PS09FN

Sensor And Detector Interfaces Overview

The PS09FN is a single-chip sensor interface designed for strain gauges, functioning as a resistance-to-digital converter. It operates within a supply voltage range of 2.1 V to 3.6 V and draws a typical operating current of 1.5 µA. The device supports multiple communication protocols, including 2-Wire I2C, 4-Wire SPI, and UART. It features an internal reference and provides both analog and digital outputs. The component is housed in a QFN-40 package (6x6 mm) with exposed pads, suitable for surface mount installation. It is rated for operation between -40°C and +125°C.

Sensor And Detector Interfaces Feature Summary

• Integrated single-chip solution for resistive strain gauge signal conditioning
• Supports flexible digital communication via I2C, SPI, or UART interfaces
• Includes internal reference for simplified system design
• Low power consumption suitable for battery-operated applications

Sensor And Detector Interfaces Applications

• Industrial pressure sensors
• Force measurement systems
• Load cell interfaces
• Automotive sensing modules

Sensor And Detector Interfaces Procurement Notes

Verify the specific ordering suffix and moisture sensitivity level before procurement. Confirm that the QFN-40 package dimensions match the target PCB footprint. Ensure the selected communication protocol configuration aligns with the host microcontroller capabilities. Check for any recent product change notifications regarding pinout or electrical characteristics.

Sensor And Detector Interfaces Selection Notes

Select this component when a low-power, high-resolution interface for strain gauges is required. Compare against the PS081FN if a different package size is needed, noting that the PS081FN is obsolete. Ensure the system voltage remains within the 2.1 V to 3.6 V range. Verify that the required number of channels matches the single-channel architecture of this part.

Sensor And Detector Interfaces Part Context

The PS09FN belongs to the PICOSTRAIN family from ScioSense. It serves as a modern replacement for older generations like the PS081FN. The device integrates analog front-end processing with digital conversion, reducing external component count. It is designed for precision measurement applications requiring high accuracy and low power consumption.

Sensor And Detector Interfaces Replacement Considerations

The PS081FN is an obsolete predecessor. The PS09FN is the manufacturer-recommended replacement. Verify pin compatibility and software register mapping differences during migration.