MAX2078CTK+T

Overview

The MAX2078CTK+T is an octal-channel ultrasound front-end integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. It features eight full channels optimized for low-cost, high-channel-count portable and cart-based ultrasound systems. The device integrates a low-noise amplifier (LNA), variable-gain amplifier (VGA), and anti-alias filter (AAF) to achieve an ultra-low noise figure of 2.4dB at a power dissipation of 64.8mW per channel. It supports second-harmonic imaging with -64dBFS distortion and includes programmable continuous-wave Doppler (CWD) beamformers with separate I/Q mixers. The component operates within a temperature range of 0°C to +70°C and is housed in a 68-pin thin QFN package measuring 10mm x 10mm.

Feature Summary

• Integrates eight full ultrasound receiver channels including LNA, VGA, and AAF for compact system design.
• Optimized for second-harmonic imaging with exceptional near-carrier SNR for low-velocity PW and color-flow Doppler sensitivity.
• Includes fully integrated programmable CWD beamformer with separate I/Q mixers for optimal performance in high-clutter environments.

Applications

• Portable ultrasound imaging systems
• Cart-based ultrasound equipment
• Compact medical ultrasound devices requiring high channel counts

Procurement Notes

Verify the specific suffix 'T' against official documentation to confirm tape-and-reel packaging status, as distributor listings may vary. Confirm RoHS compliance details directly from the manufacturer datasheet. Ensure the operating temperature range of 0°C to +70°C aligns with your system requirements. Cross-reference the 68-TQFN package dimensions with your PCB layout constraints.

Selection Notes

Select this component when designing high-channel-count ultrasound systems requiring integrated signal conditioning. The device eliminates external components for the front-end chain, reducing board space and power consumption. Consider the 2.4dB noise figure and 64.8mW per channel power dissipation for sensitivity and thermal management planning. Verify compatibility with existing piezoelectric transducer impedances.

Part Context

The MAX2078 belongs to Maxim Integrated's lineup of highly integrated ultrasound front-end solutions. It is designed to replace discrete amplifier and filter stages, simplifying the design of 2D, pulsed-wave (PW), and continuous-wave Doppler (CWD) imaging systems. The integration allows for significant reductions in system size and power while maintaining high-performance imaging capabilities comparable to larger, multi-board architectures.

FAQ

What is the noise figure performance of the MAX2078?

The MAX2078 achieves an ultra-low noise figure of 2.4dB when RS = RIN = 200Ω.

Does the MAX2078 support continuous-wave Doppler applications?

Yes, it includes a fully integrated programmable CWD beamformer with separate I/Q mixers for each channel to ensure optimal sensitivity in high-clutter environments.