MAX30001CWV+

Click here for production status of specific part numbers. MAX30001 Ultra-Low-Power, Single-Channel Integrated Biopotential (ECG, R-to-R, and Pace Detection) and Bioimpedance (BioZ) AFE General Description The MAX30001 is a complete, biopotential and bioimpedance (BioZ), analog front-end (AFE) solution for wearable applications. It offers high performance for clinical and fitness applications, with ultra-low power for long battery life. The MAX30001 is a single biopotential channel providing electrocardiogram (ECG) waveforms, heart rate and pacemaker edge detection, and a single bioimpedance channel capable of measuring respiration. The biopotential and bioimpedance channels have ESD protection, EMI filtering, internal lead biasing, DC leadsoff detection, ultra-low-power, leads-on detection during standby mode, and extensive calibration voltages for builtin self-test. Soft power-up sequencing ensures no large transients are injected into the electrodes. Both channels also have high input impedance, low noise, high CMRR, programmable gain, various low-pass and high-pass filter options, and a high resolution analog-to-digital converter. The biopotential channel is DC coupled, can handle large electrode voltage offsets, and has a fast recovery mode to quickly recover from overdrive conditions, such as defibrillation and electro-surgery. The bioimpedance channel includes integrated programmable current drive, works with common electrodes, and has the flexibility for 2 or 4 electrode measurements. The bioimpedance channel also has AC lead off detection. The MAX30001 is available in a 30-bump wafer-level package (WLP), operating over the 0°C to +70°C commercial temperature range. Applications ●● Single-Lead Event Monitors for Arrhythmia Detection ●● Single-Lead Wireless Patches for In-Patient/Out-Patient Monitoring ●● Chest Band Heart Rate Monitors for Fitness Applications ●● Bio Authentication and ECG-On-Demand Applications ●● Respiration and Hydration Monitors ●● Impedance Based Heart Rate Detection Ordering Information appears at end of data sheet. Benefits and Features ●● Can be Used in IEC 60601-2-47:2012 Compliant Systems ●● Clinical-Grade ECG and BioZ AFE with High Resolution Data Converter • 15.9 Bits ENOB with 3.1µVP-P (typ) Noise for ECG • 17 Bits ENOB with 1.1µVP-P Noise for BioZ ●● Better Dry Starts Due to Much Improved Real World CMRR and High Input Impedance • Fully Differential Input Structure with CMRR > 100dB ●● Offers Better Common-Mode to Differential Mode Conversion Due to High Input Impedance ●● High Input Impedance > 1GΩ for Extremely Low Common-to-Differential Mode ●● Minimum Signal Attenuation at the Input During Dry Start Due to High Electrode Impedance ●● High DC Offset Range of ±650mV (1.8V, typ) Allows to Be Used with Wide Variety of Electrodes ●● High AC Dynamic Range of 65mVP-P for ECG and 90mVP-P for BioZ Will Help Prevent Saturation in the Presence of Motion/Direct Electrode Hits ●● Longer Battery Life Compared to Competing Solutions • 85µW at 1.1V Supply Voltage for ECG • 158µW at 1.1V Supply Voltage for BioZ ●● Leads-On Interrupt Feature Allows to Keep the µC in Deep Sleep Mode Until Valid Lead Condition is Detected • Lead-On Detect Current: 0.7µA (typ) ●● Built-In Heart Rate Detection with Interrupt Feature Eliminates the Need to Run HR Algorithm on the µController • Robust R-R Detection in High Motion Environment at Extremely Low Power ●● Configurable Interrupts Allows the µC Wake-Up Only on Every Heart Beat Reducing the Overall System Power ●● High Accuracy Allows for More Physiological Data Extractions ●● 32-Word ECG and 8-Word BioZ FIFOs Allows the MCU to Stay Powered Down for 256ms with Full Data Acquisition ●● High-Speed SPI Interface ●● Shutdown Current of 0.6µA (typ) 19-100133; Rev 2; 8/19 MAX30001 Ultra-Low-Power, Single-Channel Integrated Biopotential (ECG, R-to-R, and Pace Detection) and Bioimpedance (BioZ) AFE Functional Diagram DVDD AVDD OVDD MAX30001 PACE DETECT CHANNEL AOUT BUFFER MUX POL. LPF INPUT AMP LPF PGA SW. RESPIRATION CANCEL, DERIVATIVE, SAMPLE/HOLD WINDOW COMPARE AND RESYNC PACEP PACEN BIOIMPEDANCE CHANNEL BIP BIN CSB HPF ESD, EMI, INPUT MUX, DC LEAD CHECK AAF INPUT AMP f-3dB = 600Hz -40dB/dec -20dB/dec 20-BIT ∑Δ ADC PGA SELECTABLE PHASE DRVP DECIMATION FILTER 20-BIT SDI SPI INTERFACE, ECG FIFO, AND REGISTERS CLOCK DIVIDER w/ PHASE ADJUST SDO INTB PUSH/PULL CURRENT SOURCE DRVN SCLK INT2B BIOPOTENTIAL CHANNEL ECGP ECGN AAF ESD, EMI, INPUT MUX, DC LEAD CHECK INPUT AMP f-3dB = 600Hz -40dB/dec 18-BIT ∑Δ ADC PGA 18-BIT DECIMATION FILTER FAST SETTLING R-TO-R DETECTOR 14-BIT CAPP CAPN SUPPORT CIRCUITRY REFERENCE BUFFER COMMON-MODE BUFFER fCLK BIASING BANDGAP AGND www.maximintegrated.com VCM VBG VREF RBIAS PLL CPLL SEQUENCER FCLK fHFC DGND Maxim Integrated │  2 MAX30001 Ultra-Low-Power, Single-Channel Integrated Biopotential (ECG, R-to-R, and Pace Detection) and Bioimpedance (BioZ) AFE Absolute Maximum Ratings AVDD to AGND.....................................................-0.3V to +2.0V DVDD to DGND.....................................................-0.3V to +2.0V AVDD to DVDD.....................................................-0.3V to +0.3V OVDD to DGND....................................................-0.3V to +3.6V AGND to DGND....................................................-0.3V to +0.3V CSB, SCLK, SDI, FCLK to DGND........................-0.3V to +3.6V SDO, INTB, INT2B to DGND......... -0.3V to the lower of (3.6V and OVDD + 0.3V) All Other Pins to AGND.......... -0.3V to the lower of (2.0V and AVDD + 0.3V) Maximum Current into Any Pin.........................................±50mA Continuous Power Dissipation (TA = +70°C) 30-Bump WLP (derate 24.3mW/ºC above +70ºC)...........................1945.5mW Operating Temperature Range................................0ºC to +70°C Junction Temperature.......................................................+150°C Storage Temperature Range............................. -65°C to +150°C Lead Temperature (Soldering, 10sec).............................. +300°C Soldering Temperature (reflow)........................................+260°C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Package Information PACKAGE TYPE: 30 WLP Package Code W302L2+1 Outline Number 21-100074 Land Pattern Number Refer to Application Note 1891 THERMAL RESISTANCE, FOUR-LAYER BOARD Junction to Ambient (θJA) 44°C/W Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. Electrical Characteristics (VDVDD = VAVDD = +1.1V to +2.0V, VOVDD = +1.65V to +3.6V, fFCLK = 32.768kHz, LN_BIOZ = 1, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VDVDD = VAVDD = +1.8V, VOVDD = +2.5V, TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS ECG CHANNEL VAVDD = +1.1V, THD < 0.3% AC Differential Input Range VAVDD = +1.8V, THD < 0.3% VAVDD = +1.1V, shift from nominal gain < 2% DC Differential Input Range VAVDD = +1.1V, from VMID, shift from nominal gain < 2% 0Ω source impedance, f = 64Hz, TA = +25˚C (Note 2) With impedance mismatch (Note 3) www.maximintegrated.com -300 +300 ±650 -150 mVP-P mV +150 mV VAVDD = +1.8V, from VMID, shift from nominal gain < 2% CMRR +15 ±32.5 VAVDD = +1.8V Common Mode Input Range Common Mode Rejection Ratio -15 ±550 100 115 dB 77 Maxim Integrated │  3 MAX30001 Ultra-Low-Power, Single-Channel Integrated Biopotential (ECG, R-to-R, and Pace Detection) and Bioimpedance (BioZ) AFE Electrical Characteristics (continued) (VDVDD = VAVDD = +1.1V to +2.0V, VOVDD = +1.65V to +3.6V, fFCLK = 32.768kHz, LN_BIOZ = 1, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VDVDD = VAVDD = +1.8V, VOVDD = +2.5V, TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN BW = 0.05 – 150Hz, GCH = 20x ECG Channel Input Referred Noise TA = +25°C -1 Common-mode, DC Input Impedance (INA) ECG Channel Total Harmonic Distortion THD ECG Channel Gain Setting GCH ECG Channel Gain Error (Excluding Reference) ECG Channel Offset Error µVRMS 3.1 6.6 µVP-P ±0.1 +1 MΩ VAVDD = +1.80V, VIN = 65mVP-P, FIN = 64Hz, GCH = 20x, electrode offset = ±300mV 0.025 % VAVDD = +1.1V, VIN = 30mVP-P, FIN = 64Hz, GCH = 20x, electrode offset = ±300mV 0.3 Programmable, see ECG_GAIN[1:0] 20 to 160 -2.5 +2.5 % VAVDD = +1.1V, GCH = 20x, ECGP = ECGN = VMID -4.5 +4.5 % FHP = 1/(2π x RHPF x CHPF), CHPF = capacitance between CAPP and CAPN 320 ±0.1 % of FSR 18 Bits 125 to 512 SPS 450 55 0.09 Fast Settling Recovery Time CHPF = 10µF, Note: varies by sample rate, see Table 3. 500 Digital Low-Pass Filter Linear phase FIR filter. ECG_RATE = 00, 01 www.maximintegrated.com PSRR 600 kΩ 160 Fast recovery disabled ECG Power Supply Rejection V/V VAVDD = +1.8V, GCH = 20x, ECGP = ECGN = VMID Fast recovery enabled (1.1V) Digital High-Pass Filter nA 1500 Fast recovery enabled (1.8V) Analog High-Pass Filter Slew Current 1.0 Differential, DC Programmable, see ECG_RATE[1:0] RHPF µVP-P 0.46 GΩ ADC Resolution CAPP to CAPN Impedance UNITS µVRMS 45 (Note 4) ADC Sample Rate MAX 4.6 BW = 0.05 – 40Hz, GCH = 20x (Note 2) Input Leakage Current TYP 0.77 DLPF[0:1] = 01 40 DLPF[0:1] = 10 100 DLPF[0:1] = 11 150 Phase-corrected 1st-order IIR filter. DHPF = 1 0.5 Lead bias disabled, DC 107 Lead bias disabled, f = 64Hz 110 µA ms Hz Hz dB Maxim Integrated │  4 MAX30001 Ultra-Low-Power, Single-Channel Integrated Biopotential (ECG, R-to-R, and Pace Detection) and Bioimpedance (BioZ) AFE Electrical Characteristics (continued) (VDVDD = VAVDD = +1.1V to +2.0V, VOVDD = +1.65V to +3.6V, fFCLK = 32.768kHz, LN_BIOZ = 1, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VDVDD = VAVDD = +1.8V, VOVDD = +2.5V, TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS ECG INPUT MUX Pullup/ pulldown DC Lead Off Check DC Lead Off Comparator Low Threshold DC Lead Off Comparator High Threshold Lead Bias Impedance Lead Bias Voltage 5 IMAG[2:0] = 010 10 IMAG[2:0] = 011 20 IMAG[2:0] = 100 50 IMAG[2:0] = 101 100 VTH[1:0] = 11 (Note 5) VMID – 0.50 VTH[1:0] = 10 (Note 6) VMID – 0.45 VTH[1:0] = 01 (Note 7) VMID – 0.40 VTH[1:0] = 00 VMID – 0.30 VTH[1:0] = 11 (Note 5) VMID + 0.50 VTH[1:0] = 10 (Note 6) VMID + 0.45 VTH[1:0] = 01 (Note 7) VMID + 0.40 VTH[1:0] = 00 VMID + 0.30 Lead bias enabled VMID IMAG[2:0] = 001 RBIASV[1:0] = 00 50 RBIASV[1:0] = 01 100 RBIASV[1:0] = 10 200 V V MΩ VAVDD/ 2.15 Lead bias enabled VMAG = 0 0.25 VMAG = 1 0.50 Calibration Voltage Magnitude Single-ended Calibration Voltage Magnitude Error Single-ended (Note 8) Calibration Voltage Frequency Programmable, see FCAL[2:0] Calibration Voltage Pulse Time Programmable, see THIGH[10:0] www.maximintegrated.com nA V mV -3 +3 % 0.0156 to 256 Hz FIFTY = 0 0.03052 to 62.474 ms FIFTY = 1 50 % Maxim Integrated │  5 MAX30001 Ultra-Low-Power, Single-Channel Integrated Biopotential (ECG, R-to-R, and Pace Detection) and Bioimpedance (BioZ) AFE Electrical Characteristics (continued) (VDVDD = VAVDD = +1.1V to +2.0V, VOVDD = +1.65V to +3.6V, fFCLK = 32.768kHz, LN_BIOZ = 1, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VDVDD = VAVDD = +1.8V, VOVDD = +2.5V, TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS BIOIMPEDANCE (BioZ) CHANNEL Signal Generator Resolution Square wave generator DRVP/N Injected Full-Scale Current Programmable, see BIOZ_CGMAG[2:0] DRVP/N Injected Current Accuracy Bits 8 to 96 μAPK Internal bias resistor, see EXT_RBIAS -30 +30 External bias resistor (0.1%, 10ppm, 324kΩ) -10 +10 DRVP/N Injected Current Power Supply Rejection DRVP/N Injected Current Temperatue Coefficient External bias resistor, 32μAP-P, 0 to 70ºC (0.1%, 10ppm, 324kΩ) DRVP/N Compliance Voltage VDRVP - VDRVN Current Injection Frequency Programmable, see BIOZ_FCGEN[3:0] AC Differential Input Range 1 Shift from nominal gain < 1% (VAVDD = 1.1V) Shift from nominal gain < 1% (VAVDD = 1.8V) %