MAX292EPA+

Overview

The MAX292EPA+ is an 8th-order lowpass Bessel switched-capacitor filter in an 8-pin Plastic DIP package. It provides a maximally flat passband with low overshoot and fast settling times, suitable for applications requiring linear phase response. The device operates on single +5V or dual ±5V supplies within a -40°C to +85°C temperature range. Its corner frequency is tunable from 0.1Hz to 25kHz using a clock-to-corner-frequency ratio of 100:1. An internal oscillator requires only an external capacitor, while an uncommitted op amp supports additional filtering stages.

Feature Summary

• Bessel filter response providing low overshoot and fast settling
• Clock-tunable corner frequency range from 0.1Hz to 25kHz
• Internal oscillator or external clock input capability
• Integrated uncommitted operational amplifier

Applications

• ADC anti-aliasing filters
• DAC post-filtering
• Noise analysis systems
• 50Hz/60Hz line-noise filtering

Procurement Notes

Verify the component's authenticity by checking the manufacturer markings against official datasheet specifications. Confirm that the ordering suffix matches the required temperature range (-40°C to +85°C) and package type (8-PDIP). Ensure compliance with relevant environmental standards such as RoHS before finalizing procurement decisions.

Selection Notes

Select this component when a Bessel response is required for minimal signal distortion during transient states. Verify that the system can provide a stable clock signal between 10kHz and 2.5MHz to achieve the desired cutoff frequencies. Consider the available supply voltage options and ensure the uncommitted op amp meets the requirements for any necessary post-filtering or anti-aliasing tasks.

Part Context

This part belongs to the MAX291/MAX292/MAX295/MAX296 family of 8th-order lowpass switched-capacitor filters. While the MAX291 and MAX295 offer Butterworth responses, the MAX292 specifically provides a Bessel characteristic. This family allows designers to implement complex analog filtering functions with minimal external components by utilizing switched-capacitor technology.

Replacement Considerations

The MAX291CPA+ serves as a functional substitute if a Butterworth response is acceptable instead of the Bessel response. For identical Bessel characteristics, verify availability of other MAX292 variants such as the MAX292ESA+ or MAX292CWE+. Ensure pin compatibility and electrical specifications match the original design requirements.