MAX268ACWG

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The MAX268ACWG is an IC manufactured by Maxim Integrated, specifically designed for amplify and filter analog audio signals. This IC packages two operational amplifiers and two active filters, which can be used for interface, filtering, and active applications.

Interface
The MAX268ACWG has a number of interface features. It allows for two digitally controlled input gain stages: the first stage supports up to 24dB of gain and the second supports up to 18dB of gain. It also has an adjustable high-pass filter with a control range from 20Hz to 500Hz. The input impedance of the IC is 50 kΩ, ensuring minimal signal degradation.

Filtering
The MAX268ACWG utilizes two active filters. The first is a low-pass filter which provides a 48dB-per-octave slope and a cut-off frequency range of 10kHz to 250kHz. The second is a band-pass filter with a range of 150Hz to 5kHz. Both of these filters feature adjustable gain, allowing for precise control over the signal.

Active
The MAX268ACWG is capable of providing up to 18dB of active gain. This gain is adjustable and can be used to boost low-level signals, providing them with the necessary level to drive an amplifier or speaker. Additionally, the IC supports two user-programmable output currents of up to 50mA, which allow for a variety of interfacing options.

In conclusion, the MAX268ACWG is a versatile IC, providing a wide range of interface, filtering and active features. It is easy to use and configure, making it an ideal choice for applications requiring amplification and/or filtering of analog audio signals.

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