LINEAR_DIMENSIONS LNDSP17

DATASHEET
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LNDSP17
Complete Physiological Monitoring System
& Fusion Development Kit
GENERAL DESCRIPTION
FEATURES
The engine underneath the fancy packaging of leading physiological
fusion monitors, the LNDSP17 is a complete fitness targeted
physiological diagnostic and acquisition fusion solution.
The
LNDSP17 includes all the components required to quickly launch a
stand-alone commercial physiological monitoring fusion product
offering. Linear Dimensions supplies all the electronics, software,
algorithms, and support in a development kit to quickly implement a
full solution. Linear analysis algorithms which work with the SP17
may be located in the provided microcontroller (MSP430), on a PC
or mobile device, or OEMs may utilize Linear Dimensions’ Cloud
service through M2M cellular, Bluetooth LE, WIFI or ANT+.
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The LNDSP17 includes a high CMRR terminator, INA, 6 order low
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pass and 8 order high pass Bessel filters, uC, dataconverters, and
an advanced signal extraction system (PEAL) to eliminate outside
noise, find signals within noisy environments and enable fusion
analysis. The system can be used for measuring or acquiring:
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ECG heart or EEG waveforms
Accurate beat rate
galvanic skin response
skin impedance
temperature
activity & time specific notifications
motion (optional module)
location (optional module)
fusion of the above
Even extremely small signals (<50uA) embedded in noisy signals
whose magnitude is hundreds of times bigger, residing in the same
spectrum, may be reliably acquired. Various communications links
allow continuous monitoring, analysis, extraction and feedback. Let
Linear Dimensions customize a mobile or PC dashboard for your
application and utilize Linear’s advanced fusion algorithms, the
PEAL system, to provide value and differentiation for your products.
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Two or Three Electrode Interface
Operates from as little as 2.7V Vin
Optional Right Leg Drive
123db CMRR Termination
Instrumentation Amplifier (INA)
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6 & 8 Order Bessel Filters
<300uA Average Current
Signal Acquisition:
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Automatic or Programmed Gain Control (AGC)
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Time Constant Accelerator for Quick Baseline
Recapture
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Common Mode Driver Terminal
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AC Only or AC/DC Feedback
Capable of Measuring signals <50uV
PEAL extraction, analysis & fusion system
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Finds physiological data in noisy environments
even if signal is 100’s of times smaller than
noise, and residing in the same spectrum
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Penetrates real world noise such as muscle
noise, lighting, electrode connect & disconnect
AGC allows inputs from anywhere on the body
Includes SD Card and/or optional Bluetooth LE,
ANT+, WIFI, M2M cellular or other RF Interfaces
Cloud, cell phone, tablet, microcontroller or PC
algorithm solutions available
Let Linear Dimensions develop custom mobile
applications and fusion solutions with you
APPLICATIONS
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Portable Heart Rate Equipment
Portable Fitness & Wellness Products
Non-Critical Diagnostics
DEVELOPMENT KIT INCLUDES
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Two sided electronic board
Filter design software
GUI interface software
Programming interface
Extraction, analysis & fusion algorithm
 Finds signals in noisy environments
 Learning filter software
 Algorithm runtimes (PEAL system)
Power management subsystems
Microcontroller, dataconverter
Accelerometer & location services (optional)
SD Card and/or Streaming RF Interface(s)
 Linear Dimensions Semiconductor Inc.  22620 Ricardo Rd, Cupertino CA 95014 USA  tel 312.321.1810  fax 312.321.1830  www.lineardimensions.com 
Front
Back
Figure 2 – SP17 Complete Physiological Fusion System including uC based PEAL
Figure 2 shows the included electronic system which
can be purchased from Linear Dimensions
Semiconductor in production quantities. All that is
required is adding a housing and electrodes and the
system is ready to be used in real world applications.
The LNDSP17 is meant to be used with Linear
Dimensions’ PEAL system which provides a variety of
tools for acquisition, interrogation, analysis and fusion
of measured data. Custom dashboards may be
created and reside on a local display using the on
board microcontroller (TPS430), or may reside on a
mobile, tablet, PC device.
Alternatively, Linear Dimensions’ Cloud service may
be utilized to peform customized extraction, analysis
and fusion of data. PEAL provides OEMs the ability
to differentiate and utilize measured data in their own
way to provide value in their specific application
spaces. Customize fusion & fashboards available.
An example PEAL implementation is shown in Figure
1 and Figure 3. The signal was being acquired from
a human arm, a very difficult place to acquire signals.
The PEAL algorithms were able to cut through noise
from motion and location artifacts even though the
noise was hundreds of times larger than the signal of
interest and had content in the same spectrum. In fact
the heart waveform shown below was captured from
an arm even though its magnitude was <50uV, and an
athlete was running at full speed (>8 miles/hr). His
arms were swinging, electrodes were connecting and
disconnecting, 60Hz signals and EMI from the running
track were radiating and being coupled into the SP17
device.
The muscle noise amplitude was much
greater than the heart rate amplitude producing
interference in the same spectrum as the heart rate
waveform. Additionally, the baseline would move
around, regularly saturate and then recover. The
result from the PEAL system after filtering, baseline
extraction, and adaptive filtering is shown below. No
heart rate was discernible from the data with the naked
eye prior to providing the signal to the system. The
heart signal below was combined with other data to
produce customized fusion data for customers.
Figure 3 – An example of a fusion measurement made by the SP17/PEAL combination is shown above. A heart waveform is
acquired from an extremely small heart waveform surrounded by a very noisy signal infected with multiple noise sources. Red
plus signs indicate identification of beat by PEAL.
 Linear Dimensions Semiconductor Inc.  22620 Ricardo Rd, Cupertino CA 95014 USA  tel 312.321.1810  fax 312.321.1830  www.lineardimensions.com 