STHV800

Octal ±90 V, ±2 A, 3-level RTZ, high-speed ultrasound pulser

Data brief

Features

•

High-density ultrasound transmitter

•

Two independent half-bridges per channel

•

0 to ±90 V output voltage

•

Power-up free

•

Synchronization of the input signals

(selectable) by an external clock

•

Up to 20 MHz operating frequency

•

Low-power, high-voltage, high-speed drivers

•

2 independently-supplied half bridges

(shorted-option) for each channel, one

dedicated to continuous wave (CW) mode

−

Main half bridge:

−

±2 A source and sink current

−

Down to 20 ps jitter

−

Low 2nd harmonic distortion

−

CW half bridge:

−

±0.3 A source and sink current

−

Down to 10 ps jitter

−

Very low power consumption

•

Fully integrated real clamping-to-ground

function

−

8 Ω synchronous active clamp

−

±2 A source and sink current

•

Fully integrated TR switch

−

8 Ω ON resistance

−

Up to 300 MHz BW

−

Current consumption down to 10 μA in

RX phase

−

Receiver multiplexing function

•

1.8 V to 3.6 V CMOS logic interface

•

Auxiliary integrated circuits

−

Noise blocking diodes

−

Anti-leakage on output node

−

Fully self-biasing architecture

−

Thermal protection

•

Latch-up free due to HV SOI technology

•

Very few external passive components or

supplies needed

Applications

•

Medical ultrasound imaging

•

Pulse waveform generator

•

NDT ultrsound transmission

•

Piezoelectric transducer drivers

•

Point-of-care ultrasound imaging equipment

Table 1: Device summary

Order code

Package

Packing

STHV800L

TFLGA-56LD

Tape and reel

TFLGA-56LD(8x8x0.9 mm)

April 2014

DocID026018 Rev 2

1/5

For further information contact your local STMicroelectronics sales

office

www.st.com