MAX30002CWV+T

Analog Front End (AFE) Overview

The MAX30002CWV+T is a single-channel bioimpedance (BioZ) analog front-end (AFE) in a 30-bump WLP package. It operates with AVDD/DVDD at 1.1V to 2.0V and OVDD at 1.65V to 3.6V, consuming 158µW at 1.1V. The device features a 20-bit Sigma-Delta ADC, programmable current drive (8µA to 96µA), and high input impedance. Key specifications include 17 bits ENOB, 1.1µVP-P noise, and a 90mVP-P AC dynamic range. It supports DC/AC lead-off detection, EMI filtering, and an 8-word FIFO for low-power MCU interfacing via SPI.

Analog Front End (AFE) Feature Summary

• Ultra-low power consumption of 158µW at 1.1V supply voltage
• Integrated 20-bit Sigma-Delta ADC with 17 bits ENOB and 1.1µVP-P noise
• Programmable current source (8µA to 96µA) and gain (10x to 80x)
• Built-in self-test via programmable resistive load and ULP leads-on detection

Analog Front End (AFE) Applications

• Single-lead wireless patches for in-patient/out-patient monitoring
• Respiration and hydration monitors
• Impedance-based heart rate detection

Analog Front End (AFE) Procurement Notes

Verify the 'T' suffix indicates tape-and-reel packaging by confirming the specific distributor's listing or manufacturer documentation. Ensure the component meets RoHS3 compliance standards as specified for the base part number.

Analog Front End (AFE) Selection Notes

Select this AFE for wearable applications requiring long battery life due to its ultra-low power profile. Ensure the design accommodates the 30-bump WLP package dimensions (2.74mm x 2.93mm). Verify that the system interface supports the required 12MHz SPI clock speed.

Analog Front End (AFE) Part Context

The MAX30002 is part of Maxim Integrated's BioZ AFE family, designed specifically for clinical and fitness wearable devices. It integrates signal conditioning, excitation, and digitization into a single channel, reducing external component count compared to discrete solutions.

Analog Front End (AFE) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.