Overview
The DAC8568IDPWR, produced by Texas Instruments, is a 16-bit, octal-channel, ultra-low glitch, voltage output digital-to-analog converter (DAC). This device is part of the DAC8568 series, which includes the DAC7568 and DAC8168, offering 12-bit and 14-bit resolutions respectively. The DAC8568 is designed for high precision and low power consumption, making it ideal for a variety of applications including portable instrumentation, closed-loop servo-control/process control, and data acquisition systems.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 Bits |
| Relative Accuracy | ±4 to ±12 LSB |
| Differential Nonlinearity | ±0.2 to ±1 LSB |
| Internal Reference Voltage | 2.5V (disabled by default) |
| Internal Reference Accuracy | 0.004% (typical) |
| Temperature Drift of Internal Reference | 2ppm/°C (typical), 5ppm/°C (maximum) |
| Power Supply Range | +2.7V to +5.5V |
| Power Consumption | Typically 1.25mA at 5V including internal reference current |
| Serial Interface Clock Rate | Up to 50MHz |
| Output Buffer Amplifier | Rail-to-Rail Operation |
| Temperature Range | –40°C to +125°C |
| Package | TSSOP-16 |
Key Features
- Ultra-low glitch energy of 0.1nV-s, ensuring minimal code-to-code transient voltages.
- Monotonic over the entire temperature range, providing excellent linearity.
- Low-power serial interface with Schmitt-triggered inputs, compatible with SPI, QSPI, Microwire, and DSP interfaces.
- On-chip output buffer amplifier with rail-to-rail operation.
- Power-on reset to zero scale or midscale until a valid code is written.
- Power-down feature reducing current consumption to typically 0.18µA at 5V.
- Internal 2.5V reference with 20mA sink/source capability.
Applications
- Portable instrumentation.
- Closed-loop servo-control and process control.
- Data acquisition systems.
- Programmable attenuation, digital gain, and offset adjustment.
- Programmable voltage and current sources.
Q & A
- What is the resolution of the DAC8568IDPWR?
The DAC8568IDPWR has a resolution of 16 bits. - What is the relative accuracy of the DAC8568IDPWR?
The relative accuracy is ±4 to ±12 LSB. - What is the internal reference voltage of the DAC8568IDPWR?
The internal reference voltage is 2.5V, which is disabled by default. - What is the temperature drift of the internal reference?
The temperature drift is 2ppm/°C (typical) and 5ppm/°C (maximum). - What is the power supply range for the DAC8568IDPWR?
The power supply range is +2.7V to +5.5V. - How much power does the DAC8568IDPWR consume?
The power consumption is typically 1.25mA at 5V, including the internal reference current. - What is the maximum clock rate of the serial interface?
The serial interface can operate at clock rates up to 50MHz. - What type of output buffer amplifier does the DAC8568IDPWR have?
The output buffer amplifier has rail-to-rail operation. - What is the operating temperature range of the DAC8568IDPWR?
The operating temperature range is –40°C to +125°C. - What package types are available for the DAC8568IDPWR?
The DAC8568IDPWR is available in TSSOP-16 packages.
