MAX7491 Datasheet - Maxim

MAX7491 Dual Universal Switched-Capacitor Filters

The MAX7490/MAX7491 consist of two identical lowpower, low-voltage, wide dynamic range, rail-to-rail, 2nd-order switched-capacitor building blocks. Each of the two filter sections, together with two to four external resistors, can generate all standard 2nd-order functions: bandpass, lowpass, highpas.

MAX7491 Features

* o Dual 2nd-Order Filter in a 16-Pin QSOP Package o High Accuracy Q Accuracy: ±0.2% Clock-to-Center Frequency Error: ±0.2% o Rail-to-Rail Input and Output Operation o Single-Supply Operation: +5V (MAX7490) or +3V (MAX7491) o Internal or External Clock o Highpass, Lowpass, Bandpass, and Notch Filters

MAX7491_MaximIntegratedProducts.pdf