DAC7728SRTQR

Digital To Analog Converters Overview

The DAC7728SRTQR is an octal, low-power digital-to-analog converter featuring 12-bit resolution and a parallel input interface. It provides buffered voltage outputs capable of bipolar ±15V operation with a 5V reference. The device utilizes a resistor-string architecture within a 56-pin QFN package. Key electrical specifications include a sampling rate of 66 kS/s, a settling time of 15 µs, and differential nonlinearity of ±1 LSB. It operates on analog supply voltages from 4.5 V to 18 V and digital supplies from 2.7 V to 5.5 V, supporting temperatures from -40°C to +105°C.

Digital To Analog Converters Feature Summary

• Octal configuration providing eight independent 12-bit channels for multi-channel signal generation.
• High-voltage output capability delivering bipolar ±15V signals directly from a standard 5V reference.
• Integrated on-chip offset and gain calibration mechanisms to maintain accuracy without external trimming.
• Low-power design optimized for energy-efficient applications while maintaining high-speed performance.

Digital To Analog Converters Applications

• Industrial process control systems requiring multiple isolated analog outputs.
• Test and measurement equipment needing precise multi-channel signal generation.
• Automotive electronics utilizing high-voltage analog signal interfaces.
• Data acquisition systems requiring parallel input compatibility.

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'R' indicates tape-and-reel packaging when ordering. Confirm that the required output voltage range aligns with the ±15V specification derived from the 5V reference. Ensure the parallel interface timing requirements match the host system's capabilities. Check humidity sensitivity handling instructions due to the exposed pad QFN package type. Validate that the operating temperature range meets the environmental conditions of the target application.

Digital To Analog Converters Selection Notes

Select this component when eight simultaneous analog outputs are required with high voltage swing capabilities. The parallel interface is suitable for systems where pin count is not a constraint but speed is prioritized over serial complexity. Consider the 12-bit resolution as sufficient for general industrial control rather than precision metrology. Evaluate power consumption against thermal constraints in densely packed PCB layouts. Compare against higher-resolution alternatives if sub-LSB accuracy is strictly necessary.

Digital To Analog Converters Part Context

This part belongs to the DAC7728 family of octal digital-to-analog converters from Texas Instruments. It shares architectural similarities with other members like the DAC8728 but differs in resolution and specific output characteristics. The series is designed for robust industrial environments, offering reliability through integrated calibration features. It complements TI's portfolio of high-voltage data converters, bridging the gap between low-voltage logic and high-voltage analog loads.

Digital To Analog Converters Replacement Considerations

The DAC8728SRTQT serves as a higher-resolution alternative within the same product family, offering 16-bit resolution instead of 12-bit. Both devices share similar packaging and interface types, facilitating potential board-level upgrades. Verify pinout compatibility before substitution to ensure direct interchangeability. Review datasheet differences regarding settling time and linearity specifications to confirm performance adequacy for the specific application requirements.