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Alternatives to Analog Devices MAX235CPG+

Analog Devices MAX235CPG+ and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

MAX235CPG+ compared against its qualified second sources
MAX235CPG+Analog DevicesLT1130ACSW#PBFAnalog Devices Inc.ADM207EARZAnalog Devices Inc.+1more
FFF CompatibilityRequires 28-SOIC surface-mount footprint instead of 24-DIP, and requires 4 external capacitors for the charge pump.Surface mount (SOIC) package versus the original through-hole (DIP) package.Operates from the same +5V supply and provides the same 5-driver, 5-receiver full duplex RS232 capabilities.Requires 24-SOIC surface mount footprint instead of 24-DIP and requires 4 external charge-pump capacitors.Surface mount (SOIC) package instead of the original 24-DIP through-hole package.Reduces receiver count to 3 (5-driver/3-receiver configuration) instead of the original 5/5 configuration.
AI Summary

MAX235CPG+ by Analog Devices: 5/5 Transceiver Full RS232 24-PDIP.

The LT1130ACSW#PBF is an active 5-driver/5-receiver RS-232 transceiver that fully covers the signal channels of the original MAX235. It requires a redesign to accommodate the 28-SOIC footprint and 4 external charge pump capacitors, as there are no direct drop-in replacements with integrated capacitors.

  • Maintains full 5-driver and 5-receiver (5/5) architecture matching the original signal count
  • Higher data rate of 250 KBd compared to the original 120 Kbps
  • Active product lifecycle with high industry availability
  • Requires 4 external charge-pump capacitors (0.1 uF or 1.0 uF) unlike the capacitor-less MAX235
  • Requires a PCB footprint change from 24-pin DIP to 28-pin SOIC

The ADM207EARZ maintains a 24-pin package profile but reduces the receiver count to 3 (5/3 configuration). It is an active, modern option that requires external capacitors and a package redesign but offers superior temperature ratings.

  • Matches the 24-pin count of the original device, making it footprint-efficient for 24-pin layouts
  • Industrial operating temperature range (-40°C to +85°C) exceeds the original's 0°C to +70°C range
  • Highly cost-effective and widely stocked active replacement
  • Fewer receivers (3 instead of 5), which is incompatible if all 5 receiver channels are utilized
  • Requires 4 external charge-pump capacitors (0.1 uF) and a surface-mount transition
Lifecycle StatusObsoleteUnknownActive
Market AvailabilityNon-stockUnknownIn stock
REACHREACHUnknownREACH
RoHSRoHSUnknownRoHS
Description5/5 Transceiver Full RS232 24-PDIPThe LT1130ACSW#PBF is an active 5-driver/5-receiver RS-232 transceiver that fully covers the signal channels of the original MAX235. It requ5/3 Transceiver Full RS232 24-SOIC
ManufacturerAnalog DevicesAnalog Devices Inc.Analog Devices Inc.
TypeInterfaceComponentInterface
DatasheetOpenN/AOpen
Lead Time16 weeksUnknown11 weeks
Country of OriginUS--
Export Control Class NumberEAR99EAR99EAR99
HTSUS Code8542.39.0090--
Moisture Sensitivity Level1 (Unlimited)--
TypeTransceiver--
DuplexFull--
ProtocolRS232--
Data Rate120Kbps--
Mounting TypeThrough Hole--
Package / Case24-DIP (0.600", 15.24mm)--
Voltage - Supply4.75V ~ 5.25V--
Receiver Hysteresis500 mV--

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Frequently asked questions

Yes. The Analog Devices MAX235CPG+ is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.

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