Overview
The DAC8830ICDG4, produced by Texas Instruments, is a single, 16-bit, serial-input, voltage-output digital-to-analog converter (DAC). This ultra-low power DAC operates from a single supply voltage ranging from 2.7 V to 5.5 V and is designed for applications requiring high precision and low power consumption. The device features a segmented DAC architecture, which includes two matched DAC sections, ensuring excellent linearity and fast settling times. It is particularly suited for use in portable equipment, industrial process control, automatic test equipment, and data acquisition systems.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Resolution | 16 | bits | |||
| Linearity error | ±0.5 | ±4 | LSB | ||
| Differential linearity error | ±0.5 | ±1 | LSB | ||
| Gain error | TA = +25°C | ±1 | ±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 | ||
| Power-supply voltage | 2.7 | 5.5 | V | ||
| Power-supply current | VDD = 3 V | 5 | 20 | μA | |
| Temperature range | –40 | +85 | °C |
Key Features
- 16-bit resolution with excellent linearity and low glitch
- Single-supply operation from 2.7 V to 5.5 V
- Ultra-low power consumption, typically 5 μA
- Fast settling time of 1 μs to 1/2 LSB of full scale
- Slew rate of 25 V/μs
- Low output impedance of 6.25 kΩ
- Unipolar output (0 V to +VREF) for DAC8830, and both unipolar and bipolar output (±VREF) for DAC8831
- Segmented DAC architecture for high accuracy
- SPI serial interface for data input
- Power-on reset function to ensure a known power-up state
- Kelvin sense connections for the reference and analog ground on DAC8831
Applications
- Portable equipment
- Industrial process control
- Automatic test equipment
- Data acquisition systems
- Optical networking
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 supply voltage ranging from 2.7 V to 5.5 V.
- What is the typical power consumption of the DAC8830?
The typical power consumption of the DAC8830 is 5 μA.
- What is the settling time of the DAC8830?
The settling time of the DAC8830 is 1 μs to 1/2 LSB of full scale.
- Does the DAC8830 support bipolar output?
No, the DAC8830 only supports unipolar output. However, the DAC8831 supports both unipolar and bipolar output.
- What is the output impedance of the DAC8830?
The output impedance of the DAC8830 is 6.25 kΩ.
- What interface does the DAC8830 use for data input?
The DAC8830 uses an SPI serial interface for data input.
- Does the DAC8830 have a power-on reset function?
Yes, the DAC8830 has a power-on reset function to ensure a known power-up state.
- What are some common applications of the DAC8830?
The DAC8830 is commonly used in portable equipment, industrial process control, automatic test equipment, and data acquisition systems.
- What is the temperature range for the specified performance of the DAC8830?
The specified performance temperature range for the DAC8830 is from –40°C to +85°C.
