LM358AN Equivalent & Substitute Parts

Part Overview

The LM358AN is a general-purpose operational amplifier featuring two independent circuits in an 8-DIP package. This device is classified as obsolete and is designed for applications requiring dual-channel amplification with low input bias current and moderate bandwidth characteristics. Due to its obsolete status, identifying functionally equivalent substitute parts is essential for design continuity and procurement planning. The LM358AN/NOPB represents the active production equivalent with enhanced compliance characteristics.

Substiute Parts

LM358AN

Texas InstrumentsIn Stock: 4306LM358AN Datasheet

Current PartRFQ

LM358AN/NOPB

Texas InstrumentsIn Stock: 20382LM358AN/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM358AN is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 2 (dual-channel configuration)
• Gain Bandwidth Product: 1 MHz minimum
• Current - Input Bias: 45 nA
• Voltage - Input Offset: 2 mV
• Current - Supply: 1 mA
• Current - Output / Channel: 40 mA
• Voltage - Supply Span: 3 V to 32 V
• Operating Temperature Range: 0°C to 70°C

Mechanical Equivalence Criteria:

• Package / Case: 8-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• Supplier Device Package: 8-PDIP

The LM358AN/NOPB satisfies all electrical and mechanical parameters required for direct substitution. The primary distinction is product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

LM358AN/NOPB as Primary Substitute:

The LM358AN/NOPB is the direct functional equivalent of the obsolete LM358AN. Both devices share identical electrical specifications across all critical parameters: dual general-purpose amplifier configuration, input bias current of 45 nA, input offset voltage of 2 mV, supply current of 1 mA, output current of 40 mA per channel, and supply voltage range of 3 V to 32 V. Both operate across the 0°C to 70°C temperature range and utilize the same 8-DIP through-hole package.

Compliance Advantage:

The LM358AN/NOPB carries ROHS3 compliance certification, whereas the original LM358AN is RoHS non-compliant. For applications subject to regulatory requirements or procurement policies mandating RoHS compliance, the LM358AN/NOPB is the appropriate selection.

Product Status Consideration:

The LM358AN is classified as obsolete, indicating discontinued production and limited availability. The LM358AN/NOPB maintains active production status with significantly higher inventory availability (20,314 pieces versus 4,200 pieces), ensuring supply chain continuity for new designs and production runs.

Packaging Format:

The LM358AN/NOPB is supplied in tube packaging, whereas the original LM358AN packaging format is not specified. Both are compatible with through-hole assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the LM358AN/NOPB directly replace the LM358AN in existing designs?

A: Yes. The LM358AN/NOPB is electrically and mechanically equivalent to the LM358AN across all specified parameters. Both devices feature identical dual general-purpose amplifier configurations, input bias current, input offset voltage, supply current, output current, and supply voltage range. The 8-DIP through-hole package is identical, enabling direct substitution without circuit modification.

Q: What is the significance of the "/NOPB" suffix in the LM358AN/NOPB part number?

A: The "/NOPB" suffix indicates "No Plumbum" (lead-free) packaging, reflecting RoHS3 compliance. This designation distinguishes the part from legacy versions and confirms adherence to lead-free manufacturing standards.

Q: Are there differences in the Gain Bandwidth Product between the LM358AN and LM358AN/NOPB?

A: The LM358AN specifies a Gain Bandwidth Product of 1.1 MHz, while the LM358AN/NOPB specifies 1 MHz. This 0.1 MHz difference falls within typical manufacturing tolerance ranges for general-purpose operational amplifiers and does not affect functional equivalence for standard applications within the specified operating parameters.

Q: Why is the LM358AN classified as obsolete?

A: The LM358AN has been discontinued by the manufacturer. The LM358AN/NOPB represents the active production equivalent, incorporating modern compliance standards and manufacturing processes. For new designs and ongoing production, the LM358AN/NOPB is the recommended selection.

Q: What are the key electrical parameters that determine substitution compatibility?

A: Substitution compatibility is determined by equivalence across: amplifier type (general purpose), number of circuits (2), input bias current (45 nA), input offset voltage (2 mV), supply current (1 mA), output current per channel (40 mA), and supply voltage range (3 V to 32 V). All these parameters are identical between the LM358AN and LM358AN/NOPB.

Q: Is the 8-DIP package format critical for substitution?

A: Yes. Both the LM358AN and LM358AN/NOPB utilize the 8-DIP (0.300", 7.62mm) through-hole package. This package format is essential for mechanical compatibility with existing printed circuit board layouts and assembly processes. Alternative package formats would require circuit board redesign.

Q: What inventory considerations should influence part selection?

A: The LM358AN/NOPB has significantly higher inventory availability (20,314 pieces) compared to the obsolete LM358AN (4,200 pieces). For production planning and supply chain reliability, the LM358AN/NOPB is the preferred selection to ensure consistent availability and reduce procurement risk.