DAC8771

ACTIVO

DAC de salida de corriente y tensión de 16 bits, monocanal con gestión de potencia adaptable

Detalles del producto

Resolution (Bits) 16 Number of DAC channels 1 Interface type SPI Output type Buffered Current, Buffered Voltage Output voltage range (V) -10 to 10, -12 to 12, -5 to 5, 0 to 5, 0 to 6 INL (max) (±LSB) 12 Settling time (µs) 10 Reference type Ext, Int Architecture String Rating Catalog Features Integrated Buck Boost Converter, Low Power Sample/update rate (Msps) 0.033 Power consumption (typ) (mW) 530 Operating temperature range (°C) -40 to 125 Product type Special-function DAC
Resolution (Bits) 16 Number of DAC channels 1 Interface type SPI Output type Buffered Current, Buffered Voltage Output voltage range (V) -10 to 10, -12 to 12, -5 to 5, 0 to 5, 0 to 6 INL (max) (±LSB) 12 Settling time (µs) 10 Reference type Ext, Int Architecture String Rating Catalog Features Integrated Buck Boost Converter, Low Power Sample/update rate (Msps) 0.033 Power consumption (typ) (mW) 530 Operating temperature range (°C) -40 to 125 Product type Special-function DAC
VQFN (RGZ) 48 49 mm² (7 mm × 7 mm)
  • Output Current:
    • 0 mA - 24 mA; 3.5 mA - 23.5 mA;
      0 mA - 20 mA; 4 mA - 20 mA; ±24 mA
  • Output Voltage (with/without 20% over-range):
    • 0 V - 5 V; 0 V - 10 V; ±5 V; ±10 V
    • 0 V - 6 V; 0 V - 12 V; ±6 V; ±12 V
  • Adaptive Power Management
  • Single Wide Power Supply Pin
    • 12 V - 36 V with Buck-Boost
    • 12 V - 33 V without Buck-Boost
  • ±0.1% FSR Total Unadjusted Error (TUE)
  • DNL: ±1 LSB Max
  • Internal 5-V Reference (10 ppm/°C max)
  • Internal 5-V Digital Power Supply Output
  • CRC/Frame Error Check, Watchdog Timer
  • Thermal Alarm, Open/Short circuit
  • Safe actions on alarm condition
  • Auto Learn Feature
  • Wide Temperature Range: –40°C to +125°C
  • Output Current:
    • 0 mA - 24 mA; 3.5 mA - 23.5 mA;
      0 mA - 20 mA; 4 mA - 20 mA; ±24 mA
  • Output Voltage (with/without 20% over-range):
    • 0 V - 5 V; 0 V - 10 V; ±5 V; ±10 V
    • 0 V - 6 V; 0 V - 12 V; ±6 V; ±12 V
  • Adaptive Power Management
  • Single Wide Power Supply Pin
    • 12 V - 36 V with Buck-Boost
    • 12 V - 33 V without Buck-Boost
  • ±0.1% FSR Total Unadjusted Error (TUE)
  • DNL: ±1 LSB Max
  • Internal 5-V Reference (10 ppm/°C max)
  • Internal 5-V Digital Power Supply Output
  • CRC/Frame Error Check, Watchdog Timer
  • Thermal Alarm, Open/Short circuit
  • Safe actions on alarm condition
  • Auto Learn Feature
  • Wide Temperature Range: –40°C to +125°C

The DAC8771 is a single channel, precision, fully integrated 16-bit digital to analog converter (DAC) with adaptive power management, and is designed to meet the requirements of industrial control applications. The adaptive power management circuit, when enabled, minimizes the power dissipation of the chip. When programmed as a current output, the supply voltage on the current output driver is regulated between 4 V and 32 V based on continuous feedback of voltage on the current output pin via a buck/boost converter. When programmed as a voltage output, this circuit generates a programmable supply voltage for the voltage output stage (±15 V). DAC8771 contains an LDO to generate the digital supply (5 V) from a single power supply pin, particularly helpful in isolated applications.

DAC8771 is also implemented with a HART Signal Interface to superimpose an external HART signal on the current output. The slew rate of the current output DAC is register programmable. The devices can operate with a single external power supply of +12 V to +36 V using the integrated buck/boost converter or with external power supplies when the buck/boost converter is disabled.

The DAC8771 is a single channel, precision, fully integrated 16-bit digital to analog converter (DAC) with adaptive power management, and is designed to meet the requirements of industrial control applications. The adaptive power management circuit, when enabled, minimizes the power dissipation of the chip. When programmed as a current output, the supply voltage on the current output driver is regulated between 4 V and 32 V based on continuous feedback of voltage on the current output pin via a buck/boost converter. When programmed as a voltage output, this circuit generates a programmable supply voltage for the voltage output stage (±15 V). DAC8771 contains an LDO to generate the digital supply (5 V) from a single power supply pin, particularly helpful in isolated applications.

DAC8771 is also implemented with a HART Signal Interface to superimpose an external HART signal on the current output. The slew rate of the current output DAC is register programmable. The devices can operate with a single external power supply of +12 V to +36 V using the integrated buck/boost converter or with external power supplies when the buck/boost converter is disabled.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos DAC8771 Single-Channel,16-Bit Voltage and Current Output Digital-to-Analog Converter with Adaptive Power Management datasheet PDF | HTML 20/02/2018
Analog Design Journal How to cut PLC output power dissipation in half using an adaptive supply PDF | HTML 10/04/2026
Nota sobre la aplicación A Simple, Java-Based CRC Calculator PDF | HTML 4/03/2026
Circuit design Circuit Replacing HART® Modem Device Competitors With the DAC8740H PDF | HTML 29/01/2026
Circuit design Precision, ±15V Power Supply Circuit from a +5V Source for High-Voltage Data Converters PDF | HTML 4/12/2025
Circuit design Output Overvoltage Protection Circuit for Voltage DACs With an External Feedback Pin PDF | HTML 29/07/2025
Nota sobre la aplicación A Basic Guide to the HART Protocol PDF | HTML 9/11/2023
Application brief Thermal Management to Increase Density in PLC AO Modules 12/06/2018

Diseño y desarrollo

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Placa de evaluación

DAC8771EVM — Módulo de evaluación DAC8771

El módulo de evaluación (EVM) DAC8771 es una plataforma fácil de usar para evaluar la funcionalidad y el rendimiento del dispositivo DAC8771. El DAC8771 es un convertidor digital-analógico (DAC) de 16 bits, un solo canal y salida de corriente o tensión programables con gestión de energía (...)

Guía del usuario: PDF
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Modelo de simulación

DAC8771 IBIS Model

SLAM302.ZIP (50 KB) - Modelo IBIS
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Herramienta de diseño

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
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Diseño de referencia

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Este diseño de referencia de módulo de salida analógica de un único canal con aislamiento de alimentación proporciona salidas de corriente y tensión mediante el convertidor digital a analógico (DAC) DAC8771 altamente integrado. La alta integración del DAC8771, junto con el convertidor flyback (...)

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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
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Pedidos y calidad

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Soporte y capacitación

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