MAX479CPD

Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

MAX479CPD is an instrumentation amplifier specially designed for medical applications. It has low input-referred noise, ultra-high linearity and excellent common-mode rejection ratio. This makes it the ideal choice for medical applications such as electrocardiogram, electroencephalogram, ultrasound imaging and other high-bandwidth systems. Moreover, it features an on-board voltage regulator for powering the device, making it suitable for incorporation into battery-powered systems.

Application Field

The MAX479CPD is suitable for use in applications such as medical equipment, medical telecommunications systems, medical imaging devices, medical instrumentation, medical research, and medical data acquisition systems. It is also suitable for use in lab instrumentation, automatic test equipment, industrial process control and monitoring, and device calibration.

Working Principle

The MAX479CPD is based on an In-Amp (instrumentation amplifier) topology. The In-Amp topology features a low-impedance input stage and a high-impedance feedback stage connected in a bridge with one half of the bridge connected to ground. This configuration allows for a large differential-input voltage range between two input signals, allowing for maximum signal fidelity. In addition, due to the high-impedance feedback stage, the device is able to reject any common-mode signals present on the input.

The MAX479CPD is a unity-gain instrumentation amplifier, meaning that its output is directly proportional to its input without any gain amplification. This is a key differentiator from traditional op-amps, where the output signals are amplified versions of the input signals. The MAX479CPD is also capable of providing high-level linearity and low-level noise suppression, making it ideal for medical applications where precision and accuracy are paramount.

The MAX479CPD is designed to be incorporated into battery-powered systems, as it features an on-board voltage regulator for this purpose. This eliminates the need for a separate power source, making it more cost-effective and energy-efficient. In addition, the device features short-circuit protection to prevent device damage due to over-powered applications.

Conclusion

The MAX479CPD is a specialised instrumentation amplifier designed for medical applications. It features low input-referred noise, excellent linearity and common-mode rejection ratio, and an on-board voltage regulator for powering the device. The device offers a high degree of precision and accuracy and is suitable for incorporation into battery-powered systems.