CMCP with Adaptive CM Cancelling Stable and Simple Circuit Structure and Operation CM signal suppression loop operation Adaptive CM cancelling loop added for TCMRR improvement Using LMS algorithm and differential displacement current control, CM-to-DM conversion minimized even in the presence of circuit and electrode mismatches Block Diagram Pros No stability issue caused by the variation… Continue reading CMCP with Adaptive CM Cancelling
Author: vitalic
Pseudo Right-leg-drive (RLD)
Pseudo Right-leg-drive (RLD) Stable and Simple Circuit Structure and Operation VCM extracted at the output of the front-end LNA According to VCM, CM current sources at the input controlled by the adaptive bias circuit CM current provided to absorb CM fluctuations at the LNA input Block Diagram Pros No stability issue caused by the variation… Continue reading Pseudo Right-leg-drive (RLD)
NMS4112
NMS4112 Low Power Electrochemical Sensor Readout Integrated Circuit (ROIC) Features Single Battery Operation Level & Time Variant Potential Generation Precise Current Measurement (~500pA) 2/3-termial Electrochemical Sensor 2-channel Input (2 Working Elctrode) Chronoamperometry/Amperometric/Potentiometric I2C/SPI Interface Sensor Detection Temperature Sensor Low Power Operation : periodic wakeup & shutdown NVM for configuration storage Working Voltage : 1.2V ~… Continue reading NMS4112
NMS4150
NMS4150 Electrochemical Sensor SoC: Scheduled for release in 2Q of 2025 Overall Features Level & time variant potential generation Single Battery Operation Level & Time Variant Potential Generation Precise Current Measurement (~500pA) 2/3-termial Electrochemical Sensor 2-channel Input (2 Working Elctrode) Chronoamperometry/Amperometric/Potentiometric I2C/SPI Interface Sensor Detection Temperature Sensor Low Power Operation : periodic wakeup & shutdown… Continue reading NMS4150
NMX1210
NMX1210 Proven IP #4 Overall Features Time-based Converter Multiple input channels Input sensor type: R, C, I Conv. time: min. 1msec Output resolution: 8~20 bits Core 1.2V, I/O 3.3V Humidity, Level Sensing, PPG Block Diagram Back to Proven IP
NMI1000
NMI1000 CMOS Image Sensor for Capsule Endoscopy Features 640/320/160 Resolution Single or Dual Camera 8bit Bayer Format HBC (9Mbps) / RF (18Mbps) Data Transfer PFC/EFC Mode for Variable Frame Rate Auto Exposure LED Control Dynamic Black Level Compensation I2C Master & Slave IMU/EEPROM/TRX Control Max 5fps @640, 17fps @320, 30fps @160 Current : 1.6/1.1mA(Active, RF/HBC),… Continue reading NMI1000
NEMESIS will present at LSI Europe ’24 in Portugal
NEMESIS to Present Cutting-edge Biosignal Processing Technologies at LSI Europe ’24 Sintra, Portugal – [9/18/2024] – NEMESIS, a leading South Korean biosignal processing semiconductor solutions provider for small-size diagnostic digital healthcare applications, is thrilled to announce its participation in the prestigious LSI Europe ’24 event. The event attracts over 1,000 Medtech leaders including innovators, strategics,… Continue reading NEMESIS will present at LSI Europe ’24 in Portugal
For FDA approval, what certification do you need when you use NMS4110 as part of a medical device?
For FDA approval, what certification do you need when you use NMS4110 as part of a medical device? NEMESIS’ NMS4110 is a low-power, high-performance electrochemical read-out IC. However, NMS4110 itself does not typically achieve FDA approval directly because FDA approvals are usually granted to complete medical devices, not individual components like ROICs. Manufacturers who use… Continue reading For FDA approval, what certification do you need when you use NMS4110 as part of a medical device?
Analog Front-End Design Techniques for Robust Health Monitoring and Biosensing: #1 Interfacing with Sensors
To talk about the analog front-end circuits interfacing with sensors, we may need to make the definition of sensors clear first. Sensors are transducers that carry out a “transduction” operation. “Transduction” means converting the signal or energy in one physical form to the signal or energy in another physical form. Therefore, the sensors that we… Continue reading Analog Front-End Design Techniques for Robust Health Monitoring and Biosensing: #1 Interfacing with Sensors