using inversion and noninversion amplifiers to increase the dynamic range of the signal. These amplifiers are configured in a differential amplifier structure, which offers high immunity to power supply noise and high common-mode rejection ratio (CMRR). Furthermore, the output stages consist of high-performance, low-cooking technology transistors that offer accuracy and stability.To sum up, the OP471GSZ-REEL from Texas Instruments is a specialized op-amp designed for high precision applications. It features a wide output swing of ±4.2V and a very high CMRR of 80dB. It also offers very low power consumption at 13mw per channel, a very low noise density of 0.3V/sqrtHz and a neat space-saving SO-8V package. This device is mainly employed in instrumentation, signal conditioning and medical applications, offering accuracy and reliability.

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