AD8278BRMZ-RL

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AD8278BRMZ-RL is an instrumentation amplifier with a special level of performance and low power consumption. The operational amplifiers and buffers contained in the amplifier provide accurate and low power with a high precision amplifier design. AD8278BRMZ-RL has been developed to capture exceptions with low power consumption and flexible functionalities.

Application Field

AD8278BRMZ-RL is used in a number of applications, as it is suitable for powering portable medical devices, data acquisition systems, low-power audio, or instrumentation. It is capable of amplifying input signals while reducing noise and distortion with a low-noise single-ended architecture, thus making it great for precision amplification.

Moreover, this amplifier can power portable medical and data acquisition systems with low power consumption. It offers two hardware-programmable gains for increased flexibility and supports an on-demand gain change for changes in the system requirement. This amplifier allows the user to program the gain for improved system performance.

Working Principle

AD8278BRMZ-RL has two op-amps and two buffers and each of them has its own special operation principle. The amplifier’s operation relies on low input bias and offset currents, having minimal drifting over time, with a low current. Its operation includes a gain setting of 0dB, 5dB or 10dB while the output stage is biased to a suitable voltage.

The amplifier’s common-mode current limitation is provided by an external capacitor and a pull-up resistor. This particular device additionally provides a full temperature compensation range and eliminates any need for injecting an external voltage. Furthermore, it requires only a single 5V or 3V supply voltage, allowing it to be used in both AC and DC applications.

The input offset voltage adjusts to a few micro-volts and a selectable analogue ground pin operation allows the user to cut off a gain stage when the power is applied, thus improving the power consumption. The output stage has two poles of active filtering to filter out any unwanted noise.

Conclusion

Overall, AD8278BRMZ-RL is a highly flexible and versatile instrumentation amplifier with low power consumption and a special level of performance for its applications. It has two OP-amps and two buffers with a low current, accurate and low power features as well as hardware-programmable gains and temperature compensation. The analogue ground pin operation allows the user to cut off a gain stage when the power is applied, making it great for precision amplification and data acquisition systems.

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