MAX2079CXE-T 查看數據表（PDF） - Maxim Integrated

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MAX2079CXE-T

Low-Power, High-Performance, Fully Integrated Octal Ultrasound Receiver (Octal LNA, VGA, AAF, ADC, and CWD Beamformer)

Maxim Integrated 

MAX2079

Low-Power, High-Performance, Fully Integrated

Octal Ultrasound Receiver (Octal LNA, VGA,

AAF, ADC, and CWD Beamformer)

General Description

Benefits and Features

The MAX2079 fully integrated octal ultrasound receiver

is optimized for high channel count, high-performance

portable and cart-based ultrasound systems. The easy-

to-use integrated receiver allows the user to achieve

high-end 2D and Doppler imaging capability using

substantially less space and power. The highly compact

low-noise amplifier (LNA), variable-gain amplifier (VGA),

anti-alias filter (AAF), analog-to-digital converter (ADC),

and digital highpass filter (HPF) achieve an ultra-low

2.8dB noise figure at RS = RIN = 200I with a very low

120mW per channel power dissipation at 50Msps. The

full receive channel has been optimized for second-

harmonic imaging with an exceptional 76dBFS SNR

over a 2MHz bandwidth, and -70dBc second-harmonic

distortion at fRF = 5MHz over the full receiver gain range.

Near-carrier dynamic range has also been optimized for

exceptional pulsed and color-flow Doppler performance

under high-clutter conditions. The bipolar front-end and

CMOS ADC achieve an exceptional near-carrier SNR of

137dBFS/Hz at 1kHz from a 5MHz tone for excellent low-

velocity Doppler sensitivity.

The device also includes an octal CWD beamformer for

a full Doppler solution. Separate mixers for each channel

are available for optimal CWD sensitivity.

The MAX2079 octal ultrasound front-end is available in a

small, 10mm x 10mm, CTBGA package and is specified

over the 0NC to +70NC temperature range.

Applications

S Minimizes PCB Area and Design Cost

 8 Full Channels of LNA, VGA, AAF, 12-Bit ADC,

Digital HPF and CWD Mixer Beamformer in a

Small, 10mm x 10mm CTBGA Package

S Improves System Sensitivity

 Ultra-Low Full-Channel Noise Figure of 2.8dB at

RS = RIN = 200I

S Improves System Dynamic Range

 76dBFS Image Path SNR Over 2MHz Bandwidth

at fRF = 5MHz

 137dBFS/Hz Image Path SNR at 1kHz Offset

from fRF = 5MHz

S Consumes Less Power

 Ultra-Low Power of Only 120mW per Full

Channel in Imaging Mode at 50Msps

S Selectable Active Input Impedance Matching of

50I, 100I, 200I, and 1kI

S Programmable VGA Output Clamp

S Integrated Selectable 3-Pole 9MHz, 10MHz, 15MHz,

and 18MHz Butterworth Anti-Alias Filter

S Programmable, Digital Highpass, 2-Pole Filter

S Serial LVDS Digital Outputs

S Fast Recovery Low-Power Modes (< 2µs)

S Separate Channel I/Q CWD Mixers for Improved

Dynamic Range and Sensitivity

Medical Ultrasound Imaging

Sonar

Ordering Information appears at end of data sheet.

For related parts and recommended products to use with this part, refer to www.maximintegrated.com/MAX2079.related.

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

19-5901; Rev 1; 10/12

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