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MAX3483ECSA Equivalent & Substitute Parts
Part Overview
The MAX3483ECSA 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, which necessitates identification of equivalent and substitute components for new designs or production continuity. The MAX3483ECSA maintains a 1/1 driver/receiver configuration with 250 kbps data rate capability and operates across a 3V to 3.6V supply voltage range. Finding suitable alternatives ensures design flexibility and supply chain resilience.
Substiute Parts
Key Parameters
| Parameter | MAX3483ECSA |
|---|---|
| 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 | 250 kbps |
| Voltage - Supply | 3V ~ 3.6V |
| Operating Temperature | 0°C ~ 70°C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
| RoHS Status | RoHS non-compliant |
Substitute Part Grouping Explanation
Substitution of the MAX3483ECSA is determined by strict equivalence across the following critical parameters: protocol support (RS422/RS485), transceiver configuration (1/1 half-duplex), package type (8-SOIC), receiver hysteresis (50 mV), data rate capability (minimum 250 kbps), supply voltage range (3V ~ 3.6V), and mounting type (surface mount).
Substitute parts are grouped into three categories:
Parametric Equivalents maintain identical electrical specifications and differ only in product status (active vs. obsolete) and packaging format (tube vs. reel). These parts are direct replacements with no design modifications required.
Upgrade Parts extend the operating temperature range to -40°C ~ 85°C and maintain all other core electrical parameters. These parts provide enhanced reliability for wider temperature applications while preserving functional compatibility.
MFR Recommended Parts include variants with extended temperature ranges and alternative data rate specifications. ADM3485 series parts support 10 Mbps data rates, providing higher bandwidth capability while maintaining the same 1/1 half-duplex RS422/RS485 transceiver architecture.
Parameter Comparison
| Part Number | Manufacturer | Protocol | Drivers/Receivers | Data Rate | Supply Voltage | Operating Temp | Package | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|
| MAX3483ECSA | Analog Devices Inc./Maxim Integrated | RS422, RS485 | 1/1 | 250 kbps | 3V ~ 3.6V | 0°C ~ 70°C | 8-SOIC | Obsolete | RoHS non-compliant |
| MAX3483CSA+ | Analog Devices Inc./Maxim Integrated | RS422, RS485 | 1/1 | 250 kbps | 3V ~ 3.6V | 0°C ~ 70°C | 8-SOIC | Active | ROHS3 Compliant |
| MAX3483ECSA+ | Analog Devices Inc./Maxim Integrated | RS422, RS485 | 1/1 | 250 kbps | 3V ~ 3.6V | 0°C ~ 70°C | 8-SOIC | Active | ROHS3 Compliant |
| ADM3483EARZ | Analog Devices Inc. | RS422, RS485 | 1/1 | 250 kbps | 3V ~ 3.6V | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 Compliant |
| ADM3483EARZ-REEL7 | Analog Devices Inc. | RS422, RS485 | 1/1 | 250 kbps | 3V ~ 3.6V | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 Compliant |
| ADM3483ARZ | Analog Devices Inc. | RS422, RS485 | 1/1 | 250 kbps | 3V ~ 3.6V | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 Compliant |
| ADM3483ARZ-REEL7 | Analog Devices Inc. | RS422, RS485 | 1/1 | 250 kbps | 3V ~ 3.6V | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 Compliant |
| ADM3485ARZ | Analog Devices Inc. | RS422, RS485 | 1/1 | 10 Mbps | 3V ~ 3.6V | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 Compliant |
| ADM3485ARZ-REEL7 | Analog Devices Inc. | RS422, RS485 | 1/1 | 10 Mbps | 3V ~ 3.6V | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 Compliant |
| ADM3485EARZ | UMW | RS422, RS485 | 1/1 | 12 Mbps | 2.97V ~ 3.63V | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 Compliant |
| ADM3485EARZ-REEL | Analog Devices Inc. | RS422, RS485 | 1/1 | 10 Mbps | 3V ~ 3.6V | -40°C ~ 85°C | 8-SOIC | Active | ROHS3 Compliant |
Engineering Selection Recommendations
For applications requiring direct replacement of the MAX3483ECSA with identical electrical performance and operating temperature range, select MAX3483CSA+ or MAX3483ECSA+. Both parts are active products with ROHS3 compliance, addressing the obsolescence and RoHS non-compliance status of the original part.
For applications operating across extended temperature ranges (-40°C to 85°C), the ADM3483 series (ADM3483EARZ, ADM3483EARZ-REEL7, ADM3483ARZ, ADM3483ARZ-REEL7) provides equivalent 250 kbps data rate performance with enhanced thermal specifications. These parts are manufactured by Analog Devices Inc. and carry ROHS3 compliance.
For applications requiring higher data rate capability (10 Mbps or 12 Mbps), the ADM3485 series offers increased bandwidth while maintaining the same 1/1 half-duplex RS422/RS485 transceiver configuration. ADM3485ARZ, ADM3485ARZ-REEL7, ADM3485EARZ, and ADM3485EARZ-REEL support extended temperature operation and ROHS3 compliance.
Selection between tube and reel packaging (REEL7 or REEL variants) depends on procurement volume and assembly requirements. Reel packaging is suitable for high-volume automated assembly, while tube packaging accommodates lower-volume or manual assembly processes.
Frequently Asked Questions (FAQ)
Q: Can MAX3483CSA+ or MAX3483ECSA+ be used as direct replacements for MAX3483ECSA?
A: Yes. Both parts maintain identical electrical specifications including 250 kbps data rate, 3V to 3.6V supply voltage, 50 mV receiver hysteresis, and 8-SOIC package. The primary differences are product status (active vs. obsolete) and RoHS compliance (ROHS3 vs. non-compliant). No design modifications are required.
Q: What is the advantage of selecting ADM3483 parts over MAX3483 equivalents?
A: ADM3483 parts extend the operating temperature range to -40°C ~ 85°C compared to the MAX3483ECSA range of 0°C ~ 70°C. This wider temperature specification is beneficial for industrial and automotive applications. All other electrical parameters remain equivalent at 250 kbps data rate.
Q: When should ADM3485 parts be selected instead of ADM3483 or MAX3483?
A: ADM3485 parts support 10 Mbps data rates, compared to 250 kbps for MAX3483 and ADM3483 series. Select ADM3485 when higher bandwidth communication is required. The 1/1 half-duplex RS422/RS485 transceiver configuration remains unchanged.
Q: What is the difference between REEL7 and standard reel packaging?
A: REEL7 and standard reel packaging both accommodate automated pick-and-place assembly. REEL7 refers to Digi-Reel format. Selection depends on assembly equipment compatibility and procurement preferences. Electrical performance is identical.
Q: Is the ADM3485EARZ from UMW compatible with Analog Devices ADM3485 parts?
A: ADM3485EARZ from UMW maintains RS422/RS485 protocol support and 1/1 half-duplex configuration in an 8-SOIC package. However, it specifies 12 Mbps data rate, 30 mV receiver hysteresis, and 2.97V ~ 3.63V supply voltage. Verify these parameter differences against application requirements before substitution.
Q: Are all substitute parts ROHS3 compliant?
A: All substitute parts listed are ROHS3 compliant. The original MAX3483ECSA is RoHS non-compliant. Substitution with any listed part addresses RoHS compliance requirements for new designs and production.
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