ECG and EEG Applications Quick Reference

ECG and EEG
Applications
Quick Reference Guide
www.ti.com
2012
ECG and EEG Applications Quick Reference Guide
➔ Overview
Biophysical Monitoring Overview
The human medical data acquisition
system, in particular the patient monitoring system, presents the challenge
to designers of measuring very small
electrical signals in the presence of
much larger common-mode voltages
and noise. Front-end amplifiers perform
the essential conditioning that complements downstream digital processing,
which in turn refines the measurement
and communicates with other systems.
Biophysical measurements include
electrical and mechanical signals for
general monitoring, diagnostic and
scientific purposes both in clinic and
non-clinic environments. Successfully
meeting the signal acquisition challenge requires system designers to
have knowledge of the signal source,
good design practice and ICs with
appropriate characteristics, features
and performance.
Signal Acquisition Challenges
The action potential created by heart
wall contraction spreads electrical cur­
rents from the heart throughout the body.
The spreading electrical currents create
different potentials at different points
on the body, which can be sensed by
electrodes on the skin surface using
biological transducers made of metals
and salts. This electrical potential is an
AC signal with bandwidth of 0.05Hz to
100Hz, sometimes up to 1kHz. It is
generally around 1mV peak-to-peak in
the presence of much larger external
high frequency noise plus 50/60Hz
interference normal-mode (mixed
with the electrode signal) and common-mode voltages (common to all
electrode signals).
The common-mode is comprised of
two parts: 50Hz or 60Hz inter­ference
and DC electrode offset potential.
Other noise or higher frequencies
within the biophysical bandwidth come
from movement artifacts that change
the skin-electrode interface, muscle
contraction or electromyographic
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Selection Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
spikes, respiration (which may be
rhythmic or sporadic), electro­magnetic
interference (EMI), and noise from other
electronic components that couple into
the input. Some of the noise can be
cancelled with a high-input-impedance
instrumentation amplifier (INA), like the
INA333 or INA118, which removes the
AC line noise common to both inputs
and amplifies the remaining unequal
signals present on the inputs; higher
INA common-mode rejection (CMR)
will result in greater rejection. Because
they originate at different points on the
body, the left-arm and right-arm ECG
signals are at different voltage levels
and are amplified by the INA. To further
reject 50 and 60Hz noise, an operational amplifier deriving common-mode
voltage is used to invert the commonmode signal and drive it back into the
patient through the right leg using an
amplifier. Only a few microamps or
less are required to achieve significant
CMR improvement and stay within the
UL544 limit.
Supply Voltage
As in most other applications, the
system supply voltage in biophysical
monitoring continues the trend toward
low, single-supply levels. While bipolar
supplies are still used, 5V systems are
now common and trending to single
3.3V supplies. This trend presents a
significant challenge for the designer
faced with at least a 300mV DC electrode potential and emphasizes the
need for a precision signal-conditioning
solution.
2
Frequency Response
Standard –3dB frequency bandwidth
for patient monitoring is 0.05Hz to 30Hz,
while diagnostic grade monitoring
requires 0.05Hz to 100Hz or more. The
analog front end must be AC coupled
to remove artifacts from the electrode
offset potential.
Instrumentation Amplifier
Requirements
• Stability in low gain (Gain = 1 to 10)
• High common-mode rejection
• Low input bias current (IB)
• Good swing to the output rail
• Very low offset and drift
Operational Amplifier
Requirements
• Low noise in high gain
(Gain = 10 to 1000)
• Rail-to-rail output
• Very low offset and drift
Connectivity for ECG/EEG equipment
has become of interest as caregivers
require data to move from medical end
equipment to data hubs such as the
hospital/clinic IT infrastructure, computers or even mobile phones.
For more information, visit
www.ti.com/ecg
ECG and EEG Applications Quick Reference Guide
➔ Overview
Backlight
Integrated Analog Front End
Input
Buffer
LCD
Low Pass
(DC)
Filter
Touch Screen Control
ADC
Display
Driver
Mux
High
Pass
Filter
Wireless:
Zigbee
Bluetooth
ADC
Summer
(resistive)
RLD
Temp Sense
Clock
Core
and I/O
Power
Low Noise Power
Signal
Processor
DSP/OMAP
Isolation
DS Converter
Ref
Logic
Level Shift
AC/DC
Supply
AC Line
Green
Mode
Control
Battery
Management
Power M
P
Managementt
DDR
Power
FLASH/
EEPROM
Plug
SDRAM
LEGEND
Human Body
Wired:
USB
RS232
Processor
Interface
RF/IF
Amplifier
Logic
Power
ADC/DAC
Clocks
Other
Memory
Three ECG electrodes connected to patient using CMOS components w/5V single supply. This circuit will operate on a 3.3V supply.
Product Availability and Design Disclaimer – The system block diagram depicted above and the devices recommended are designed in this manner as a reference. Please contact your local TI sales office or
distributor for system design specifics and product availability.
ADS1298ECG Front End Performance Demonstration Kit
ADS1298ECGFE-PDK
Get samples and datasheets at: www.ti.com/sc/device/ADS1298ecgfe-pdk
Key Features
• Easy-to-use evaluation software for
Microsoft™ Windows XP
• Built-in analysis tools including
oscilloscope, FFT, and histogram
displays
• Flexible input configurations
• Optional external reference circuits
• Ability to export data in simple test
files for post processing
The ADS1298ECG FE is a reference design for the ADS1298, a simultaneous
sampling, 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) with a built-in
programmable gain amplifier (PGA), internal reference, and an onboard oscillator.
The ADS1298 incorporates all of the features that are commonly required in
medical electrocardiogram (ECG) and electroencephalogram (EEG) applications.
The ADS1298ECG FE can be used with a variety of patient simulators and
allows the user to take advantage of the flexible input multiplexer which can be
independently connected to the internally-generated signals for test, temperature,
and lead-off detection.
ADS1298ECG front end performance demonstration kit.
3
ECG and EEG Applications Quick Reference Guide
➔ Solutions
Low-Power, 8-Channel, 24-Bit Analog Front End for Biopotential Measurements
ADS1298
Get samples and datasheets at: www.ti.com/sc/device/ADS1298
Key Features
• Eight low-noise PGAs and eight
high-resolution ADCs (ADS1298)
• Low power: 0.75mW/channel
• Input-referred noise: 4µVPP
(150Hz BW, G = 6)
• Input bias current: 200pA (max)
• Data rate: 250SPS to 32kSPS
• CMRR: –115dB
• Programmable gain: 1, 2, 3, 4, 6, 8 or 12
• Built-in right leg drive amplifier, lead-off detection, WCT, test signals
Applications
• Medical instrumentation
(ECG and EEG), including:
Patient monitoring; holter, event,
stress, and vital signs ECG, AED,
telemedicine, fetal ECG
Bispectral index (BIS), evoked audio
potential (EAP), sleep study monitor
• High-precision, simultaneous, multichannel signal acquisition
The ADS1294/6/8 are a family of multichannel, simultaneous sampling,
24-bit, delta-sigma (ΔΣ) analog-to-digital converters (ADCs) with a built-in
programmable gain amplifier (PGA), internal reference and onboard oscillator.
The ADS1294/6/8 incorporate all of the features that are commonly required in
medical electrocardiogram (ECG) and electroencephalogram (EEG) applications.
With its high levels of integration and exceptional performance, the ADS1294/6/8
family enables the creation of scalable medical instrumentation systems at
significantly reduced size, power and overall cost.
REF
PGA1
ADC1
SPI™
&
Control
MUX
PGA8
ADC8
Lead Off
Oscillator
Temp
RLD
Test
Resp
Pace
Detect
ADS1298
Wilson
ADS1298 functional block diagram.
Biopotential Sensing (ECG/EEG) Delta-Sigma ADCs
Res.
(Bits)
Sample-Rate
(kSPS)
Number of Input
Channels
Interface
Input-Referred
Noise (µVpp)
Common Mode
Rejection (dB)
Power
(mW)
HiRel
Avail.
Package(s)
Price*
ADS1298
24
32
8 Diff
SPI
4
115
6
N
BGA-64, TQFP-64
23.95
ADS1298R
24
32
8 Diff
SPI
3
115
6
N
BGA-64
23.95
ADS1296
24
32
6 Diff
SPI
4
115
5.1
N
BGA-64, TQFP-64
17.95
ADS1294
24
32
4 Diff
SPI
4
115
3.6
N
BGA-64, TQFP-64
11.95
ADS1198
16
8
8 Diff
SPI
12
100
4.5
N
BGA-64, TQFP-64
8.00
ADS1196
16
8
6 Diff
SPI
12
100
3.9
N
BGA-64, TQFP-64
11.95
ADS1194
16
8
4 Diff
SPI
12
100
3
N
BGA-64, TQFP-64
15.95
Device
New products are listed in bold red.
*Suggested resale price in U.S. dollars in quantities of 1,000.
4
ECG and EEG Applications Quick Reference Guide
➔ Solutions
2-Ch., 24-Bit Fully Integrated ADC for Medical Instrumentation and Sports and Fitness Applications
ADS1292
Get samples and datasheets at: www.ti.com/sc/device/ADS1292
Applications
• Medical instrumentation:
1- and 3-Lead ECG
Heart rate
AED
Holter
• Sports and fitness applications
Chest straps
Work-out equipment
Wrist watches
An ADS1292 solution takes up 92% less PCB space, consumes 94% less power,
and uses 92% fewer components compared to a discrete implementation of a
2-channel Holter. Similarly, an ADS1291 solution takes up 52% less PCB space,
89% lower power consumption, and 75% fewer components over a discrete
implementation.
Designers interested in creating a complete line of biopotential measurement
products now have a family of devices to meet their needs from low lead count
heart rate monitors (ADS1291) to 12-lead ECG systems (ADS1298).
AVDD
(2.7 - 5.25V)
DVDD
(1.65 - 36V)
IN3P
IN3N
IN1P
IN1N
IN2P
IN2N
CLK
IN/OUT
Internal
Oscillator
Mux
Key Features
• Fully integrated ECG solution
• Optimized low noise PGA and 24-bit
ADC
ADS1291: 1 channel
ADS1292: 2 channels
• Test signals, RLD amp, oscillator,
reference
• Outstanding performance
Noise: less than 8μV p-p (150Hz BW,
G=6)
CMRR: 105dB with G = 6
• Continuous lead off detection
• Low Power
Less than 350μW per channel
Standby mode: 160μW overall
consumption
A1
ADC1
A2
ADC2
Test
Temp
Control
and
SPI
Interface
CLKSEL
DOUT
CIN
DRDY
CS
SCLK
RESET
PWDN
Lead-Off.
START
RLD IN
CH MUX Select
RLD OUT
AVSS
Internal Ref
VREFP
VREFN
DGND
ADS1292 functional block diagram.
Alternative Solutions
Device
Resolution
No. of Input Chs.
Respiration
Input-Referred Noise (µVpp)
Price*
ADS1298
24-bit
ADS1298R
24-bit
8
No
3
23.95
8
Yes
3
23.95
ADS1198
16-bit
8
No
12.2
14.35
ADS1296
24-bit
6
No
3
17.95
ADS1296R
24-bit
6
Yes
3
17.95
ADS1196
16-bit
6
No
12.2
11.35
ADS1294
24-bit
4
No
3
11.95
ADS1294R
24-bit
4
Yes
3
11.95
ADS1194
16-bit
4
No
12.2
7.80
ADS1292
24-bit
2
No
8
3.50
ADS1292R
24-bit
2
Yes
8
4.50
ADS1192
16-bit
2
No
24
2.50
ADS1291
24-bit
1
No
8
2.00
ADS1191
16-bit
1
No
24
1.50
New products are listed in bold red.
*Suggested resale price in U.S. dollars in quantities of 1,000.
5
ECG and EEG Applications Quick Reference Guide
➔ Solutions
High-Performance, Low-Power, Fixed-Point Digital Signal Processor
TMS320C5515
Get datasheets, samples and technical documents at: www.ti.com/sc/device/TMS320C5515
Key Features
• 320K bytes zero-wait state on-chip
RAM, composed of:
64K bytes of dual-access RAM
(DARAM), 8 blocks of 4K × 16-bit
256K bytes of single-access RAM
(SARAM), 32 blocks of 4K × 16-bit
• 128K bytes of zero wait-state onchip ROM (4 blocks of 16K × 16-bit)
• 4M × 16-bit maximum addressable
external memory space (SDRAM/
mSDRAM)
• 16-/8-bit external memory interface
(EMIF)
• Direct memory access (DMA)
controller
The TMS320C5515 fixed-point DSP is based on the TMS320C55x™ DSP generation
CPU processor core. The C55x™ DSP architecture achieves high performance and
low power through increased parallelism and total focus on power savings. The CPU
supports an internal bus structure that is composed of one program bus, one 32-bit
data read bus and two 16-bit data read buses, two 16-bit data write buses, and additional buses dedicated to peripheral and DMA activity. These buses provide the ability
to perform up to four 16-bit data reads and two 16-bit data writes in a single cycle.
DSP System
Input
Clock(s)
TM
JTAG Interface
C55x DSP CPU
PLL/Clock
Generator
FFT Hardware
Accelerator
Power
Management
64 KB DARAM
256 KB SARAM
Pin
Multiplexing
128 KB ROM
Switched Central Resource (SCR)
Peripherals
Applications
• Industrial controls
• Portable medical devices
• Wireless audio devices
Interconnect
I2 S
(x4)
DMA
(x4)
I2 C
SPI
App-Spec
Display
Connectivity
10-Bit
SAR
ADC
LCD
Bridge
USB 2.0
PHY (HS)
[DEVICE]
TMS320C5515 block diagram.
6
Program/Data Storage
Serial Interfaces
NAND, NOR,
SRAM, mSDRAM
UART
MMC/SD
(x2)
System
RTC
GP Timer
(x2)
GP Timer
or WD
LDOs
ECG and EEG Applications Quick Reference Guide
➔ Solutions
C6-IntegraTM DSP+Arm Processor
OMAP-L138
Get datasheets, samples and technical documents at: www.ti.com/sc/device/omap-l138
Key Features
• Dual core SoC
• Supports TI’s basic secure boot
• Enhanced direct-memory-access
controller (EDMA3)
• Serial ATA (SATA) controller
• DDR2/mobile DDR memory controller
• Two multimedia card (MMC)/secure
digital (SD) card interface
• LCD controller
• Video port interface (VPIF)
• 10/100 Mb/s ethernet MAC (EMAC)
• Programmable real-time unit
subsystem
• Three configurable UART modules
• USB 1.1 OHCI (Host) w/integrated PHY
• USB 2.0 OTG port with integrated PHY
• One multichannel audio serial port
• Two multichannel buffered serial ports
The OMAP-L138 C6-Integra™ DSP+ARM processor is a low-power applications
processor based on an ARM926EJ-S and a C674x DSP core. The dual-core architecture of the device provides benefits of both DSP and Reduced Instruction Set
Computer (RISC) technologies, incorporating a high-performance TMS320C674x
DSP core and an ARM926EJ-S core while providing significantly lower power than
other members of the TMS320C6000™ platform of DSPs.
The device enables OEMs and ODMs to quickly bring to market devices featuring
robust operating systems support, rich user interfaces, and high processing performance life through the maximum flexibility of a fully integrated mixed processor solution. It is capable of the highest level of diagnostic accuracy and enables wireless/
wired transfer and 2D/3D display on large LCD screen with touch screen capabilities.
Input
Clock(s)
C674x!
DSP CPU
4KB ETB
GeneralPurpose
Timer (x4)
16KB
I-Cache
Power/Sleep
Controller
Pin
Multiplexing
AET
16KB
D-Cache
32KB
L1 Pgm
32KB
L1 RAM
8KB RAM
(V ector Table)
256KB L2 RAM
64KB ROM
BOOT ROM
Switched Central Resource (SCR)
Peripherals
DMA
Audio Ports
EDMA3
(x2)
McASP
w/FIFO
Serial Interfaces
McBSP
(x2)
I2 C
(x2)
Control Timers
ePWM
(x2)
eCAP
(x3)
UART
(x3)
SPI
(x2)
Display
Video
LCD
Ctlr
VPIF
Parallel Port
µPP
Connectivity
USB2.0
OTG Ctlr
PHY
USB1.1
OHCI Ctlr
PHY
EMAC
10/100
(MII/RMII)
MDIO
OMAP-L138 functional block diagram.
DSP Subsystem
ARM926EJ-S CPU
With MMU
PLL/Clock
Generator
w/OSC
RTC/
32-kHz
OSC
Applications
• Electrocardiogram (ECG)
• Pulse oximetry
• Software defined radio
ARM Subsystem
JTAG Interface
System Control
7
Internal Memory
Customizable Interface
PRU Subsystem
128KB
RAM
External Memory Interfaces
HPI
MMC/SD
(8b)
(x2)
SATA
EMI FA (8b/16B)
NAND/Flash
16b SDRAM
DDR2/MDDR
Controller
ECG and EEG Applications Quick Reference Guide
➔ Solutions
Mixed-Signal Microcontroller
MSP430F6638
Get datasheets, samples and technical documents at: www.ti.com/sc/device/MSP430F6638
Key Features
• Low supply voltage range, 1.8V to 3.6V
• Ultra-low power consumption
• Wake-up from standby mode in < 5µs
• 16-bit RISC architecture, extended
memory, up to 20-MHz system clock
• Flexible power management system
• Unified clock system
• 16-bit timer TA0, Timer_A with five
capture/compare registers
• 16-bit timer TA1, Timer_A with three
capture/compare registers
Applications
• Analog and digital sensor systems
• Digital timers
• Hand-held meters
• Thermostats
The Texas Instruments MSP430™ family of ultra-low-power microcontrollers consists
of several devices featuring 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 contribute
to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up
from low-power modes to active mode in less than 5µs.
The MSP430F663x series are microcontroller configurations with four 16-bit timers, a
high performance 12-bit analog-to-digital (A/D) converter, 12-bit digital to analog (D/A)
converter, two universal serial communication interfaces (USCI), hardware multiplier,
DMA, real-time clock module with alarm capabilities, comparator and USB 2.
XI N
XT2IN
XT 2 OUT
DV CC
XOUT
Unified
Clock
System
MCLK
DV SS
AV CC
AV SS
16KB
RAM
ACLK
SMCLK
256KB
192KB
128KB
Flash
RST/NMI
P1.x
Power
Management
+2KB RAM
USB Buffer
LDO
SVM/SVS
Brownout
+8B Backup
RAM
SYS
W atchdog
P2 Port
Mapping
Controller
PA
P2.x
P3.x
PB PCP D
P5.x
P4.x
P6.x
I/O Ports
P1/P 2
2×8 I/Os
Interrupt
Capability
I/O Ports
P3/P 4
2×8 I/Os
Interrupt
Capability
I/O Ports
P5/P 6
2×8 I/Os
PA
1×16 I/Os
PB
1×16 I/Os
PC
1×16 I/Os
P7.x
P8.x
I/O Ports
P7/P 8
1×6 I/Os
1×8 I/Os
PD
1×14 I/Os
P9.x
I/O Ports
P9
1×8 I/Os
PE
1×8 I/Os
USCI0,1
Ax: UART,
IrDA, SPI
USB
Full-speed
Bx: SPI, I2C
CPUXV2
and
Working
Registers
EE M
(L: 8+2)
JTAG/
SBW
Interface/
TA 0
MPY32
Ti mer_A
5 CC
Registers
Port PJ
PJ.x
TA 1 and
TA 2
2 Timer_A
each with
3 CC
Registers
TB 0
Timer_B
7 CC
Registers
CRC16
Battery
Backup
System
MSP430F6638 functional block diagram.
8
DMA
ADC12_A
RTC_ B
Comp_B
12 Bit
200 KSPS
16 Channels
(12 ext/4 int)
Autoscan
LCD_ B
DAC12_A
REF
12-bit
2 channels
voltage out
Reference
1.5V, 2.0V ,
2.5V
160
Segments
6 Channel
ECG and EEG Applications Quick Reference Guide
➔ Solutions
Sitara™ ARM Microprccesor
AM1802
Get datasheets, samples and technical documents at: www.ti.com/sc/device/AM1802
Key Features
• ARM9 memory architecture
• Enhanced direct-memory-access
controller 3 (EDMA3)
• Two external memory interfaces
• Two serial peripheral interfaces (SPI)
• Three configurable 16550 type UART
modules
• Multiamedia card (MMC)/secure
digal (SD) card interface with secure
data I/O (SDIO)
• One master/slave integrated circuit
• One multichannel audio serial port
• 10/100 Mb/s Ethernet MAC (EMAC)
The device is a low-power applications processor based on ARM926EJ-S™.
The ARM926EJ-S is a 32-bit RISC processor core that performs 32-bit or 16-bit
instructions and processes 32-bit, 16-bit, or 8-bit data. The core uses pipelining so
that all parts of the processor and memory system can operate continuously.
The device enables OEMs and ODMs to quickly bring to market devices featuring robust
operating systems support, rich user interfaces, and high processing performance life
through the maximum flexibility of a fully integrated mixed processor solution.
ARM Subsystem
JTAG Interface
System Control
ARM926EJ-S CPU
With MMU
PLL/Clock
Generator
w/OSC
Input
Clock(s)
4KB ETB
GeneralPurpose
Timer (x3)
16KB
I-Cache
Power/Sleep
Controller
RTC/
32-kHz
OSC
16KB
D-Cache
8KB RAM
(V ector Table)
Pin
Multiplexing
64KB ROM
Switched Central Resource (SCR)
Applications
• Electrocardiogram (ECG)
• Pulse oximetry
Peripherals
DMA
Audio Ports
EDMA3
(x2)
Internal Memory
Serial Interfaces
UART
(x3)
SPI
(x2)
2
IC
(x1)
McASP
w/FIFO
128KB
RAM
Connectivity
USB2.0
OTG Ctlr
PHY
EMAC
10/100
(MII/RMII)
External Memory Interfaces
MMC/SD
(8b)
(x1)
MDIO
EMI FA (8b/16B)
NAND/Flash
16b SDRAM
DDR2/MDDR
Controller
AM1802 functional block diagram.
Digital Media Processor
DM3730
Get datasheets, samples and technical documents at: www.ti.com/sc/device/DM3730
Key Features
• Compatible with OMAP™ 3 architecture
• ARM® microprocessor (MPU) subsystem
• High performance image, video, audio
(IVA2.2™) accelerator subsystem
• Power SGX™ graphics accelerator
The DM37x generation of high-performance, applications processors are based on
the enhanced device architecture and are integrated on TI’s advanced 45-nm process
technology. This architecture is designed to provide best in class ARM and Graphics
performance while delivering low power consumption. This balance of performance
and power allow the device to support medical imaging, human interface and portable
data terminal applications.
LCD Panel
Applications
• Human interface
• Medical imaging
• Portable data terminals
MPU
Subsystem
IVA 2.2 Subsystem
TMS320DM64x+ DSP
Imaging V ideo and
Audio Processor
32K/32K L1$
48K L1D RAM
64K L2$
32K L2 RAM
16K L2 ROM
V ideo Hardware
64
POWERVR
SGX
Graphics
Accelerator
L2$
256K
64
32
32
Channel
System
DMA
32
32
32
TV
Camera
ISP
Image
Capture
Hardware
Image
Pipeline
Dual Output 3-Layer
Display Processor
(1xGraphics, 2xVideo)
Temporal Dithering
SDTV ® QCIF Support
32
64
HS USB
Host
HS
USB
OTG
32
Async
Async
64
Parallel
TM
64
Camera
(Parallel)
Amp
ARM ®
CortexTM- A8 Core
TrustZone
32K/32K L1$
32
CVBS
or
S-Video
32
64
64
L3 Interconnect Network-Hierarchial, Performance, and Power Driven
32
64KB
On-Chip
RAM
32
32KB
On-Chip
ROM
64
SMS:
SDRAM
Memory
Scheduler/
Rotation
SDRC:
SDRAM
Memory
Controller
DM3730 functional block diagram.
9
32
32
32
L4 Interconnect
GPMC:
General
Purpose
Memory
Controller
NAND/
NOR
Flash,
SRAM
External and
Stacked Memories
Peripherals: 4xUART,
3xHigh-Speed I2C, 5xMcBSP
(2x with Sidetone/Audio Buffer)
4xMcSPI, 6xGPIO
3xHigh-Speed MMC/SDIO
HDQ/1 Wire, 6xMailboxes
12xGPTimers, 2xWDT,
32K Sync Timer
Emulation
Debug: SDTI, ETM, JTAG
System
Controls
PRCM
2xSmartReflex
Control
Module
External
Peripherals
Interfaces
TM
ECG and EEG Applications Quick Reference Guide
➔ Solutions
Zero-Drift, Low-Offset, Single-Supply Op Amps
OPA334, OPA335
Get samples, datasheets, evaluation modules and application reports at: www.ti.com/sc/device/OPA334
or www.ti.com/sc/device/OPA335
Key Features
• GBW: 2MHz
• Low offset voltage: 5µV (max)
• Zero drift: 0.05µV/°C (max)
• Quiescent current: 285µA
• EMI input filtered
• Shutdown available on OPA344
• Packaging: SOT23-5, SOT23-6,
SO-8, MSOP-10 (dual)
The OPA334 and OPA335 CMOS op amps use auto-zeroing techniques to
simultaneously provide very low offset voltage and near-zero drift over time and
tem­perature. These high-precision amps offer high input impedance and rail-to-rail
output swing.
VEX
R1
+5V
R
R
R
R
Applications
• Transducer applications, such as
pressure sensing
• Electronic weight scales
• Temperature measurement
VOUT
OPA335
R1
VREF
OPA335 –5V supply bridge amplifier for high CMRR
Low Power, Precision Instrumentation Amplifier
INA333
Get samples, datasheets, evaluation modules and application reports at: www.ti.com/sc/device/INA333
Key Features
• Low offset voltage: 25µV (max), G ≥ 100
• Low drift: 0.1µV/°C, G ≥ 100
• Low noise: 50nV/√Hz, G ≥ 100
• High CMRR: 100dB (min), G ≥ 10
• Low input bias current: 200pA(max)
• Supply range: +1.8V to +5.5V
• Input voltage: (V-) +0.1V to (V+) -0.1V
• Output range: (V-) +0.05V to
(V+) -0.05V
• Low quiescent current: 50µA
• Operating temperature:
-40°C to +125°C
• RFI filtered inputs
• MSOP-8 and DFN-8 packages
The INA333 is a low-power, precision instrumentation amplifier offering excellent
accuracy. The versatile 3-op amp design, small size, and low power make it ideal
for a wide range of portable applications.
The INA333 provides very low offset voltage, excellent offset voltage drift, and high
common-mode rejection. It operates with power supplies as low as 1.8V (±0.9V),
and quiescent current is only 50µA—ideal for battery-operated systems. Using
autocalibration techniques to ensure excellent precision over the extended industrial temperature range, the INA333 also offers exceptionally low noise density (50
nV/√Hz) that extends down to dc.
V+
7
V IN
RFI Filtered Inputs
1
150k
RFI Filtered Inputs
50k
RG
6
A3
50k
V OU T
8
RFI Filtered Inputs
V IN +
3
150k
150k
5
A2
RFI Filtered Inputs
INA333
4
V
INA333 functional block diagram.
150k
A1
Applications
• ECG amplifiers
• Medical instrumentation
• Portable insrumentation
• Weigh scales
2
10
G=1+
100k
RG
REF
ECG and EEG Applications Quick Reference Guide
➔ Solutions
3ppm/°C Drift, 0.05% Accurate, Low-Noise, Precision Series Voltage References
REF5020, REF5025, REF5030, REF5040, REF5045, REF5050, REF5010
Get samples, datasheets and app reports at: www.ti.com/sc/device/PARTnumber (Replace PARTnumber with REF5020, REF5025,
REF5030, REF5040, REF5045, REF5050 or REF5010)
Key Features
• High accuracy: 0.05%
• Low temperature drift: 3ppm/°C (max)
• Very low noise: 3µVPP/V
• High output current: ±10mA
• Wide supply range: 2.7V to 18V
• Industrial temperature range:
–40°C to +125°C
• Packaging: SO-8, MSOP coming soon
Applications
• Test and measurement
• 16-bit data acquisition systems
• Medical and patient monitoring
• Industrial process control
The REF50xx brings a new level of precision to the TI series voltage reference
line. Offering 3ppm/°C (max) drift and 0.05% initial accuracy and very low noise, the REF50xx is designed for industrial, medical and test applications that require
performance over temperature.
Model
REF5020
REF5025
REF5030
REF5040
REF5045
REF5050
REF5010
Voltage Out
2.048V
2.5V
3.0V
4.096V
4.5V
5V
10V
DNC(1)
1
V IN
2
TEMP
3
GND
4
REF50xx
8
DNC(1)
7
NC(2)
6
V OUT
5
TRIM/NR
SO-8, MSOP-8
REF50xx package diagram
2.95V to 6V Input, 2W, Isolated DC/DC Converter with Integrated FETS
TPS55010
Get samples, datasheets, evaluation modules and application reports at: www.ti.com/sc/device/TPS55010
Key Features
• Isolated fly-buck topology
• Primary side feedback
• 100kHz to 2000kHz switching
frequency
• Synchronizes to external clock
• Adjustable slow start
• Adjustable input voltage UVLO
• Open-drain fault output
• Cycle-by-cycle current limit
• Thermal shutdown protection
• 3 mm x 3 mm 16-pin QFN package
The TPS55010 is a transformer driver designed to provide isolated power for isolated interfaces, such as RS-485 and RS-232, from 3.3V or 5V input supply. The
device uses fixed frequency current mode control and half bridge power stage with
primary side feedback to regulate the output voltage for power levels up to 2W.
The switching frequency is adjustable from 100kHz to 2000kHz so solution size,
efficiency and noise can be optimized. The switching frequency is set with a resistor or is synchronized to external clock using the RT/CLK pin. To minimize inrush
currents, a small capacitor can be connected to the SS pin. The EN pin can be
used as an enable pin or to increase the default input UVLO voltage from 2.6V.
3V
to
5.5 V
C IN
Applications
• Noise immunity in PLCs, data acquisition and measurement equipment
• Isolated RS-232 and RS-485
communication channels
• Powers line drivers, ISO amplifiers,
sensors, CAN transceivers
• Floating supplies for IGBT gate drivers
• Promotes safety in medical
equipment
VIN
BOOT
C boot
TPS55010
T1
1:2. 5
PH
C ss
EN
FAULT
SS
VSENSE
RT/CLK
COMP
Rt
GND
CC
TPS55010 functional block diagram.
11
5V
200mA
CO
R HS
R LS
+
VO
_
C PR I
ECG and EEG Applications Quick Reference Guide
➔ Solutions
60mA Charge Pump Voltage Inverter with Fixed 250kHz Operation
TPS60403
Get samples, datasheets, evaluation modules and application reports at: www.ti.com/sc/device/TPS60403
Key Features
• Inverts input supply voltage
• Up to 60-mA output current
• Only three small 1-µF ceramic
capacitors needed
• Input voltage range from 1.6V to 5.5V
• PowerSave-mode for improved
efficiency at low output currents
(TPS60400)
• Device quiescent current typical 65µA
• Integrated active Schottky-diode for
start-up into load
• Small 5-pin SOT23 package
Applications
• Battery-operated equipment
• LCD bias
• Medical instruments
• Sensor supply in portable instruments
The TPS6040x is a family of devices that generate an unregulated negative output
voltage from an input voltage ranging from 1.6V to 5.5V. The devices are typically
supplied by a preregulated supply rail of 5V or 3.3V. Due to its wide input voltage
range, two or three NiCd, NiMH, or alkaline battery cells, as well as one Li-Ion cell
can also power them.
Only three external 1-µF capacitors are required to build a complete dc/dc charge
pump inverter. Assembled in a 5-pin SOT23 package, the complete converter can be
built on a 50mm2 board area. Additional board area and component count reduction is
achieved by replacing the Schottky diode that is typically needed for start-up into load
by integrated circuitry.
DBV PACKAGE
(TOP VIEW)
OUT
1
IN
2
CFLY
3
5
CFLY+
4
GND
TPS60403 package.
Bluetooth® v2.1 + EDR (Enhanced Data Rate) Transceiver
CC2560-PAN1325
Get samples, datasheets and app reports at: www.ti.com/cc2560-pan1325
Key Features
• Fully qualified Bluetooth® v2.1 + EDR (enhanced data rate)
• +10dBm Tx power with transmit power control
• -93dBm receiver sensitivity
• Support for Bluetooth® power saving modes
• Integrated antenna
(PAN1315 available without antenna)
• HW and SW pre-integration with TI’s MSP430 and Stellaris platforms
• Bluetooth®, FCC, CE, IC certified
• Dimensions: 9 mm x 9.5 mm x 1.8 mm
• Bluetooth® + ANT, and Bluetooth® Applications
• Cable replacement
• Wireless sensors
• Medical devices
• Computer peripherals
• Industrial control
• Consumer devices
The CC2560-PAN1325 is a highly-integrated class 2 HCI module with increased
output power capabilities offered by Panasonic utilizing TI’s CC2560 Bluetooth®
2.1 + EDR Transceiver. Based on TI’s 7th generation Bluetooth® technology, the
solution provides best-in-class Bluetooth® RF performance of +10dBm Tx power
and -93 dBm receiver sensitivity. This solution is provided as a module to help
customers reduce development time, lower manufacturing costs, save board
space, ease certification, and minimize RF expertise required. For evaluation
and development, various platforms are available which integrate the Panasonic
module, Bluetooth® stack, Profiles (SPP for MSP430™, SPP + A2DP for Stellaris™),
and sample source applications running on a TI host controller (MSP430, Stellaris).
26-MHz
Clock
MSP430 ™
or
Stellaris® MCU
32-KHz
UART
Filter
Battery
PAN1325 Module
CC2560-PAN1325 Bluetooth ® system
CC2560-PAN1325 system block diagram.
CC2560
12
ECG and EEG Applications Quick Reference Guide
➔ Solutions
Second Generation System-on-Chip Solution for 2.4 GHz IEEE 802.15.4 / RF4CE / ZigBee®
CC2530
Get samples, datasheets and evaluation modules at: www.ti.com/CC2530
The CC2530 is a true system-on-chip (SoC) solution for IEEE 802.15.4, Zigbee®
and RF4CE applications. It enables robust network nodes to be built with very low
total bill-of-material costs. The CC2530 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 features. The
CC2530 comes in four different flash versions: CC2530F32/64/128/256, with
32/64/128/256KB of flash memory, respectively. The CC2530 has various operating modes, making it highly suited for systems where ultralow power consumption
is required. Short transition times between operating modes further ensure low
energy consumption.
RESET_N
Applications
• 2.4-GHz IEEE 802.15.4 systems
• Consumer electronics
• Low-power wireless sensing
networks
• Health care
• ZigBee® systems (256-KB flash)
XOSC_Q2
32-MHz
CRYSTAL OSC
XOSC_Q1
P2_4
P2_2
HIGHSPEED
RC-OSC
DEBUG
INTERFACE
P2_1
DCOUPL
POWER-ON RESET
BROWN OUT
CLOCK MUX
and
CALIBRATION
32.768-kHz
CRYSTAL OSC
P2_3
VDD (2 V–3.6 V)
ON-CHIP VOLTAGE
REGULATOR
WATCHDOG
TIMER
RESET
SLEEP TIMER
32-kHz
RC-OSC
POWER MANAGEMENT CONTROLLER
P2_0
P1_7
P1_6
8-KB SRAM
8051 CPU
CORE
P1_5
P1_4
MEMORY
ARBITER
P1_3
32/64/128/256-KB
FLASH
P1_2
P1_1
DMA
P1_0
P0_7
IRQ CTRL
P0_6
P0_5
ANALOG
COMPARATOR
P0_2
P0_1
P0_0
I/O CONTROLLER
P0_4
P0_3
FLASH CTRL
RADIO REGISTERS
OP-AMP
CSMA/CASTROBE PROCESSOR
AES
ENCRYPTION
AND
DECRYPTION
12-BIT
ADC
RADIO DATA INTERFACE
SYNTH
DEMODULATOR
AND AGC
MODULATOR
FIFO and FRAME CONTROL
Key Features
• 2.4-GHz IEEE 802.15.4 compliant
RF transceiver
• Excellent receiver sensitivity and
robustness to interference
• Programmable output power up to
4.5dBm
• Very few external components
• Only a single crystal needed for
asynchronous networks
• Wide supply-voltage range (2V–3.6V)
USART 0
FREQUENCY
SYNTHESIZER
RECEIVE
CHAIN
USART 1
TRANSMIT
CHAIN
TIMER 1 (16-Bit)
TIMER 2
(IEEE 802.15.4 MAC TIMER)
RF_P
TIMER 3 (8-Bit)
RF_N
DIGI TA L
ANALOG
MIXED
TIMER 4 (8-Bit)
CC2530 block diagram.
13
ECG and EEG Applications Quick Reference Guide
➔ Selection Table
Component Recommendations
Component
Description
Key Features
Benefits
Other TI Solutions
Amplifiers
INA118
INA121
INA126
INA128
OPA277
INA326
INA333
*Page 10
OPA130
OPA333
OPA334/5
*Page 10
OPA336
OPA378
Instrumentation
Amp
Instrumentation
Amp
Instrumentation
Amp
Instrumentation
Amp
Op Amp
110dB CMRR, 5nA (max) bias current, 50µV (max) offset
Wide BW at high gain, ±1.35V to ±18V supply
INA128, INA121
106dB CMRR, 4pA (max) bias current, 200µV (max) offset
Low input bias current
INA126
175µA/ch supply, 3µV/°C (max) drift, 250µV (max) offset
Precision low power, ±1.35V to ±18V supply
INA2126
120dB CMRR, 5nA (max) bias current, 50µV (max) offset
High CMRR, wide BW at high gain, ±2.25V to ±18V
supply
High precision, low drift, low power
INA129
Instrumentation
Amp
Instrumentation
Amp
FET-Input
Amplifier
Precision Op Amp
120dB CMRR (G = 100), 100µV (max) offset, 0.4µV/°C
(max) drift
25μV (max) offset, 50nV/°C drift, 50μA (typ) Iq
Op Amp
10µV offset, ±0.1µV/°C drift, 134dB open-loop gain
20pA (max) bias current, 90dB (min) CMRR, 1MHz BW
1.8V min supply, 0.017mA/ch (max), 10μV offset (max),
0.05μV/°C drift (max)
2MHz, 5µV (max) offset, 0.05µV/°C (max) drift, 285μA
High CMRR, low cost, +2.7V to +5.5V
OPA2277 (dual)
OPA4277 (quad)
INA321, INA333
Best offset/noise combination, supply down to 1.8V,
low power
Precision, low input bias, low power
INA326, INA321
Zero drift, high precision, low power, EMI input
OPA335, OPA378,
OPA330
OPA735, OPA333,
OPA334
OPA379
OPA330, OPA333
Provides very low offset voltage and near-zero drift
over time and temperature; SOT23
micoPower, SOT23 package
Lowest noise, power, price, precision zero-drift option
OPA131, OPA137
OPA2378
Op Amp
Low Noise
Precision Op Amp
Precision Op Amp
125µV (max) offset, 1.5µV/°C drift, 20µA supply
0.1µV/°C Vos drift, 125µA, 900kHz, 0.4μVPP (0.1Hz to
10Hz) 0.4µ Vpp (0.1Hz to 10Hz), 0.9MHz
2.2V to 5.5V supply, 20µV voltage, 0.1µV/°C drift, 125µA
quiescent current
THS4521/22/24
Low Power FDA
1.14mA quiescent current (typ), 4.6nV/√Hz voltage noise,
2.5V to 5.5V supply
ADS1258
Delta-Sigma ADC
16-channel, 24-bit, 125kSPS, 23.7kSPS/channel
ADS1271/74/78
Delta-Sigma ADC
24-bit, 128kSPS, 8-channel, 111dB SNR
ADS1298
*Page 4
ADS8317
ECG/EEG AFE
24-bit, 8 PGA, 8 ADC, plus RLD and RESP
SAR ADC
ADS8326
ADS8331/32
Low-Power ADC
SAR ADC
16-bit, 250kSPS, 2.7V to 5.5V supply, ±1.5 LSB (max)
INL, differential input
16-bit, 250kSPS, 2.7V to 5.5V supply, ±1.5 LSB (max) INL
16-bit, 500kSPS, 4/8 channels, with serial interface
ADS8341/2/3/4/5
Serial Output
ADC
High Volt. SAR ADC
Charge-Digitizing
ADC
16-bit, 4-/8-channel single-ended or 2-channel
differential input, 2.7V to 5V single supply ADC
16-bit, 250kSPS, 1.5LSB (max) INL, 92dB SNR
Dual current input, 20-bit ADC, ±0.005% INL reading
±0.5ppm FSR
REF02
REF102
Precision VREF
10V, Ultra
Precision
0.2% (max) initial accuracy, 10ppm/°C (max) drift, 1.4mA (max)
0.05% (max) initial accuracy, 2.5ppm/°C (max) drift,
1.4mA (max)
REF30xx
Low-Power,
Low-Drift Ref.
50µA, 0.2% initial accuracy, 50ppm/°C max drift, ±25mA
output, 1.25V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V
REF32xx
Ultra-Low-Drift
Series Reference
100µA, 0.2% initial accuracy, 7ppm/°C max drift,
±10mA output, 1.25V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V
Improves system accuracy
REF33xx
Very Low-Power
Series Reference
5µA, 0.15% initial accuracy, 30ppm/°C max drift,
±5mA output, 1.25V, 1.8V, 2.048V, 2.5V, 3.0V, 3.3V
Preserves battery life, fits into physically constrained
systems
REF30xx, REF31xx,
REF29xx
REF5010
10V, High-Precision, 0.05% initial accuracy, 3ppm/°C max drift, ±10mA
Very Low-Drift
output, 10V
Series Reference
Improves system accuracy
REF102
REF50xx
*Page 11
High-Precision,
Very Low-Drift
Series Reference
0.05% initial accuracy, 3ppm/°C max drift, ±10mA
output, 2.048V, 2.5V, 3.0V, 4.096V, 4.5V, 5.0V
Improves system accuracy
REF02
Has excellent PSRR which makes it an ideal choice
for applications that run direct from batteries without
regulation
Low power, low noise enables high accuracy
Data Converters
ADS8519
DDC112
Fastest multi-channel, delta-sigma ADC, measures
all 16 inputs in <675µs
Simultaneous measurement, onboard decimation
filter
Complete front end, reduction in power and size,
increase reliability
Low power, small package, and wide supply range
ADS1256, ADS1255,
ADS8344
ADS1294, ADS1296,
ADS1198, ADS1258
ADS8326
Small package, wide supply range
Mux out feature can be used to reduce system part
count and overall cost
Easy to use
ADS8342
Single supply, high voltage inputs
High precision, true integrating function
ADS8515
DDC114, DDC118,
DDC232
Excellent line/load regulation, low noise
Excellent stability and line/load regulation
REF5050
REF5010
References
New products are listed in bold red. Preview products are listed in bold blue.
*For additional product information see designated page number.
To view more system block diagram compatible products, visit www.ti.com/ecg
REF31xx, REF33xx,
REF29xx
14
ECG and EEG Applications Quick Reference Guide
➔ Selection Table
Component Recommendations (Continued)
Component
Description
Key Features
Benefits
Other TI Solutions
Processors
AM1802
*Page 9
Sitara™ ARM
Microprccesor
ARM9 memory architecture, EDMA3, two external
memory interfaces and two SPI
The device enables OEMs and ODMs to quickly bring
to market devices featuring robust operating systems
support, rich user interfaces, and high processing
performance.
DM3730
*Page 9
Digital Media
Processor
Compatible with OMAP™ 3 architecture, ARM®
microprocessor (MPU) subsystem, high performance
image, video, audio (IVA2.2™) accelerator subsystem,
power SGX™ graphics accelerator
Designed to provide best in class ARM and
Graphics performance while delivering low power
consumption.
MSP430F20xx
Ultra-Low-Power
16-bit MCU
1KB/2KB Flash, 128B RAM, SPI+I2C 16-bit MCU
8 ch. 12-bit ADC or 4 ch. 16-bit SD ADC, 4 x 4mm
package
MSP430F22x4
Ultra-Low-Power
16-bit MCU
8 to 32KB Flash, 512B/1KB RAM, SPI + I2C + UART/LIN
+ IrDA
12 ch. 10-bit ADC, 2 operational amplifiers
MSP430F23x0
Ultra-Low-Power
16-bit MCU
8 to 32KB Flash, 1KB/2KB RAM, SPI + I2C + UART/LIN
+ IrDA
Analog comparator, HW multiplier
MSP430F41x
Ultra-Low-Power
16-bit MCU
4 to 32KB Flash, 256B to 1KB RAM, SVS,
96 segment LCD
Analog comparator
MSP430F42x
Ultra-Low-Power
16-bit MCU
8 to 32KB Flash, 256B to 1KB RAM, SPI + UART, SVS,
128 segment LCD
3 x 16-bit SD ADC
MSP430F42x0
Ultra-Low-Power
16-bit MCU
16 to 32KB Flash, 256B RAM, 56 segment LCD
5 ch. 16-bit SD ADC, 12-bit DAC
MSP430F43x
Ultra-Low-Power
16-bit MCU
16 to 32KB Flash, 512B/1KB RAM, SPI + UART, SVS,
160 segment LCD
8 ch. 12-bit ADC, analog comparator
MSP430F44x
Ultra-Low-Power
16-bit MCU
32 to 60KB Flash, 1KB/2KB RAM, 2x SPI + UART, SVS,
160 segment LCD
8 ch. 12-bit ADC, HW multiplier
MSP430F47xx
Ultra-Low-Power
16-bit MCU
60KB Flash, 256B RAM, (4) USCI, 160 segment LCD
(4) SD16 ADC, HW multiplier, temp. sensor, analog
comparator
MSP430F241x
Ultra-Low-Power
16-bit MCU
120KB Flash, 8KB RAM, (4) USCI, SVS, temp. sensor
8 ch. 12-bit ADC, analog comparator, HW multiplier
MSP430F261x
Ultra-Low-Power
16-bit MCU
120KB Flash, 8KB RAM, (4) USCI, SVS, DMA, temp.
sensor
Analog comparator, 2 ch. 12-bit DAC, 8 ch. 12-bit
ADC, HW multiplier
MSP430F471xx
Ultra-Low-Power
16-bit MCU
120KB Flash, 8KB RAM, (4) USCI, DMA 160 segment LCD
(7) SD16 ADC, HW multiplier, temp. sensor, analog
comparator
MSP430F54xxA
Ultra-Low-Power
16-bit MCU
128 to 256KB Flash, 16KB RAM, (4) USCI, PMM, DMA,
temp. sensor
16 ch. 12-bit ADC, analog comparator, RTC, internal
voltage regulator for power optimization
MSP430F6638
*Page 8
Ultra-Low-Power
16-bit MCU
1.8V to 3.6V low supply voltage range, wake-up from
standby mode in > 5μs, unified clock system
This device is optimized to achieve extended battery
life in portable measurement applications.
MSP430FG42x0
Ultra-Low-Power
16-bit MCU
16 to 32KB Flash, 256B RAM, 56 segment LCD
5 ch. 16-bit SD ADC, 12-bit DAC, 2 integrated
op amps
MSP430FG43x
Ultra-Low-Power
16-bit MCU
32 to 60KB Flash, 1KB/2KB RAM, SPI + UART, SVS,
128 segment LCD
12 ch. 12-bit ADC, 2 ch. 12-bit DAC, DMA, 3 op amps
MSP430FG461x
Ultra-Low-Power
16-bit MCU
92 to 120KB Flash, 4KB/8KB RAM, SPI + I2C + UART/LIN
+ IrDA, 160 LCD
12 ch. 12-bit ADC, 2 ch.12-bit DAC, A-comp, 3 op
amp, HW multiplier
MSP430FG47x
Ultra-Low-Power
16-bit MCU
32 to 60KB Flash, 2KB RAM, SPI + I2C + UART/LIN +
IrDA, 128 LCD controller
5 ch. 16-bit SD ADC, 2 ch. 12-bit DAC,
comparator_A, 2 op amps
OMAP3530
Applications
Processor
ARM® Cortex-A8, C64x+™, graphics accelerator, video
accelerators
Laptop-like performance at handheld power levels
OMAP3503,
OMAP3515,
OMAP3525
OMAP-L138
*Page 7
C6-Integra™
DSP+Arm
Processor
Dual core SOC, EDMA3, LCD controller, 10/100 Mb/s
EMAC, DDR2/mobile DDR memory controller
The device enables OEMs and ODMs to quickly bring to market
devices featuring robust operating systems support, rich user
interfaces, and high processing perfor­mance life.
OMAP-L137
TMS320C5000™
DSP
Power efficient, high performance
TMS320F28x
32-Bit MCU
TMS320F2802x/3x
Piccolo™
32-Bit
Microcontroller
32-bit architecture, fixed- or floating-point code, up to
225MIPS operation
Up to 60MHz C28x™ core with optional control law
accelerator. Up to 128KB Flash, high resolution (150ps)
PWMs, 4.6MSPS ADC, CAN/LIN, QEP.
TMS320F2823x,
TMS320F2833x
TMS320F283x
Delfino,
TMS320F280x
TMS320F283x
Delfino™
32-Bit
Floating-point
Microcontroller
Microcontroller integration, real-time control
performance
With dedicated, high precision peripherals, Piccolo
microcontrollers are the ultimate combination of
performance, integration, size, and low cost. Ideal for
precision sensing and control applications.
Delfino brings floating point and unparalleled
performance to MCUs. Native floating point brings
increased performance and quicker development.
Ideal for precision sensing and control applications.
™
Up to 300MHz C28x™ core. Up to 512KB Flash, high
resolution (150ps) PWMs, 12MSPS ADC, CAN/LIN, QEP,
external memory bus, DMA.
New products are listed in bold red
additional product information see designated page number.
*For
To view more system block diagram compatible products, visit www.ti.com/ecg
TMS320F2802x/3x
Piccolo,
TMS320F280x
15
ECG and EEG Applications Quick Reference Guide
➔ Selection Table
Component Recommendations (Continued)
Key Features
Benefits
TMS320VC5506
Component
DSP
Description
200MHz, dual MAC, very low stand-by power of 0.12mW
Supported by eXpressDSP™ and many other software
packages and tools
TMS320C5515
*Page 6
DSP
320K bytes zero-wait state on-chip RAM
High performance and low power
Battery Fuel
Gauge
Battery Charger
Battery Charge
Management
Battery Safety
Instant accuracy better than 1% error over lifetime of the
battery
0V operation, ±0.4% charge voltage accuracy, integrated PWM
Multi-chemistry and multi-cell sync switch-mode charger
Automatically adjusts for battery aging, battery self
discharge and temperature inefficiencies
Dynamic power management, multichemistry
High efficiency, pack and system protection functions
Battery pack full-protection analog front end
Galvanic Isolated,
DC/DC Conv.
Load Switch with
Controller Turn-On
Current Limited
Load Switch
Voltage Supervisor
DC/DC Converter
Isolated DC/DC
Converter with
Integrated FETS
Charge Pump
Voltage Inverter
1W, 3kV isolation, minimal external components
Provides individual cell voltages and battery voltage
to battery management host
Safety isolation, removal of ground loops
Other TI Solutions
TMS320V5509A,
TMS320V5502
Power Management
bq20z90-V110
bq24703
bq24721C
bq29330
DCH010505D
TPS22902
TPS22946
TPS3808Gxx
TPS54350
TPS55010
*Page 11
TPS60403
*Page 12
TPS61097-33
Low on resistance, controlled turn-on, ultra small 0.64mm2
package, quick output discharge
Configurable current limit, ultra-small package, 1µA
quiescent current at 1.8V
Low quiescent current, programmable-delay
4.5 to 20VIN 3A DC/DC w/integrated switch FET, sync pin, enable
2.95V to 6V input, 2W, Isolated fly-buck topology,
primary side feedback, 100kHz to 2000kHz switching
frequency
Fixed 250kHz operation, up to 60-mA output current, only
three small 1-μF ceramic capacitors needed, Input voltage
range from 1.6V to 5.5V
Highly efficient, operates down to 0.3V; bypass switch; 5nA
shutdown current; SOT-23
Ultra-small, fully integrated solution
Ultra-small, low quiescent current current limited switch
Circuit initialization and timing supervision
Eliminate beat noise/ceramic caps/FPGA/integration
The TPS55010 is a transformer driver designed to
provide isolated power for iso­lated interfaces, such
as RS-485 and RS-232, from 3.3V or 5V input supply
PowerSave-mode for improved efficiency
TPS65130
TPS717xx
TPS718xx-yy
TPS780xx
Boost Converter
with Bypass
Switch
Step-Down
Converter
Step-Down Conv.
Dual Output
Step-Down Conv.
Buck-Boost
Converter
Boost Converter
Single-Channel LDO
Dual-Channel LDO
LDO with DVS
TPS79901
Single Channel LDO
Very high rejection of power-source noise
CC1101
Sub-1GHz RF
Transceiver
CC2520
2.4GHz ZigBee®/
IEEE 802.15.4 RF
Transceiver
Wake-on-radio functionality; integrated packet handling
with 64B data FIFOs; high RF flexibility: FSK, MSK, OOK,
1.2 to 500kbps; extremely fast PLL turn-on/hop time
Best-in-class coexistence and selectivity properties;
excellent link budget (103dBm); extended temperature
range; AES-128 security module
Ideal for low-power systems; any low-end MCU
can be used; backwards compatible with existing
systems; suitable for fast frequency-hopping systems
Reliable RF link with interference present; 400m
line-of-sight range with the development kit; ideal for
industrial applications; no external processor needed
for secure communication
This solution is provided as a module to help
customers reduce development time, lower
manufacturing costs, save board space, ease
certification, and minimize RF expertise required.
Complete low-cost solution on single chip; ideal for
low-power battery-operated systems; robust and
secure link with good noise immunity; no external
processor needed for secure communication
RF design System-on-Chip for quick time to market.
Provides a robust and complete ZigBee USB dongle
or firmware-upgradable network node
TPS62110
TPS62230
TPS62400
TPS63030
3.1V to 17V VIN, 1.5A conversion, synchronization pin, low
battery indicator, power save mode
Up to 90dB PSRR, excellent AC and transient load regulation
180° out of phase operation, serial interface
1A switch, automatic transition between step down and
boost mode
800mA switch, adjustable, dual output, positive/negative boost
Very high rejection of power-source noise
Very high rejection of power-source noise
Dynamic voltage scaling (DVS) with low IQ 500nA
bq20z70, bq20z80
bq24702, bq24705
DCH010512/15
DCR021205
TPS22901, TPS22922,
TPS22924C, TPS22960
TPS22949, TPS22945
TPS310x
TPS54550
Supper efficient boost, works over entire battery range,
low quiescent current, integrate the bypass switch,
small package
Very low noise/high efficiency
TPS62050
Low noise regulation, 12mm2 solution size
Flexible voltage adjustment for processors and MCUs
TPS62260
TPS62410
Extending application run time, small solution
TPS61020
Two supplies from one switcher
Low-noise power rails for sensitive analog components
Low-noise power rails for sensitive analog components
DVS voltage designed to operate with MSP430 to
increase power savings
Low-noise power rails for sensitive analog components
TPS795xx, TPS799xx
TPS719xx-yy
TPS781
TPS79501, TPS74301
RF ICs
RF Transceivers
CC2500
CC2530
RF Systems-on-Chip
CC2560-PAN1325
*Page 12
Bluetooth® v2.1 +
EDR Transceiver
+10dBm Tx power with transmit power control, -93dBm
receiver sensitivity, support for Bluetooth® power saving
modes, Integrated antenna
CC1110/11
Sub-1GHz
System-on-Chip
CC2530/CC2531
*Page 13
Second Gen.
System-on-Chip
2.4GHz IEEE
802.15.4/RF4CE/
ZigBee
MCU, Flash and RAM in one package; four flexible power
modes for reduced power consumption; includes CC1101
transceiver frequency synthesizer; built-in AES-128
encryption coprocessor
Excellent RX sensitivity, low power, easy to use
development tools
CC2590/91,
CC2530ZNP
New products are listed in bold red. Preview products are listed in bold blue.
*For additional product information see designated page number.
To view more system block diagram compatible products, visit www.ti.com/ecg
CC2510, CC2511
16
ECG and EEG Applications Quick Reference Guide
➔ Selection Table
Component Recommendations (Continued)
Component
Description
Key Features
Benefits
Other TI Solutions
RF ICs (Continued)
RF Systems-on-Chip (Continued)
CC2540
WL1271
WL1273
2.4GHz Bluetooth®
Low Energy
Compliant RF
System-on-Chip
2.4GHz 802.11b/g/n
and Bluetooth® 2.1
Chipset
2.4/5GHz
802.11a/b/g/n
and Bluetooth®
2.1 Chipset
Excellent link budget enabling long range applications
without external frontend, receiver sensitivity, selectivity
and blocking performance
Fast-to-market Bluetooth® low energy compliant
solution
Single-chip 802.11b/g/n WLAN and Bluetooth® solution
using TI’s digital radio processor technology using a
single antenna.
Single-chip 802.11a/b/g/n WLAN and Bluetooth® solution
using TI's digital radio processor technology using a
single antenna.
Sophisticated low-power technology ideal for battery operated
solutions; coexistence features enable simultaneous WLAN and
Bluetooth® operations; supports ANT+ standard.
Sophisticated low-power technology ideal for battery
operated solutions; coexistence features enable
simultaneous WLAN and Bluetooth® operations;
supports ANT+ standard.
Second
Generation
Z-Stack™
Network Processor
ZigBee stack and radio in one chip; implements ZigBee
certified stack; configurable device type and network
settings; excellent selectivity and blocking performance
Add CC2530ZNP and your system is ZigBee enabled;
ideal for battery operated systems; excellent
coexistence with Bluetooth® technology and Wi-Fi.
Reference design
for the ADS1298
Easy-to-use evaluation software, built-in analysis tools
including oscilloscope, FFT, and histogram displays,
flexible input configurations, optional external reference
circuits
The ADS1298ECG FE can be used with a variety of patient
simulators and allows the user to take advantage of the flexible input
multiplexer which can be independently connected to the internallygenerated signals for test, temperature, and lead-off detection.
WL1273
WL1271
RF Network Processor
CC2530ZNP
Toolkits
ADS1298ECGFE-PDK
*Page 3
*For additional product information see designated page number.
To view more system block diagram compatible products, visit www.ti.com/ecg
New products are listed in bold red. Preview products are listed in bold blue.
TI Worldwide Technical Support
Internet
TI Semiconductor Product Information Center
Home Page
support.ti.com
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Product Information Centers
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