High Speed ADC Marketing: The Year Ahead - SpectroNet

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26 Οκτ 2013 (πριν από 3 χρόνια και 9 μήνες)

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Wie Halbleitertechnologie die
Medizintechnik revolutioniert

Design & Elektronik Developers' Forum:

"Embedded Goes Medical"



Leipzig, September 2009



Matthias Feulner

Marketing Manager

m
-
feulner2@ti.com

2

Semiconductors Impact

1980s

1990s

2000 and beyond

Computing
transformed

Communications
transformed

Healthcare
transformed

Computing

revolution

Communications

revolution

Healthcare

revolution

3

Single
-
chip GPS

Wireless LAN

Bluetooth
®

+


FM Single Chip

GSM/GPRS

Single Chip

LoCosto


EDGE single
-
chip
eCosto


1990

2000

2008

Making devices smaller…

4

…, more personal…

Chronic Disease
Management

GSM/GPRS

Bluetooth /

BLE

Bluetooth /

BLE

Zigbee /

802.15.4

Weight

scale

Blood

pressure
monitor

Smart

bandage

Vital Signs Monitoring

800 MHz /

900 MHz ISM

2.4GHz ISM

(Zigbee/BT/

802.15.4/ULP)



Weight Management

5

Smart Bandage


Body worn monitoring devices


Chip + Sensor + printed battery in a low cost DISPOSABLE package



Real time



Intelligent



Continuous



Wireless

… sensing and diagnosing

For in
-
hospital and out
-
of
-
hospital continuous wireless monitoring of
vital signs and other physiological data directly off the body



Patient monitor

EVOLUTION

Wireless portable patient
monitor

ECG / Heart rate

Temperature

REVOLUTION

Respiration

Location

Activity / Motion

6


ECG


EEG


Blood oxygen
(pulse oximeter)


Blood pressure


Temperature


Ventilation/
respiration


Defibrillators


Implantable
devices

Diagnostic,

patient monitoring

and therapy

Innovation Across all Medical Segments


Digital
thermometers


Blood glucose
monitor


Blood pressure
monitor


Insulin pumps


Heart rate
monitors


Audiology (digital
hearing aids)

Consumer

medical devices


Laboratory
equipment


Dialysis machines


Analytical
instruments


Surgical
instruments


Dental instruments


Ultrasound


CT


MRI


X
-
Ray


Other imaging
(nuclear, positron
emission
tomography)

Medical

imaging

Medical

instruments

Doctor’s office

+

Patient’s home

Uncomfortable

Comfortable

+

Radiology center

In the field

Laboratory

Innovation

7

Addressing the Major Challenges


Smaller & Lighter



More Power
-
Efficient



More Cost
-
Efficient



More Connected



More Portable

8

Addressing the Major Challenges

-

Consumer Medical Case

Smaller & Lighter



More Power
-
Efficient



More Cost
-
Efficient



More Connected



More Portable

9

Consumer Medical Devices
-

Achieving Highest Level of Integration and Cost Efficiency



ADC

Bio

Sensor

VRef

MCU

LCD Display

Op Amp

DAC

Signal

Processing

LCD

Driver

Op Amp

MSP430FG439

10

Heart rate monitor based on SoC
-

Achieving Highest Level of Integration



Single chip SoC integration results in:


over 50% size reduction (from 8+ chips to a single MSP430FG439 micro
controller)


~50% cost reduction on semiconductors, circuit board and mechanical
housing


10x increased battery life time, allowing lifetime sealed medical units with
small coin cell batteries.

11

Addressing the Major Challenges


-

Portable Diagnostics & Therapy Case

Smaller & Lighter



More Power
-
Efficient



More Cost
-
Efficient



More Connected



More Portable

12

Portability for ECG Systems

Portable ECG images courtesy of Corscience

13

Protect

Amp

Amp

Amp

Amp

Protect

RLD

Protect

Amp

Amp

Protect

Amp

Amp

Protect

Amp

Amp

Protect

Amp

Amp

Protect

Amp

Amp

Protect

Amp

Amp

Protect

Amp

Amp

R(RA)

L(LA)

F(LL)

C1(V1)

C2(V2)

C3(V3)

C4(V4)

C5(V5)

C6(V6)

Protect

Amp

Amp

Lead Off

Calibration

Temp

Ref

Lead Selection

Lead Selection

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

IA

BT

BT

m

C

MSP430

USB

USB

SD

SD

BUTTON I/F

BUTTON I/F

Amp

Amp

RS23

2

CF

CF

Charge

r

Charge

r

PSU

PSU

Monitor

Monitor

Disp

Lamp

Disp

Lamp

+

+

RTC

RTC

PACE DETECT

3x Comparator

Traditional 8
-
Channel ECG System Solution

Control Interface

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

Control Interface

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24bit

r

S

ADC

Filter

24

-

bit

r

S

ADC

Switching /

Mux

Switching /

Mux

Integrated 8
-
Channel ECG System Solution

Integration results in:



~50% size reduction


~20% cost reduction


~20% power reduction

14

Integrated ECG Solution Demonstrated

Integrated 16ch ADC

ADS1258

15

Addressing the Major Challenges

-

Portable Ultrasound Case

Smaller & Lighter



More Power
-
Efficient



More Cost
-
Efficient



More Connected



More Portable

16

Bringing Ultrasound to the Point
-
of
-
Care

Tsunami

Military

Mt. Everest

Images courtesy of Sonosite

17

Integration Steps for Portable
Ultrasound



Transmit

Beamformer

Front End

Back

End

Mid

Receive

Beamformer

Beamformer

Control Unit

Preprocessing

Spectral

Doppler

Processing

B Mode

Processing

Color/Power

Doppler

Processing

Scan Conversion

Post Processing

Clocking

LPW

RS232

USB

1394

802.11

Common Interfaces

Power

Backlight

Touchscreen

Memory

Interfaces

MMC/SDIO

IDE/ATA

Ultrasound OS/UI

CW (analog)

Beamformer

Tx Buffer

Amp

Passive

LPF

FET

Driver

Embedded Processing

ADC

DAC

Audio

Amp

ADC

Analog Front

End

LNA

VCA

Low

Pass

Filter

PGA

Amp + Filter

Amp Stage

T/R

Switches

HV

MUX

Transducer

Analog signal chain

18



Transmit

Beamformer

Front End

Back

End

Mid

Receive

Beamformer

Beamformer

Control Unit

Preprocessing

Spectral

Doppler

Processing

B Mode

Processing

Color/Power

Doppler

Processing

Scan Conversion

Post Processing

Clocking

LPW

RS232

USB

1394

802.11

Common interfaces

Power

Backlight

Touchscreen

Memory

interfaces

MMC/SDIO

IDE/ATA

Ultrasound OS/UI

CW (analog)

Beamformer

Tx Buffer

Amp

Passive

LPF

FET

Driver

Embedded processing

ADC

DAC

Front

end

High
-
Performance
DSP

Back

end

Audio

Amp

Mid

High
-

Performance
DSP

ADC

Analog Front

End

LNA

VCA

Low

Pass

Filter

PGA

Amp + Filter

Amp Stage

DSP
SoC/Apps.
processor

High
-

Performance
DSP

T/R

Switches

HV

MUX

Transducer

Analog signal chain

Integration Steps for Portable
Ultrasound

19

Ultrasound Receiver Front
-
End Integration Path

15mm

9mm

AFE5805EVM

20

Phantom Image

Mimicking
Vessel

Reflectors

Mimicking
Tissue

Portable Ultrasound Demonstrator Implemented

32 channels Tx & Rx on Analog Front End Board

AFE5805

TX734

DAC902

CDCE62005

DM6446

Analog Front End Board

Digital

Processing

Board

21

What are the Major Challenges?

-

Wireless Medical Sensors Case (BAN / AAL)

Smaller & Lighter



More Power
-
Efficient



More Cost
-
Efficient



More Connected



More Portable

22

Goal: Reduce Wires for Patient
Comfort


Three electrodes on head


Two

electrodes

on forehead


One

electrode

next to each
eye


Two

electrodes under
mouth


Two

electrodes

on each leg


A pulse oximeter on the
finger


A chest belt for respiration
monitor


A breathing tube


…all collected on the blue
box


From the blue box, a very
thick cable ran to the
computer that collected

all the signals

Now go to sleep …

14
-
year old David during a sleep test

23

Solution: Wireless Connected Vital Sensors

Telematik

new sensor concepts

By microsystems

technology

Smart

Sensors

Hardware:

Universal platform for the
transfer of biosignals

Software:

Interface standards

Pulsoximeter

continous Monitoring

3 channelsECG


Scales

Transfer of data via
SMS

Peak
-
Flowmeter


Sphygmomanometers


Thermometers


The interconnection
of new sensors with

Courtesy of

FZI Karlsruhe

24

Application in Experimental Monitoring Jacket

Continous measurement of


Blood pressure change


Activity sensor


ECG



Wireless communication

(BlueTooth)


Electronics

Courtesy of

FZI Karlsruhe

25

Potential Wireless Standards



Passive RFID



Active RFID



802.15.4/ Zigbee



Bluetooth Low Energy



Bluetooth



IEEE 802.11b



IEEE 802.11a/g


IEEE 802.11n



UWB


Sub
-
1GHz ISM


}

Wireless Connectivity for Medical applications

26

What is LE Bluetooth?

LE


Low Energy

Single mode device

(BTLE only)

Dual mode device

(GTLE+Bluetooth BR/EDR)


Simplified version of Bluetooth optimized for low power


Low average power


quick initialization of links


Low peak current


suitable for coin cell usage

Wireless Connectivity for Medical applications

CC2540

CC2540

CC2540

27

BT Classic vs. BT LE

BT Classic (BR/EDR)

Bluetooth Low Energy (BLE )

1, 2 or 3 Mbps

1 Mbps

5
-
10 m

5
-
10 m

2.400
-
2.4835 GHz

2.400
-
2.4835 GHz

GFSK (BR), PSK (EDR)

GFSK (index 0.5)

Star + Piconet

Pure Star (no piconet)

Master send page, Slave scan

Master scans, slave advertises

Voice (SCO), Data (ACL)

Data (ACL)

Pseudo random XOR sequence

AES
-
CCM (NIST approved)

Data transfer once a minute: 70uA

Paired


not connected 320uA

Data transfer once a minute: 53uA

Paired


not connected: 190uA

Data transfer once a minute: 70uA

Paired


not connected: 320uA

Data transfer once a minute: 7uA

Paired


not connected: 4uA

Init connection: 35mA for 10mS,


~10mA for <100mS

Init connection: 17mA for 128uS

Shared BR/EDR/ULP HCI (in dual
-
mode)

Data

rate

Range

ISM

bandwidth

Modulation

Topology

Device Discovery

Packet

Formats

Security

Average

Power

Consumption


(Dual

Mode)

Average

Power

Consumption

(Single

Mode)

Peak

Current

Consumption

(peak)

HCI

Sensitivity

(BER=
0
.
1
%
)

Spec:
-
70 dbm

BL6450:
-
95 dbm (BR)

Spec:
-
70 dbm

BL6450: slightly better than
-
92 dbm

CC2540

CC2540

Wireless Connectivity for Medical applications

28

BLE Enabled by CC2540 System
-
on
-
a
-
chip (SoC)

Wireless Connectivity for Medical applications

Chronic Disease
Management

Weight

scale

Blood

pressure
monitor

Smart

bandage

Vital Signs Monitoring

Weight Management

CC2540 BLE evaluation kit

with USB dongle

CC2540 BLE coin cell demo

29

Health Care Revolution