Texas Instruments DACx0502 Dual Voltage-Output DACs
Texas Instruments DACx0502 Dual Voltage-Output Digital-to-Analog Converters (DACs) are highly accurate, low-power devices with voltage output. The DAC80502 is 16-bit, the DAC70502 is 14-bit, and the DAC60502 is 12-bit.
The DACx0502 offers a linearity of < 1LSB. The high accuracy combined with the tiny package makes the DACx0502 an excellent choice for applications such as gain and offset calibration, current or voltage set point generation, and power supply control. These devices include a 2.5V, 5ppm/°C internal reference, giving full-scale output voltage ranges of 1.25V, 2.5V, or 5V. The Texas Instruments DACx0502 incorporates a power-on-reset circuit that ensures the DAC output powers up at zero scale or midscale based on the status of the RSTSEL pin and remains at that scale until a valid code is written to the device.
The DACx0502's digital interface can be configured to SPI or I2C mode using the SPI2C pin. In SPI mode, the DACx0502 uses a versatile 3-wire serial interface that operates at clock rates up to 50MHz. In I2C mode, the DACx0502 operates in standard (100kbps), fast (400kbps), and fast+ (1.0Mbps) modes.
Features
- 1LSB INL and DNL (max) 16-bit performance
- 4nVs low glitch energy
- 2.7V to 5.5V wide power supply
- 5V, 2.5V, or 1.25V buffered output range
- 1mA per channel at 5.5V low power
- Integrated 5ppm/°C (max), 2.5V precision reference
- Power-on-reset: zero scale or midscale
- Pin-selectable serial interface
- 3-wire, SPI compatible up to 50MHz
- 2-wire, I2C compatible
- 1.62V VIH with VDD = 5.5V
- -40°C to +125°C temperature range
- Tiny 10-pin WSON package
Applications
- Oscilloscope (DSO)
- Battery test
- Semiconductor test
- Data acquisition (DAQ)
- LCD test
- Small cell base station
- Analog output module
- Process analytics (pH, gas, concentration, force, and humidity)
- DC power supply, AC source, electronic load
Functional Block Diagram
Related Development Tool
Texas Instruments DAC80502-01EVM Evaluation Module
Configured to evaluate the operation of the DAC80502 devices.