OPA2356AID

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Introduction

OPA2356AID is a dual low power precision operational amplifier designed for use in automotive or other harsh environments. It can operate in a temperature range from -40 to +125 °C, and come with an integrated ESD protection up to 16kV. OPA2356AID supports an extended supply voltage range from 2.7V to 12V. The OPA2356AID also feature an output voltage swing which is very close to the supply rails.

Application Field

The OPA2356AID is especially well-suited for low-power instrumentation applications in battery-powered portable devices such as electronic meters, medical, telecom and automotive devices. The wide supply voltage range, small footprint and low power consumption makes it suitable for such devices.

The OPA2356AID can be used in a variety of signals conditioning and filtering applications, due to its wide unit gain bandwidth of 3MHz, low total harmonic distortion (THD) of -110 dB, and high slew rate of 14 V/μs. It also features a high common-mode rejection ratio of 90 dB, which makes it ideal for use in noisy environments.

Working Principle

The main working principle of OPA2356AID, as with most operational amplifiers, centers on the principle of negative feedback. The amplifier consists of two differential amplifiers, each with its own set of input ports, feedback network and output port. The output port of each amplifier is connected to the input of the other via a feedback path. The gain of the amplifier is determined by the ratio of the feedback signal to the signal that is being amplified. This ratio is adjustable via an external resistor or capacitor.

The OPA2356AID is designed to provide a very high common-mode rejection ratio (CMRR), which is the ability of an amplifier to reject signals that are common to both input ports. The CMRR of the OPA2356AID is 90 dB, meaning it is able to reject noise and other unwanted signals that are common to both inputs. This makes it ideal for filtering out noise or other unwanted signals from a signal used in an application.

Additionally, the OPA2356AID comes with a low offset voltage, which allows it to be used in a variety of applications without having to adjust the offset. The low offset voltage also makes it ideal for use in low voltage applications, where the small voltage offset can be significant.

Conclusion

In conclusion, the OPA2356AID is a dual low power operational amplifier with a wide temperature range, extended supply voltage range and integrated ESD protection up to 16kV. It is especially suitable for battery-powered portable devices or other applications requiring low power consumption. Additionally, it also provides a very high common-mode rejection ratio, as well as a low offset voltage, which allows it to be used in various applications.

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