Texas Instruments
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DAC9881SRGET
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DAC9881SRGET

Product Overview

Category: Digital-to-Analog Converter (DAC)

Use: The DAC9881SRGET is a high-performance digital-to-analog converter designed for various applications that require precise and accurate analog output signals. It is commonly used in audio systems, instrumentation, industrial control systems, and communication equipment.

Characteristics: - High resolution: The DAC9881SRGET offers a resolution of up to 16 bits, ensuring fine-grained control over the analog output. - Low distortion: It provides low total harmonic distortion (THD) and noise, resulting in high-quality and clean analog signals. - Fast settling time: The DAC9881SRGET has a fast settling time, enabling quick response to changes in the digital input. - Wide voltage range: It supports a wide voltage range, allowing flexibility in different voltage level requirements. - Low power consumption: The DAC9881SRGET is designed to operate with low power consumption, making it suitable for battery-powered devices. - Small package size: It comes in a compact package, saving board space and facilitating integration into various systems.

Package and Quantity: The DAC9881SRGET is available in a small outline integrated circuit (SOIC) package. Each package contains one unit of the DAC9881SRGET.

Specifications

  • Resolution: Up to 16 bits
  • Voltage Reference Range: 0V to VREF
  • Output Voltage Range: 0V to VREF
  • Supply Voltage: 2.7V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Interface: Serial Peripheral Interface (SPI)
  • Power Consumption: <10mW
  • Total Harmonic Distortion (THD): <0.01%

Pin Configuration

The DAC9881SRGET features a 20-pin SOIC package with the following pin configuration:

  1. VREF
  2. AGND
  3. AVDD
  4. DVDD
  5. CS
  6. SCLK
  7. SDIN
  8. LDAC
  9. CLR
  10. GND
  11. OUTA
  12. OUTB
  13. OUTC
  14. OUTD
  15. OUTE
  16. OUTF
  17. OUTG
  18. OUTH
  19. NC
  20. VCC

Functional Features

  • High-resolution digital-to-analog conversion
  • Low distortion and noise for high-quality analog output
  • Fast settling time for quick response to input changes
  • Flexible voltage reference and output voltage range
  • Low power consumption for energy-efficient operation
  • Easy integration with SPI interface for seamless communication

Advantages and Disadvantages

Advantages: - High resolution allows precise control over analog output. - Low distortion and noise result in high-quality audio signals. - Fast settling time enables quick response to dynamic input changes. - Wide voltage range provides flexibility in various applications. - Low power consumption makes it suitable for battery-powered devices.

Disadvantages: - Limited number of output channels (8 channels). - Requires an external voltage reference.

Working Principles

The DAC9881SRGET operates by converting digital input data into corresponding analog output voltages. It utilizes a high-resolution digital-to-analog conversion technique to accurately reproduce the desired analog signal. The device receives digital input data through the SPI interface, processes it internally, and generates the corresponding analog output voltages on the output channels.

Detailed Application Field Plans

The DAC9881SRGET finds applications in various fields, including:

  1. Audio Systems: It is used in audio equipment such as digital audio players, amplifiers, and mixers to convert digital audio signals into analog signals for playback or amplification.

  2. Instrumentation: The DAC9881SRGET is employed in precision measurement instruments, data acquisition systems, and control devices to generate accurate analog output signals for sensor calibration, signal conditioning, and control purposes.

  3. Industrial Control Systems: It is utilized in industrial automation systems, process control equipment, and motor control applications to provide precise analog control signals for controlling actuators, valves, and motors.

  4. Communication Equipment: The DAC9881SRGET is used in communication devices such as wireless transceivers, base stations, and network analyzers to generate analog signals for modulation, demodulation, and testing purposes.

Detailed and Complete Alternative Models

  1. DAC9881IRGET: Similar to the DAC9881SRGET, but available in an industrial temperature range (-40°C to +105°C) for harsh environment applications.
  2. DAC9881ARGET: Similar to the DAC9881SRGET, but available in an automotive-grade package for automotive applications.
  3. DAC9881DRGET: Similar to the DAC9881SRGET, but with a higher resolution of 18 bits for applications requiring even finer analog control.

These

Orodhesha maswali na majibu 10 ya kawaida yanayohusiana na utumiaji wa DAC9881SRGET katika suluhu za kiufundi

Sure! Here are 10 common questions and answers related to the application of DAC9881SRGET in technical solutions:

Q1: What is DAC9881SRGET? A1: DAC9881SRGET is a digital-to-analog converter (DAC) integrated circuit that converts digital signals into analog voltage or current outputs.

Q2: What is the operating voltage range of DAC9881SRGET? A2: The operating voltage range of DAC9881SRGET is typically between 2.7V and 5.5V.

Q3: What is the resolution of DAC9881SRGET? A3: DAC9881SRGET has a resolution of 16 bits, allowing for high precision analog output.

Q4: What is the maximum output current of DAC9881SRGET? A4: The maximum output current of DAC9881SRGET is typically around 20 mA.

Q5: Can DAC9881SRGET be used for both voltage and current output applications? A5: Yes, DAC9881SRGET can be configured for both voltage and current output applications by using appropriate external components.

Q6: Does DAC9881SRGET support serial communication interfaces? A6: Yes, DAC9881SRGET supports various serial communication interfaces such as SPI (Serial Peripheral Interface) and I2C (Inter-Integrated Circuit).

Q7: What is the settling time of DAC9881SRGET? A7: The settling time of DAC9881SRGET refers to the time it takes for the output voltage to stabilize after a change in the input digital code. It typically ranges from a few microseconds to tens of microseconds.

Q8: Can multiple DAC9881SRGET devices be cascaded together? A8: Yes, multiple DAC9881SRGET devices can be cascaded together to achieve higher channel count or parallel operation.

Q9: What is the power consumption of DAC9881SRGET? A9: The power consumption of DAC9881SRGET depends on various factors such as the operating voltage, output load, and communication interface speed. It is typically in the range of a few milliwatts to a few watts.

Q10: Are there any evaluation boards or reference designs available for DAC9881SRGET? A10: Yes, Texas Instruments provides evaluation boards and reference designs for DAC9881SRGET, which can help users quickly prototype and evaluate their technical solutions.

Please note that these answers are general and may vary depending on the specific implementation and datasheet of DAC9881SRGET.