Picture-perfect ultrasound

TI’s analog front end solutions for used in ultrasound applications

Ultrasound

Benefits: Higher resolution Portable Affordable Faster scans, faster boot-time Less invasive Instant diagnostics

TI Technology: High-performance analog

High-speed data converters and amplifiers

Power management Clocks Interface devices

DSPs High-performance DSPs DaVinciTM embedded media

processors OMAPTM applications

processors

AFE5805

LNA VCA ADCLow PassFilter

PGA

Audio Output

Tx Buffer Amp

DACPassiveLPF

BeamformerRx

Central Control Unit

BeamformerBeamformer

(FPGA)

Tx

DisplayAmpAudio

Ultrasound block diagram with Integrated Analog Front End - AFE5805

CW Analog Beam Former

http://www.ti.com/ultrasound

PowerManagement

FETDriver

ADCColor

Doppler (PW)Processing(F-Mode)

Data Transmission

TempSensor

ClockSource

Image & Motion

Processing(B-Mode)

SpectralDoppler

Processing(D-Mode)

ProcessorInterfaceAmplifierPowerADC/DACOther

Legend

Transducer

HV MUX/DEMUX

T/RSwitches

New AFE58xx family

64

128

256

1024-

SystemChannels

Mid-Range

Time

Low-End/Portable

512

32

Premium & High-End

Mid

Ran

ge

Po

rtab

le

Hig h

En

d

AFE58xx Next-

generationPortable

AFE5805

AFE58xx Next-generation

high end

Sampling FutureDevelopment

Ultrasound Analog Front-End – AFE5805 Integrated Rx-Part: 8 Channel LNA+VCA+ADC

First of a family of parts with same pin-out addressing multiple segments with similar software/logic and support circuitry

AFE5805 Highlight Performance for Ultrasound

• Low Noise: 0.85nV/rt(Hz)• Low Power: 122mW/ch at 40 MSPS• Integrated 12-Bit, 50 MSPS ADC• Wide Gain Control Range of 46 dB• Good Matching Among 8-channels• Excellent Overload Recovery• Good IMD3 Performance• Low Offset Drift over Temperature• 135-pin, 15 x 9 mm, BGA package

AFE5805: 8-channel analog front end

Higher integration, 50% smaller size Integrated LNA, VCA, PGA, LPF, 12-bit 50 MSPS ADC Package: 135-pin 15x9 mm BGA Enables portability with 50% smaller size

15mm

9mm

AFE5805:Best in class noise & power performance

20% lower power (122 mW per channel at 40MSPS) enables portability

40% lower noise (0.85nV/rtHz at 2 MHz) achieves superior image quality

Gain vs Vcntl

-10

0

10

20

30

40

50

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2

Vcntrl (V)

Ga

in (

dB

)

30dB27dB25dB20dB

AFE5805 performance:Higher gain, wider gain control range for greater image sensitivity

46dB

50dB

AFE5805 availability & pricing

AFE5805 EVM: 3.5х4 inch (9*10cm)

Samples: Available now

EVM: Available now

Production: Summer ‘08

Price: $75 per 100 units

www.ti.com/ultrasound

Enables portability with 50% smaller size

AFE5805: summary

UltrasoundApplications

Complete Analog Front End reduces component count for more affordable ultrasound

Best in class noise & power performance for sharper and more sensitive picture quality

First device in AFE58xx family of pin-to-pin compatible Analog Front Ends targeting all segments of the Ultrasound market from low-end to high-end

20% lower power 40% less noise Improved dynamic range

THANK YOU