STHV1600

概述

样片和购买

解决方案

文件

CAD资源

工具与软件

质量与可靠性

开始

Partner products

Sales Briefcase

Please enter your desired search query and search again

产品概述

描述

This monolithic, high-speed transmitter features 16 independent channels with built-in digital beamforming, that generates 5-Level high voltage pulses (up to ±100 V) suitable to excite multiple channels of an ultrasound transducer.

Each analog channel structure integrates an active RTZ circuit (Clamp) and a T/R switch guaranteeing high OFF isolation between the high-voltage transmitter and the low-voltage receiver when the pulser is transmitting. T/R switches turn ON while receiving echo signals connecting the transducer to the receiver.

Each channels host two independent half bridges (TX0 and TX1) capable of up to ±2A peak output current in 3 or 5 levels configuration. These half bridges can be put in parallel so to provide 3-level profiles up to ±4A current capability on all 16 outputs.

Anti-leakage, anti-memory block, thermal sensors and recirculation current protection features complete the architecture.

Beamforming in ultrasound transmission has traditionally been implemented using analog delay lines. The STHV1600 embeds a digital beamforming mode allowing to program accurate steering of all channels with a resolution as low as 5ns: the signal from each individual transducer element is properly delayed in order to steer the beam in the desired direction.

Both the digital state machine and serial communication interface can be clocked up to 200MHz with differential or rail-to-rail single-ended embedded options.

A generous memory allows to store several patterns to drive output channels with desired code excitation. Suitable registers allow handling of all device operations in the proper sequence and managing device diagnostic features.

Twelve low voltage capacitors are embedded in the package to reduce the external BoM.

STHV1600 is available in a 10mm x 10mm x 1.4mm 144 pins 0.8mm pitch LFBGA package and is specified for operation from 0°C to 80°C.

所有功能
0 to 200 V peak-to-peak output signal

Up to 30 MHz operating frequency

Gate driver self-biased architecture; no filtering capacitors required

Pulsed wave (PW) mode operation:

5/3 level output

±2 A / ±4 A source and sink current

Continuous wave (CW) mode operation:

150 mW power consumption/channel

270 fs RMS jitter (100 Hz-20 kHz)

-147 dBc/Hz @ 1 kHz phase noise

Elastography mode operation

Fully integrated real clamping-to-ground function

11 Ω synchronous active clamp

±2 A source and sink current

Fully integrated T/R switch

9 Ω ON resistance

28 pF parasitic capacitance

Compliant with receiver multiplexing function

Auxiliary integrated circuits

Noise blocking diode function

Recirculation current protection

Anti-memory feature

Thermal protection

Undervoltage protection and bias supply checks
Programmable power management to optimize the performance into a probe

TX Beamforming

Programmable channels delay for beam-steering and beam-focusing

Clock frequency up to 200 MHz

Delay from 0 to 327 µs with 5 ns resolution at 200MHz

425 ns minimum delay table writing time

Embedded volatile memory to store transmission patterns

64 kbit (256 rows x 16 bits per channel)

Waveform compression and repetition algorithm

Easy driving control

Device control via serial interface

Few input signals to drive several devices

Diagnostic interrupt output

Single trigger input with anti-glitch to manage TX/RX

Checksum and parity check

Very low thermal resistance

Latch-up free thanks to HV SOI technology

Only a few passive components required

differential or rail-to-rail single-ended digital inputs (e.g. LVDS, LVPECL, VML, CML or CMOS)
阅读更多阅读较少信息