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AFE sensores ultrasónicos

TUSS4470

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IC de sensor ultrasónico de accionamiento directo con amplificador logarítmico

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TUSS4470

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Detalles del producto

Type Analog front-end (AFE) Features Direct drive Gain (min) (dB) 19 Gain (max) (dB) 113 Number of input channels 1 Supply voltage (min) (V) 5 Supply voltage (max) (V) 36 Operating temperature range (°C) -25 to 105 Interface type SPI Rating Catalog
Type Analog front-end (AFE) Features Direct drive Gain (min) (dB) 19 Gain (max) (dB) 113 Number of input channels 1 Supply voltage (min) (V) 5 Supply voltage (max) (V) 36 Operating temperature range (°C) -25 to 105 Interface type SPI Rating Catalog
WQFN (RTJ) 20 16 mm² 4 x 4
  • Integrated driver for directly driving transducers and receiver stage with analog output for ultrasound applications
  • 86-dB input dynamic range analog front-end
    • First stage low noise amplifier adjustable to 10, 12.5, 15 and 20 V/V
    • Configurable bandpass filter from 40 KHz to 500 KHz
    • Wide-band logarithmic amplifier
  • Supported transducer frequencies (controlled by external clock)
    • 40 KHz to 1 MHz
    • Pre-driver mode: 40 KHz to 440 KHz
  • For low-power applications
    • Standby mode: 1.7 mA (typical)
    • Sleep mode: 220 µA (typical)
  • Configurable drive stage:
    • Direct drive using internal H-Bridge for transducer excitation
    • Pre-driver configuration to use internal H-bridge to drive external Field Effect Transistors (FETs) for higher current drive
    • Configurable burst patterns using IO1 and IO2 pins
  • Outputs:
    • Voltage output of the demodulated echo envelope on VOUT
    • Input signal zero crossing comparator output on OUT3 pin
    • Programmable VOUT threshold crossing on OUT4 pin
  • Serial Peripheral Interface (SPI) for configuration by microcontroller (MCU)
  • Integrated driver for directly driving transducers and receiver stage with analog output for ultrasound applications
  • 86-dB input dynamic range analog front-end
    • First stage low noise amplifier adjustable to 10, 12.5, 15 and 20 V/V
    • Configurable bandpass filter from 40 KHz to 500 KHz
    • Wide-band logarithmic amplifier
  • Supported transducer frequencies (controlled by external clock)
    • 40 KHz to 1 MHz
    • Pre-driver mode: 40 KHz to 440 KHz
  • For low-power applications
    • Standby mode: 1.7 mA (typical)
    • Sleep mode: 220 µA (typical)
  • Configurable drive stage:
    • Direct drive using internal H-Bridge for transducer excitation
    • Pre-driver configuration to use internal H-bridge to drive external Field Effect Transistors (FETs) for higher current drive
    • Configurable burst patterns using IO1 and IO2 pins
  • Outputs:
    • Voltage output of the demodulated echo envelope on VOUT
    • Input signal zero crossing comparator output on OUT3 pin
    • Programmable VOUT threshold crossing on OUT4 pin
  • Serial Peripheral Interface (SPI) for configuration by microcontroller (MCU)

The TUSS4470 is a highly integrated direct drive analog front end for industrial ultrasonic applications. The transducer drive stage is an internal H-bridge that can be configured to drive the transducer in direct-drive mode to achieve maximum voltage across the transducer. The internal H-bridge can also be configured as a pre-driver for external FETs, enabling higher current and voltage drive for larger transducers.

The receive signal path includes a low-noise linear amplifier, a bandpass filter, followed by a logarithmic gain amplifier for input dependent amplification. The logarithmic amplifier allows for high sensitivity for weak echo signals and offers excellent input dynamic range over full range of reflected echoes.

The drivers can be controlled directly through the microcontroller for complete customization of the burst signal, or can be programmed through SPI with a customizable burst length. The TUSS4470 can support a single transducer to send and receive burst signals, or can set up two transducers to split the send and receive functions.

The TUSS4470 is a highly integrated direct drive analog front end for industrial ultrasonic applications. The transducer drive stage is an internal H-bridge that can be configured to drive the transducer in direct-drive mode to achieve maximum voltage across the transducer. The internal H-bridge can also be configured as a pre-driver for external FETs, enabling higher current and voltage drive for larger transducers.

The receive signal path includes a low-noise linear amplifier, a bandpass filter, followed by a logarithmic gain amplifier for input dependent amplification. The logarithmic amplifier allows for high sensitivity for weak echo signals and offers excellent input dynamic range over full range of reflected echoes.

The drivers can be controlled directly through the microcontroller for complete customization of the burst signal, or can be programmed through SPI with a customizable burst length. The TUSS4470 can support a single transducer to send and receive burst signals, or can set up two transducers to split the send and receive functions.
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Documentación técnica

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* Data sheet TUSS4470 Transformer Drive Ultrasonic Sensor IC With Logarithmic Amplifier datasheet (Rev. A) PDF | HTML 19 may 2022
Application note Ultrasonic Sensing Basics (Rev. D) PDF | HTML 02 dic 2021
Application note Ultrasonic Application Optimization and Usage Guide: TUSS4470 and TDC1000 PDF | HTML 18 ene 2021
Technical article Shrink your solution size with transformer-less ultrasonic ICs PDF | HTML 15 jun 2020
User guide TUSS44x0 EVM for Ultrasonic Sensors User's Guide (Rev. A) 02 abr 2020
Application note TUSS44x0 Software Development Guide PDF | HTML 17 mar 2020
Application note Logarithmic Amplifier for Ultrasonic Sensor Signal Conditioning 13 mar 2020
E-book E-book: An engineer’s guide to industrial robot designs 12 feb 2020

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

BOOSTXL-TUSS4470 — Transductor ultrasónico de accionamiento directo TUSS4470 con módulo de evaluación LDO

The TUSS4470 EVM is a collective of the BOOSTXL-TUSS4470 and MSP-EXP430F5529LP, which enables users to fully evaluate the TUSS4470 ultrasonic sensor signal conditioner and H-bridge driver. Transducer compatibility is expanded to open- or closed-top transducers operating between 30 to 1000 kHz. The (...)
Guía del usuario: PDF
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Soporte de software

SLDC021 — TUSS Generation III EVM GUI

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Productos y hardware compatibles

Productos y hardware compatibles

Productos
AFE sensores ultrasónicos
TUSS4440 — IC de sensor ultrasónico de accionamiento de transformador con amplificador logarítmico TUSS4470 — IC de sensor ultrasónico de accionamiento directo con amplificador logarítmico
Desarrollo de hardware
Placa de evaluación
BOOSTXL-TUSS4440 — Transductor ultrasónico accionado por transformador TUSS4440 con módulo de evaluación LDO BOOSTXL-TUSS4470 — Transductor ultrasónico de accionamiento directo TUSS4470 con módulo de evaluación LDO
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Soporte de software

SLDC023 — TUSS44x0 Energia Library and Code Example

Productos y hardware compatibles

Productos y hardware compatibles

Productos
AFE sensores ultrasónicos
TUSS4440 — IC de sensor ultrasónico de accionamiento de transformador con amplificador logarítmico TUSS4470 — IC de sensor ultrasónico de accionamiento directo con amplificador logarítmico
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Archivo Gerber

PGA460 Transducer and Transformer Listing

SLAC787.ZIP (21 KB)
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Archivo Gerber

Direct-Drive Ultrasonic Proximity Sensing Module Design Files (TUSS4470PSM)

SLDC022.ZIP (4425 KB)
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Paquete Pasadores Descargar
WQFN (RTJ) 20 Ver opciones
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Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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Soporte y capacitación

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