ISO3082DWG4 Equivalent & Substitute Parts

Part Overview

The ISO3082DWG4 is a 2/2 Transceiver, Isolated Half RS422/RS485 interface IC manufactured by Texas Instruments in a 16-SOIC package. This component is classified as Obsolete, which necessitates identification of equivalent substitute parts for ongoing design support and procurement continuity. The ISO3082DWG4 provides isolated half-duplex RS422/RS485 communication with a 200kbps data rate, suitable for industrial and automotive applications requiring galvanic isolation.

Substiute Parts

ISO3082DWG4

Texas InstrumentsIn Stock: 2034ISO3082DWG4 Datasheet

Current PartRFQ

ISO3082DW

Texas InstrumentsIn Stock: 2816ISO3082DW Datasheet

MFR RecommendedRFQ

ISO3082DWR

Texas InstrumentsIn Stock: 43369ISO3082DWR Datasheet

MFR RecommendedRFQ

MAX14948EWE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 27967MAX14948EWE+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ISO3082DWG4 is determined by the following critical parameters:

• Package Compatibility: 16-SOIC (0.295", 7.50mm Width) form factor
• Functional Requirements: RS422/RS485 isolated transceiver with 2/2 driver/receiver configuration
• Duplex Mode: Half-duplex operation
• Electrical Specifications: Supply voltage range 3.15V ~ 5.5V or 4.5V ~ 5.5V, operating temperature -40°C ~ 85°C
• Data Rate: Minimum 200kbps capability
• Compliance: ROHS3 compliant

Substitute parts are grouped into two categories:

Category 1 - Direct Texas Instruments Replacements: ISO3082DW and ISO3082DWR maintain identical functional specifications, protocol support, and electrical characteristics as the ISO3082DWG4. These parts differ only in product status and packaging format.

Category 2 - Cross-Manufacturer Alternative: MAX14948EWE+T from Analog Devices Inc./Maxim Integrated provides RS422/RS485 isolation functionality with enhanced specifications (5000Vrms isolation, 500kbps data rate, 3-channel configuration) while maintaining package compatibility and operating parameter overlap.

Parameter Comparison

Engineering Selection Recommendations

ISO3082DWR (Recommended Primary Substitute)

ISO3082DWR is the preferred substitute for ISO3082DWG4. This part maintains identical electrical and functional specifications while offering Active product status, ensuring long-term availability and supply chain stability. The 16-SOIC package, supply voltage range, operating temperature, and RS422/RS485 protocol support are fully compatible. ISO3082DWR is ROHS3 compliant and available in Cut Tape and Digi-Reel packaging formats.

ISO3082DW (Secondary Substitute)

ISO3082DW provides identical functional and electrical specifications to ISO3082DWG4 with Last Time Buy status. This part is suitable for applications where supply availability is not a critical constraint. Packaging is provided in Tube format.

MAX14948EWE+T (Cross-Manufacturer Alternative)

MAX14948EWE+T from Analog Devices Inc./Maxim Integrated is a viable substitute when enhanced performance specifications are acceptable. This part offers higher data rate capability (500kbps versus 200kbps), superior isolation voltage (5000Vrms), and lower supply voltage floor (1.71V). The 16-SOIC package and operating temperature range are compatible. MAX14948EWE+T is ROHS3 compliant with Active product status. Note that MAX14948EWE+T features a 3-channel unidirectional configuration, which differs from the 2/2 half-duplex architecture of ISO3082DWG4; circuit-level design review is required to confirm functional equivalence in the target application.

Frequently Asked Questions (FAQ)

Q: Can ISO3082DWR be used as a direct replacement for ISO3082DWG4?

A: Yes. ISO3082DWR is a direct functional equivalent. Both parts share identical RS422/RS485 protocol support, 2/2 driver/receiver configuration, half-duplex operation, 200kbps data rate, 30mV receiver hysteresis, supply voltage range (3.15V ~ 5.5V, 4.5V ~ 5.5V), and operating temperature range (-40°C ~ 85°C). The 16-SOIC package and surface mount characteristics are identical. ISO3082DWR offers the advantage of Active product status.

Q: What is the difference between ISO3082DW and ISO3082DWR?

A: ISO3082DW and ISO3082DWR are functionally identical. The primary differences are product status (Last Time Buy versus Active) and packaging format (Tube versus Cut Tape & Digi-Reel). ISO3082DWR is recommended for new designs due to its Active status.

Q: Is MAX14948EWE+T a suitable replacement?

A: MAX14948EWE+T provides RS422/RS485 isolation in the same 16-SOIC package with compatible operating temperature and supply voltage ranges. However, MAX14948EWE+T features a 3-channel unidirectional configuration with 500kbps data rate and 5000Vrms isolation, whereas ISO3082DWG4 is a 2/2 half-duplex transceiver with 200kbps data rate. Substitution requires circuit-level design verification to confirm functional compatibility with the target application.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. ISO3082DW, ISO3082DWR, and MAX14948EWE+T are all ROHS3 compliant, matching the compliance status of ISO3082DWG4.

Q: What packaging options are available for substitute parts?

A: ISO3082DW is supplied in Tube packaging. ISO3082DWR is available in Cut Tape and Digi-Reel formats. MAX14948EWE+T is supplied in Tape & Reel format. All parts use the 16-SOIC package form factor.

Q: Why is ISO3082DWG4 marked as Obsolete?

A: ISO3082DWG4 has reached end-of-life status. Texas Instruments continues to offer equivalent functionality through ISO3082DW (Last Time Buy) and ISO3082DWR (Active), which are recommended for procurement and new design implementations.