Overview
The DAC7568ICPWR is a 12-bit, octal-channel, voltage-output digital-to-analog converter (DAC) produced by Texas Instruments. This device is part of the DAC7568, DAC8168, and DAC8568 family, which are known for their low power consumption, high accuracy, and versatile serial interface. The DAC7568ICPWR features an internal 2.5V reference with high accuracy and low temperature drift, making it suitable for a variety of applications requiring precise analog output.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12-bit | |
| Number of Channels | 8 | |
| Relative Accuracy (INL) | ±0.3 LSB | |
| Glitch Energy | 0.1 nV-s | |
| Internal Reference Voltage | 2.5V | |
| Internal Reference Accuracy | 0.004% (typ) | |
| Internal Reference Temperature Drift | 2 ppm/°C (typ), 5 ppm/°C (max) | |
| Power Supply Range | +2.7V to +5.5V | |
| Power Consumption (normal mode, internal reference on) | 1.25 mA at 5V, 1.1 mA at 2.7V | |
| Power Consumption (power-down mode) | <0.18 μA at 5V | |
| Operating Temperature Range | –40°C to +125°C | |
| Serial Interface Clock Rate | Up to 50 MHz | |
| Package Type | TSSOP-14, TSSOP-16 |
Key Features
- Ultralow glitch energy and high linearity ensure minimal code-to-code transient voltages.
- Internal 2.5V reference with high accuracy and low temperature drift.
- Low power operation with power-on reset to zero scale or midscale.
- Wide power-supply range from +2.7V to +5.5V.
- Monotonic over the entire temperature range.
- 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-down feature reducing current consumption to less than 1 μW.
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 DAC7568ICPWR?
The DAC7568ICPWR has a resolution of 12 bits. - How many channels does the DAC7568ICPWR have?
The DAC7568ICPWR has 8 channels. - What is the internal reference voltage of the DAC7568ICPWR?
The internal reference voltage is 2.5V. - What is the typical power consumption of the DAC7568ICPWR in normal mode with the internal reference on?
The typical power consumption is 1.25 mA at 5V and 1.1 mA at 2.7V. - What is the operating temperature range of the DAC7568ICPWR?
The operating temperature range is –40°C to +125°C. - What is the maximum clock rate of the serial interface?
The serial interface can operate at clock rates up to 50 MHz. - What types of packages are available for the DAC7568ICPWR?
The DAC7568ICPWR is available in TSSOP-14 and TSSOP-16 packages. - Does the DAC7568ICPWR have a power-down feature?
Yes, the DAC7568ICPWR has a power-down feature that reduces current consumption to typically less than 1 μW. - Is the DAC7568ICPWR monotonic over its entire temperature range?
Yes, the DAC7568ICPWR is monotonic over its entire temperature range. - What are some common applications of the DAC7568ICPWR?
Common applications include portable instrumentation, closed-loop servo-control, data acquisition systems, and programmable voltage and current sources.
