MAX295EPA+

Overview

The MAX295EPA+ is an 8th-order, lowpass, switched-capacitor filter with a Butterworth response. It operates from a single +5V supply (4.75V to 5.5V) or dual ±5V supplies (±2.375V to ±5.5V). The corner frequency ranges from 0.1Hz to 50kHz, controlled by a clock-to-corner-frequency ratio of 50:1. It features an internal oscillator requiring only an external capacitor, or accepts an external clock signal. An uncommitted operational amplifier is included for post-filtering or anti-aliasing. The device is housed in an 8-pin Plastic DIP package and supports an operating temperature range of -40°C to +85°C.

Feature Summary

• Provides maximally flat passband response characteristic of Butterworth filters
• Clock-tunable corner frequency adjustable via internal oscillator or external clock source
• Includes an uncommitted operational amplifier for additional filtering stages

Applications

• ADC Anti-Aliasing Filter
• DAC Post-Filtering
• Noise Analysis
• 50Hz/60Hz Line-Noise Filtering

Procurement Notes

Verify the component against official Analog Devices documentation to confirm pinout compatibility and electrical specifications. Ensure that the ordering suffix corresponds to the required package type and temperature rating. Cross-reference the manufacturer's part number with authorized distributors to validate authenticity and traceability before procurement.

Selection Notes

Select this component when a fixed 8th-order Butterworth lowpass response is required without external resistors. Choose based on the necessary corner frequency relative to the available clock signal. Verify that the power supply configuration matches the single or dual supply requirements specified in the datasheet.

Part Context

This component belongs to the MAX291/MAX292/MAX295/MAX296 family of 8th-order lowpass switched-capacitor filters. The MAX295 variant specifically provides a Butterworth response with a maximum corner frequency of 50kHz. Other family members include the MAX291 (Butterworth, 25kHz max), MAX292 (Bessel, 25kHz max), and MAX296 (Bessel, 50kHz max).

Replacement Considerations

Compatible substitutes within the same family include MAX291ESA+, MAX292ESA+, and MAX296ESA+. These parts share identical pinouts and packaging but differ in filter response type (Butterworth vs. Bessel) and maximum corner frequency capabilities.