LM2904DR2GH Equivalent & Substitute Parts

Part Overview

The LM2904DR2GH is a general-purpose operational amplifier featuring two independent circuits in a single integrated circuit package. Manufactured by onsemi, this device is classified as obsolete and is no longer recommended for new designs. The LM2904DR2GH operates across a wide supply voltage range of 3V to 26V and is suitable for applications requiring dual-channel amplification with moderate performance requirements.

Due to its obsolete status, identifying functionally equivalent substitute parts is necessary for design continuity, production support, and long-term component availability. Substitute parts must maintain electrical compatibility across critical parameters including supply voltage range, input bias current, input offset voltage, output current capability, and operating temperature range.

Substiute Parts

LM2904DR2GH

onsemiIn Stock: 755LM2904DR2GH Datasheet

Current PartRFQ

LM2904DR

Rohm SemiconductorIn Stock: 291899LM2904DR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LM2904DR2GH are identified based on strict electrical and mechanical compatibility criteria. The following parameters define acceptable substitution:

Critical Compatibility Parameters:

• Dual-circuit configuration (2 independent operational amplifiers)
• Supply voltage range: minimum 3V, maximum 26V
• Output current capability: 40 mA per channel
• Input bias current: within acceptable tolerance for general-purpose applications
• Input offset voltage: within acceptable tolerance for general-purpose applications
• Operating temperature range: minimum -40°C, maximum 85°C or higher
• Moisture sensitivity level: MSL 1 (Unlimited)
• REACH compliance status: REACH Unaffected

The LM2904DR substitute part maintains all critical electrical parameters within the specified ranges, ensuring functional equivalence for circuit-level applications. Differences in slew rate, gain bandwidth product, and supply current represent performance variations that do not preclude substitution in general-purpose amplifier applications where these parameters are not design-limiting factors.

Parameter Comparison

Engineering Selection Recommendations

The LM2904DR manufactured by Rohm Semiconductor serves as a direct electrical substitute for the obsolete LM2904DR2GH. Both devices maintain identical supply voltage specifications (3V to 26V), output current capability (40 mA per channel), and dual-circuit configuration. The substitute part demonstrates superior performance characteristics in input bias current (20 nA versus 45 nA) and extended maximum operating temperature (125°C versus 85°C), providing additional design margin in temperature-sensitive applications.

Both the main part and substitute are classified as REACH Unaffected and maintain MSL 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent handling and storage requirements. The substitute part carries a "Not For New Designs" status, indicating limited long-term availability. For applications requiring extended component lifecycle support, evaluation of alternative general-purpose dual operational amplifier solutions with active production status is recommended.

The LM2904DR is available in 8-SOIC surface-mount packaging with Cut Tape and Digi-Reel packaging options, providing standard integration pathways for manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can the LM2904DR be used as a direct replacement for the LM2904DR2GH in existing designs?

A: Yes. Both devices maintain identical electrical specifications for supply voltage range (3V to 26V), output current per channel (40 mA), and dual-circuit configuration. The LM2904DR demonstrates equivalent or superior performance in input bias current and extended operating temperature range. No circuit modifications are required for substitution.

Q: What are the key differences between the LM2904DR2GH and LM2904DR?

A: The primary differences are manufacturer (onsemi versus Rohm Semiconductor), product status (Obsolete versus Not For New Designs), and performance enhancements in the substitute. The LM2904DR exhibits lower input bias current (20 nA versus 45 nA) and higher maximum operating temperature (125°C versus 85°C). Supply voltage range, output current capability, and dual-circuit configuration remain identical.

Q: Are there packaging differences between these parts?

A: The LM2904DR is specified in 8-SOIC (0.154", 3.90mm Width) surface-mount packaging with Cut Tape and Digi-Reel packaging options. Packaging specifications for the LM2904DR2GH are not provided in the available data. Verification of package compatibility with existing PCB designs is necessary before implementation.

Q: What is the significance of the "Not For New Designs" status on the LM2904DR?

A: This status indicates that the substitute part has limited production commitment and may face future availability constraints. While functionally equivalent and suitable for replacement applications, long-term design strategies should consider evaluation of actively produced general-purpose dual operational amplifier alternatives for new product development.

Q: Are the moisture sensitivity and REACH compliance specifications identical?

A: Yes. Both the LM2904DR2GH and LM2904DR maintain MSL 1 (Unlimited) moisture sensitivity ratings and REACH Unaffected compliance status. Handling, storage, and regulatory requirements are equivalent between the two parts.

Q: What applications are suitable for the LM2904DR as a substitute?

A: The LM2904DR is suitable for general-purpose amplifier applications including signal conditioning, buffering, summing amplifiers, and precision measurement circuits where the specified electrical parameters (supply voltage, output current, input offset voltage, and input bias current) meet application requirements. The extended operating temperature range of the substitute part provides additional capability for temperature-sensitive environments.