Overview
The DAC7568IAPWR is a 12-bit, octal-channel, ultra-low glitch, voltage output digital-to-analog converter (DAC) produced by Texas Instruments. This device is part of the DAC7568, DAC8168, and DAC8568 family, which offers high precision and versatility. The DAC7568 features a 2.5V internal reference with an initial accuracy of 0.004% and a temperature drift of 2ppm/°C, ensuring stable and reliable output voltage. It is designed for low-power operation, making it ideal for portable, battery-operated equipment in various industries such as telecommunications, industrial automation, and medical instrumentation.
Key Specifications
| Specification | Description |
|---|---|
| Resolution | 12-bit |
| Number of Channels | 8 channels |
| Internal Reference Voltage | 2.5V (disabled by default) |
| Internal Reference Accuracy | 0.004% initial accuracy |
| Temperature Drift | 2ppm/°C (typ), 5ppm/°C (max) |
| Relative Accuracy | 0.3 LSB INL |
| Glitch Energy | 0.1nV-s |
| Power Supply Range | +2.7V to +5.5V |
| Power Consumption | Typically 1.25mA at 5V including internal reference current |
| Power-Down Current | Typically 0.18μA at 5V |
| Operating Temperature Range | –40°C to +125°C |
| Package | TSSOP-14 |
| Serial Interface Clock Rate | Up to 50MHz |
Key Features
- Ultra-low glitch energy of 0.1nV-s, ensuring minimal code-to-code transient voltages.
- Internal 2.5V reference with high accuracy and low temperature drift.
- 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.
- Power-down feature reducing current consumption to less than 1μW.
- Wide power-supply range: +2.7V to +5.5V.
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 DAC7568IAPWR?
The DAC7568IAPWR has a resolution of 12 bits. - How many channels does the DAC7568IAPWR have?
The DAC7568IAPWR has 8 channels. - What is the internal reference voltage of the DAC7568IAPWR?
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 (typ) and 5ppm/°C (max). - What is the relative accuracy of the DAC7568IAPWR?
The relative accuracy is 0.3 LSB INL. - What is the glitch energy of the DAC7568IAPWR?
The glitch energy is 0.1nV-s. - What is the power supply range of the DAC7568IAPWR?
The power supply range is +2.7V to +5.5V. - How much power does the DAC7568IAPWR consume?
The power consumption is typically 1.25mA at 5V including the internal reference current. - What is the operating temperature range of the DAC7568IAPWR?
The operating temperature range is –40°C to +125°C. - What type of package does the DAC7568IAPWR come in?
The DAC7568IAPWR comes in a TSSOP-14 package.
