Overview
The DAC8563SDGSR from Texas Instruments is a 16-bit, dual-channel, low-power, ultra-low glitch, buffered voltage-output digital-to-analog converter (DAC). This device is part of the DAC856x family, which includes a 2.5-V, 4-ppm/°C internal reference. It is designed for applications requiring high precision, low power consumption, and a small footprint, making it ideal for portable, battery-operated equipment.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16-bit |
| Number of Channels | 2 |
| Internal Reference | 2.5 V, 4 ppm/°C |
| Relative Accuracy | 4 LSB INL |
| Glitch Impulse | 0.1 nV-s |
| Output Voltage Range | 0 to 2.5 V or 0 to 5 V |
| Initial Accuracy | ±5 mV |
| Temperature Drift | 4 ppm/°C (typ), 10 ppm/°C (max) |
| Power Supply Range | 2.7 V to 5.5 V |
| Power Consumption | 4 mW (typ, 5-V AVDD, including internal reference current) |
| Serial Interface | 50 MHz SPI with Schmitt-triggered inputs |
| Output Buffer | Rail-to-rail operation |
| Packages | VSSOP-10 (DGS), WSON-10 (DSC) |
| Temperature Range | –40°C to 125°C |
Key Features
- Ultra-low glitch and monotonic operation, minimizing undesired code-to-code transient voltages.
- Bidirectional reference: input or 2.5-V output.
- Output disabled by default; power-on reset to zero scale or mid-scale.
- Low power consumption with a power-down feature reducing current to typically 550 nA at 5 V.
- Wide power-supply range: 2.7 V to 5.5 V.
- 50 MHz SPI interface with Schmitt-triggered inputs, compatible with standard SPI, QSPI, Microwire, and DSP interfaces.
- LDAC and CLR functions for synchronous data updates and clear operations.
- Output buffer with rail-to-rail operation.
- Small footprint packages: VSSOP-10 and WSON-10.
Applications
- Portable instrumentation.
- PLC analog output modules.
- Closed-loop servo control.
- Voltage controlled oscillator tuning.
- Data acquisition systems.
- Programmable gain and offset adjustment.
Q & A
- What is the resolution of the DAC8563SDGSR?
The DAC8563SDGSR has a resolution of 16 bits.
- How many channels does the DAC8563SDGSR have?
The DAC8563SDGSR is a dual-channel DAC.
- What is the internal reference voltage and its temperature drift?
The internal reference is 2.5 V with a temperature drift of 4 ppm/°C (typ) and 10 ppm/°C (max).
- What is the power consumption of the DAC8563SDGSR?
The typical power consumption is 4 mW at 5-V AVDD, including the internal reference current.
- What is the operating temperature range of the DAC8563SDGSR?
The operating temperature range is –40°C to 125°C.
- What types of packages are available for the DAC8563SDGSR?
The device is available in VSSOP-10 (DGS) and WSON-10 (DSC) packages.
- What is the serial interface speed of the DAC8563SDGSR?
The serial interface operates at clock rates up to 50 MHz.
- Does the DAC8563SDGSR have a power-down feature?
- What are the key applications of the DAC8563SDGSR?
The device is suitable for portable instrumentation, PLC analog output modules, closed-loop servo control, voltage controlled oscillator tuning, and data acquisition systems.
- Is the DAC8563SDGSR compatible with other DACxx63 devices?
