DAC7731E/1K

Digital To Analog Converters Overview

The DAC7731E/1K is a single-channel, 16-bit voltage-output digital-to-analog converter (DAC) manufactured by Texas Instruments. It utilizes an R-2R resistor ladder architecture and features an integrated +10V reference. The device communicates via a 3-wire serial interface compatible with SPI. It operates within a temperature range of -40°C to +85°C and is housed in a 24-pin SSOP package. Key electrical specifications include a settling time of 5µs, a maximum gain error of 0.15% FSR, and power consumption of 100 mW. The unit weight is 1.700 g.

Digital To Analog Converters Feature Summary

• Integrates a precision +10V internal reference source to simplify external circuitry requirements.
• Supports reset-to-mid-scale functionality for predictable initial output states upon power-up or command.
• Includes a Serial Data Output (SDO) pin to facilitate daisy-chaining multiple devices on the same bus.

Digital To Analog Converters Applications

• Industrial process control systems requiring precise analog signal generation.
• Data acquisition systems utilizing FPGA-based decoding for high-speed updates.
• Portable instrumentation powered by linear regulators where low noise is critical.

Digital To Analog Converters Procurement Notes

Verify the specific suffix '1K' against the manufacturer's official datasheet to confirm it denotes the reel packaging quantity of 1000 units rather than a functional variant. Ensure compatibility with standard SPI timing parameters if integrating into existing designs. Confirm RoHS compliance status through the latest product data sheet before finalizing procurement orders.

Digital To Analog Converters Selection Notes

Select this component when a single-channel, 16-bit resolution is required with an integrated reference to reduce board space. The 5µs settling time suits applications with moderate update rates. Verify that the 24-SSOP package fits the available PCB footprint and that the operating temperature range meets environmental constraints.

Digital To Analog Converters Part Context

This part belongs to the DAC7731 family of serial input DACs from Texas Instruments. It shares architectural similarities with the DAC7631 but offers higher performance metrics such as faster settling times and tighter gain error specifications. The family is designed for general-purpose analog output applications requiring reliable digital-to-analog conversion.

Digital To Analog Converters Replacement Considerations

The DAC7631 series serves as a related alternative within the same product family. Verify pinout compatibility and check if the slightly different settling time and INL/DNL specifications meet the application requirements before substituting.