SX9210ICSTRT

Overview

The SX9210ICSTRT is a sensor interface IC from Semtech designed for capacitive proximity sensing applications. It operates on an input supply voltage ranging from 1.7 V to 2 V, with a typical operating supply current of 22 µA. The device supports up to three capacitive sensor inputs and features a capacitance resolution down to 0.008 fF. Communication is handled via an I²C interface operating at frequencies up to 400 kHz. The component is housed in an 8-WLCSP package with dimensions of 1.69 mm x 0.92 mm x 0.2 mm. It functions within a temperature range of -40 °C to +85 °C.

Feature Summary

• Integrates patented Smart Sense Engine technology for advanced signal processing
• Supports up to three independent capacitive sensor inputs
• Provides high-precision capacitance measurement capabilities

Applications

• Proximity detection systems
• Touchless gesture recognition interfaces
• Capacitive sensor controller integration

Procurement Notes

Verify the specific ordering suffix (ICSTRT) to ensure compatibility with required packaging formats such as cut tape or reels. Confirm that the WLCSP-8 package dimensions align with the target PCB layout constraints. Ensure the design accommodates the 1.7 V to 2 V supply voltage range and I²C communication requirements specified in the official datasheet.

Selection Notes

Select this component when low power consumption is critical, given its 22 µA operating current. It is suitable for designs requiring multiple capacitive inputs without complex external circuitry. The small WLCSP footprint makes it ideal for space-constrained portable devices. Verify that the application environment stays within the specified -40 °C to +85 °C operating temperature range.

Part Context

The SX9210ICSTRT belongs to Semtech's SX9210 series of sensor interface controllers. It is part of the Perse family of products, focusing on capacitive sensing solutions. This IC serves as a bridge between capacitive sensors and host processors, simplifying the design of proximity and touch interfaces by handling signal modulation and digitization internally.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.