DAC8234

ACTIVO

Convertidor digital a analógico de entrada serie de alta precisión, cuádruple, +/-16.5 V, 14 bits

Detalles del producto

Resolution (Bits) 14 Number of DAC channels 4 Interface type SPI Output type Buffered Voltage Output voltage range (V) -16.5 to 16.5 INL (max) (±LSB) 1 Settling time (µs) 6 Reference type Ext Architecture R-2R Rating Catalog Features On-chip Offset and Gain Calibration, SDO Sample/update rate (Msps) 0.125 Power consumption (typ) (mW) 260 Operating temperature range (°C) -40 to 105
Resolution (Bits) 14 Number of DAC channels 4 Interface type SPI Output type Buffered Voltage Output voltage range (V) -16.5 to 16.5 INL (max) (±LSB) 1 Settling time (µs) 6 Reference type Ext Architecture R-2R Rating Catalog Features On-chip Offset and Gain Calibration, SDO Sample/update rate (Msps) 0.125 Power consumption (typ) (mW) 260 Operating temperature range (°C) -40 to 105
VQFN (RHA) 40 36 mm² (6 mm × 6 mm) TQFP (PFB) 48 81 mm² (9 mm × 9 mm)
  • Bipolar Output: Up to ±16V
  • Unipolar Output: 0V to +20V
  • 14-Bit Monotonic
  • Relative Accuracy: 0.5 LSB Max
  • Low Zero and Gain Errors
    • Before User Calibration: 1 LSB
    • After User Calibration: 0.031 LSB Zero Error, 0.25 LSB Gain Error
  • Low Noise: 60nV/Hz
  • Settling Time: 6µs
  • Configurable Gain: x2/x4
  • Analog Output Monitor
  • Power-Down Mode
  • SPI: Up to 50MHz, 1.8V/3V/5V Logic
  • Daisy-Chain Mode
  • Operating Temperature: -40°C to +105°C
  • Packages: QFN-40 (6x6mm), TQFP-48 (7x7mm)
  • APPLICATIONS
    • Automatic Test Equipment
    • Instrumentation
    • Industrial Process Control
    • Communications

All trademarks are the property of their respective owners.

  • Bipolar Output: Up to ±16V
  • Unipolar Output: 0V to +20V
  • 14-Bit Monotonic
  • Relative Accuracy: 0.5 LSB Max
  • Low Zero and Gain Errors
    • Before User Calibration: 1 LSB
    • After User Calibration: 0.031 LSB Zero Error, 0.25 LSB Gain Error
  • Low Noise: 60nV/Hz
  • Settling Time: 6µs
  • Configurable Gain: x2/x4
  • Analog Output Monitor
  • Power-Down Mode
  • SPI: Up to 50MHz, 1.8V/3V/5V Logic
  • Daisy-Chain Mode
  • Operating Temperature: -40°C to +105°C
  • Packages: QFN-40 (6x6mm), TQFP-48 (7x7mm)
  • APPLICATIONS
    • Automatic Test Equipment
    • Instrumentation
    • Industrial Process Control
    • Communications

All trademarks are the property of their respective owners.

The DAC8234 is a high-accuracy, quad-channel, 14-bit digital-to-analog converter (DAC) that operates from supply voltages of ±5V to ±18V in bipolar output mode, and from ±5V to +24V/-12V in unipolar mode. With a 5V reference, the DAC8234 can be configured to output ±10V, ±5V, 0V to 20V, or 0V to 10V. The DAC8234 provides 14-bit monotonicity, excellent integral nonlinearity (INL) error of ±0.5 LSB, low glitch, and low noise over the operating temperature range of -40°C to +105°C. This device is trimmed in production for very low zero and gain errors. In addition, the DAC8234 implements a user-programmable system-level calibration function to achieve ±0.031 LSB zero error and ±0.25 LSB gain error.

The DAC8234 has integrated reference buffers and output buffers. It features a standard high-speed 1.8V, 3V, or 5V serial peripheral interface (SPI) that operates at clock rates of up to 50MHz to communicate with a DSP or microprocessor. The four DAC channels and the auxiliary registers are addressed with four address bits. The device features double-buffered interface logic for simultaneous updates of all DACs. An asynchronous load input (LDAC) transfers data from the input data register to the DAC latch, and the contents of the DAC latch set the output voltage. The asynchronous RST input sets the output of all four DACs to 0V. The VMON pin is an analog monitor output that multiplexes the individual DAC outputs or the AIN pin.

The DAC8234 is pin-compatible with the DAC8734 (16-bit) and the DAC7716 (12-bit).

The DAC8234 is a high-accuracy, quad-channel, 14-bit digital-to-analog converter (DAC) that operates from supply voltages of ±5V to ±18V in bipolar output mode, and from ±5V to +24V/-12V in unipolar mode. With a 5V reference, the DAC8234 can be configured to output ±10V, ±5V, 0V to 20V, or 0V to 10V. The DAC8234 provides 14-bit monotonicity, excellent integral nonlinearity (INL) error of ±0.5 LSB, low glitch, and low noise over the operating temperature range of -40°C to +105°C. This device is trimmed in production for very low zero and gain errors. In addition, the DAC8234 implements a user-programmable system-level calibration function to achieve ±0.031 LSB zero error and ±0.25 LSB gain error.

The DAC8234 has integrated reference buffers and output buffers. It features a standard high-speed 1.8V, 3V, or 5V serial peripheral interface (SPI) that operates at clock rates of up to 50MHz to communicate with a DSP or microprocessor. The four DAC channels and the auxiliary registers are addressed with four address bits. The device features double-buffered interface logic for simultaneous updates of all DACs. An asynchronous load input (LDAC) transfers data from the input data register to the DAC latch, and the contents of the DAC latch set the output voltage. The asynchronous RST input sets the output of all four DACs to 0V. The VMON pin is an analog monitor output that multiplexes the individual DAC outputs or the AIN pin.

The DAC8234 is pin-compatible with the DAC8734 (16-bit) and the DAC7716 (12-bit).

Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Pin por pin con la misma funcionalidad que el dispositivo comparado
DAC8734 ACTIVO Convertidor digital a analógico de salida de tensión +/-16.5 V, cuádruple, 16 bits, alta precisión 16-bit device

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 3
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos Quad, 14-Bit, High-Accuracy, ±16V Output, Serial Input D/A Converter datasheet (Rev. A) 1/09/2009
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

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.

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

DAC8234 IBIS Model

SBAM084.ZIP (84 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 (RHA) 40 Ultra Librarian
TQFP (PFB) 48 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.

Si tiene alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

Videos