MAX260AEWG+

Overview

The MAX260AEWG+ is a microprocessor-programmable universal active filter housed in a 24-pin Wide SOIC package. It contains two second-order switched-capacitor sections with independent center frequency and Q control. The device operates on ±5V supplies, drawing a typical current of 15 mA. It supports clock frequencies up to 400 kHz for section A and B, enabling a center frequency range from 0.01 Hz to 7.5 kHz. The fCLK/f0 ratio error is guaranteed at ±1% for the A grade. Offset voltage is typically ±0.1 mV, with a temperature coefficient of ±0.75 mV/°C.

Feature Summary

• Microprocessor interface allows independent programming of center frequency and Q via digital inputs.
• Universal topology supports bandpass, lowpass, highpass, notch, and allpass configurations without external components.
• Auto-zero circuitry provides superior DC offset and drift characteristics compared to related models.

Applications

• Microprocessor-tuned filters
• Anti-aliasing filters
• Digital signal processing systems

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Check RoHS compliance status and confirm the specific suffix matches the required package and temperature range. Ensure the source document corresponds to the exact part number to avoid substitution errors.

Selection Notes

Select this model when precise DC accuracy and low-frequency operation are required. The MAX260 offers better offset specifications than the MAX261 or MAX262 but has a lower maximum center frequency limit. Verify that the application clock requirements align with the 400 kHz maximum specification.

Part Context

This component belongs to the MAX260/MAX261/MAX262 family of CMOS dual second-order universal switched-capacitor active filters. While sharing the same pinout and interface, the MAX260 is distinguished by its auto-zero architecture, which optimizes it for applications demanding high DC precision over wide bandwidths.

Replacement Considerations

The MAX261AEWG+ and MAX262AEWG+ share identical pinouts and interfaces. However, they exhibit higher offset voltages and different center frequency ranges. Substitution requires re-evaluation of DC performance and clock-to-frequency ratio constraints.