AD7341JN

Specialized ICS Overview

The AD7341JN is a high-performance, digitally programmable 8th-order low-pass filter manufactured by Analog Devices (formerly Linear Technology). It is designed for voiceband reconstruction and anti-aliasing applications in telecommunications and data acquisition systems. The device features a 24-pin DIP package and allows for precise control of cutoff frequency and stopband attenuation via digital control lines.

Specialized ICS Feature Summary

• Digitally programmable 8th-order low-pass filter
• Configurable cutoff frequencies: 300 Hz, 600 Hz, 1 kHz, 2 kHz, 3 kHz, and 4 kHz
• Adjustable stopband attenuation: 40 dB or 60 dB
• Low distortion and noise performance suitable for voiceband signals
• 24-pin DIP package (JN suffix)

Specialized ICS Applications

• Voiceband signal reconstruction in telecommunication systems
• Anti-aliasing filters in data acquisition and sampling systems
• Programmable audio processing circuits
• Base station equipment and modem interfaces

Specialized ICS Procurement Notes

This component may be considered obsolete or end-of-life (EOL) by Analog Devices. Check current availability through authorized distributors or look for replacement families such as the LTC1563 series or newer Sigma-Delta based solutions if active procurement is required.

Specialized ICS Part Context

The AD7341 is part of the LT1115/AD7341 family of digitally programmable filters. Unlike fixed analog filters, it uses internal switched-capacitor technology controlled by digital inputs to select specific filter characteristics. The 'JN' designation indicates the military/industrial temperature grade variant housed in a ceramic or plastic dual in-line package (typically plastic for standard commercial variants, but J often implies wider temp range or specific packaging in older LT/ADI lineups; verify against datasheet for exact temp grade, usually -40C to +85C or similar for J/N variants). Note: Analog Devices acquired Linear Technology, which originally produced this part.