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MAX2079 Scheda tecnica(PDF) 1 Page - Maxim Integrated Products |
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MAX2079 Scheda tecnica(HTML) 1 Page - Maxim Integrated Products |
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1 / 49 page  Low-Power, High-Performance, Fully Integrated Octal Ultrasound Receiver (Octal LNA, VGA, AAF, ADC, and CWD Beamformer) MAX2079 General Description 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 Medical Ultrasound Imaging Sonar Benefits and Features 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 19-5901; Rev 1; 10/12 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. |
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