Octal-Channel Ultrasound Front-End

The MAX2077 octal-channel ultrasound front-end is a fully integrated, bipolar, high-density, octal-channel ultrasound receiver optimized for low-cost, high-chan- nel count, high-performance portable and cart-based ultrasound systems. The easy-to-use IC allows the user to achieve high-end 2D and PW imaging capability using substantially less space and power. The highly compact imaging receiver lineup, including a low-noise Amplifier (LNA), variable-gain Amplifier (VGA), and anti- alias Filter (AAF), achieves an ultra-low 2.4dB noise fig- ure at RS = RIN = 200Ω at a very low 64.8mW per- channel power dissipation. The full imaging receiver channel has been optimized for second-harmonic imaging with -64dBFS second-harmonic distortion per- formance with a 1VP-P 5MHz output signal and broad- band SNR of > 68dB* at 20dB gain. The bipolar front-end has also been optimized for excellent low- velocity PW and color-flow Doppler sensitivity with an exceptional near-carrier SNR of 140dBc/Hz at 1kHz off- set from a 5MHz 1VP-P output clutter signal. The MAX2077 octal-channel ultrasound front-end is available in a small 8mm x 8mm, 56-pin thin QFN or 10mm x 10mm, 68-pin thin QFN package with an exposed pad and is specified over a 0°C to +70°C tem- perature range. To add CW Doppler capability, replace the MAX2077 with the MAX2078. By Maxim Integrated Products