MAX293ESA+

Overview

The MAX293ESA+ is an active, low-pass, switched-capacitor filter manufactured by Analog Devices Inc. under the Maxim Integrated brand. It features a single channel and operates within a supply voltage range of 4.75 V to 5.5 V. The device supports a clock frequency up to 500 kHz and provides a cutoff frequency of 10 kHz. Designed for surface-mount installation, it utilizes an 8-SOIC package. The component functions reliably across an extended temperature range from -40°C to +85°C.

Feature Summary

• Switched-capacitor architecture enables precise filter characteristics without external passive components.

Applications

• Signal conditioning in data acquisition systems

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and environmental compliance. Confirm availability status through authorized distribution channels as stock levels fluctuate. Ensure the selected variant matches the required operating temperature range and pinout configuration for the target application design.

Selection Notes

Select this component when a fixed 10 kHz cutoff frequency is required for low-pass filtering applications. Verify that the system clock frequency can be maintained within the specified operational limits to ensure accurate filter performance. Consider the SOIC-8 package dimensions during PCB layout planning to ensure adequate clearance and thermal management.

Part Context

This part belongs to the MAX293 series of switched-capacitor filters. These devices are designed to replace traditional RC active filters by utilizing internal capacitors controlled by an external clock signal. This approach allows for high precision and stability while minimizing board space and component count in analog signal processing circuits.