Overview
The DAC8830IDG4, produced by Texas Instruments, is a single, 16-bit, serial-input, voltage-output digital-to-analog converter (DAC). This device operates from a single power supply ranging from 2.7 V to 5.5 V, making it versatile for various applications. The DAC8830 is known for its ultra-low power consumption, typically 15 μW at 3 V, and high accuracy with a linearity error of 1 LSB. It features a fast settling time of 1.0 μs and a low noise level of 10 nV/√Hz, ensuring precise and stable analog output. The device also includes a high-speed SPI serial interface up to 50 MHz, facilitating efficient communication with DSPs or microprocessors.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Resolution | 16 | - | - | bits |
| Power-Supply Voltage | 2.7 | - | 5.5 | V |
| Power-Supply Current (VDD = 3 V) | 5 | - | 20 | μA |
| Power Consumption (VDD = 3 V) | 15 | - | 60 | μW |
| Linearity Error | ±0.5 | - | ±1 | LSB |
| Settling Time | 1.0 | - | - | μs |
| Output Noise | 10 | - | - | nV/√Hz |
| Temperature Range | -40 | - | +85 | °C |
| Serial Interface Clock Speed | - | - | 50 | MHz |
Key Features
- Ultra-low power consumption: Typically 15 μW at 3 V power supply.
- High accuracy: Linearity error of 1 LSB and low glitch, low noise.
- Fast settling time: 1.0 μs to 1/2 LSB of full-scale output.
- High-speed SPI serial interface: Up to 50 MHz clock speed.
- Schmitt-trigger inputs for direct optocoupler interface.
- Industry-standard pin configuration.
- Reset to zero-code on power-up.
- Unbuffered output reduces power consumption and error introduced by the buffer.
Applications
The DAC8830IDG4 is suitable for a variety of applications requiring precise and low-power digital-to-analog conversion. These include:
- Industrial control systems where low power and high accuracy are crucial.
- Medical devices that require stable and precise analog outputs.
- Aerospace and defense systems where reliability and low power consumption are essential.
- Automotive systems that need robust and accurate analog signals.
- Test and measurement equipment where precision and stability are key.
Q & A
- What is the resolution of the DAC8830IDG4?
The DAC8830IDG4 has a resolution of 16 bits.
- What is the power supply voltage range for the DAC8830IDG4?
The power supply voltage range is from 2.7 V to 5.5 V.
- How much power does the DAC8830IDG4 typically consume at 3 V?
It typically consumes 15 μW at 3 V.
- What is the settling time of the DAC8830IDG4?
The settling time is 1.0 μs to 1/2 LSB of full-scale output.
- What is the maximum clock speed of the SPI serial interface?
The maximum clock speed is up to 50 MHz.
- Does the DAC8830IDG4 have a power-on reset function?
Yes, it has a power-on reset function that resets the output to zero code.
- What is the output range of the DAC8830IDG4 in unipolar mode?
The output range is from 0 V to VREF.
- Is the output of the DAC8830IDG4 buffered or unbuffered?
The output is unbuffered, which reduces power consumption and error.
- What is the temperature range for specified performance?
The specified performance temperature range is from –40°C to +85°C.
- Can the DAC8830IDG4 be used in bipolar mode?
No, the DAC8830IDG4 is designed for unipolar output only. For bipolar operation, consider the DAC8831.
