MAX262BENG

Overview

The MAX262BENG is a microprocessor-programmable universal active filter from the MAX260/MAX261/MAX262 series. It contains two second-order switched-capacitor sections with independent center frequency and Q control. The device operates on single +5V or ±5V supplies, supporting clock frequencies up to 4MHz for section A and B. It features a 6-bit f0 program input and 7-bit Q control via a parallel interface. The extended temperature range version (-40°C to +85°C) ensures reliable performance in industrial environments.

Feature Summary

• Microprocessor programmable interface for precise control of filter parameters
• Dual second-order switched-capacitor sections with independent tuning
• Supports multiple filter configurations including bandpass, lowpass, highpass, notch, and allpass
• Integrated oscillator options using crystal, RC network, or external clock

Applications

• µP-Tuned Filters
• Anti-Aliasing Filters
• Digital Signal Processing
• Adaptive Filters
• Signal Analysis

Procurement Notes

Verify the specific suffix 'E' indicates the extended temperature range (-40°C to +85°C). Confirm package type matches the engineering sample or production variant requirements. Check current availability status as older Maxim Integrated products may have limited stock or end-of-life implications. Ensure supply chain sources are authorized distributors to guarantee component authenticity.

Selection Notes

Select the MAX262BENG when higher center frequencies up to 140kHz are required compared to the MAX260 or MAX261. Choose this part if an extended operating temperature range is necessary for the application environment. Verify that the system can provide the required clock signals and digital interface timing. Consider the need for dual independent filter sections within a single package.

Part Context

The MAX262BENG belongs to the MAX260/MAX261/MAX262 family of CMOS dual second-order universal switched-capacitor active filters. These devices allow microprocessor control of precise filter functions without external components. The MAX262 variant specifically extends the center frequency range to 140kHz by employing lower clock-to-f0 ratios compared to its siblings.

Replacement Considerations

MAX262ACNG (Commercial grade, same package)

FAQ

What is the maximum center frequency range for the MAX262?

The MAX262 extends the center frequency range to 140kHz by employing lower clock-to-f0 ratios.

How is the filter Q controlled?

The filter Q is programmed independently using a 7-bit control word via the microprocessor interface.

What power supply options are supported?

The device supports single +5V and ±5V operation.