Transcript High Speed ADC Marketing: The Year Ahead

Wie Halbleitertechnologie die
Medizintechnik revolutioniert
Design & Elektronik Developers' Forum:
"Embedded Goes Medical"
Leipzig, September 2009
Matthias Feulner
Marketing Manager
[email protected]
Semiconductors Impact
Computing
revolution
Computing
transformed
1980s
Communications
revolution
Communications
transformed
1990s
Healthcare
revolution
Healthcare
transformed
2000 and beyond
2
Making devices smaller…
2008
Bluetooth® +
FM Single Chip
2000
GSM/GPRS
Single Chip
LoCosto™
Wireless LAN
Single-chip GPS
1990
EDGE single-chip
eCosto™
3
…, more personal…
2.4GHz ISM
Weight Management
(Zigbee/BT/
802.15.4/ULP)
Bluetooth /
BLE
Chronic Disease
Management
GSM/GPRS
Zigbee /
802.15.4
Vital Signs Monitoring
800 MHz /
900 MHz ISM
Bluetooth /
BLE
Blood
pressure
monitor
Smart
Weight
bandage scale
4
… sensing and diagnosing
For in-hospital and out-of-hospital continuous wireless monitoring of
vital signs and other physiological data directly off the body
Body worn monitoring devices
Chip + Sensor + printed battery in a low cost DISPOSABLE package
• Real time
ECG / Heart rate
• Intelligent
Temperature
• Continuous
Activity / Motion
• Wireless
Respiration
Location
EVOLUTION
REVOLUTION
Patient monitor
Wireless portable patient
monitor
Smart Bandage
5
Innovation Across all Medical Segments
Consumer
medical devices
• Digital
thermometers
• Blood glucose
monitor
• Blood pressure
Uncomfortable
monitor
• Insulin pumps
• Heart rate
monitors
• Audiology (digital
hearing aids)
Comfortable
Diagnostic,
patient monitoring
and therapy
• ECG
• EEG
• Blood oxygen
(pulse oximeter)
• Blood pressure
Doctor’s office
• Temperature
• Ventilation/
respiration
• Defibrillators
• Implantable
devices
+
Patient’s home
Medical
imaging
Medical
instruments
• Ultrasound
• CT
• MRI
• X-Ray
• Other imaging
Radiology
center
(nuclear,
positron
emission
tomography)
• Laboratory
equipment
• Dialysis machines
• Analytical
instruments
Laboratory
• Surgical
instruments
• Dental instruments
In the field
Innovation
+
6
Addressing the Major Challenges
More Cost-Efficient
Smaller & Lighter
More Portable
More Power-Efficient
More Connected
7
Addressing the Major Challenges
- Consumer Medical Case
More Cost-Efficient
Smaller & Lighter
More Portable
More Power-Efficient
More Connected
8
Consumer Medical Devices Achieving Highest Level of Integration and Cost Efficiency
LCD Display
LCD
Driver
MSP430FG439
MCU
Bio
Sensor
Op Amp
ADC
Signal
Processing
Op Amp
DAC
VRef
9
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.
10
Addressing the Major Challenges
- Portable Diagnostics & Therapy Case
More Cost-Efficient
Smaller & Lighter
More Portable
More Power-Efficient
More Connected
11
Portability for ECG Systems
Portable ECG images courtesy of Corscience
12
Traditional
Integrated 8-Channel ECG System Solution
Amp
IA
24bit
rSADC
Filter
L(LA)
Protect
Amp
IA
24bit
rSADC
Filter
Protect
Amp
IA
24bit
rSADC
Filter
C1(V1)
C2(V2)
C3(V3)
Protect
Protect
Protect
Amp
Amp
Amp
Integration results in:
IA
Switching / Mux
F(LL)
24bit
rSADC
IA
24bit
rSADC
Filter
24-bit
Filter
rSADC
24bit
rSADC
Filter
Filter
Protect
Amp
IA
24bit
rSADC
C5(V5)
Protect
Amp
IA
24bit
rSADC
Protect
Ref
RLD
Protect
mC
MSP430
SD
CF
USB
RS23
2
BUTTON I/F
PSU
Disp
Lamp
Monitor
Charge
r
Lead Off
Temp
RTC
Filter
Amp
Calibration
Amp
~50% size reduction
~20% cost reduction
~20% power reduction
IA
C4(V4)
C6(V6)
BT
Control Interface
Protect
Lead Selection
R(RA)
+
PACE DETECT
3x Comparator
Amp
13
Integrated ECG Solution Demonstrated
Integrated 16ch ADC
ADS1258
14
Addressing the Major Challenges
- Portable Ultrasound Case
More Cost-Efficient
Smaller & Lighter
More Portable
More Power-Efficient
More Connected
15
Bringing Ultrasound to the Point-of-Care
Military
Mt. Everest
Images courtesy of Sonosite
Tsunami
16
Integration Steps for Portable
Ultrasound
Embedded Processing
Analog signal chain
FET
Driver
Tx Buffer
Amp
Front End
Transducer
HV
MUX
Passive
LPF
Transmit
Beamformer
DAC
Receive
Beamformer
T/R
Switches
LNA
VCA
Mid
Analog Front
Amp + Filter
End
Amp Stage
PGA
Low
Pass
Filter
Beamformer
Control Unit
Preprocessing
Clocking
ADC
Back
End
CW (analog)
Beamformer
ADC
Spectral
Doppler
Processing
B Mode
Processing
Color/Power
Doppler
Processing
Scan Conversion
Post Processing
Ultrasound OS/UI
Audio
Amp
Common Interfaces
Power
LPW
RS232
USB
1394
802.11
Backlight
Touchscreen
Memory
Interfaces
MMC/SDIO
IDE/ATA
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Integration Steps for Portable
Ultrasound
Embedded processing
Analog signal chain
FET
Driver
Tx Buffer
Amp
Front End
Transducer
HV
MUX
Passive
LPF
HighTransmit
Performance
Beamformer
DSP
DAC
Front
end
Receive
Beamformer
T/R
Switches
LNA
VCA
Mid
Mid
HighPerformance Preprocessing
DSP
Analog Front
Amp + Filter
End
Amp Stage
PGA
Low
Pass
Filter
Beamformer
Control Unit
Clocking
ADC
Back
End
CW (analog)
Beamformer
Color/Power
B Mode
Doppler
Back Processing
High- Processing
Spectral
Performance end
Doppler
DSP
Scan Conversion
Processing
Post Processing
ADC
Common interfaces
Power
DSP
Ultrasound
OS/UI
SoC/Apps.
processor
LPW
RS232
USB
1394
802.11
Audio
Amp
Backlight
Touchscreen
Memory
interfaces
MMC/SDIO
IDE/ATA
18
Ultrasound Receiver Front-End Integration Path
9mm
15mm
AFE5805EVM
19
Portable Ultrasound Demonstrator Implemented
32 channels Tx & Rx on Analog Front End Board
Phantom Image
Mimicking
Tissue
Analog Front End Board
Mimicking
Vessel
Reflectors
DAC902
TX734
AFE5805
CDCE62005
Digital
Processing
Board
DM6446
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What are the Major Challenges?
- Wireless Medical Sensors Case (BAN / AAL)
More Cost-Efficient
Smaller & Lighter
More Portable
More Power-Efficient
More Connected
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Goal: Reduce Wires for Patient
Comfort
14-year old David during a sleep test
Now go to sleep …
• 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
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Solution: Wireless Connected Vital Sensors
Hardware:
Universal platform for the
transfer of biosignals
Telematik
Thermometers
Sphygmomanometers
The interconnection
of new sensors with
Peak-Flowmeter
Smart
Sensors
new sensor concepts
By microsystems
technology
Software:
Interface standards
Scales
Transfer of data via
SMS
Pulsoximeter
continous Monitoring
3 channelsECG
Courtesy of
FZI Karlsruhe
23
Application in Experimental Monitoring Jacket
Continous measurement of
• Blood pressure change
• Activity sensor
• ECG
Wireless communication
(BlueTooth)
Courtesy of
FZI Karlsruhe
Electronics
24
Wireless Connectivity for Medical applications
Potential Wireless Standards
• Passive RFID
480 Mbps
• Active RFID
• 802.15.4/ Zigbee
UWB
300 Mbps
• Bluetooth Low Energy
Data Rate
IEEE 802.11n
• Bluetooth
54 Mbps
• IEEE 802.11b
IEEE 802.11a/g
Active RFID
11 Mbps
• IEEE 802.11a/g
IEEE 802.11b
•IEEE 802.11n
3 Mbps
• UWB
Bluetooth
ULP
Bluetooth
250 kbps
}
•Sub-1GHz ISM
Zigbee
20 kbps
Passive RFID
1
100
10
Range (meters)
25
Wireless Connectivity for Medical applications
What is LE Bluetooth?
CC2540
LE – Low Energy
CC2540
Single mode device
(BTLE only)
Dual mode device
(GTLE+Bluetooth BR/EDR)
CC2540
• Simplified version of Bluetooth optimized for low power
• Low average power – quick initialization of links
• Low peak current – suitable for coin cell usage
26
Wireless Connectivity for Medical applications
BT Classic vs. BT LE
BT Classic (BR/EDR)
Bluetooth Low Energy (BLE )
ISM bandwidth
2.400-2.4835 GHz
2.400-2.4835 GHz
Topology
Star + Piconet
Pure Star (no piconet)
Device Discovery
Master send page, Slave scan
Master scans, slave advertises
Data rate
1, 2 or 3 Mbps
1 Mbps
Range
5-10 m
5-10 m
Modulation
GFSK (BR), PSK (EDR)
GFSK (index 0.5)
Packet Formats
Voice (SCO), Data (ACL)
Data (ACL)
Sensitivity (BER=0.1%)
Spec: -70 dbm
BL6450: -95 dbm (BR)
Spec: -70 dbm
BL6450: slightly better than -92 dbm
Security
Pseudo random XOR sequence
AES-CCM (NIST approved)
HCI
Shared BR/EDR/ULP HCI (in dual-mode)
Init connection: 35mA for 10mS,
~10mA for <100mS
Init connection: 17mA for 128uS CC2540
Average Power Consumption
(Dual Mode)
Data transfer once a minute: 70uA
Paired – not connected
320uA
Data transfer once a minute: 53uA
Paired – not connected:
190uA
Average Power Consumption
(Single Mode)
Data transfer once a minute: 70uA
Paired – not connected:
320uA
Data transfer once a minute: 7uA
Paired – not connected:
4uA CC2540
Peak Current Consumption (peak)
27
Wireless Connectivity for Medical applications
BLE Enabled by CC2540 System-on-a-chip (SoC)
Weight Management
LPRF System on Chip
CC2540
8051
MCU
Antenna
RF
Transceiver
Chronic Disease
Management
Vital Signs Monitoring
CC2540 BLE evaluation kit
with USB dongle
CC2540 BLE coin cell demo
Blood
pressure
monitor
Smart
Weight
bandage scale
28
Health Care Revolution
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