AM26LS31CDG4 Equivalent & Substitute Parts

Part Overview

The AM26LS31CDG4 is a 4/0 Driver RS422/RS485 interface IC manufactured by Texas Instruments in a 16-SOIC surface mount package. This component is classified as Last Time Buy, indicating limited availability and the necessity to identify functionally equivalent alternatives for ongoing design requirements and production planning. Substitute parts must maintain compatibility across electrical specifications, package dimensions, and protocol support to ensure seamless integration into existing circuit designs.

Substiute Parts

AM26LS31CDG4

Texas InstrumentsIn Stock: 1144AM26LS31CDG4 Datasheet

Current PartRFQ

AM26LS31CDR

Texas InstrumentsIn Stock: 38219AM26LS31CDR Datasheet

MFR RecommendedRFQ

DS26C31TM/NOPB

Texas InstrumentsIn Stock: 1540DS26C31TM/NOPB Datasheet

MFR RecommendedRFQ

DS26C31TMX/NOPB

Texas InstrumentsIn Stock: 20390DS26C31TMX/NOPB Datasheet

MFR RecommendedRFQ

DS26LS31CM/NOPB

Texas InstrumentsIn Stock: 4449DS26LS31CM/NOPB Datasheet

MFR RecommendedRFQ

DS26LS31CMX/NOPB

National SemiconductorIn Stock: 8449DS26LS31CMX/NOPB Datasheet

MFR RecommendedRFQ

AM26LS31CD

Texas InstrumentsIn Stock: 4949AM26LS31CD Datasheet

MFR RecommendedRFQ

MAX3041CSE+

Analog Devices Inc./Maxim IntegratedIn Stock: 1422MAX3041CSE+ Datasheet

MFR RecommendedRFQ

MAX3041CSE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2097MAX3041CSE+T Datasheet

MFR RecommendedRFQ

MAX3041ESE+

Analog Devices Inc./Maxim IntegratedIn Stock: 12743MAX3041ESE+ Datasheet

MFR RecommendedRFQ

MAX3041ESE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 726MAX3041ESE+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM26LS31CDG4 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Protocol support: RS422 and RS485
• Driver/Receiver configuration: 4/0 (4 drivers, 0 receivers)
• Package type: 16-SOIC surface mount
• Package dimensions: 0.154" width, 3.90mm width
• Mounting type: Surface mount

Secondary Compatibility Criteria:

• Supply voltage range (must encompass or match 4.75V ~ 5.25V)
• Operating temperature range (must support minimum 0°C ~ 70°C)
• RoHS3 compliance
• MSL rating of 1 or better

Substitute parts are grouped into two categories based on electrical parameter alignment:

Group 1 - Direct Electrical Match (4.75V ~ 5.25V Supply): AM26LS31CDR, AM26LS31CD, MAX3041CSE+, MAX3041CSE+T

Group 2 - Extended Electrical Specifications (4.5V ~ 5.5V Supply, -40°C ~ 85°C Operating Range): DS26C31TM/NOPB, DS26C31TMX/NOPB, DS26LS31CM/NOPB, DS26LS31CMX/NOPB, MAX3041ESE+, MAX3041ESE+T

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation - Direct Replacement: AM26LS31CDR is the preferred substitute. It maintains identical electrical specifications (4.75V ~ 5.25V supply, 0°C ~ 70°C operating range) and functional characteristics as the AM26LS31CDG4. The part is in Active product status with higher inventory availability (38,110 units) compared to the original Last Time Buy component. Packaging differs only in format (Cut Tape & Digi-Reel versus Tube), which does not affect electrical or mechanical compatibility.

Secondary Recommendation - Extended Temperature Range: DS26C31TMX/NOPB or DS26C31TM/NOPB provide extended operating temperature range (-40°C ~ 85°C) and wider supply voltage tolerance (4.5V ~ 5.5V). These parts are suitable for applications requiring enhanced thermal performance. DS26C31TMX/NOPB is available in Cut Tape & Digi-Reel format with 20,338 units in stock.

Alternative Recommendation - Maxim Integrated Options: MAX3041CSE+ and MAX3041ESE+ series from Analog Devices Inc./Maxim Integrated are functionally equivalent alternatives. MAX3041ESE+ offers extended temperature range (-40°C ~ 85°C) with 12,700 units in stock. All MAX3041 variants are in Active product status.

Avoid: DS26LS31CM/NOPB is marked Obsolete and should not be selected for new designs despite functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can AM26LS31CDR directly replace AM26LS31CDG4 without circuit modification? A: Yes. AM26LS31CDR is electrically and functionally identical to AM26LS31CDG4. Both support RS422/RS485 protocols, feature 4/0 driver/receiver configuration, operate at 4.75V ~ 5.25V, and use identical 16-SOIC packaging. The only difference is packaging format (Cut Tape & Digi-Reel versus Tube), which does not affect circuit performance.

Q: What is the difference between Group 1 and Group 2 substitutes? A: Group 1 substitutes (AM26LS31CDR, MAX3041CSE+, MAX3041CSE+T) maintain the exact supply voltage range (4.75V ~ 5.25V) and operating temperature (0°C ~ 70°C) of the original part. Group 2 substitutes (DS26C31 series, MAX3041ESE+ series) offer extended specifications with wider supply voltage (4.5V ~ 5.5V) and broader operating temperature (-40°C ~ 85°C). Select Group 2 only if your application requires these extended ranges.

Q: Are all substitute parts RoHS3 compliant? A: All listed substitute parts are RoHS3 compliant with MSL rating of 1 (Unlimited), matching the original AM26LS31CDG4 specifications.

Q: Does packaging format (Tube, Cut Tape, Tape & Reel) affect electrical performance? A: No. Packaging format affects only handling, storage, and assembly processes. Electrical and mechanical specifications remain identical regardless of packaging type. Select based on your production assembly requirements.

Q: Why is DS26LS31CM/NOPB listed if it is Obsolete? A: DS26LS31CM/NOPB is included for reference and historical compatibility documentation. It should not be selected for new designs or production planning due to its Obsolete status and limited future availability.

Q: Can I use MAX3041ESE+ in place of AM26LS31CDG4 for extended temperature applications? A: Yes, if your application requires extended temperature operation (-40°C ~ 85°C). MAX3041ESE+ maintains all functional and electrical compatibility while providing superior thermal performance. It is in Active product status with 12,700 units available.