TI HealthTech

More than ever, TI HealthTech is passionate about taking professional treatments beyond the hospital and into physician offices and patient homes. Both clinical and home health equipments, such as pulse oximetry and blood glucose meters, are challenged to extend battery life and make devices more wearable and accessible – without sacrificing accuracy or reliability. By developing innovative ways to increase integration, lower noise, and lower power consumption, TI components make healthcare more flexible, affordable and accessible.

AFE4490 - Integrated AFE for Pulse Oximeters

The AFE4490 is a fully-integrated analog front-end (AFE) that is ideally suited for pulse-oximeter applications. The device consists of a low-noise receiver channel with a 22-bit analog-to-digital converter (ADC), an LED transmit section, and diagnostics for sensor and LED fault detection. The AFE4490 is a very configurable timing controller. This flexibility enables the user to have complete control of the device timing characteristics. To ease clocking requirements and provide a low-jitter clock to the AFE4490, an oscillator is also integrated that functions from an external crystal. The device communicates to an external microcontroller or host processor using an SPI™ interface.

Tools: AFE4490SPO2EVM Evaluation Module and User's Guide

Video: In-depth look at Heart Rate Monitor Chest Strap

BQ2026 - One Time Programmable Memory for Medical Accessory Identification

The BQ2026 is a 1.5K-bit serial EPROM containing a factory-programmed, unique 48-bit identification number, 8-bit family code, and a 64-bit status register. The BQ2026 SDQ interface requires only a single connection and a ground return. The SDQ pin is also the sole power source for the BQ2026. The small surface-mount package option saves printed-circuit-board space, while the low cost makes it ideal for applications such as battery pack configuration parameters, record maintenance, asset tracking, product-revision status, and access-code security.

Tools: BQ2026EVM Evaluation Module and User's Guide

ADS1299 - Low-Noise, 8-Channel, 24-Bit Analog Front-End for EEG

The ADS1299 is a low-noise, multichannel, simultaneous-sampling, 24-bit, delta-sigma (ΔΣ) ADC with a built-in programmable gain amplifier (PGA), internal reference, and an onboard oscillator. The ADS1299 incorporates all commonly-required features for electroencephalogram (EEG) applications. With its high levels of integration and exceptional performance, the ADS1299 enables the creation of scalable medical instrumentation systems at significantly reduced size, power, and overall cost.

Tools: ADS1299EEG-FE Evaluation Kit and User's Guide

ADS1298 - 8-Channel, 24-Bit Analog-To-Digital Converter With Integrated ECG Front End

The ADS1298 is part of a family of multichannel, simultaneous sampling, 24-bit, delta-sigma (ΔΣ) ADCs with built-in programmable gain amplifiers (PGAs), internal reference, and an onboard oscillator.This family incorporates all of the features that are commonly required in medical electrocardiogram (ECG) and EEG applications. With its high levels of integration and exceptional performance, this product family enables the development of scalable medical instrumentation systems at significantly reduced size, power, and overall cost.

Associated Products: ADS1296, ADS1294, ADS1298R, ADS1296R, ADS1294R

Tools: ADS1298ECG-FE Evaluation Kit and User's Guide

Video: In-depth look at Heart Rate Monitor Chest Strap

Application Notes: Improving Common Mode Rejection Using Right Leg Drive

ADS1198 - 8-Channel, 16-Bit Analog-To-Digital Converter With Integrated ECG Front End

The ADS1198 is part of a family of multichannel, simultaneous sampling, 16-bit, delta-sigma (ΔΣ) ADCs with a built-in programmable gain amplifier (PGA), internal reference, and an onboard oscillator. It has a flexible input multiplexer per channel that can be independently connected to the internally-generated signals for test, temperature, and lead-off detection. Additionally, any configuration of input channels can be selected for derivation of the right leg drive (RLD) output signal. The ADS1198 operates at data rates as high as 8kSPS, thereby allowing the implementation of software pace detection. Lead-off detection can be implemented internal to the device, either with a pull-up/pull-down resistor or an excitation current sink/source. Three integrated amplifiers generate the Wilson Center Terminal (WCT) and the Goldberger terminals (GCT) required for a standard 12-lead medical ECG.

Associated Products: ADS1196, ADS1194

Tools: ADS1198ECG-FE Evaluation Kit and User's Guide

Application Notes: Analog Front End Design for ECG Systems using Delta Sigma ADC's

ADS1293 - 3-Channel, Low Power, 24-Bit Analog Front End for ECG

The ADS1293 incorporates all features commonly required in portable, low-power medical, sports and fitness ECG applications. With high levels of integration and exceptional performance, the ADS1293 enables the creation of scalable medical instrumentation systems at significantly reduced size, power, and overall cost. The ADS1293 features three high-resolution channels capable of operating up to 25.6ksps. Each channel can be independently programmed for a specific sample rate and bandwidth allowing users to optimize the configuration for performance and power. All input pins incorporate an EMI filter and can be routed to any channel via a flexible routing switch. Flexible routing also allows independent lead-off detection, right leg drive, and Wilson/Goldberger reference terminal generation without the need to reconnect leads externally. A fourth channel allows external analog pace detection for applications that do not utilize digital pace detection.

Associated Products: ADS1291, ADS1292

Tools: ADS1293EVM Evaluation Kit and User's Guide

Application Notes: Understanding Lead-off Detection in ECG

MSP430FG439 - 16-Bit Ultra-Low-Power MCU for BGM with 60KB Flash, 2KB RAM, 12-Bit ADC, Dual DAC, DMA, 3 OPAMP, 128 Seg LCD

The MSP430FG439 is part of a family of MCUs that features different sets of peripherals targeted for various applications. The architecture, combined with five low power modes is optimized to achieve extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that attribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 6µs. The MSP430FG43x series are microcontroller configurations with two 16-bit timers, a high performance 12-bit ADC, dual 12-bit digital to analog converter, three configurable operational amplifiers, one universal synchronous/asynchronous communication interface (USART), DMA, 48 I/O pins, and a liquid crystal display (LCD) driver.

Associated Products: MSP430FG438, MSP430FG437

Tools: MSP430FG43x Code Examples

Video: Using the MSP430 in Portable Medical Applications

Application Notes: Microcontrollers in Blood Glucose Meters

The consumer market is focused on personal fitness more than ever before. Heart rate monitors, body-worn fitness trackers, and body composition weigh scales are just a few of the options out there for athletes and fitness enthusiasts to measure and monitor personal fitness both during exercise and daily activity. By developing innovative ways to increase integration, lower power consumption, and provide smart connectivity, TI components makes fitness more flexible, affordable, and accessible.

AFE4300 - Weigh Scale / Body Composition Analog Front End

The AFE4300 is a low-cost analog front-end (AFE) incorporating two separate signal chains: one chain for weight-scale (WS) measurement and the other for body composition measurement (BCM) analysis. A 16-bit, 860-SPS analog-to-digital converter (ADC) is multiplexed between both chains. The weight measurement chain includes an instrumentation amplifier (INA) with the gain set by an external resistor, followed by a 6-bit digital-to-analog converter (DAC) for offset correction, and a circuit to drive the external bridge/load cell with a fixed 1.7 V for ratiometric measurements.

Tools: AFE4300EVM-PDK Evaluation Module and User's Guide

Video: AFE4300 Weigh Scale / Body Composition Front End

ADS1192 - 2 Channel, 16-Bit Analog Front End for Heart Rate Measurement

The ADS1192 is a multichannel, simultaneous sampling, 16-bit, delta-sigma (ΔΣ) ADC with a built-in programmable gain amplifier (PGA), internal reference, and an onboard oscillator. It incorporates all of the features that are commonly required in portable, low-power medical electrocardiogram (ECG), sports, and fitness applications. With its high levels of integration and exceptional performance, this product enables the creation of scalable medical instrumentation systems at significantly reduced size, power, and overall cost.

Associated Products: ADS1191, ADS1291, ADS1292, ADS1292R

Tools: ADS1192ECG-FE Evaluation Module and User's Guide

MSP430FG439 - 16-Bit Ultra-Low-Power MCU for BGM with 60KB Flash, 2KB RAM, 12-Bit ADC, Dual DAC, DMA, 3 OPAMP, 128 Seg LCD

The Texas Instruments MSP430 ultra-low-power microcontroller features different sets of peripherals targeted for various applications. The architecture, combined with five low power modes is optimized to achieve extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that attribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 6µs. The MSP430FG43x series are microcontroller configurations with two 16-bit timers, a high performance 12-bit ADC, dual 12-bit DAC, three configurable operational amplifiers, one universal synchronous/asynchronous communication interface (USART), DMA, 48 I/O pins, and a liquid crystal display (LCD) driver.

Associated Products: MSP430FG438, MSP430FG437

Tools: MSP430FG43x Code Examples

Video: Using the MSP430 in Portable Medical Applications

Application Notes: Heart-Rate and EKG Monitor Using the MSP430FG439

CC2541 - 2.4-GHz Bluetooth® low energy and Proprietary System-on-Chip

The CC2541 is a power-optimized true system-on-chip (SoC) solution for both Bluetooth low energy and proprietary 2.4-GHz applications. It enables robust network nodes to be built with low total bill-of-material costs. The CC2541 combines the excellent performance of a leading RF transceiver with an industry-standard enhanced 8051 MCU, in-system programmable flash memory, 8-KB RAM, and many other powerful supporting features and peripherals. The CC2541 is highly suited for systems where ultralow power consumption is required. This is specified by various operating modes. Short transition times between operating modes further enable low power consumption.

Associated Products: CC2540

Tools: CC2541 Evaluation Module Kit

Video: TI HealthTech Sensor Hub with Next Generation Watch Demo

Application Notes: Bluetooth Low Energy Solutions Page

MSP430F5528 - 16-Bit Ultra-Low-Power Microcontroller, 128KB Flash, 8KB RAM, USB, 12Bit ADC, 2 USCIs, 32Bit HW MPY

The MSP430F5528 is part of a family of MCUs that has configurations with integrated USB and PHY supporting USB 2.0, four 16-bit timers, a high-performance 12-bit ADC, two universal serial communication interfaces (USCI), hardware multiplier, DMA, real-time clock module with alarm capabilities, and 63 I/O pins. The MSP430F5528, MSP430F5526, MSP430F5524, and MSP430F5522 include all of these peripherals, but have 47 I/O pins.

Associated Products: MSP430F5529, MSP430F5527, MSP430F5525, MSP430F5521, MSP430F5526, MSP430F5524, MSP430F5522

Tools: MSP430F5529 USB Experimenter's Board

Video: TI HealthTech Sensor Hub with Next Generation Watch Demo

Application Notes: Power Management Solutions for Ultra-Low Power MSP430

Medical imaging technology is continually evolving and advancing, all with the goal of enabling early diagnosis, prevention, and patient comfort. Medical imaging modalities such as ultrasound, x-ray and MRI all have complex processing and performance needs that push the limits of what is possible. By developing innovative ways to increase integration, lower noise, and lower power consumption, TI components make high performance medical imaging more flexible, affordable and accessible.

AFE5809 - Fully Integrated, 8-channel. Ultrasound Analog Front End with Passive CW Mixer & Digital I/Q Demodulation

Click to enlarge

The AFE5809 is a highly integrated analog front end (AFE) solution specifically designed for ultrasound systems in which high performance and small size are required. The AFE5809 integrates a complete time-gain-control (TGC) imaging path and a continuous wave Doppler (CWD) path. It also enables users to select one of various power/noise combinations to optimize system performance. Therefore, the AFE5809 is a suitable ultrasound AFE solution not only for high-end systems, but also for portable ones. AFE5809 also includes a digital in-phase and quadrature (I/Q) demodulator and a low-pass decimation filter. The main purpose of the demodulation block is to reduce the LVDS data rate and improve overall system power efficiency.

Associated Products: AFE5808A, AFE5807, AFE5801

Tools: AFE5809EVM Evaluation Module and User's Guide

Video: AFE5809 Fully Integrated 8 Channel Ultrasound AFE

VCA5807 - Fully Integrated, 8-channel, Voltage Controlled Amplifier with Passive CW Mixer for Ultrasound Rx

Click to enlarge

The VCA5807 is an integrated voltage controlled amplifier (VCA) specifically designed for ultrasound systems in which high performance and small size are required. The VCA5807 integrates a complete TGC imaging path and a CWD path. It also enables users to select one of various power/noise combinations to optimize system performance. Therefore, the VCA5807 is a suitable ultrasound AFE solution not only for high-end systems, but also for portable ones as well.

Associated Products: ADS5295

Tools: VCA5807 Evaluation Module and User's Guide

Application Notes: Ultrasound Flyer

ADS5295 - Octal Channel 12-Bit, 100MSPS High-SNR and Low-Power ADC for Ultrasound Rx

The ADS5295 is a low-power, 12-bit, 100-MSPS, 8-channel analog-to-digital converter (ADC). Low power consumption and integration of multiple channels in a compact package make the device attractive for very high channel count data acquisition systems. The device integrates an internal reference trimmed to accurately match across devices. Best performance is expected to be achieved through the internal reference mode. However, the device can be driven with external references as well. Several digital functions that are commonly used in systems are included in the device. These functions include a low-frequency suppression mode, digital filtering options, and programmable mapping.

Associated Products: ADS5294, ADS5292

Tools: ADS5295EVM Evaluation Module and User's Guide

Application Notes: A Glossary of Analog-to-Digital Specifications and Performance Characteristics

ADS5263 - Quad Channel 16-Bit, 100-MSPS 84.6dB SNR ADC for MRI

Using CMOS process technology and innovative circuit techniques, the ADS5263 is designed to operate at low power and give very high SNR performance with a 4-Vpp full-scale input. Using a low-noise 16-bit front-end stage followed by a 14-bit ADC, the device gives 85-dBFS SNR up to 10 MHz and better than 80-dBFS SNR up to 30 MHz. The ADS5263 has a digital processing block that integrates several commonly used digital functions, such as digital gain (up to 12 dB). It includes a digital filter module that has built-in decimation filters (with low-pass, high-pass and band-pass characteristics). The decimation rate is also programmable (by 2, by 4, or by 8). This makes it very useful for narrow-band applications, where the filters can be used to improve SNR and knock-off harmonics, while at the same time reducing the output data rate.

Tools: ADS5263EVM Evaluation Module and User's Guide

Application Notes: High Speed Data Converter Guide

DDC264 - 64-Channel, Current-Input Analog-to-Digital Converter for CT and X-ray applications

Click to enlarge

The DDC264 is a 20-bit, 64-channel, current-input ADC. It combines both current-to-voltage and A/D conversion so that 64 separate low-level current output devices, such as photodiodes, can be directly connected to its inputs and digitized. For each of the 64 inputs, the DDC264 uses the proven dual switched integrator front-end. This configuration allows for continuous current integration: while one integrator is being digitized by the onboard ADC, the other is integrating the input current. This architecture provides both a very stable offset and a loss-less collection of the input current. Adjustable integration times range from 160µs to 1s, allowing currents from fAs to µAs to be continuously measured with outstanding precision.

Associated Products: DDC118, DDC232

Tools: DDC264EVM Evaluation Module and User's Guide

AFE0064 - 64 Channel Analog Front End for Digital X-Ray Detector

The AFE0064 is a 64-channel AFE designed to suit the requirements of flat panel detector based digital X-ray systems. The device includes 64 integrators, a PGA for full scale charge level selection, correlated double sampler, 64 as to 2 multiplexer, and two differential output drivers. Hardware selectable Integration polarity allows integration of a positive or negative charge and provides more flexibility in system design. In addition, the device features TFT (Thin Film Transistor from Flat Panel Detector) charge injection compensation. This feature helps maximize the usable signal charge range of the device.

Associated Products: DDC316

Tools: AFE0064 IBIS Model