DAC61402RHBR

Digital To Analog Converters Overview

The DAC61402 is a dual-channel, 12-bit digital-to-analog converter featuring high-voltage output buffers and an integrated precision reference. It operates with supply voltages up to ±41.5 V on the analog rails while accepting digital logic from 1.7 V to 5.5 V. The device provides full-scale output ranges of ±20 V, ±10 V, ±5 V, or unipolar options up to 40 V. Key electrical specifications include a maximum integral nonlinearity (INL) of ±1 LSB, a total unadjusted error (TUE) of ±0.05% FSR, and a short-circuit current limit of 40 mA. Communication is handled via a 50-MHz SPI-compatible serial interface.

Digital To Analog Converters Feature Summary

• Integrated output buffers capable of sourcing or sinking up to 15 mA with per-channel sense pins for remote voltage sensing.
• Built-in 2.5-V precision reference with low drift characteristics to eliminate external reference requirements.
• Comprehensive reliability features including CRC error checking, thermal alarm, and short-circuit protection.
• Flexible power-on-reset circuitry that safely grounds outputs during initialization.

Digital To Analog Converters Applications

• Servo drive control modules
• Analog output signal generation
• Laboratory and field instrumentation
• Data acquisition systems
• Semiconductor test equipment

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix RHBR corresponds to the 32-pin QFN package configuration required for your design. Confirm that the internal reference selection matches your system accuracy needs without requiring external calibration. Ensure the PCB layout adheres to the thermal pad connection guidelines specified in the datasheet to maintain optimal junction temperature performance under load.

Digital To Analog Converters Selection Notes

Select this component when high-voltage bipolar or unipolar outputs are required directly from the DAC without additional amplification stages. The 12-bit resolution offers a balance between cost and precision for applications not demanding 16-bit linearity. Consider the integrated reference and buffer capabilities to reduce bill-of-materials count and board space compared to discrete solutions.

Digital To Analog Converters Part Context

This part belongs to the DACx1402 family, which also includes the 16-bit DAC81402 variant. Both devices share identical pinouts and functional blocks, differing primarily in resolution. The DAC61402 serves as the lower-resolution option within this series, maintaining the same high-voltage output architecture and reliability features as its 16-bit counterpart.

Digital To Analog Converters Replacement Considerations

The DAC81402 is a pin-compatible alternative offering 16-bit resolution. Other Texas Instruments DACs may require level shifting or external references if they lack integrated high-voltage buffers. Verify interface compatibility and output swing requirements before substituting with generic dual-channel DACs.