MAX263ACWI

Overview

The MAX263ACWI+ is a pin-programmable universal active filter manufactured by Analog Devices Inc. under the Maxim Integrated brand. It features two second-order switched-capacitor filter sections housed in a 28-pin SOIC package. The device supports center frequencies up to 57 kHz, determined by an external clock input and a 6-bit f0 program input. Operating voltage ranges from 4.74 V to 12.6 V, with a typical supply of ±5 V. It functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Pin-programmable configuration allows selection of bandpass, lowpass, highpass, notch, and allpass filter responses without external components.
• Independent programming of center frequency (f0) and quality factor (Q) via digital inputs.
• Dual second-order filter sections enable complex filtering topologies within a single integrated circuit.

Applications

• Signal processing systems requiring precise analog filtering
• Instrumentation circuits needing programmable frequency response
• Communication equipment utilizing switched-capacitor techniques

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status for environmental regulations. Check current lifecycle status as discontinuance notifications may apply to older Maxim Integrated product lines. Ensure ordering suffixes match required package and temperature specifications.

Selection Notes

Select this component when dual second-order switched-capacitor filtering is required with digital programmability. Compare against MAX264, MAX267, and MAX268 for different frequency ranges. Verify that the 57 kHz maximum center frequency meets system requirements. Ensure the 28-pin SOIC package fits the PCB layout constraints.

Part Context

The MAX263 belongs to a family of CMOS universal active filters including the MAX260, MAX261, MAX262, MAX264, MAX267, and MAX268. These devices share similar pin-programmable architectures but differ in maximum center frequency capabilities and specific electrical characteristics. The MAX263 specifically targets applications requiring frequencies up to 57 kHz.

Replacement Considerations

MAX264BCWI+ offers similar functionality with potentially different frequency characteristics. MAX267ACWI+ provides alternative performance metrics within the same family. Verify pin compatibility and electrical specifications before substitution.