Mouser Electronics, the industry's leading semiconductor and electronic components distribution focused on new product introductions (NPIs) and offering a wide range of product types, is now shipping Maxim Integrated's MAX30004 Biopotential Analog Front End (AFE). The MAX30004 AFE is a single-channel biopotential heart rate monitoring AFE solution for wearable medical applications. It can be used in heart rate chest straps and single-lead wireless heart rate patches, eliminating the need to extract and process ECGs in a microcontroller during intense exercise. (ECG) data.
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The Maxim MAX30004 AFE from Messer offers a single biopotential channel to measure the RR wave spacing of the heartbeat to determine heart rate. This biopotential channel provides electrostatic discharge (ESD) protection, electromagnetic interference (EMI) filtering, and DC lead-off detection. The MAX30004 provides a wide range of calibration voltages for the built-in self-test feature, and its soft power-up sequence ensures that no large transients are injected into the electrode.
The MAX30004's fully differential input architecture provides high common-mode rejection ratio (CMRR) of over 100 dB and high impedance of over 500 MOhm, improving common-mode to differential-mode conversion. The 0.7 mA lead-on feature allows the AFE's microcontroller to maintain a deep sleep mode while the real-time clock is turned off until a valid lead condition is detected. Configurable interrupts allow the microcontroller to wake up only on each heartbeat, reducing overall system power consumption.
With a DC bias range of up to ±650 mV (1.8 V typical), the MAX30004 can be used with a variety of electrodes. The device's ultra-low power consumption is only 85 mW at 1.1 V, so its battery life is longer than the competition.
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