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

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  • The STHV800 is an octal, monolithic, high-voltage and high-speed pulse generator. It is designed for medical ultrasound applications, but can be used for other piezoelectric, capacitive or MEMS transducers.

    The device integrates a controller logic interface circuit (compatible with both 1.8 V and 3.3 V input signals), level translators, MOSFET gate drivers, noise blocking diodes, and high power P-channel and N-channel MOSFETs as the output stage for each channel. These MOSFETs are capable of providing more than 2 A of peak output current. Each channel has a dedicated bridge in order to reduce power dissipation and jitter during continuous wave mode (peak current is limited to 0.3 A). This CW bridge has dedicated power supplies (HV_CW) which are fully independent on the main HV supplies.
    These HV_CW supplies can be shorted to the HV supplies. The fundamental structure of each channel also consists of active clamping to ground circuitry, anti-leakage and anti-memory block, a thermal sensor to protect the device and an integrated TR-switch (just 8 Ω as equivalent resistor ) to connect the HV output to its LV output, guaranteeing strong decoupling during the transmission phase.
    The eight independent T/R switches can be used in both a dedicated RX chain per channel or in a multiplexing configuration.
    The clamp circuit has a current capability up to 2 A and works directly on the output pin, carrying this node exactly to zero. This feature allows minimized injection change during the transition from clamp to RX state.
    In addition, the STHV800 includes self-biasing circuitry which allows very low power consumption during the RX phase (down to 200 µW global power dissipation) and thermal shutdown block sensing by an external dedicated pin (THSD).
    One of the main benefits of this device is that it requires very few external components: only decoupling capacitors on the HV and LV supplies, and a resistor to pull up the THSD pin (moreover, this resistor can be shared by many devices).
    Each channel is driven independently by only 2 digital bits, which in CW mode become one bit. An external clock can be used with the STHV800 to synchronize all the input signals. This feature, however, is optional: if the CK pin is tied to ground the device works in asynchronous mode.

    Key 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 currentDown to 20 ps jitterLow 2nd harmonic distortion
      • CW half bridge:±0.3 A source and sink currentDown to 10 ps jitterVery 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

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min
max
STHV800L TFLGA-56LD 8x8x0.9mm Tray -40 125
Active
16.0 1000 EAR99
MORE INFO

Country of Origin:

FRANCE

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Distributor availability ofSTHV800L

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 697 1 Order Now
RS COMPONENTS EUROPE 433 1 Order Now
ARROW EUROPE 1828 0 Order Now
MOUSER WORLDWIDE 156 1 Order Now
Farnell Element14 EUROPE 332 1 Order Now

Distributor reported inventory date: 2019-05-21

Distributor Name

DIGIKEY

Stock

697

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

433

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

1828

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

156

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

332

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-21

Buy now

STHV800L

Package

TFLGA-56LD 8x8x0.9mm

Packing Type

Tray

Unit Price (US$)

16.0*

Distributor availability ofSTHV800L

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 697 1 Order Now
RS COMPONENTS EUROPE 433 1 Order Now
ARROW EUROPE 1828 0 Order Now
MOUSER WORLDWIDE 156 1 Order Now
Farnell Element14 EUROPE 332 1 Order Now

Distributor reported inventory date: 2019-05-21

Distributor Name

DIGIKEY

Stock

697

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

433

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

1828

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

156

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

332

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-21

Operating Temperature (°C)

(min)

-40

(max)

125

Marketing Status

Active

Unit Price (US$)

16

Quantity

1000

ECCN (US)

EAR99

Country of Origin

FRANCE

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Related Applications

Medical and Healthcare

Evaluation Tools

    • Part Number

      STHV800 Ultrasound Pulser IC evaluation board

      Cost effective ultrasound pulser IC evaluation board based on the STHV800

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DB2236
      Octal ±90 V, ±2 A, 3-level RTZ, high-speed ultrasound pulser
      2.0
      301.77 KB
      PDF
      DB2236

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

    • Description Version Size Action
      AN5258
      Extending output performance of ST ultrasound pulsers
      2.0
      2.55 MB
      PDF
      AN4471
      STEVAL-IME009V1 evaluation board based on the STHV800 high voltage pulser
      1.1
      1.29 MB
      PDF
      AN5258

      Extending output performance of ST ultrasound pulsers

      AN4471

      STEVAL-IME009V1 evaluation board based on the STHV800 high voltage pulser

Publications and Collaterals

    • Description Version Size Action
      Octal ultrasound pulser High-voltage, high-speed STHV800
      276.81 KB
      PDF

      Octal ultrasound pulser High-voltage, high-speed STHV800

    • Description Version Size Action
      Semiconductor solutions for healthcare applications 1.0
      665.18 KB
      PDF

      Semiconductor solutions for healthcare applications

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STHV800L
Active
TFLGA-56LD 8x8x0.9mm Industrial Ecopack2

STHV800L

Package:

TFLGA-56LD 8x8x0.9mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TFLGA-56LD 8x8x0.9mm

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.