MAX264BEWI

Overview

The MAX264BEWI+ is a pin-programmable universal switched-capacitor active filter manufactured by Analog Devices Inc. under the Maxim Integrated brand. It features two second-order filter sections housed in a 28-pin wide SOIC package. The device supports center frequencies up to 140 kHz, allowing for precise control of filter functions via microprocessor interfaces. Key electrical parameters include a maximum supply voltage of 12.6 V and a minimum of 4.74 V, with an operating temperature range extending from -55°C to +125°C.

Feature Summary

• Pin-programmable architecture enables digital control over center frequency, Q factor, and filter mode without external components.
• Dual second-order sections provide versatile configurations including bandpass, lowpass, highpass, notch, and allpass responses.
• Integrated clock inputs support operation with crystals, RC networks, or external clock generators.

Applications

• Telecommunications signal processing
• Instrumentation and measurement systems
• Audio processing circuits

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific ordering suffixes that may indicate tape-and-reel packaging versus tube quantities. Ensure the supplier provides valid traceability documentation for industrial-grade parts.

Selection Notes

Select this component when dual independent filter sections are required within a single package. Verify that the application clock frequency aligns with the device's 140 kHz center frequency limit. Consider the wide SOIC package dimensions for PCB layout constraints compared to smaller surface-mount alternatives.

Part Context

This part belongs to the MAX263/MAX264/MAX267/MAX268 family of universal switched-capacitor filters. The MAX264 variant specifically extends the center frequency range to 140 kHz, distinguishing it from lower-frequency siblings like the MAX261. The BEWI suffix indicates the extended temperature grade and wide SOIC package type.

Replacement Considerations

MAX264ACWI+