Texas Instruments DACx0508 Octal 16/14/12-Bit Voltage-Output DACs
Texas Instruments DACx0508 Voltage-Output Digital-to-Analog Converters (DAC) deliver a 2.5V, 5ppm/°C internal reference. This feature dismisses the need for an external precision reference. The DACx0508 provides 8-Channels with a True 16, 14, or 12-Bit resolution. Full-scale output voltages of 1.25V (gain=½), 2.5V (gain=1), or 5V (gain=2) are provided by user-selectable gain configuration. Additionally, the DACx0508 offers high linearity of ±1LSB INL, is specified monotonic, and operates from a single 2.7V to 5.5V supply.
The 4-wire interface supplies communication to the DACx0508 and operates at clock rates up to 50MHz. A serial interface is enabled via the VIO pin with operation from 1.7V to 5.5V. The versatile interface allows the device to operate with various industry-standard microprocessors and microcontrollers. The device integrates a power-in-reset circuit that powers up and maintains the DAC output. This output maintains at either zero scale or midscale until a valid code is written to the device.
The Texas Instruments DACx0508 is ideal for battery operated-equipment, consuming a low current of 0.6mA/channel at 5.5V. A per-channel power-down option reduces the DACx0508 current consumption to 15µA. A wide operating temperature range of –40°C to 125°C is characterized for the DACs, offering availability in small packages.
Features
- Performance
- INL: ±1LSB maximum at 16-bit resolution
- TUE: ±0.14% of FSR maximum
- Integrated 2.5V precision internal reference
- Initial accuracy: ±5mV maximum
- Low drift: 5ppm/°C typical
- High drive capability: 20mA with 0.5V from supply rails
- Low power: 0.6mA/channel at 5.5V
- Flexible output configuration
- User-selectable gain of 2, 1 or ½
- Reset to zero scale or midscale
- Wide operating range
- 2.7V to 5.5V power supply
- –40˚C to 125˚C temperature range
- 50MHz SPI-compatible serial interface
- 4-wire mode, 1.7V to 5.5V operation
- Daisy chain operation
- CRC error check
- Small packages
- 3mm × 3mm, 16-pin WQFN
- 2.4mm x 2.4mm, 16-pin DSBGA
Applications
- Optical networking
- Wireless infrastructure
- Industrial automation
- Data acquisition systems
Block Diagram
Related Development Tool
Texas Instruments Module d'évaluation DAC80508-04EVM
Une plateforme pour évaluer les performances des dispositifs DAC80508.
| Numéro de pièce | Fiche technique | Résolution | DNL - Non-linéarité différentielle | Nombre de convertisseurs | Courant d'alimentation de fonctionnement |
|---|---|---|---|---|---|
| DAC60508MRTER |  |
12 bit | +/- 0.5 LSB | ||
| DAC60508ZCRTET | |
12 bit | +/- 0.5 LSB | 8 Converter | 5 mA |
| DAC80508ZCYZFT | |
16 bit | +/- 0.5 LSB | 8 Converter | 5 mA |
| DAC60508MCRTET | |
12 bit | +/- 0.5 LSB | 8 Converter | 5 mA |
| DAC80508MYZFT | |
16 bit | +/- 0.5 LSB | 8 Converter | 5 mA |
| DAC60508ZRTER | |
||||
| DAC80508ZRTER | |
16 bit | 1 LSB | 8 Converter | 5 mA |
| DAC60508MRTET | |
12 bit | +/- 0.5 LSB | 8 Converter | 5 mA |
| DAC80508MRTET | |
16 bit | +/- 0.5 LSB | 8 Converter | 5 mA |
| DAC80508ZCRTET | |
16 bit | +/- 0.5 LSB | 8 Converter | 5 mA |