Vital signs healthcare sensor interface

Overview

EN62020 can be interfaced with an array of ultra low-power biometric sensor front-ends for vital signs monitoring for healthcare and wearable applications. It is designed to be used alongside an edge processor or communication devices.

ENS62020 supports the accurate and reliable measurement of ECG, optical signals (PPG (HR), SpO2, Near InfraRed Spectroscopy, Fluorescent Glucose Sensing), temperature and differential capacitance

Key Features

Two photodiode drivers and photodetector read outs
Two differential ECG sensor channels
One highly sensitive capacitive sensor channel
Temperature sensor with high resolution at medically relevant range
Integrated 15b resolution ADC, with integrated reference
Integrated power management with an operating voltage 1.2V to 3.6V, flexible IO voltage
Optional energy power harvesting from NFC
Low-power: ~10s µA / sensor. Configurable duty cycling, sample rate for further power savings
Digital controller for highly configurable sensor selection, duty cycling and scheduling
SPI interface to external host processor
Interrupts for data streaming and synchronisation
Local clock generation or clock from host
Supply voltage 1.1V core and 1.8V IO control
-40°C to 85°C ambient operation
3.3 x 3.3mm die for flip-chip bumping

Benefits

Two Channels of multi-lead electrocardiogram (ECG)
Temperature sensor
Differential capacitive sensor channel
Two pulsed photocurrent measurement inputs and two LED drivers
8-channels, 1kSps, incremental SD ADC
Low-cost CMOS technology
Low power per channel
Silicon proven.

Block Diagram

Applications

Smart Ring
Smart Watch
Vital signs monitoring
Disposable medical sensors
Sports and healthcare wearable devices
General current, voltage or capacitive sensing
MEMS sensor interfacing

Deliverables

Evaluation kit
Samples
Datasheet
User guide
Graphical User Interface

Technical Specifications

Foundry, Node

Any

Maturity

Silicon proven

Availability

Now

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