MAX293CWE

Overview

The MAX293CWE+ is an active filter manufactured by Analog Devices Inc./Maxim Integrated, classified under the product category of Active Filters. It functions as a low-pass elliptic switched-capacitor filter with an eighth-order configuration. The device supports a cutoff frequency range from 0.1 Hz to 25 kHz and operates on a single channel. Electrical specifications include a minimum supply voltage of 4.75 V and a maximum of 11 V, with a typical operating voltage of 5 V. The component is housed in a SOIC-16 package and is designed for surface-mount installation. It operates within a temperature range of 0°C to +70°C.

Feature Summary

• Provides high-selectivity signal filtering through an eighth-order elliptic response architecture.
• Utilizes switched-capacitor technology to enable precise frequency control without external passive components.
• Offers flexible power operation across a wide voltage range suitable for various system requirements.

Applications

• Signal conditioning in data acquisition systems
• Anti-aliasing filters in analog-to-digital conversion stages
• Audio processing equipment requiring steep roll-off characteristics

Procurement Notes

Verify current availability status as the component may be subject to limited supply or end-of-life transitions. Confirm that the specific suffix matches the required package and temperature grade. Ensure compliance with RoHS directives if applicable to your manufacturing standards. Cross-reference the manufacturer datasheet for any recent updates regarding pinout or electrical tolerances before finalizing procurement decisions.

Selection Notes

Choose this component when a high-order elliptic response is necessary for superior stopband attenuation. Consider the switched-capacitor nature which requires a clock input; ensure your system provides a stable clock source compatible with the desired cutoff frequency. Evaluate the power supply constraints against the specified 4.75 V to 11 V operational range to guarantee reliable performance under all expected load conditions.

Part Context

This part belongs to the MAX292/MAX293 family of switched-capacitor filters. While the MAX292 offers a Bessel response, the MAX293 specifically provides an elliptic response, making it distinct for applications demanding sharper transition bands. Both share similar pinouts and operational principles but differ in their frequency response characteristics, allowing designers to select based on phase linearity versus stopband rejection needs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult official replacement guides or contact the manufacturer directly for qualified alternatives due to potential lifecycle changes.