Analog Devices Inc. AD7371JN

The AD7371 receive path combines a second-order continuous-time low-pass stage, a fourth-order switched-capacitor high-pass stage and a seventh-order switched-capacitor low-pass stage. Its nominal voiceband passband extends from 180 Hz to 3.5 kHz under the data-sheet clock conditions. An eight-bit digital bus sets input gain, while clock-divider controls determine the internal switched-capacitor timing.

The ADI ordering guide identifies AD7371JN as package option N-24, a 24-pin plastic DIP. The LCDChip package registry maps the database description 24-DIP (0.300 in, 7.62 mm) to the normalized name 24-DIP. Verify the mechanical drawing and board footprint against the exact supplied part.

Layout checks

• Confirm 24-pin numbering and pin-1 orientation.
• Check row spacing, body size and lead-hole geometry against the controlled N-24 outline.
• Keep analog and digital supply/ground returns consistent with the reference design.

The registered 24-DIP JPG is currently missing; the expected path is retained for later completion.

The groups below follow the AD7371 DIP pin-function table in the Analog Devices obsolete data sheet; they are not the AD7341 transmit-filter pinout.

Check the official package drawing before assigning PCB pads; signal names alone do not establish layout orientation.

Values are tied to the Analog Devices AD7341/AD7371 Rev. A receive-filter table; distinguish specified maxima/minima from typical values and verify the original table for final design sign-off.

No drop-in replacement is established here. AD7371JP is the same receive-filter family in a 28-pin PLCC, so its package and pinout require a board change. AD7341JN is a transmit/reconstruction filter and does not provide the AD7371 receive-filter function. Any redesign must revalidate passband, gain programming, clocking, supply rails, package, temperature range and procurement status.

These candidate order codes are text only because a suitable exact, qualified internal replacement link was not established.

Analog Devices identifies the AD7371 product family as obsolete. The controlled legacy data sheet covers the AD7341 transmit filter and AD7371 receive filter; use the AD7371JN ordering row and AD7371 DIP pin table specifically for this product.

For this obsolete order code, verify the complete top marking, lot/date code, chain of custody, lead condition and storage history. Do not interpret a third-party listing as manufacturer-authorized current production.

Use the official legacy data sheet and mechanical drawing for final validation. This draft does not establish available authorized inventory, current pricing or a qualified substitute. Resolve the missing package image and sourcing evidence before release.