Overview
The DAC60508MRTER is a part of the DACx0508 family of digital-to-analog converters (DACs) produced by Texas Instruments. This device is an octal, 12-bit, SPI voltage output DAC with an integrated 2.5 V precision internal reference. It is designed for low power consumption and high linearity, making it suitable for a variety of applications. The DAC60508MRTER operates from a single 2.7 V to 5.5 V supply and is specified monotonic, ensuring high accuracy and reliability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12 Bits | |
| Integral Nonlinearity (INL) | ±1 LSB | |
| Differential Nonlinearity (DNL) | ±1 LSB | |
| Total Unadjusted Error (TUE) | ±0.1% of FSR (Gain = 1 and 2), ±0.2% of FSR (Gain = ½) | |
| Offset Error | ±1.5 mV | mV |
| Zero-Code Error | 0.5 to 1.5 mV | mV |
| Full-Scale Error | ±0.1% of FSR | |
| Gain Error | ±0.1% of FSR | |
| Power Supply Voltage | 2.7 V to 5.5 V | V |
| Operating Temperature Range | –40°C to 125°C | °C |
| Current Consumption per Channel | 0.6 mA at 5.5 V | mA |
| Package Types | 3 mm × 3 mm, 16-Pin WQFN; 2.4 mm x 2.4 mm, 16-Pin DSBGA |
Key Features
- Integrated 2.5 V precision internal reference with low drift (5 ppm/°C typical)
- User-selectable gain configuration: 1, 2, or ½, providing full-scale output voltages of 1.25 V, 2.5 V, or 5 V respectively
- High drive capability: 20 mA with 0.5 V from supply rails
- Flexible output configuration: reset to zero scale or midscale, clear output function (DACx0508C)
- 50 MHz SPI compatible serial interface with daisy chain operation and CRC error check
- Low power consumption: 0.6 mA/channel at 5.5 V, with per-channel power-down feature reducing current to 15 µA
- Small package options: 3 mm × 3 mm WQFN and 2.4 mm x 2.4 mm DSBGA
Applications
- Optical Networking
- Wireless Infrastructure
- Industrial Automation
- Data Acquisition Systems
Q & A
- What is the resolution of the DAC60508MRTER?
The DAC60508MRTER has a resolution of 12 bits.
- What is the operating voltage range of the DAC60508MRTER?
The device operates from a single 2.7 V to 5.5 V supply.
- What are the available gain configurations for the DAC60508MRTER?
The device offers user-selectable gain configurations of 1, 2, or ½.
- What is the maximum current consumption per channel at 5.5 V?
The maximum current consumption per channel is 0.6 mA at 5.5 V.
- What are the package options available for the DAC60508MRTER?
The device is available in 3 mm × 3 mm WQFN and 2.4 mm x 2.4 mm DSBGA packages.
- What is the temperature range over which the DAC60508MRTER is specified to operate?
The device is specified to operate over a temperature range of –40°C to 125°C.
- Does the DAC60508MRTER have a power-down feature?
Yes, the device has a per-channel power-down feature that reduces the current consumption to 15 µA.
- What is the maximum clock rate for the SPI interface of the DAC60508MRTER?
The SPI interface operates at clock rates up to 50 MHz.
- Does the DAC60508MRTER support daisy chain operation?
Yes, the device supports daisy chain operation through its SPI interface.
- What is the purpose of the internal reference in the DAC60508MRTER?
The internal reference eliminates the need for an external precision reference in most applications, providing a stable 2.5 V reference voltage.
