The MAX294CWE is an 8th-order, low-pass, switched-capacitor filter from Analog Devices / Maxim Integrated. It offers a corner frequency of 25kHz and is housed in a 16-SOIC package.
The Analog Devices MAX293CWE is an 8th-order, low-pass, elliptic, switched-capacitor filter. It features a corner frequency settable up to 25kHz and is available in a 16-SOIC surface mount package.