Data Converters
Analog-to-Digital Converters
MAX2082

MAX2082

Octal Ultrasound Transceiver with Integrated AFE, Pulser, T/R Switch, and Coupling Capacitors

Industry's Only Ultrasound Transceiver Saves 40% Power and Increases Reliability by Replacing Thousands of Discrete Components


Description

The MAX2082 is the industry's first fully integrated octal ultrasound transceiver. The device is optimized for high channel count, high-performance portable and cart-based ultrasound systems. The easy-to-use transceiver allows the user to achieve "high end" 2D and Doppler imaging capability using substantially less space and power.

The transceiver transmitters are high-performance 3-level 2A pulsers capable of generating high voltage pulses up to ±105V. All eight channels have overvoltage-embedded protection diodes and integrated active return-to-zero clamps. The transmitters also feature embedded floating power supplies (FPSs) to eliminate the need for bulky external pulser driver coupling capacitors. The highly compact receiver with T/R switch; LNA; input coupling and feedback caps; and VGA, AAF, ADC, and digital HPF achieves an ultra-low 2.8dB noise figure at RS = RIN = 200Ω at a very low 135mW per channel power dissipation at 50Msps. The receive channel has been optimized for second harmonic imaging with -70dBFS second harmonic distortion performance at fIN = 5MHz over the full TGC range. Dynamic range has also been optimized for exceptional pulsed and color flow Doppler performance under high-clutter conditions. The full receive channel exhibits an exceptional 75.7dBFS SNR at 5MHz with a 2MHz bandwidth. The bipolar front-end and CMOS ADC have also been optimized for an exceptionally low near-carrier modulation noise of 137dBc/Hz at 1kHz offset from a 5MHz tone for excellent low-velocity Doppler sensitivity.

The MAX2082 also includes an octal CWD beamformer for a full Doppler solution. Separate mixers for each channel are made available for optimal CWD sensitivity yielding an impressive 151dBc/Hz dynamic range per channel at 1kHz offset from a 1.25MHz carrier.

The MAX2082 octal ultrasound front-end is available in a small 10mm x 26mm BGA package and specified over the 0°C to +70°C temperature range.

Key Features

  • Eight Full Channels of HV Pulser; T/R Switch; LNA Input and Feedback Coupling Caps; LNA, VGA, AAF, and CWD Mixers; 12-Bit ADC; and Digital HPF in a Small 10mm X 23mm BGA Package
  • High-Voltage 3-Level Pulsers (up to ±105V) with Active Return-to-Zero and Floating Power Supply Drivers for Reduced External Components
  • Programmable Pulser Current Capability from 0.5A to 2A for Reduced Power Consumption in Lower Voltage Transmit Modes Like CWD
  • Extremely Fast Propagation Delay Pulsers (20ns) with Excellent Rise and Fall Matching for Excellent THD2 Performance (-45dBc at 5MHz) and Excellent Phase Noise (-155dBc/Hz at 1kHz Offset f = 1.25MHz)
  • Ultra-Low Full Channel Receiver Noise Figure of 2.8dB at RIN = RS = 200Ω
  • High Dynamic Range Receiver with 75.7dBFS SNR at fIN = 5MHz and 2MHz Bandwidth
  • Ultra-Low Power (134mW per Channel) Receiver (Includes T/R Switch, LNA, VGA, AAF, and ADC) Normal Imaging Mode at 50Msps)

Applications/Uses

  • Ultrasound Imaging

Quality and Environmental Data

Request Reliability Report for: MAX2082 
Lead-Free Package Tin (Sn) Whisker Reports
 

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