Mouser stocks Maxim’s MAX30004 bio-potential heart rate analogue front end

Distributor, Mouser Electronics, has announced that it is now stocking the MAX30004 bio-potential analogue front end (AFE) from Maxim Integrated.

The MAX30004 AFE is a single-channel bio-potential heart-rate detection AFE for wearable medical applications, such as chest bands and single-lead wireless patches for heart rate monitoring. The MAX30004 AFE eliminates the need to extract and process electrocardiogram (ECG) data on its microcontroller for high-motion environments, points out Mouser.

The Maxim MAX30004 AFE provides a single bio-potential channel that measures R wave-to-R wave interval of heart beats to determine heart rate. The bio-potential channel features electrostatic discharge (ESD) protection, electromagnetic interference (EMI) filtering, and DC leads-off detection. The MAX30004 offers calibration voltages for built-in self-testing. The device’s soft power-up sequencing ensures that no large transient signals are injected into the electrodes.

The device’s differential input structure features high common-mode rejection ratio (CMRR) of more than 100dB and a high impedance of more than 500MOhms, which results in improved low common-to-differential mode conversion. A 0.7mA leads-on feature keeps the MAX30004’s microcontroller in deep sleep mode, with the real-time clock in the off position until a valid lead condition is detected. Configurable interrupts allow the microcontroller to wake up only on every heartbeat, reducing overall system power consumption.

The MAX30004 has a high DC offset range of ±650mV (1.8V typical) that allows it to be used with a wide variety of electrodes. The device offers low power consumption of just 85mW at a 1.1V supply, leading to longer battery lifetimes.

Mouser claims to stock the world’s widest selection of the latest semiconductors and electronic components for the newest design projects. Mouser Electronics’ website is continually updated and offers advanced search methods to help customers quickly locate inventory. also houses data sheets, supplier-specific reference designs, application notes, technical design information, and engineering tools.

Mouser Electronics is a Berkshire Hathaway company and offers 22 support locations around the world to provide best-in-class customer service and ships globally to over 550,000 customers in 170 countries.

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