MAX268ACWG+

Overview

The MAX268ACWG+ is a pin-programmable universal and bandpass filter manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of 4.74V to 12.6V (±2.37V to ±6.3V) and features two second-order filters housed in a 24-SOIC surface-mount package. The device supports a center frequency of 140kHz for bandpass configurations. Designed for active filtering applications, it allows configuration via external pin connections without requiring microprocessor control.

Feature Summary

• Pin-programmable architecture enables flexible configuration between universal and bandpass filter modes.
• Dual second-order filter sections integrated into a single compact package.
• Operates on a wide single or split power supply range.

Applications

• Signal conditioning circuits requiring programmable frequency selection
• Bandpass filtering in communication systems
• Universal filter implementations in test equipment

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notices prior to procurement. Ensure the SOIC-24 package dimensions match design requirements. Validate that the AC grade temperature specifications align with operational environments.

Selection Notes

Select this component when pin-programmable flexibility is required over microprocessor-controlled alternatives like the MAX261A. Compare against the MAX267 series if different cutoff frequencies are needed. Ensure the 24-SOIC footprint fits the PCB layout constraints. Verify that the 140kHz center frequency meets system bandwidth requirements.

Part Context

The MAX268 belongs to the MAX263/MAX264/MAX267/MAX268 family of pin-programmable filters. It shares architectural similarities with the MAX267 but offers specific frequency characteristics suited for its designated applications. The device represents Maxim Integrated's approach to simplifying filter design through hardware-based programming.

Replacement Considerations

Check for direct substitutes within the MAX26x family such as the MAX267BEWG+ for similar functionality. Verify pin compatibility and electrical parameter overlaps before substitution. Consider newer generations if available, though specific replacements must be confirmed via official documentation.

FAQ

What is the maximum supply voltage for the MAX268ACWG+?

The maximum supply voltage is 12.6V, which corresponds to ±6.3V for split supplies.

Does the MAX268 require a microprocessor for operation?

No, the MAX268 is pin-programmable and does not require a microprocessor for configuration.

What package type does the MAX268ACWG+ use?

It uses a 24-SOIC (Small Outline Integrated Circuit) surface-mount package.