MD2131K7-G More Semiconductors - ICs by Microchip Technology

High Speed Ultrasound Beamforming Source Driver


The MD2131 is a high-speed, arbitrary waveform, push-pull source driver. It is designed for medical ultrasound imaging and HIFU beamforming applications. It also can be used in NDT, Sonar and other ultrasound phase-array focusing beamforming applications. The MD2131 consists of CMOS digital logic input circuits, an 8-bit current DAC for waveform amplitude control, and four PWM current-sources. These current sources are constructed with the high-speed, in-phase and quadrature current-switch matrix and the built-in sine and cosine angle-to-vector look-up table. The angular resolution of the vector table is 7.5O per step, with a total range of 48 steps. There are four logic input signals to control the in-phase and quadrature PWM push-pull current-source’s output timing, frequency, cycle in the burst and waveform envelope. The MD2131’s output stage is designed to drive two DN2625 depletion N-type MOSFETs. The MOSFET drains are connected to a center-tap ultrasound frequency pulse transformer. The secondary winding of the transformer can connect to the ultrasound piezo or capacitive transducer via a cable with a good impendence match. The MD2131 has a high-speed, SPI-compatible interface to achieve per-scan-line fast updating of the data register for changing the beamforming phase angles and apodization amplitudes.

Where to Buy

Prices starting from US$12.40

Distributor Stock
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Newark
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RS Americas
from US$12.40
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Features

High resolution transmitting waveform
Up to 3.0A push-pull source-driving current
230VP-P maximum output, uses two DN2625 FETs
Angle vector beamforming I-Q switcher matrix
8-bit apodization DAC and 7.5° angular resolution
Flexible frequency-resolution trade-off
Programmable aperture windowing
250MHz maximum sampling rate
25MHz ultrasound maximum frequency
PWM modulation push-pull current source
Focusing phase adjustment & chirp waveform
Fast SPI interface
2.5V CMOS logic interface
+5.0V single power supply
Low second order harmonic distortions

Specifications

Resolution 7.5° Phase
Amplitude Control PWM
Apodization 8-Bit SPI
Input Voltage (V) 2.5
Typical Delay Time (ns) 4
Output Current (A) 0 - 3.0
Package QFN-40

Environmental Information

JEDEC Indicator e4
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.07392
Shipping Weight (kg) 0.469388
Lead Count 40
Package Type WQFN
Package Width or Size 5x5x0.8mm
Soldering Composition NiPdAu

Alternative Descriptions

HIGH SPEED ULTRASOUND BEAMFORMING SOURCE DRIVER40 WQFN 5x5x0.8mm TRAY | Microchip Technology Inc. MD2131K7-G | RS Americas
High Speed Ultrasound Beamforming Source Driver 40 Wqfn 5X5X0.8Mm Tray Rohs Compliant: Yes |Microchip MD2131K7-G | Newark Electronics


Frequently Asked Questions

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Additional datasheets, footprints and schematics for MD2131K7-G are listed on our Part Details page. You can also find images and similar parts to MD2131K7-G on this page.

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Is the MD2131K7-G RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

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Authorised distributors including RS Americas and Newark Electronics have stock available or on a lead time for MD2131K7-G.

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