Click here for production status of specific part numbers. MAX30002 Ultra-Low-Power, Single-Channel Integrated Bioimpedance (BioZ) AFE General Description Benefits and Features The MAX30002 is a complete bioimpedance (BioZ), BioZ AFE with High Resolution Data Converter analog front-end (AFE) solution for wearable applications. 17 Bits ENOB with 1.1V Noise for BioZ P-P It offers high performance for clinical and fitness High AC Dynamic Range of 90mV Will Help P-P applications, with ultra-low-power for long battery life. The Prevent Saturation in the Presence of Motion/Direct MAX30002 is a single bioimpedance channel capable of Electrode Hits measuring respiration. Longer Battery Life Compared to Competing Solutions The bioimpedance channel has ESD protection, EMI 158W at 1.1V Supply Voltage filtering, internal lead biasing, DC leads-off detection, Leads-On Interrupt Feature Allows to Keep C in ultra-low-power leads-on detection during standby mode, Deep Sleep Mode Until Valid Lead Condition is and a programmable resistive load for built-in self-test. Detected Soft power-up sequencing ensures no large transients Lead-On Detect Current: 0.63A (typ) are injected into the electrodes. The channel also has High Accuracy Allows for More Physiological Data high input impedance, low noise, high CMRR, program- mable gain, various low-pass and high-pass filter options, Extractions and a high resolution analog-to-digital converter. The 8-Word FIFO Allows the MCU to Stay Powered Down bioimpedance channel includes integrated programmable for 256ms with Full Data Acquisition current drive, works with common electrodes, and has the High-Speed SPI Interface flexibility for 2 or 4 electrode measurements. It also has Shutdown Current of 0.58A (typ) AC lead off detection. The MAX30002 is available in a 28-pin TQFN and 30-bump wafer-level package (WLP), operating over the 0C to +70C commercial temperature range. Ordering Information appears at end of data sheet. Applications Single-Lead Wireless Patches for In-Patient/Out-Patient Monitoring Respiration and Hydration Monitors Impedance Based Heart Rate Detection 19-100289 Rev 0, 3/18MAX30002 Ultra-Low-Power, Single-Channel Integrated Bioimpedance (BioZ) AFE Functional Diagram AVDD DVDD OVDD MAX30002 BIOIMPEDANCE CHANNEL CSB HPF AAF BIP ESD, EMI, 20-BIT SDI INPUT MUX, INPUT 20-BIT DECIMATION f-3dB PGA BIN DC LEAD AMP =600Hz ADC FILTER CHECK SCLK -20dB/dec -40dB/dec SPI INTERFACE, FIFO, AND SDO CLOCK REGISTERS DIVIDER SELECTABLE PHASE w/ PHASE ADJUST INTB DRVP PUSH/PULL INT2B CURRENT DRVN SOURCE SUPPORT CIRCUITRY COMMON-MODE REFERENCE fCLK FCLK BUFFER BUFFER SEQUENCER BANDGAP BIASING PLL fHFC AGND VCM VBG VREF RBIAS CPLL DGND Maxim Integrated 2 www.maximintegrated.com