MAXREFDES100#

MAXREFDES100# Datasheet

MAXREFDES100# Health Sensor Platform

Part	Datasheet
MAXREFDES100#	MAXREFDES100# (pdf)

PDF Datasheet Preview
System Board 6312 MAXREFDES100# Health Sensor Platform Maxim MAXREFDES100# health sensor platform is an integrated sensor platform that helps customers evaluate Maxim's complex and innovative medical and high-end fitness solutions. The platform integrates one biopotential analog front-end solution MAX30003 , one pulse oximeter and heart-rate sensor MAX30101 , two human body temperature sensors MAX30205 , one 3-axis accelerometer, one 3D accelerometer and 3D gyroscope, and one absolute barometric pressure sensor. PC and Android applications are provided on the Design Resources tab to help you get up and running quickly. The PC application provides a graphical user interface GUI allowing you to configure and interact with all the sensors over a USB connection. The Android application provides the ability to monitor sensor data over BLE. Instructions for installing and running the applications are found on the details tab. The ARM mbed development environment is supported for developers who want to customize the operation of the platform. The companion MAXREFDES100HDK# programming adapter that ships with the platform provides driverless drag-and-drop programming for firmware updates as well as a virtual UART interface and CMSISDAP compatible debugger. For more details on firmware development and source code examples visit the MAX32620HSP platform page on the ARM mbed developer site. Skin temperature Heart rate Biopotential measurement ECG Motion Rotation Barometric pressure Fitness devices Clinical devices Wearable devices Maxim builds complex and innovative solutions for medical and high-end fitness applications. These solutions are primarily stemming from multiple product lines within Maxim. In order to help customers evaluate the features of these solutions quickly and enable them with their designs, Maxim developed an integrated sensor platform called "hSensor" Platform. With this platform, customers can evaluate our portfolio faster and more easily for multiple use cases. The hSensor platform is also flexible to accommodate our newer solutions in design, or on the roadmap. The hSensor platform supports the measurement of motion, precision skin temperature, and a variety of biopotential measurements, including electrocardiography ECG , electromyography EMG , and electroencephalography EEG . In addition, the hSensor platform also supports a variety of reflective photo plethysmography measurements including pulse oximetry and heart-rate HR detection at three wavelengths, 880nm infrared, IR , 660nm red and 537nm green . The platform supports GUI applications on Windows PCs and devices for simple data collection and visualization. Both direct USB connection through a USB type C connector and Bluetooth low energy BLE radio are supported for configuration and data collections. A direct-to-flash memory mode is supported for data collection. Flash memory read using a USB connection is also implemented. The microcontroller of the platform is programmed with firmware that manages the system, controls the registers of all the devices on the platform, and communicates with the PC GUI. For users who want to customize the firmware for the microcontroller, refer to the firmware development guide for details mbed referenced as MAX32620HSP . The following items are included in the reference design box: MAXREFDES100# board the health-sensor board MAXREFDES100HDK# board the development board for the MAXREFDES100# sensor board Battery holder for the installation of CR2032-type coin-cell battery if a USB cable is not used Two ECG cables users can solder these two ECG cables to the board for ECG measurements USB type-C cable for the connection between a PC and the MAXREFDES100# board Micro-USB cable for the connection between a PC and the MAXREFDES100HDK# board The following use cases can be evaluated using this platform: Fitness Applications Chest-based applications Chest straps with HR Chest straps with HR & ECG Wrist-based applications Smart watches with Optical HR Ear-based applications Headphones with Optical HR Clinical applications Chest-based applications 1 lead-ECG patch for Arrhythmia detection ECG & HR only Skin temperature measurements Finger-based applications Optical SpO2 measurement Ear-based applications Optical HR & SpO2 Head-based applications Optical HR & SpO2 Arm-based applications Arm bands with ECG As with all Maxim reference designs, the bill of materials BOM , schematics, layout files, Gerber files, firmware, and software are all available online. System Diagram Figure The MAXREFDES100# Reference Design Block Diagram. Detailed Hardware Description The MAX32620 microcontroller lies at the center of the hSensor. The following sensors are installed MAX30003 biopotential analog front-end AFE , MAX30205 human body temperature sensor, MAX30101 pulse oximeter and heart-rate sensor, LIS2DH 3-axis accelerometer, LSM6DS3 3D accelerometer and 3D gyroscope, and BMP280 absolute barometric pressure sensor. Power Supplies The hSensor platform can be powered by a USB connection or by a CR2032-type coin cell battery. When both USB and coin cell are attached the power is drawn from the USB due to MOSFET / Schottky diode at Q4. If a coin cell is attached without USB the coin cell is used to power the hSensor platform. The hSensor platform uses a MAX14720 PMIC for the majority of the power management. The PMIC has internal programming such that a button press at SW1 turns the device on. A second press at SW2 turns the PMIC off. The PMIC has a power-on configuration that provides 1.2V, 1.8V and VSYS voltages. Here VSYS comes from SWOUT, which in turn comes from the battery or USB through the PMIC pin SWIN. After power-up, the microcontroller configures the PMIC for a boost voltage of 3.3V, which appears at the HVOUT pin. While the PMIC provides the majority of power management there are some additional power supply chips. The temperature sensors are powered by a MAX8880 LDO, which is powered by HVOUT 3.3V and regulates this down to 2.5V. The PMIC itself is fed by a MAX8881 3.3V LDO when the hSensor is attached to USB. ESD protection is provided by the MAX3205, which attaches to all of the USB signals except for DP/DM, which have ESD protection provided by the MAX32620. Mode selection signals The hSensor platform uses the USB type C connector for debug programming and accessory signals. In some circumstances, these signals would contend with a USB host, so there is circuity to isolate these signals as needed. The isolation is done with MAX4741 low-voltage analog switches. These switches are controlled by a combination of logic gates and MAX9064 single comparators. The MAX9064 has an internal comparison voltage of 0.2V and two of them are used to monitor the USB pins A5 and B5 typically designated as CC/VCONN . The USB A5 and B5 pins have pulldowns on the HSP board, a USB cable has a pullup on only pin A5 and a debug adapter board has pullups on both pin A5 and B5. The following table indicates how the hSensor platform self-configures based on the USB A5 and B5 pins. USB Pin A5 Low High

PDF Datasheet Preview

System Board 6312

MAXREFDES100# Health Sensor Platform

Maxim MAXREFDES100# health sensor platform is an integrated sensor platform that helps customers evaluate Maxim's complex and innovative medical and high-end fitness solutions. The platform integrates one biopotential analog front-end solution MAX30003 , one pulse oximeter and heart-rate sensor MAX30101 , two human body temperature sensors MAX30205 , one 3-axis accelerometer, one 3D accelerometer and 3D gyroscope, and one absolute barometric pressure sensor.

PC and Android applications are provided on the Design Resources tab to help you get up and running quickly. The PC application provides a graphical user interface GUI allowing you to configure and interact with all the sensors over a USB connection. The Android application provides the ability to monitor sensor data over BLE. Instructions for installing and running the applications are found on the details tab. The ARM mbed development environment is supported for developers who want to customize the operation of the platform. The companion MAXREFDES100HDK# programming adapter that ships with the platform provides driverless drag-and-drop programming for firmware updates as well as a virtual UART interface and CMSISDAP compatible debugger. For more details on firmware development and source code examples visit the MAX32620HSP platform page on the ARM mbed developer site.

Skin temperature Heart rate Biopotential measurement ECG Motion Rotation Barometric pressure

Fitness devices Clinical devices Wearable devices

Maxim builds complex and innovative solutions for medical and high-end fitness applications. These solutions are primarily stemming from multiple product lines within Maxim. In order to help customers evaluate the features of these solutions quickly and enable them with their designs, Maxim developed an integrated sensor platform called "hSensor" Platform. With this platform, customers can evaluate our portfolio faster and more easily for multiple use cases. The hSensor platform is also flexible to accommodate our newer solutions in design, or on the roadmap.

The hSensor platform supports the measurement of motion, precision skin temperature, and a variety of biopotential measurements, including electrocardiography ECG , electromyography EMG , and electroencephalography EEG . In addition, the hSensor platform also supports a variety of reflective photo plethysmography measurements including pulse oximetry and heart-rate HR detection at three wavelengths, 880nm infrared, IR , 660nm red and 537nm green .

The platform supports GUI applications on Windows PCs and devices for simple data collection and visualization. Both direct USB connection through a USB type C connector and Bluetooth low energy BLE radio are supported for configuration and data collections.

A direct-to-flash memory mode is supported for data collection. Flash memory read using a USB connection is also implemented.

The microcontroller of the platform is programmed with firmware that manages the system, controls the registers of all the devices on the platform, and communicates with the PC GUI. For users who want to customize the firmware for the microcontroller, refer to the firmware development guide for details mbed referenced as MAX32620HSP .

The following items are included in the reference design box:

MAXREFDES100# board the health-sensor board

MAXREFDES100HDK# board the development board for the MAXREFDES100# sensor board

Battery holder for the installation of CR2032-type coin-cell battery if a USB cable is not used

Two ECG cables users can solder these two ECG cables to the board for ECG measurements USB type-C cable for the connection between a PC and the MAXREFDES100# board

Micro-USB cable for the connection between a PC and the MAXREFDES100HDK# board

The following use cases can be evaluated using this platform:

Fitness Applications

Chest-based applications Chest straps with HR Chest straps with HR & ECG

Wrist-based applications Smart watches with Optical HR

Ear-based applications Headphones with Optical HR

Clinical applications

Chest-based applications 1 lead-ECG patch for Arrhythmia detection ECG & HR only Skin temperature measurements

Finger-based applications Optical SpO2 measurement

Ear-based applications Optical HR & SpO2

Head-based applications Optical HR & SpO2

Arm-based applications Arm bands with ECG

As with all Maxim reference designs, the bill of materials BOM , schematics, layout files, Gerber files, firmware, and software are all available online.

System Diagram

Figure The MAXREFDES100# Reference Design Block Diagram.

Detailed Hardware Description

The MAX32620 microcontroller lies at the center of the hSensor. The following sensors are installed MAX30003 biopotential analog front-end AFE , MAX30205 human body temperature sensor, MAX30101 pulse oximeter and heart-rate sensor, LIS2DH 3-axis accelerometer, LSM6DS3 3D accelerometer and 3D gyroscope, and BMP280 absolute barometric pressure sensor. Power Supplies The hSensor platform can be powered by a USB connection or by a CR2032-type coin cell battery. When both USB and coin cell are attached the power is drawn from the USB due to MOSFET / Schottky diode at Q4. If a coin cell is attached without USB the coin cell is used to power the hSensor platform. The hSensor platform uses a MAX14720 PMIC for the majority of the power management. The PMIC has internal programming such that a button press at SW1 turns the device on. A second press at SW2 turns the PMIC off. The PMIC has a power-on configuration that provides 1.2V, 1.8V and VSYS voltages. Here VSYS comes from SWOUT, which in turn comes from the battery or USB through the PMIC pin SWIN. After power-up, the microcontroller configures the PMIC for a boost voltage of 3.3V, which appears at the HVOUT pin.

While the PMIC provides the majority of power management there are some additional power supply chips. The temperature sensors are powered by a MAX8880 LDO, which is powered by HVOUT 3.3V and regulates this down to 2.5V. The PMIC itself is fed by a MAX8881 3.3V LDO when the hSensor is attached to USB.

ESD protection is provided by the MAX3205, which attaches to all of the USB signals except for DP/DM, which have ESD protection provided by the MAX32620.

Mode selection signals

The hSensor platform uses the USB type C connector for debug programming and accessory signals. In some circumstances, these signals would contend with a USB host, so there is circuity to isolate these signals as needed.

The isolation is done with MAX4741 low-voltage analog switches. These switches are controlled by a combination of logic gates and MAX9064 single comparators.

The MAX9064 has an internal comparison voltage of 0.2V and two of them are used to monitor the USB pins A5 and B5 typically designated as CC/VCONN . The USB A5 and B5 pins have pulldowns on the HSP board, a USB cable has a pullup on only pin A5 and a debug adapter board has pullups on both pin A5 and B5.

The following table indicates how the hSensor platform self-configures based on the USB A5 and B5 pins.

USB Pin A5 Low High

More datasheets: MOCD217R1VM | MOC217M_F132 | MOC217R2M_F132 | MOC215M | 610D | 610F | 610E | 610G | 610H | DDE50SA197

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MAXREFDES100# Datasheet file may be downloaded here without warranties.

Datasheet ID: MAXREFDES100# 647462