RH-AD128K1

Analog To Digital Converters (ADC) Overview

The RH-AD128K1 is an engineering model of the RHFAD128, a rad-hard, 8-channel, 12-bit analog-to-digital converter. It operates from 2.7 V to 3.6 V with a throughput rate of 50 ksps to 1 Msps. The device uses a successive-approximation register architecture with an internal track-and-hold circuit. It features 8 single-ended or 4 differential inputs and provides SPI-compatible serial digital output. Packaged in hermetic ceramic Flat-16 leads, it withstands 300 krad(Si) total ionizing dose and is immune to single-event latch-up at 125 MeV.cm²/mg.

Analog To Digital Converters (ADC) Feature Summary

• Radiation-tolerant design for space applications
• Multiplexed eight-channel input capability
• Low-power CMOS architecture
• SPI serial interface compatibility

Analog To Digital Converters (ADC) Applications

• Analog multiplexing and conversion in space environments
• Telemetry systems
• Housekeeping monitoring

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm the exact quality level and packaging configuration. Engineering models may have distinct documentation requirements compared to flight-grade units. Ensure that the procurement channel sources components directly from authorized distributors to maintain traceability and authenticity.

Analog To Digital Converters (ADC) Selection Notes

Select this component when radiation hardness is required for space missions. Confirm that the 2.7 V to 3.6 V supply range matches the system power rails. Verify that the SPI interface timing aligns with the host controller's capabilities. Consider the Flat-16 package dimensions for PCB layout constraints.

Analog To Digital Converters (ADC) Part Context

This part belongs to the RHFAD128 family of rad-hard analog-to-digital converters. The 'K1' suffix denotes an engineering model variant, distinct from the prototype (KX) or QML-V flight versions (K01V/K02V). All variants share the same core functional specifications and radiation tolerance characteristics as defined in the public datasheet.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Direct replacements should be sought through STMicroelectronics sales offices for equivalent radiation-hardened ADC solutions.