Overview
The DAC7578SPWR from Texas Instruments is a 12-bit, octal-channel, ultra-low glitch, voltage output digital-to-analog converter (DAC). This device is part of the DAC5578, DAC6578, and DAC7578 family, which are known for their low power consumption and high linearity. The DAC7578 is designed to minimize undesired code-to-code transient voltages (glitch) and features a versatile 2-wire serial interface that is I2C-compatible. It is ideal for applications requiring multiple DAC channels with low power operation, making it suitable for portable, battery-operated equipment.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Relative Accuracy | 1 LSB INL |
| Glitch Energy | 0.15 nV-s |
| Power-On Reset | Zero Scale or Midscale |
| Power Consumption (per channel) | 0.13 mA at 5V |
| Power Supply Range | +2.7V to +5.5V |
| Serial Interface | 2-Wire I2C-compatible, up to 3.4 MHz |
| Temperature Range | –40°C to +125°C |
| Package Options | TSSOP-16, QFN-24 |
Key Features
- Ultra-low glitch energy to minimize code-to-code transient voltages.
- Low power operation: 0.13 mA per channel at 5V.
- Wide power-supply range: +2.7V to +5.5V.
- 2-Wire serial interface (I2C-compatible) with clock rates up to 3.4 MHz.
- Power-on reset to zero scale or midscale.
- Power-down feature reducing current consumption to typically 0.42 μA at 5V.
- Small footprint in TSSOP-16 and QFN-24 packages.
Applications
- Portable Instrumentation
- Closed-Loop Servo Control
- Process Control
- Data Acquisition Systems
Q & A
- What is the resolution of the DAC7578?
The DAC7578 has a resolution of 12 bits. - What is the relative accuracy of the DAC7578?
The relative accuracy of the DAC7578 is 1 LSB INL. - What is the glitch energy of the DAC7578?
The glitch energy of the DAC7578 is 0.15 nV-s. - How does the DAC7578 behave during power-on reset?
The DAC7578 resets to zero scale or midscale during power-on. - What is the power consumption per channel of the DAC7578 at 5V?
The power consumption per channel is 0.13 mA at 5V. - What is the operating temperature range of the DAC7578?
The operating temperature range is –40°C to +125°C. - What types of packages are available for the DAC7578?
The DAC7578 is available in TSSOP-16 and QFN-24 packages. - Is the serial interface of the DAC7578 compatible with I2C?
Yes, the serial interface is I2C-compatible and operates at clock rates up to 3.4 MHz. - What is the power-down current consumption of the DAC7578?
The power-down current consumption is typically 0.42 μA at 5V. - What are some typical applications of the DAC7578?
Typical applications include portable instrumentation, closed-loop servo control, process control, and data acquisition systems.
