DAC7718

ACTIVO

Convertidor digital a analógico de entrada en serie, salida de +/-16.5 V, octal, baja potencia, 12 b

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Funcionalidad similar a la del dispositivo comparado
DAC61408 ACTIVO DAC de salida de alta tensión y 8 canales de 12 bits con referencia interna integrada Smaller 6mm x 6mm package with integrated reference

Detalles del producto

Resolution (Bits) 12 Number of DAC channels 8 Interface type SPI Output type Buffered Voltage Output voltage range (V) -16.5 to 16.5 INL (max) (±LSB) 1 Settling time (µs) 15 Reference type Ext Architecture String Rating Catalog Features On-chip Offset and Gain Calibration, SDO Sample/update rate (Msps) 0.066 Power consumption (typ) (mW) 115 Operating temperature range (°C) -40 to 85
Resolution (Bits) 12 Number of DAC channels 8 Interface type SPI Output type Buffered Voltage Output voltage range (V) -16.5 to 16.5 INL (max) (±LSB) 1 Settling time (µs) 15 Reference type Ext Architecture String Rating Catalog Features On-chip Offset and Gain Calibration, SDO Sample/update rate (Msps) 0.066 Power consumption (typ) (mW) 115 Operating temperature range (°C) -40 to 85
VQFN (RGZ) 48 49 mm² (7 mm × 7 mm) TQFP (PAG) 64 144 mm² (12 mm × 12 mm)
  • Bipolar Output: ±2V to ±16.5V
  • Unipolar Output: 0V to +33V
  • 12-Bit Resolution
  • Low Power: 14.4mW/Ch (Bipolar Supply)
  • Relative Accuracy: 1 LSB Max
  • Low Zero/Full-Scale Error: ±1 LSB Max
  • Flexible System Calibration
  • Low Glitch: 4nV-s
  • Settling Time: 15µs
  • Channel Monitor Output
  • Programmable Gain: x4/x6
  • Programmable Offset
  • SPI: Up to 50MHz, 1.8V/3V/5V Logic
  • Schmitt Trigger Inputs
  • Daisy-Chain with Sleep Mode Enhancement
  • Packages: QFN-48 (7x7mm), TQFP-64 (10x10mm)
  • APPLICATIONS
    • Automatic Test Equipment
    • PLC and Industrial Process Control
    • Communications
  • Bipolar Output: ±2V to ±16.5V
  • Unipolar Output: 0V to +33V
  • 12-Bit Resolution
  • Low Power: 14.4mW/Ch (Bipolar Supply)
  • Relative Accuracy: 1 LSB Max
  • Low Zero/Full-Scale Error: ±1 LSB Max
  • Flexible System Calibration
  • Low Glitch: 4nV-s
  • Settling Time: 15µs
  • Channel Monitor Output
  • Programmable Gain: x4/x6
  • Programmable Offset
  • SPI: Up to 50MHz, 1.8V/3V/5V Logic
  • Schmitt Trigger Inputs
  • Daisy-Chain with Sleep Mode Enhancement
  • Packages: QFN-48 (7x7mm), TQFP-64 (10x10mm)
  • APPLICATIONS
    • Automatic Test Equipment
    • PLC and Industrial Process Control
    • Communications

The DAC7718 is a low-power, octal, 12-bit digital-to-analog converter (DAC). With a 5V reference, the output can either be a bipolar ±15V voltage when operating from dual ±15.5V (or higher) power supplies, or a unipolar 0V to +30V voltage when operating from a +30.5V (or higher) power supply. With a 5.5V reference, the output can either be a bipolar ±16.5V voltage when operating from dual ±17V (or higher) power supplies, or a unipolar 0V to +33V voltage when operating from a +33.5V (or higher) power supply. This DAC provides low-power operation, good linearity, and low glitch over the specified temperature range of –40°C to +105°C. This device is trimmed in manufacturing and has very low zero-code and gain error. In addition, system level calibration can be performed over the entire signal chain. The output range can be offset by using the DAC offset register.

The DAC7718 features a standard, high-speed serial peripheral interface (SPI) that operates at up to 50MHz and is 1.8V, 3V, and 5V logic compatible, to communicate with a DSP or microprocessor. The input data of the device are double-buffered. An asynchronous load input (LDAC) transfers data from the DAC data register to the DAC latch. The asynchronous CLR input sets the output of all eight DACs to AGND. The VMON pin is a monitor output that connects to the individual analog outputs, the offset DAC, the reference buffer outputs, and two external inputs through a multiplexer (mux).

The DAC7718 is pin-to-pin and function-compatible with the DAC8718 (16-bit) and the DAC8218 (14-bit).

The DAC7718 is a low-power, octal, 12-bit digital-to-analog converter (DAC). With a 5V reference, the output can either be a bipolar ±15V voltage when operating from dual ±15.5V (or higher) power supplies, or a unipolar 0V to +30V voltage when operating from a +30.5V (or higher) power supply. With a 5.5V reference, the output can either be a bipolar ±16.5V voltage when operating from dual ±17V (or higher) power supplies, or a unipolar 0V to +33V voltage when operating from a +33.5V (or higher) power supply. This DAC provides low-power operation, good linearity, and low glitch over the specified temperature range of –40°C to +105°C. This device is trimmed in manufacturing and has very low zero-code and gain error. In addition, system level calibration can be performed over the entire signal chain. The output range can be offset by using the DAC offset register.

The DAC7718 features a standard, high-speed serial peripheral interface (SPI) that operates at up to 50MHz and is 1.8V, 3V, and 5V logic compatible, to communicate with a DSP or microprocessor. The input data of the device are double-buffered. An asynchronous load input (LDAC) transfers data from the DAC data register to the DAC latch. The asynchronous CLR input sets the output of all eight DACs to AGND. The VMON pin is a monitor output that connects to the individual analog outputs, the offset DAC, the reference buffer outputs, and two external inputs through a multiplexer (mux).

The DAC7718 is pin-to-pin and function-compatible with the DAC8718 (16-bit) and the DAC8218 (14-bit).

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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 Octal, 12-Bit, Low-Power, High-Voltage Output, Serial Input D/A Converter datasheet (Rev. A) 15/12/2009
Analog Design Journal Isolated RS-485 transceivers support DMX512 stage lighting & special-effects app 16/09/2011
Analog Design Journal 3Q 2011 Issue Analog Applications Journal 16/09/2011
Analog Design Journal The IBIS model, Part 2: Determining the total quality of an IBIS model 14/03/2011

Diseño y desarrollo

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Placa de evaluación

DAC7718EVM — Módulo de evaluación DAC7718

El DACxx18EVM incorpora el convertidor digital a analógico de DAC7718, DAC8218 o DAC8718. El EVM proporciona una forma rápida y sencilla de evaluar la funcionalidad y el rendimiento de este convertidor digital a analógico (DAC) de entrada en serie de alta resolución. El DACxx18EVM está diseñado (...)

Guía del usuario: PDF
Productos y hardware compatibles
En inventario
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No disponible
Placa de evaluación

DAC8718EVM — Módulo de evaluación DAC8718

El DACxx18EVM incorpora el convertidor digital a analógico de DAC7718, DAC8218 o DAC8718. El EVM proporciona una forma rápida y sencilla de evaluar la funcionalidad y el rendimiento de este convertidor digital a analógico (DAC) de entrada en serie de alta resolución. El DACxx18EVM está diseñado (...)

Guía del usuario: PDF
Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Soporte de software

DXP — DXP EVM GUI

El DAC Exerciser Program (DXP) es una herramienta de software de TI para evaluar los DAC sin la necesidad de generadores de patrones costosos o escribir software complejo. Cuando se utiliza con un EVM DAC de TI y una placa madre modular, ofrece una generación simple y fácil de señales digitales, lo (...)

Productos y hardware compatibles
Modelo de simulación

DAC7718 IBIS Model

SBAM088.ZIP (82 KB) - Modelo IBIS
Productos y hardware compatibles
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.
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RGZ) 48 Ultra Librarian
TQFP (PAG) 64 Ultra Librarian

Pedidos y calidad

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Soporte y capacitación

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