Overview
The DAC8831ID, produced by Texas Instruments, is a 16-bit, ultra-low power, voltage-output digital-to-analog converter (DAC). This device operates from a single power supply ranging from 2.7 V to 5.5 V and is designed for high accuracy and low power consumption. The DAC8831ID features a serial-input interface compatible with the SPI protocol, allowing for high-speed communication up to 50 MHz. It is particularly suited for applications requiring precise analog output with minimal power usage.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Resolution | 16 | bits | |||
| Power Supply Voltage | 2.7 | 5.5 | V | ||
| Operating Temperature Range | -40 | 85 | °C | ||
| Integral Nonlinearity (INL) | ±1 | LSB | |||
| 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 | ||
| Digital-to-Analog Glitch | 1 LSB change around major carry | 35 | nV-s | ||
| Power Supply Current | VDD = 3 V | 5 | 20 | μA | |
| Power Consumption | VDD = 3 V | 15 | 60 | μW |
Key Features
- 16-bit resolution with high accuracy (INL: 1 LSB)
- Single-supply operation from 2.7 V to 5.5 V
- Ultra-low power consumption: 15 μW at 3 V power supply
- Low noise: 10 nV/√Hz
- Fast settling time: 1.0 μs to 1/2 LSB of full-scale output
- High-speed SPI interface up to 50 MHz
- Reset to zero code after power-up
- Schmitt-trigger inputs for direct optocoupler interface
- Industry-standard pin configuration
- Bipolar output capability with external buffer (DAC8831 only)
Applications
- Portable equipment
- Automatic test equipment
- Industrial process control
- Data acquisition systems
- Optical networking
Q & A
- What is the resolution of the DAC8831ID?
The DAC8831ID has a 16-bit resolution.
- What is the operating voltage range of the DAC8831ID?
The DAC8831ID operates from a single power supply ranging from 2.7 V to 5.5 V.
- How much power does the DAC8831ID typically consume?
The DAC8831ID typically consumes 15 μW at a 3 V power supply.
- What is the settling time of the DAC8831ID?
The settling time of the DAC8831ID is 1.0 μs to 1/2 LSB of full-scale output.
- Does the DAC8831ID support bipolar output?
- What is the maximum clock speed of the SPI interface for the DAC8831ID?
The SPI interface of the DAC8831ID can operate up to 50 MHz.
- Does the DAC8831ID have a power-on reset feature?
- What are the typical applications of the DAC8831ID?
The DAC8831ID is typically used in portable equipment, automatic test equipment, industrial process control, data acquisition systems, and optical networking.
- What is the output impedance of the DAC8831ID?
The output impedance of the DAC8831ID is 6.25 kΩ.
- How does the DAC8831ID handle digital feedthrough?
The DAC8831ID has a digital feedthrough of 0.2 nV-s, which is the impulse injected into the analog output from the digital input.
