Overview
The DAC8830IDTG4, produced by Texas Instruments, is a 16-bit, single-channel, ultra-low power, voltage output digital-to-analog converter (DAC). This component operates from a single 2.7 V to 5.5 V power supply, making it versatile for various applications. The DAC8830 is known for its excellent linearity, low glitch, low noise, and fast settling time, which are crucial for high-fidelity analog output in both audio and industrial uses.
Key Specifications
| Parameter | Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Resolution | - | 16 | - | - | bits |
| Linearity error | - | ±0.5 | ±1 | ±4 | LSB |
| Differential linearity error | - | ±0.5 | ±1 | ±5 | LSB |
| Gain error | - | ±1 | - | ±7 | LSB |
| Gain drift | - | ±0.1 | - | ±0.25 | ppm/°C |
| Zero code error | - | ±1 | - | ±2 | LSB |
| Zero code drift | - | ±0.05 | - | - | ppm/°C |
| Voltage output | - | 0 | - | +VREF | V |
| 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 |
| Power-supply voltage | - | 2.7 | - | 5.5 | V |
| Power-supply current | VDD = 3 V | 5 | - | 20 | μA |
| Temperature range | - | -40 | - | +85 | °C |
Key Features
- Ultra-Low Power Consumption: Operates from a single 2.7 V to 5.5 V power supply, making it energy-efficient.
- High Resolution: 16-bit resolution for precise analog output.
- Fast Settling Time: Settles to 1/2 LSB of full-scale output in 1 μs.
- Low Noise and Glitch: Minimal digital-to-analog glitch and low noise ensure high-fidelity output.
- High-Speed SPI Interface: Supports clock speeds up to 50 MHz for fast communication with DSPs or microprocessors.
- Unipolar Output: The DAC8830 provides an unbuffered output from 0 V to +VREF.
- Bipolar Output Capability (DAC8831): The DAC8831 can provide bipolar output (±VREF) when connected to an external buffer.
Applications
- Audio Systems: Ideal for applications requiring high-fidelity analog output, such as audio equipment and sound systems.
- Industrial Control Systems: Suitable for precise measurement and control in industrial automation and process control systems.
- Medical Devices: Can be used in medical equipment where precise analog output is critical.
- Consumer Electronics: Applicable in various consumer devices that require accurate digital-to-analog conversion.
Q & A
- What is the resolution of the DAC8830?
The DAC8830 has a 16-bit resolution.
- What is the operating voltage range of the DAC8830?
The DAC8830 operates from a single 2.7 V to 5.5 V power supply.
- What is the settling time of the DAC8830?
The settling time is 1 μs to 1/2 LSB of full-scale output.
- Does the DAC8830 support bipolar output?
No, the DAC8830 provides unipolar output. However, the DAC8831 can provide bipolar output with an external buffer.
- What is the temperature range for the DAC8830?
The specified performance temperature range is from -40°C to +85°C.
- What is the output impedance of the DAC8830?
The output impedance is 6.25 kΩ.
- How fast is the SPI interface of the DAC8830?
The SPI interface supports clock speeds up to 50 MHz.
- Is the DAC8830 suitable for low-power applications?
Yes, it is designed for ultra-low power consumption.
- What are the key applications of the DAC8830?
Key applications include audio systems, industrial control systems, medical devices, and consumer electronics.
- How does the DAC8830 ensure high-fidelity output?
The DAC8830 ensures high-fidelity output through its low noise, low glitch, and fast settling time characteristics.
