DAC121S101WGMPR

Digital To Analog Converters Overview

The DAC121S101WGMPR is a radiation-hardened, 12-bit voltage-output digital-to-analog converter (DAC) from Texas Instruments. It operates on a single supply ranging from 2.7 V to 5.5 V 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, integral non-linearity of ±2.75 LSB, and differential non-linearity between -0.7 and +0.21 LSB. It includes power-on reset to zero volts and multiple power-down modes.

Digital To Analog Converters Feature Summary

• Radiation hardened design ensuring immunity to total ionizing dose and single-event effects for space applications.
• Rail-to-rail voltage output capability utilizing the supply voltage as the internal reference.
• Guaranteed monotonicity across the full operating temperature range without external compensation.
• Integrated power-on reset circuit that initializes the output 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 ordering suffix WGMPR against the manufacturer's current documentation to confirm package type and qualification status. Ensure compatibility with system requirements for radiation hardness levels and operating temperature ranges before finalizing procurement decisions.

Digital To Analog Converters Selection Notes

Select this component when radiation tolerance and low power consumption are critical constraints. Verify that the 12-bit resolution and 20 MHz serial interface speed meet the system data throughput requirements. Confirm that the single-supply operation aligns with available power rails.

Digital To Analog Converters Part Context

This part belongs to the DAC121S101 family, which includes various pin-compatible options such as the standard commercial DAC121S101 and automotive-grade variants. The WGMPR suffix specifically denotes a pre-flight engineering prototype version housed in a ceramic SOIC package, distinct from production-grade parts.

Digital To Analog Converters Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult official replacement guides or contact the manufacturer directly for qualified alternatives.