Compact pulser can be used in ultrasound applications

A 16-channel pulser from STMicroelectronics integrates beamforming, a high-voltage stage, and internal memory, allowing the STHV1600 to address multiple platforms.

Targeting medical and industrial applications, the high-voltage, compact, robust and cost-effective transmission pulser is built using ST’s proven BCD8s-SOI technology that supports analogue (bipolar), digital (CMOS), and power (DMOS) circuits on the same die.

The STHV1600 can be used in cart systems and portable ultrasound equipment. It’s introduction reinforces the company’s portfolio of four- and eight-channel pulser transmitters for medical and industrial ultrasound applications. By integrating high-resolution beamforming for its 16 independent channels, the size of the STHV1600 transmission (TX) pulser is minimised. The pulser also offers the capability to program code excitation, allowing users to implement high voltage stages and store the patterns in memory. For maximum flexibility, each channel can support up to five output levels and the output stages can provide up to ±2A peak output current, independent from the high-voltage power-supply pins.

The STHV1600 includes several global blocks including thermal protection for the logic and for each channel, under-voltage protection, and self-biased high-voltage MOSFET gate drivers with internal checks. The IC includes 65kbits of embedded memory to store pattern-control settings.

The STHV1600 is supplied in a 144-ball 10×10 TFBGA, It is in production and currently sampling to lead customers. An evaluation board for the STHV1600, STEVAL-IME014V1 is available to select customers.

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