MAX262BCWG+

Overview

The MAX262BCWG+ is a CMOS dual second-order universal switched-capacitor active filter in a 24-pin Wide SOIC package. It supports center frequencies up to 140kHz with ±5V or single +5V operation. The device features microprocessor control for precise f0 and Q programming via a 6-bit input and independent address lines. It offers 64-step center frequency control and 128-step Q control, ensuring accurate clock-to-f0 ratios within 2% tolerance.

Feature Summary

• Microprocessor-programmable interface for independent control of center frequency and quality factor
• Universal switched-capacitor topology supporting bandpass, lowpass, highpass, notch, and allpass configurations
• Integrated oscillator options allowing crystal, RC network, or external clock generation

Applications

• Microprocessor-tuned filters
• Anti-aliasing filters
• Digital signal processing systems
• Adaptive filters
• Phase-locked loops

Procurement Notes

Verify the specific suffix 'CWG+' against the manufacturer's current ordering guide to confirm package type and RoHS compliance status. Check for end-of-life notifications as older Maxim Integrated products may have discontinuation risks. Ensure the commercial temperature range meets system requirements.

Selection Notes

Select this component when a dual second-order universal filter with programmable characteristics is required. The MAX262 variant is chosen over MAX260/MAX261 for higher center frequency capabilities up to 140kHz. Verify that the available clock frequencies support the desired fCLK/f0 ratio for the target application bandwidth.

Part Context

This part belongs to the MAX260/MAX261/MAX262 family of microprocessor programmable universal active filters. While sharing similar interfaces, the MAX262 specifically extends the center frequency range to 140kHz by employing lower clock-to-f0 ratios compared to the MAX260 and MAX261 variants.

Replacement Considerations

Direct pin-compatible replacements include the MAX260BCWG+ and MAX261BCWG+. Note that these alternatives offer different center frequency ranges (7.5kHz and 57kHz respectively) and should only be used if the higher bandwidth of the MAX262 is not required.