Overview
The DAC8830ICDTG4, produced by Texas Instruments, is a single, 16-bit, serial-input, voltage-output digital-to-analog converter (DAC). This device operates from a single supply voltage ranging from 2.7 V to 5.5 V and is known for its ultra-low power consumption, typically around 5 μA. The DAC8830 is designed for applications requiring high precision and low power, making it suitable for various industrial, medical, and portable equipment uses.
The device features a standard 3-wire serial interface compatible with SPI, QSPI, Microwire, and TI DSP interfaces, allowing for data transfer speeds up to 50 M-bits/sec. It includes a power-on reset function that resets the DAC to zero code, ensuring a known power-up state.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Resolution | - | 16 | - | - | bits |
| Linearity error | - | ±0.5 | ±1 | ±2 | LSB |
| Differential linearity error | - | ±0.5 | ±1 | ±5 | LSB |
| Gain error | - | ±1 | - | ±7 | LSB |
| Zero code error | - | ±0.5 | - | ±2 | 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 |
| 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: Typically 5 μA, making it ideal for battery-powered and power-sensitive applications.
- High Resolution: 16-bit resolution providing precise analog output.
- Single Supply Operation: Operates from a single supply voltage ranging from 2.7 V to 5.5 V.
- Serial Interface: Standard 3-wire serial interface compatible with SPI, QSPI, Microwire, and TI DSP interfaces.
- Unipolar Output: The DAC8830 provides a unipolar output swing ranging from 0 V to VREF.
- Low Output Impedance: 6.25 kΩ output impedance, suitable for driving unbuffered loads of 60 kΩ.
- Power-On Reset: Resets the DAC to zero code, ensuring a known power-up state.
Applications
- Industrial Process Control: Used in control systems requiring precise analog outputs.
- Portable Equipment: Ideal for battery-powered devices due to its ultra-low power consumption.
- Medical Devices: Suitable for medical equipment requiring high precision and low power.
- Automatic Test Equipment: Used in test and measurement applications for its high resolution and accuracy.
- Consumer Electronics: Can be used in various consumer electronics requiring 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 supply voltage ranging from 2.7 V to 5.5 V.
- What is the typical power consumption of the DAC8830?
The typical power consumption is around 5 μA.
- What type of serial interface does the DAC8830 use?
The DAC8830 uses a standard 3-wire serial interface compatible with SPI, QSPI, Microwire, and TI DSP interfaces.
- What is the output impedance of the DAC8830?
The output impedance is 6.25 kΩ.
- Does the DAC8830 have a power-on reset function?
Yes, the DAC8830 has a power-on reset function that resets the DAC to zero code.
- What is the settling time of the DAC8830?
The settling time is 1 μs to 1/2 LSB of full scale with a load capacitance of 10 pF.
- Can the DAC8830 drive unbuffered loads?
Yes, the DAC8830 can drive unbuffered loads of 60 kΩ.
- What is the temperature range for the DAC8830?
The specified performance temperature range is from –40°C to +85°C.
- What are some common applications of the DAC8830?
Common applications include industrial process control, portable equipment, medical devices, and automatic test equipment.
