DAC121S101 MDP

Digital To Analog Converters Overview

The DAC121S101 MDP is a radiation-hardened, 12-bit voltage-output digital-to-analog converter (DAC) manufactured by Texas Instruments. It operates from a single 2.7 V to 5.5 V supply and consumes 177 µA at 3.6 V. The device features a rail-to-rail output amplifier and a three-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, supporting clock rates up to 20 MHz. Key electrical specifications include a typical output settling time of 12.5 µs, a differential non-linearity (DNL) of +0.21/-0.10 LSB, and an integral non-linearity (INL) of ±2.75 LSB. It provides a power-on reset to zero volts and includes a power-down feature reducing consumption below 1 µW.

Digital To Analog Converters Feature Summary

• Radiation hardened design ensuring immunity to total ionizing dose and single event effects for space applications.
• Monotonic operation guaranteed across the full temperature range without missing codes.
• Rail-to-rail output swing capability allowing maximum dynamic range utilization.
• Integrated power-on reset circuit ensures the output initializes to zero volts upon startup.

Digital To Analog Converters Applications

• Satellite altitude and orbit control systems
• Precision sensor signal conditioning in harsh environments
• Motor control circuits requiring high reliability

Digital To Analog Converters Procurement Notes

Verify the specific grade and package configuration required for your mission profile. The MDP designation indicates a die form factor; ensure your substrate and packaging solution meet the necessary mechanical and thermal requirements for the final assembly. Confirm radiation tolerance levels against your system's environmental constraints before procurement.

Digital To Analog Converters Selection Notes

Select this component when radiation hardness is mandatory for a 12-bit conversion application. It serves as a direct replacement for other pin-compatible devices in the family, such as the DAC101S101 or DAC081S101, if resolution adjustments are needed. Ensure the host system can provide a clean supply voltage, as the device uses VA as its reference.

Digital To Analog Converters Part Context

This part belongs to the DAC121S101QML-SP family, which is specifically qualified for space and military use under MIL-STD-883 standards. It shares architectural similarities with commercial variants but includes enhanced testing and radiation hardening processes to withstand extreme orbital conditions.

Digital To Analog Converters Replacement Considerations

Public confirmed substitutes include the DAC121S101WGRQV and DAC121S101WGRLV for ceramic SOIC packages. For lower resolution needs within the same pin-compatible family, consider the DAC101S101 or DAC081S101.