MAX297CSA+

Overview

The MAX297CSA+ is an eighth-order, lowpass, elliptic active filter utilizing switched-capacitor technology. It features a cutoff frequency of 50 kHz and operates on a single supply voltage ranging from 4.75 V to 11 V. The device is housed in an 8-pin SOIC package and supports surface-mount installation. It functions within a temperature range of 0°C to +70°C and includes one channel for signal processing applications requiring high selectivity.

Feature Summary

• Eighth-order elliptic response provides steep roll-off characteristics for effective noise rejection
• Switched-capacitor architecture enables precise frequency control without external timing components
• Single-supply operation simplifies power integration in portable and battery-driven systems

Applications

• Data acquisition systems requiring anti-aliasing filtering
• Instrumentation circuits demanding high-selectivity signal conditioning
• Communication equipment utilizing narrowband signal extraction

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lot traceability prior to procurement. Ensure storage conditions meet specified humidity and temperature limits to maintain performance integrity during handling and assembly processes.

Selection Notes

Select this component when high-order filtering is required without complex passive networks. Consider the switched-capacitor nature which may introduce clock feedthrough effects. Evaluate system clock availability as the filter performance depends directly on the external clock frequency relative to the cutoff specification.

Part Context

This part belongs to the MAX297 series of switched-capacitor filters designed by Analog Devices/Maxim Integrated. These devices integrate multiple operational amplifiers and capacitors to realize complex filter responses in a compact footprint, replacing bulky LC or RC networks in modern electronic designs.

Replacement Considerations

MAX297CWE+