DAC43701DSGR

Digital To Analog Converters Overview

The DAC43701DSGR is an 8-bit, voltage-output smart digital-to-analog converter manufactured by Texas Instruments. It features a PMBus-compatible I2C interface and user-programmable nonvolatile memory (NVM). The device operates with a supply voltage range of 1.71 V to 5.5 V and supports standard, fast, and fast mode plus communication speeds. Key electrical characteristics include 1 LSB INL and DNL accuracy, a typical settling time of 8 µs, and low power consumption of 0.2 mA at 1.8 V. It includes an internal reference, programmable waveform generation, and a general-purpose input for hardware-triggered functions.

Digital To Analog Converters Feature Summary

• Integrated nonvolatile memory allows saving and recalling all register settings without software control.
• Supports programmable waveform generation including square, triangular, and sawtooth waveforms.
• Features a general-purpose input that enables hardware-based function triggering and alarm tone generation.
• Provides flexible startup options with high impedance or 10K-GND output states.

Digital To Analog Converters Applications

• Oven control systems
• Ventilators and anesthesia delivery systems
• Infusion pumps and surgical equipment
• Rack server management
• Exit and emergency lighting

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix 'DSGR' corresponds to the 8-pin WSON package and tape-and-reel packaging configuration. Confirm the component meets RoHS3 compliance standards as specified in the manufacturer documentation. Ensure the selected variant matches the required resolution and interface compatibility for the target application design.

Digital To Analog Converters Selection Notes

Select the DAC43701 when an 8-bit resolution is sufficient for the application requirements. Consider this device for designs requiring integrated nonvolatile memory to retain calibration data. Evaluate the need for hardware-triggered functions via the GPI pin versus software-controlled updates. Verify that the operating temperature range of -40°C to +125°C aligns with the environmental conditions of the end system.

Digital To Analog Converters Part Context

The DAC43701 is part of the DACx3701 family, which also includes the 10-bit DAC53701. These devices are pin-compatible and share identical functional blocks, differing primarily in resolution. This family is designed for applications requiring low power consumption and small footprint solutions in compact electronic systems.

Digital To Analog Converters Replacement Considerations

The DAC53701 serves as a higher-resolution alternative within the same pin-compatible family. Designers requiring 10-bit precision may substitute the DAC43701 with the DAC53701 without modifying the PCB layout.

Digital To Analog Converters FAQ

What is the maximum I2C clock frequency supported?

The device supports Fast Mode Plus with a maximum SCL frequency of 1 MHz.

How is the internal reference capacitor connected?

A load capacitor must be connected between the CAP pin and the AGND pin to stabilize the internal LDO.

Can the device generate PWM signals?

Yes, the DAC can generate pulse-width modulation outputs using the triangular waveform and the FB pin.