DAC8742H

ACTIVO

Módem compatible con HART®, FOUNDATION Fieldbus™ y PROFIBUS PA con UART/SPI

Detalles del producto

Interface type SPI, UART Features FOUNDATION Fieldbus MAU, HART Modem, Low Power, Profibus PA Modem Reference type Ext, Int Rating Catalog Output range (max) (mA/V) 0.5 Output range (min) (mA/V) 0 Operating temperature range (°C) -55 to 125
Interface type SPI, UART Features FOUNDATION Fieldbus MAU, HART Modem, Low Power, Profibus PA Modem Reference type Ext, Int Rating Catalog Output range (max) (mA/V) 0.5 Output range (min) (mA/V) 0 Operating temperature range (°C) -55 to 125
TQFP (PBS) 32 49 mm² 7 x 7
  • HART-Compliant Physical Layer Modem
    • 1200/2200 Hz HART FSK Sinusoids
    • Register Programmable Amplitude of TX Signals
      (DAC8741H / DAC8742H only)
    • Integrated RX Demodulator and Band-Pass Filter with Minimal External Components
  • FOUNDATION Fieldbus Compatible H1 Controller and Medium Attachment Unit (MAU)
    • 31.25 kbit/s Communication Based on Manchester Coded Bus Powered (MBP)
    • Integrated Manchester Encoder and Decoder
    • Compatible with PROFIBUS PA
  • Low Quiescent Current: 180 uA Max at Typical Industrial Operating Temperature Range (-40°C to 85°C)
  • Integrated 1.5-V Reference
  • Flexible Clocking Options
    • Internal Oscillator
    • External Crystal Oscillator
    • External CMOS Clock
  • Digital Interface
    • DAC8742H: UART and SPI
  • Reliability: CRC Bit Error Checking, Watchdog Timer
  • Wide Operating Temperature: –55°C to 125°C
  • 5 mm x 5 mm TQFP Package
  • HART-Compliant Physical Layer Modem
    • 1200/2200 Hz HART FSK Sinusoids
    • Register Programmable Amplitude of TX Signals
      (DAC8741H / DAC8742H only)
    • Integrated RX Demodulator and Band-Pass Filter with Minimal External Components
  • FOUNDATION Fieldbus Compatible H1 Controller and Medium Attachment Unit (MAU)
    • 31.25 kbit/s Communication Based on Manchester Coded Bus Powered (MBP)
    • Integrated Manchester Encoder and Decoder
    • Compatible with PROFIBUS PA
  • Low Quiescent Current: 180 uA Max at Typical Industrial Operating Temperature Range (-40°C to 85°C)
  • Integrated 1.5-V Reference
  • Flexible Clocking Options
    • Internal Oscillator
    • External Crystal Oscillator
    • External CMOS Clock
  • Digital Interface
    • DAC8742H: UART and SPI
  • Reliability: CRC Bit Error Checking, Watchdog Timer
  • Wide Operating Temperature: –55°C to 125°C
  • 5 mm x 5 mm TQFP Package

The DAC8742H is a HART®, FOUNDATION Fieldbus™, and PROFIBUS PA compatible low power modem designed for industrial process control and industrial automation applications.

In HART mode, the DAC8742H integrates all of the required circuitry to operate as half-duplex HART physical layer modems, in either slave or master configurations with minimal external components for filtering. In FOUNDATION Fieldbus mode, the DAC8742H integrates all of the required circuitry to operate as half-duplex FOUNDATION Fieldbus compatible H1 Controllers and MAUs.

The HART, FOUNDATION Fieldbus, or PROFIBUS PA, data stream can be transferred from the microcontroller through either a UART interface or an integrated FIFO accessed by a SPI interface. The SPI interface includes an SDO pin for daisy-chain support, various interrupts, and other extended features.

The DAC8742H is a HART®, FOUNDATION Fieldbus™, and PROFIBUS PA compatible low power modem designed for industrial process control and industrial automation applications.

In HART mode, the DAC8742H integrates all of the required circuitry to operate as half-duplex HART physical layer modems, in either slave or master configurations with minimal external components for filtering. In FOUNDATION Fieldbus mode, the DAC8742H integrates all of the required circuitry to operate as half-duplex FOUNDATION Fieldbus compatible H1 Controllers and MAUs.

The HART, FOUNDATION Fieldbus, or PROFIBUS PA, data stream can be transferred from the microcontroller through either a UART interface or an integrated FIFO accessed by a SPI interface. The SPI interface includes an SDO pin for daisy-chain support, various interrupts, and other extended features.

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DAC8740H ACTIVO Módem compatible con HART®, FOUNDATION Fieldbus™ y PROFIBUS PA con interfaz UART UART-only variant

Documentación técnica

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Tipo Título Fecha
* Data sheet DAC8742H, HART and FOUNDATION Fieldbus / PROFIBUS PA Modem datasheet PDF | HTML 07 dic 2018
Application note A Basic Guide to the HART Protocol PDF | HTML 09 nov 2023
Application brief Designing Foundation Fieldbus and Profibus PA Devices with the DAC874xh Modem Fa 04 mar 2019
Application brief Implementing HART in PLC Analog Input Modules for Real-Time Communication 05 nov 2018
Application brief Implementing HART in 2-Wire Field Sensor-Transmitters 03 oct 2018
EVM User's guide DAC8742H Evaluation Module User's Guide (Rev. A) 14 nov 2017

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

DAC8742HEVM — Módulo de evaluación DAC8742H

The DAC8742H evaluation module (EVM) is an easy-to-use platform for evaluating the functionality and performance of the DAC8742H device. The DAC8740H, DAC8741H, and DAC8742H are HART®, FOUNDATION Fieldbus™, and PROFIBUS PA-compliant low-power modems designed for industrial (...)

Guía del usuario: PDF
Ejemplo de código o demostración

SBAC218 DAC8741H/DAC8742H Register Map Header File

Productos y hardware compatibles

Productos y hardware compatibles

Productos
DAC de precisión (≤ 10 MSPS)
DAC8741H Módem compatible con HART®, FOUNDATION Fieldbus™ y PROFIBUS PA con interfaz SPI DAC8742H Módem compatible con HART®, FOUNDATION Fieldbus™ y PROFIBUS PA con UART/SPI
Modelo de simulación

DAC874XH IBIS Model

SBAM332.ZIP (86 KB) - IBIS Model
Herramienta de cálculo

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The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
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PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Herramienta de simulación

TINA-TI — Programa de simulación analógica basado en SPICE

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
Guía del usuario: PDF
Paquete Pasadores Descargar
TQFP (PBS) 32 Ver opciones

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

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI. ​​​​​​​​​​​​​​

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