DAC7750

ACTIVO

DAC de salida de corriente programable, monocanal, 12 bits para aplicaciones de bucle de corriente d

Detalles del producto

Resolution (Bits) 12 Number of DAC channels 1 Interface type SPI Output type Buffered Current INL (max) (±LSB) 2 Settling time (µs) 10 Reference type Ext, Int Architecture String Rating Catalog Features 4-20mA loop transmitter Sample/update rate (Msps) 0.04 Power consumption (typ) (mW) 135 Operating temperature range (°C) -40 to 125 Product type Special-function DAC
Resolution (Bits) 12 Number of DAC channels 1 Interface type SPI Output type Buffered Current INL (max) (±LSB) 2 Settling time (µs) 10 Reference type Ext, Int Architecture String Rating Catalog Features 4-20mA loop transmitter Sample/update rate (Msps) 0.04 Power consumption (typ) (mW) 135 Operating temperature range (°C) -40 to 125 Product type Special-function DAC
VQFN (RHA) 40 36 mm² (6 mm × 6 mm) HTSSOP (PWP) 24 49.92 mm² (7.8 mm × 6.4 mm)
  • Current output options:
    • 0 mA to 24 mA
    • 4 mA to 20 mA
    • 0 mA to 20 mA
  • ±0.1% FSR typical total unadjusted error (TUE)
  • DNL: ±1 LSB maximum
  • Maximum loop compliance voltage: AVDD – 2 V
  • Internal 5-V reference: 10 ppm/°C (maximum)
  • Internal 4.6-V power-supply output
  • CRC frame error check
  • Watchdog timer
  • Thermal alarm
  • Open-circuit alarm
  • Pins to monitor output current
  • On-chip fault alarm
  • User-calibration for offset and gain
  • Wide temperature range: –40°C to +125°C
  • Packages: 6-mm × 6-mm 40-pin VQFN and 24-pin HTSSOP
  • Current output options:
    • 0 mA to 24 mA
    • 4 mA to 20 mA
    • 0 mA to 20 mA
  • ±0.1% FSR typical total unadjusted error (TUE)
  • DNL: ±1 LSB maximum
  • Maximum loop compliance voltage: AVDD – 2 V
  • Internal 5-V reference: 10 ppm/°C (maximum)
  • Internal 4.6-V power-supply output
  • CRC frame error check
  • Watchdog timer
  • Thermal alarm
  • Open-circuit alarm
  • Pins to monitor output current
  • On-chip fault alarm
  • User-calibration for offset and gain
  • Wide temperature range: –40°C to +125°C
  • Packages: 6-mm × 6-mm 40-pin VQFN and 24-pin HTSSOP

The DAC7750 and DAC8750 (DACx750) are low-cost, precision, fully-integrated, 12-bit and 16-bit digital-to-analog converters (DACs) designed to meet the requirements of industrial process-control applications. These devices can be programmed as a current output with ranges of 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA. The DACx750 include reliability features such as CRC error checking on the SPI frame, a watchdog timer, an open circuit, compliance voltage, and thermal alarm. In addition, the output current can be monitored by accessing an internal precision resistor.

These devices include a power-on-reset function designed to power up the device in a known state (IOUT is disabled and in a Hi-Z state). The CLR pin sets the current output to the low end of the range if the output is enabled. Program the zero and gain registers to digitally calibrate the device in the end system. The output slew rate is also programmable by register. These devices can superimpose an external HART signal on the current output, and operate with a 10-V to 36-V supply.

The DAC7750 and DAC8750 (DACx750) are low-cost, precision, fully-integrated, 12-bit and 16-bit digital-to-analog converters (DACs) designed to meet the requirements of industrial process-control applications. These devices can be programmed as a current output with ranges of 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA. The DACx750 include reliability features such as CRC error checking on the SPI frame, a watchdog timer, an open circuit, compliance voltage, and thermal alarm. In addition, the output current can be monitored by accessing an internal precision resistor.

These devices include a power-on-reset function designed to power up the device in a known state (IOUT is disabled and in a Hi-Z state). The CLR pin sets the current output to the low end of the range if the output is enabled. Program the zero and gain registers to digitally calibrate the device in the end system. The output slew rate is also programmable by register. These devices can superimpose an external HART signal on the current output, and operate with a 10-V to 36-V supply.

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Documentación técnica

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Ver todo 5
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos DACx750 Single-Channel, 12-Bit and 16-Bit Programmable Current Output Digital-to-Analog Converters for 4-mA to 20-mA Current-Loop Applications datasheet (Rev. D) PDF | HTML 7/12/2021
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
Nota sobre la aplicación A Basic Guide to the HART Protocol PDF | HTML 9/11/2023
Nota sobre la aplicación Implementing HART™ Communication With the DAC8760 Family 16/01/2014

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

DAC7750EVM — DAC programable de 12 bits con módulo de evaluación de salida de corriente de 4 mA a 20 mA DAC7750

The DAC7750 evaluation module (EVM) provides an easy to use platform for evaluation of the performance and operating characteristics of the DAC7750 (12-bit, Voltage & Current Outputs). The EVM is a complete evaluation kit that includes a USB-based motherboard called the SM-USB-DIG, USB cable, (...)

Guía del usuario: PDF
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En inventario
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No disponible
Soporte de software

SBOC432 — DAC7750EVM and DAC8750EVM Software

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Modelo de simulación

DAC8750-60 IBIS Model

SBAM177.ZIP (50 KB) - Modelo IBIS
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Herramienta de diseño

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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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Diseño de referencia

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This TI CerTIfied Reference Design implements a isolated single-channel industrial voltage and current output module using the DAC8760 and ISO7641.  The circuit features a digitally controlled voltage or current output that produces the standard outputs of 0-20mA, 0-24mA, 4-20mA, 0-5V, +/-5V, (...)

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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RHA) 40 Ultra Librarian
HTSSOP (PWP) 24 Ultra Librarian

Pedidos y calidad

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

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.

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