RH-DAC121K1

Digital To Analog Converters Overview

The RHRDAC121K1 is a radiation-hardened, 12-bit digital-to-analog converter manufactured by STMicroelectronics. It operates on a single power supply ranging from 2.3 V to 3.6 V and features an internal voltage reference with rail-to-rail output swing. The device utilizes a three-wire serial interface compatible with standard SPI, supporting clock rates up to 20 MHz. It is housed in a hermetic ceramic Flat10-lead package and is qualified under the QML-V standard for space applications. The component ensures monotonicity and includes a power-on-reset function that initializes the output to zero volts.

Digital To Analog Converters Feature Summary

• Radiation-hardened design ensuring immunity to total ionizing dose and single-event latch-up
• Hermetic ceramic packaging suitable for extreme environmental conditions
• Internal voltage reference with rail-to-rail output capability
• Low-power operation with integrated power-down functionality

Digital To Analog Converters Applications

• Satellite telemetry systems
• Spaceborne imaging signal chains
• High-performance aerospace data acquisition
• Radiation-tolerant precision control loops

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix K1 against the manufacturer's current datasheet to confirm package type and qualification level. Ensure procurement channels provide traceability documentation required for QML-V certified components. Confirm availability of test reports verifying radiation hardness specifications prior to integration into flight hardware.

Digital To Analog Converters Selection Notes

Select this component when designing systems requiring high radiation tolerance combined with low power consumption. The 12-bit resolution and 1 Msps speed suit moderate-speed precision applications. Verify that the system power budget aligns with the 2.3 V to 3.6 V operating range and that the SPI interface timing meets the host controller requirements.

Digital To Analog Converters Part Context

This part belongs to STMicroelectronics' portfolio of rad-hard data converters developed using specific radiation-hardening design rules on CMOS technology. It complements other space-grade analog components designed for harsh environments where standard commercial parts would fail due to radiation effects.

Digital To Analog Converters Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official replacement guides or contact the manufacturer directly for validated cross-references.