Overview
The DAC8831IRGYR is a single, 16-bit, serial-input, voltage-output digital-to-analog converter (DAC) produced by Texas Instruments. It operates from a single power supply ranging from 2.7 V to 5.5 V and is designed for low power consumption, typically 15 µW at 3 V. This DAC features high accuracy, low noise, and fast settling times, making it suitable for a variety of applications. The DAC8831IRGYR is available in a QFN-14 package and includes industry-standard pin configurations and a high-speed SPI serial interface for communication with DSPs or microprocessors.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Resolution | 16 | bits | |||
| Supply Voltage | 2.7 | 5.5 | V | ||
| Integral Nonlinearity (INL) | TA = +25°C | ±0.5 | ±1 | LSB | |
| Differential Nonlinearity (DNL) | TA = +25°C | ±0.5 | ±1 | LSB | |
| Gain Error | TA = –40°C to +85°C | ±1 | ±7 | LSB | |
| Gain Drift | ±0.1 | ppm/°C | |||
| Settling Time | 1.0 | µS | |||
| Noise | 10 | nV/Hz | |||
| Operating Temperature Range | -40 | 85 | °C |
Key Features
- 16-bit resolution with high accuracy (INL: 1 LSB)
- Single-supply operation from 2.7 V to 5.5 V
- Very low power consumption: 15 µW at 3 V
- Low noise: 10 nV/Hz
- Fast settling time: 1.0 µS to 1/2 LSB of full-scale output
- Fast SPI serial interface up to 50 MHz
- Reset to zero-code after power-up
- Schmitt-trigger inputs for direct optocoupler interface
- Industry-standard pin configuration
- Kelvin sense connections for external reference and analog ground input on the DAC8831
Applications
- Portable equipment
- Automatic test equipment
- Industrial process control
- Data acquisition systems
- Optical networking
Q & A
- What is the resolution of the DAC8831IRGYR?
The DAC8831IRGYR has a 16-bit resolution.
- What is the operating voltage range of the DAC8831IRGYR?
The DAC8831IRGYR operates from a single power supply ranging from 2.7 V to 5.5 V.
- How much power does the DAC8831IRGYR typically consume at 3 V?
The DAC8831IRGYR typically consumes 15 µW at 3 V.
- What is the settling time of the DAC8831IRGYR?
The settling time of the DAC8831IRGYR is 1.0 µS to 1/2 LSB of full-scale output.
- What is the maximum clock speed of the SPI interface for the DAC8831IRGYR?
The SPI interface of the DAC8831IRGYR can operate up to 50 MHz.
- Does the DAC8831IRGYR have a reset function?
Yes, the DAC8831IRGYR resets to zero-code after power-up.
- What type of noise performance does the DAC8831IRGYR have?
The DAC8831IRGYR has a low noise performance of 10 nV/Hz.
- What are the available packages for the DAC8831IRGYR?
The DAC8831IRGYR is available in an SO-14 package and a QFN-14 package.
- What are some of the applications for the DAC8831IRGYR?
The DAC8831IRGYR is used in portable equipment, automatic test equipment, industrial process control, data acquisition systems, and optical networking.
- Does the DAC8831IRGYR support bipolar output?
Yes, the DAC8831IRGYR can provide bipolar output (±VREF) when working with an external buffer.
