DAC121S101WGRQV

Digital To Analog Converters Overview

The DAC121S101WGRQV is a radiation-hardened, 12-bit voltage-output digital-to-analog converter (DAC) designed for high-reliability environments. It operates from a single 2.7 V to 5.5 V supply and features rail-to-rail output swing with an on-chip buffer amplifier. The device utilizes 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 total ionizing dose tolerance of 100 krad(Si), and single-event latch-up immunity at 120 MeV-cm²/mg. Power consumption is minimized through multiple power-down modes, drawing as little as 0.014 µW in deep standby.

Digital To Analog Converters Feature Summary

• Radiation hardened design ensuring reliability in space applications
• Ensured monotonicity across the full operating temperature range
• Power-on reset circuit guarantees zero-volt output state upon initialization
• Flexible power management with four distinct power-down modes

Digital To Analog Converters Applications

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

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix against the manufacturer's current orderable addendum to confirm package type and radiation qualification level. Ensure that the procurement source provides valid traceability documentation required for aerospace and defense components. Confirm compliance with MIL-STD-883 quality conformance inspection standards prior to final acquisition.

Digital To Analog Converters Selection Notes

Select this component when radiation hardness is mandatory for the target application environment. The device serves as a direct replacement for other parts in the DAC121S101 family where extended temperature operation and low power are critical. Verify that the system power supply can provide a clean reference voltage, as the device lacks internal references and relies on the supply rail for accuracy.

Digital To Analog Converters Part Context

This part belongs to the DAC121S101 series, which includes commercial, automotive, and radiation-hardened variants. The WGRQV suffix specifically denotes the ceramic SOIC package variant qualified under the QML-SP standard. It shares architectural similarities with the DAC121S101-Q1 but offers enhanced radiation tolerance suitable for orbital deployment.

Digital To Analog Converters Replacement Considerations

The datasheet identifies the AD5320 and DAC7512 as pin-compatible replacements for the standard commercial DAC121S101. However, these general-purpose devices do not possess the radiation hardening or military-grade qualification of the DAC121S101WGRQV. No direct radiation-hardened substitutes are listed in the provided documentation.