DAC7731EC

Digital To Analog Converters Overview

The DAC7731EC is a single-channel, 16-bit digital-to-analog converter manufactured by Texas Instruments. It features an internal +10V reference and utilizes an R-2R resistor ladder structure. The device operates with analog supply voltages ranging from -15.75V to -4.75V and +15V, alongside a 5V digital supply. Key performance metrics include a sampling rate of 172 kS/s, a settling time of 3 µs, and a power consumption of 100 mW. Linearity specifications are defined by a differential nonlinearity (DNL) of ±1 LSB and integral nonlinearity (INL) of ±3 LSB. It communicates via a 3-wire SPI interface and is housed in an SSOP-24 package.

Digital To Analog Converters Feature Summary

• Integrates a precision internal +10V voltage reference to reduce external component count.
• Provides buffered voltage output capability for direct drive applications.
• Supports serial communication through a standard 3-wire SPI interface.
• Includes a reset function to initialize the output to mid-scale.

Digital To Analog Converters Applications

• Industrial process control systems requiring precise analog signal generation.
• Data acquisition systems utilizing high-resolution digital inputs.
• Test and measurement equipment needing stable voltage references.

Digital To Analog Converters Procurement Notes

Verify the specific suffix against official datasheets to confirm packaging type, as EC designations often indicate tube packaging while other suffixes may denote reel quantities. Ensure compatibility with the target operating temperature range of -40°C to +85°C. Confirm that the SSOP-24 footprint matches the PCB layout requirements 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 source. Compare DNL and INL specifications against application tolerance levels, noting that this variant offers tighter linearity than the standard DAC7731E. Evaluate the 3-wire SPI interface compatibility with the host microcontroller's available pins and clock speeds.

Digital To Analog Converters Part Context

This part belongs to the DAC7731 series of 16-bit digital-to-analog converters. It shares core architectural features with variants like the DAC7731E but differs in specific linearity performance metrics and packaging options. The series is designed for applications demanding moderate speed and high accuracy within a compact surface-mount form factor.

Digital To Analog Converters Replacement Considerations

The DAC7731E serves as a functional alternative within the same family, though it exhibits higher DNL (+/- 4 LSB) and INL (+/- 6 LSB) values. Verify pinout compatibility and ensure the slightly relaxed linearity specifications meet the system requirements before substituting.