DAC7728SPAGR

Digital To Analog Converters Overview

The DAC7728SPAGR is an octal, low-power, 16-bit digital-to-analog converter manufactured by Texas Instruments. It features a resistor-string architecture with buffered voltage outputs and supports serial input interfaces including SPI, Microwire, and QSPI. The device operates on analog supply voltages ranging from 4.5 V to 18 V and digital supplies from 2.7 V to 5.5 V. Key performance metrics include a sampling rate of 66 kS/s, a settling time of 15 µs, and power consumption of 107 mW. It offers high precision with a gain error of 0.01% FSR and integral nonlinearity of +/- 4 LSB. The component is housed in a 64-TQFP package and functions within a temperature range of -40°C to +105°C.

Digital To Analog Converters Feature Summary

• Integrates eight independent 16-bit DAC channels with on-chip offset and gain calibration capabilities.
• Provides buffered voltage outputs suitable for driving various loads without external amplification.
• Supports flexible serial communication through compatibility with standard DSP, Microwire, and SPI protocols.

Digital To Analog Converters Applications

• Industrial process control systems requiring multi-channel signal generation
• Data acquisition systems needing precise analog output references
• Test and measurement equipment utilizing high-resolution signal synthesis

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'R' indicates tape-and-reel packaging when ordering. Confirm that the SPAG variant meets necessary environmental or qualification standards if required for your application. Ensure the design accommodates the 64-TQFP footprint and thermal requirements for operation up to 105°C. Cross-reference the datasheet for pinout compatibility with existing board layouts.

Digital To Analog Converters Selection Notes

Select this component when an octal configuration with 16-bit resolution is required. Compare against the DAC8218SPAGR if 14-bit resolution and serial input are sufficient, or the DAC8728SPAG if parallel interface is preferred. Consider the DAC7718SPAGR for applications where 12-bit resolution reduces cost while maintaining similar package and interface characteristics.

Digital To Analog Converters Part Context

This part belongs to the DAC7728 family of octal DACs from Texas Instruments. It shares architectural similarities with the DAC8728 but differs in interface type, offering serial connectivity instead of parallel. The device complements other members like the DAC8218, which provides lower resolution but maintains the octal channel count.

Digital To Analog Converters Replacement Considerations

The DAC8728SPAG serves as a functional alternative if parallel interface compatibility exists. For lower resolution needs, the DAC7718SPAGR (12-bit) or DAC8218SPAGR (14-bit) may be considered. Verify pinout and software compatibility before substitution.