MAX3486CSA-T Equivalent & Substitute Parts

Part Overview

The MAX3486CSA-T is a half-duplex RS422/RS485 transceiver IC manufactured by Analog Devices Inc./Maxim Integrated in an 8-SOIC surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The device operates within a 3V to 3.6V supply voltage range and supports data rates up to 2.5 Mbps with a receiver hysteresis of 50 mV.

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX3486CSA-T
Manufacturer	Analog Devices Inc./Maxim Integrated
Type	Transceiver
Protocol	RS422, RS485
Number of Drivers/Receivers	1/1
Duplex	Half
Receiver Hysteresis	50 mV
Data Rate	2.5 Mbps
Voltage - Supply	3V ~ 3.6V
Operating Temperature	0°C ~ 70°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the MAX3486CSA-T is determined by the following critical parameters: protocol support (RS422/RS485), transceiver configuration (1/1 half-duplex), supply voltage range (3V ~ 3.6V), package type (8-SOIC), and mounting method (surface mount). Parts are grouped into three categories based on their relationship to the main part:

Parametric Equivalents maintain identical electrical specifications and package dimensions, differing only in product status (active vs. obsolete) and packaging format (tape & reel or cut tape).

Direct Substitutes provide the same protocol and transceiver configuration within compatible supply voltage and temperature ranges, though with variations in receiver hysteresis and data rate specifications.

Upgrade Options offer enhanced performance characteristics, including extended temperature ranges (-40°C to 85°C) and higher data rates (2.5 Mbps), while maintaining core RS422/RS485 functionality and package compatibility.

Manufacturer Recommended Alternatives are actively supported parts that meet the core functional requirements with comparable electrical performance and compliance certifications.

Parameter Comparison

Part Number	Manufacturer	Product Status	Protocol	Drivers/Receivers	Duplex	Receiver Hysteresis	Data Rate	Supply Voltage	Operating Temperature	Package	RoHS Status
MAX3486CSA-T	Analog Devices Inc./Maxim Integrated	Obsolete	RS422, RS485	1/1	Half	50 mV	2.5 Mbps	3V ~ 3.6V	0°C ~ 70°C	8-SOIC	ROHS3 Compliant
Parametric Equivalents
MAX3486CSA+T	Analog Devices Inc./Maxim Integrated	Active	RS422, RS485	1/1	Half	50 mV	2.5 Mbps	3V ~ 3.6V	0°C ~ 70°C	8-SOIC	ROHS3 Compliant
MAX3486ECSA+T	Analog Devices Inc./Maxim Integrated	Active	RS422, RS485	1/1	Half	50 mV	2.5 Mbps	3V ~ 3.6V	0°C ~ 70°C	8-SOIC	ROHS3 Compliant
Direct Substitutes
LTC1480CS8#PBF	Analog Devices Inc.	Active	RS422, RS485	1/1	Half	40 mV	150 KBd	3V ~ 3.6V	0°C ~ 70°C	8-SOIC	ROHS3 Compliant
LTC1480CS8#TRPBF	Analog Devices Inc.	Active	RS422, RS485	1/1	Half	40 mV	150 KBd	3V ~ 3.6V	0°C ~ 70°C	8-SOIC	ROHS3 Compliant
Upgrade Options
LTC1480IS8#PBF	Analog Devices Inc.	Active	RS422, RS485	1/1	Half	70 mV	2.5 Mbps	3V ~ 3.6V	-40°C ~ 85°C	8-SOIC	ROHS3 Compliant
LTC1480IS8#TRPBF	Analog Devices Inc.	Active	RS422, RS485	1/1	Half	70 mV	2.5 Mbps	3V ~ 3.6V	-40°C ~ 85°C	8-SOIC	ROHS3 Compliant
Manufacturer Recommended Alternatives
ADM3483ARZ	Analog Devices Inc.	Active	RS422, RS485	1/1	Half	50 mV	250 kbps	3V ~ 3.6V	-40°C ~ 85°C	8-SOIC	ROHS3 Compliant
ADM3483ARZ-REEL7	Analog Devices Inc.	Active	RS422, RS485	1/1	Half	50 mV	250 kbps	3V ~ 3.6V	-40°C ~ 85°C	8-SOIC	ROHS3 Compliant
ADM3483EARZ	Analog Devices Inc.	Active	RS422, RS485	1/1	Half	50 mV	250 kbps	3V ~ 3.6V	-40°C ~ 85°C	8-SOIC	ROHS3 Compliant
ADM3483EARZ-REEL7	Analog Devices Inc.	Active	RS422, RS485	1/1	Half	50 mV	250 kbps	3V ~ 3.6V	-40°C ~ 85°C	8-SOIC	ROHS3 Compliant

Engineering Selection Recommendations

For direct replacement of the MAX3486CSA-T in existing designs, the MAX3486CSA+T or MAX3486ECSA+T are parametric equivalents with active product status and full ROHS3 compliance. These parts maintain identical electrical specifications and package dimensions, with the primary difference being packaging format and availability.

For new designs requiring extended operational temperature ranges and enhanced reliability, the LTC1480IS8#PBF or LTC1480IS8#TRPBF upgrade options provide -40°C to 85°C operating temperature coverage while maintaining 2.5 Mbps data rate performance and 8-SOIC package compatibility.

The ADM3483 series (ADM3483ARZ, ADM3483ARZ-REEL7, ADM3483EARZ, ADM3483EARZ-REEL7) represents manufacturer-recommended alternatives with active product status, extended temperature ranges, and established supply chain availability. These parts are suitable for applications where the 250 kbps data rate specification meets system requirements.

All substitute parts listed maintain ROHS3 compliance, MSL Level 1 moisture sensitivity rating, and REACH unaffected status, ensuring regulatory alignment with the original MAX3486CSA-T specification.

Frequently Asked Questions (FAQ)

Q: Can MAX3486CSA+T directly replace MAX3486CSA-T? A: Yes. MAX3486CSA+T is a parametric equivalent with identical electrical specifications, receiver hysteresis, data rate, supply voltage, and operating temperature range. The primary difference is product status (active vs. obsolete) and packaging format (tape & reel vs. tube).

Q: What is the difference between parametric equivalents and direct substitutes? A: Parametric equivalents maintain all electrical specifications of the original part. Direct substitutes provide the same protocol and transceiver configuration but may have variations in receiver hysteresis or data rate. Both support RS422/RS485 communication in half-duplex 1/1 transceiver configuration.

Q: Are the LTC1480 series parts compatible with MAX3486CSA-T applications? A: The LTC1480CS8#PBF and LTC1480CS8#TRPBF are direct substitutes with identical supply voltage and operating temperature ranges. However, they operate at 150 KBd data rate and 40 mV receiver hysteresis compared to the MAX3486CSA-T specifications of 2.5 Mbps and 50 mV. The LTC1480IS8 variants offer 2.5 Mbps performance with extended temperature coverage (-40°C to 85°C).

Q: What packaging options are available for substitute parts? A: Substitute parts are available in multiple packaging formats: tube, cut tape (CT) & Digi-Reel, and tape & reel (TR). Selection depends on production volume and assembly requirements. All maintain the 8-SOIC (0.154", 3.90mm Width) physical package dimension.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed maintain ROHS3 compliance, MSL Level 1 moisture sensitivity rating, and REACH unaffected status, matching the regulatory profile of the original MAX3486CSA-T.

Q: Which substitute part offers the best long-term availability? A: The ADM3483 series (ADM3483ARZ, ADM3483ARZ-REEL7, ADM3483EARZ, ADM3483EARZ-REEL7) represents manufacturer-recommended alternatives with active product status and high inventory levels, providing established supply chain continuity for new designs.

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