DAC121S101 MDR

Digital To Analog Converters Overview

The DAC121S101 MDR is a radiation-hardened, 12-bit voltage-output digital-to-analog converter die. 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 settling time of 12.5 µs, integral non-linearity (INL) of ±2.75 LSB, and differential non-linearity (DNL) of +0.21/-0.10 LSB. It provides total ionizing dose immunity of 100 krad(Si) and ensures monotonicity.

Digital To Analog Converters Feature Summary

• Radiation hardened design ensuring functional integrity in high-radiation environments
• Rail-to-rail voltage output capability utilizing the supply voltage as reference
• Low power operation with microWatt-level consumption in power-down modes
• Guaranteed monotonicity across the full operating temperature range

Digital To Analog Converters Applications

• Satellite altitude and orbit control systems
• Precision sensor signal conditioning
• Motor control applications in harsh environments

Digital To Analog Converters Procurement Notes

Verify that the specific orderable part number matches the required radiation hardness level and package configuration. Confirm that the MDR designation corresponds to the bare die form factor intended for custom packaging or hybrid integration. Ensure compatibility with the host system's serial interface timing requirements before finalizing procurement.

Digital To Analog Converters Selection Notes

Select this component when radiation tolerance and low power are critical constraints. The die format requires external packaging solutions. Verify that the application can accommodate the supply voltage acting as the reference, as this impacts power supply rejection requirements. Ensure the host controller supports the 3-wire synchronous interface protocol.

Digital To Analog Converters Part Context

The DAC121S101 MDR is the bare die version of the DAC121S101QML-SP family. It shares identical electrical characteristics and radiation hardening specifications with the packaged ceramic SOIC variants. This die is designed for customers requiring custom substrate integration or hybrid microcircuit assembly for specialized aerospace and defense applications.

Digital To Analog Converters Replacement Considerations

The DAC121S101QML-SP in ceramic SOIC packages serves as the direct packaged equivalent. For non-radiation-hardened commercial applications, the standard DAC121S101 may be considered if environmental conditions allow.