Overview
The DAC8831IRGYT is a 16-bit, ultra-low power, voltage-output digital-to-analog converter (DAC) manufactured by Texas Instruments. This device operates from a single 2.7 V to 5.5 V power supply and is designed for high accuracy and low power consumption. The DAC8831IRGYT is available in a 14-pin VQFN (RGY) package and features a high-speed SPI serial interface, making it suitable for a variety of applications requiring precise analog output.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Resolution | 16 | bits | |||
| Linearity Error | ±0.5 | ±2 | LSB | ||
| Differential Linearity Error | ±0.5 | ±1 | LSB | ||
| Gain Error | TA = –40°C to +85°C | ±7 | LSB | ||
| Gain Drift | TA = +25°C | ±0.1 | ±0.25 | ppm/°C | |
| Zero Code Error | TA = –40°C to +85°C | ±2 | LSB | ||
| Zero Code Drift | ±0.05 | ppm/°C | |||
| Output Impedance | 6.25 | kΩ | |||
| Settling Time | To 1/2 LSB of FS, CL = 10 pF | 1 | μs | ||
| Slew Rate | CL = 10 pF | 25 | V/μs | ||
| Output Noise | TA = +25°C | 18 | nV/√Hz | ||
| Power-Supply Rejection | VDD varies ±10% | ±1 | LSB |
Key Features
- 16-bit resolution
- 2.7 V to 5.5 V single-supply operation
- Very low power: 15 µW for 3 V power
- High accuracy: INL of 1 LSB
- Low noise: 10 nV/Hz
- Fast settling: 1.0 µS to 1/2 LSB of full-scale output
- Fast SPI interface, up to 50 MHz
- Reset to zero-code
- Schmitt-trigger inputs for direct optocoupler interface
- Industry-standard pin configuration
Applications
- Portable equipment
- Automatic test equipment
- Industrial process control
- Data acquisition systems
- Optical networking
Q & A
- What is the resolution of the DAC8831IRGYT?
The DAC8831IRGYT has a 16-bit resolution. - What is the operating voltage range of the DAC8831IRGYT?
The DAC8831IRGYT operates from a single 2.7 V to 5.5 V power supply. - What is the typical power consumption of the DAC8831IRGYT at 3 V power?
The typical power consumption is 15 µW. - What is the settling time of the DAC8831IRGYT?
The settling time is 1.0 µS to 1/2 LSB of full-scale output. - Does the DAC8831IRGYT support bipolar output?
Yes, the DAC8831IRGYT provides bipolar output (±VREF) when working with an external buffer. - What is the maximum clock speed of the SPI interface?
The SPI interface supports up to 50 MHz. - What are the package options for the DAC8831IRGYT?
The DAC8831IRGYT is available in an SO-14 package and a 14-pin VQFN (RGY) package. - What is the operating temperature range of the DAC8831IRGYT?
The operating temperature range is –40°C to +85°C. - Does the DAC8831IRGYT have Schmitt-trigger inputs?
Yes, it has Schmitt-trigger inputs for direct optocoupler interface. - What are some common applications of the DAC8831IRGYT?
Common applications include portable equipment, automatic test equipment, industrial process control, data acquisition systems, and optical networking.
