LM358MX Equivalent & Substitute Parts Reference

Part Overview

The LM358MX is a general-purpose operational amplifier manufactured by Texas Instruments, featuring dual-channel configuration in 8-SOIC surface mount packaging. This device is classified as Last Time Buy, indicating discontinued production status. The LM358MX operates across a wide supply voltage range of 3V to 32V with low input bias current of 45 nA and input offset voltage of 2 mV, making it suitable for general analog signal processing applications.

Due to Last Time Buy status, identifying equivalent and substitute parts is essential for design continuity and long-term component availability. Substitute parts must maintain compatibility across electrical specifications, package dimensions, and thermal operating ranges to ensure functional equivalence in existing circuit designs.

Key Parameters

Parameter	LM358MX Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	Channels
Current - Input Bias	45	nA
Voltage - Input Offset	2	mV
Current - Supply	1	mA
Current - Output / Channel	30	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	32	V
Operating Temperature	0 to 70	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution logic for the LM358MX is based on the following critical parameters that must remain within acceptable tolerances:

Primary Compatibility Criteria:

Dual-channel general-purpose operational amplifier configuration
Input bias current: 45 nA (maximum allowable deviation ±25 nA)
Input offset voltage: 2 mV (maximum allowable deviation ±3 mV)
Supply voltage range: minimum 3V, maximum 32V
Output current per channel: minimum 30 mA
Operating temperature range: minimum coverage of 0°C to 70°C
Package type: 8-SOIC surface mount with compatible pinout
RoHS3 compliance and MSL Level 1 rating

Substitution Groups:

Group 1: Direct Texas Instruments Equivalents Parts LM358MX/NOPB maintain identical electrical specifications with enhanced output current capability (40 mA vs. 30 mA) and Active product status, providing superior availability and long-term support.

Group 2: Cross-Manufacturer Standard Performance Parts LM358S-13 (Diodes Incorporated) and BA10358F-E1, BA10358F-E2 (Rohm Semiconductor) provide equivalent dual-channel general-purpose amplification with compatible supply ranges and thermal specifications, though with variations in gain-bandwidth product and slew rate.

Group 3: Enhanced Performance Alternatives Parts BA2904F-E2, BA2904SF-E2, and BA3472F-E2 offer improved specifications including lower input bias current (20 nA), extended temperature ranges, and higher slew rates, suitable for applications requiring superior performance margins.

Group 4: Automotive-Grade Qualified Alternatives Parts LM158DT, LM258ADT, and LM258AYDT feature AEC-Q100 automotive qualification with extended temperature ranges (-40°C to 125°C or -55°C to 125°C), appropriate for automotive and industrial applications requiring reliability certification.

Parameter Comparison

Part Number	Manufacturer	Input Bias (nA)	Input Offset (mV)	Supply Min (V)	Supply Max (V)	Output/Ch (mA)	Temp Range (°C)	Package	Status
LM358MX	Texas Instruments	45	2	3	32	30	0 to 70	8-SOIC	Last Time Buy
LM358MX/NOPB	Texas Instruments	45	2	3	32	40	0 to 70	8-SOIC	Active
LM358S-13	Diodes Incorporated	45	2	3	32	40	0 to 70	8-SOIC	Active
BA10358F-E1	Rohm Semiconductor	45	2	3	32	20	-40 to 85	8-SOIC	Active
BA10358F-E2	Rohm Semiconductor	45	2	3	32	20	-40 to 85	8-SOIC	Active
BA2904F-E2	Rohm Semiconductor	20	2	3	32	30	-40 to 125	8-SOIC	Active
BA2904SF-E2	Rohm Semiconductor	20	2	3	32	30	-40 to 105	8-SOIC	Active
BA3472F-E2	Rohm Semiconductor	100	1.5	3	36	30	-40 to 85	8-SOIC	Active
LM158DT	STMicroelectronics	20	5	3	30	40	-55 to 125	8-SOIC	Active
LM258ADT	STMicroelectronics	20	1	3	30	40	-40 to 105	8-SOIC	Active
LM258AYDT	STMicroelectronics	20	1	3	30	40	-40 to 105	8-SOIC	Active

Engineering Selection Recommendations

For Direct Replacement with Identical Specifications: LM358MX/NOPB is the primary recommended substitute, maintaining identical electrical characteristics while offering Active product status and superior long-term availability. This part is manufactured by the original designer (Texas Instruments) and provides the most seamless transition from discontinued LM358MX inventory.

For Standard Industrial Applications: LM358S-13 (Diodes Incorporated) and BA10358F-E2 (Rohm Semiconductor) provide equivalent performance with Active status and high inventory levels. Both parts maintain the critical electrical parameters (45 nA input bias, 2 mV offset, 3V to 32V supply range) required for general-purpose amplification circuits.

For Extended Temperature Range Requirements: BA2904F-E2 and BA2904SF-E2 extend operating temperature to -40°C to 125°C and -40°C to 105°C respectively, with improved input bias current (20 nA). These parts are suitable for industrial and environmental applications requiring broader thermal coverage than the original LM358MX specification.

For Automotive and Reliability-Critical Applications: LM258ADT and LM258AYDT feature AEC-Q100 automotive qualification with -40°C to 105°C operating range, lower input bias current (20 nA), and superior input offset voltage (1 mV). These parts are appropriate for automotive, medical, and mission-critical applications requiring formal reliability certification.

For High-Performance Applications: BA3472F-E2 offers enhanced specifications including 10V/µs slew rate, 4 MHz gain-bandwidth product, and extended supply voltage to 36V, suitable for applications requiring faster signal processing and wider dynamic range.

Compliance Considerations: All recommended substitute parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with modern manufacturing processes and long-term storage requirements. All parts are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Frequently Asked Questions (FAQ)

Q: Can LM358MX/NOPB be used as a direct drop-in replacement for LM358MX?

A: Yes. LM358MX/NOPB maintains identical electrical specifications including 45 nA input bias current, 2 mV input offset voltage, and 3V to 32V supply range. The primary difference is enhanced output current capability (40 mA vs. 30 mA per channel) and Active product status. The 8-SOIC package pinout is identical, enabling direct PCB substitution.

Q: What is the difference between BA10358F-E1 and BA10358F-E2?

A: Both parts are manufactured by Rohm Semiconductor with identical electrical specifications. The primary difference is packaging: BA10358F-E1 is supplied in Tape & Reel format, while BA10358F-E2 is supplied in Cut Tape & Digi-Reel format. Electrical performance and package dimensions are equivalent.

Q: Why do some substitute parts have lower input bias current (20 nA vs. 45 nA)?

A: Lower input bias current represents improved performance and is acceptable for substitution. Parts such as BA2904F-E2, LM258ADT, and LM158DT feature 20 nA input bias current, which is superior to the original 45 nA specification. This improvement reduces input current errors in high-impedance circuits and is backward-compatible with designs expecting 45 nA maximum.

Q: Are automotive-qualified parts (LM258ADT, LM158DT) suitable for non-automotive applications?

A: Yes. Automotive-qualified parts with AEC-Q100 certification exceed standard industrial reliability requirements. These parts are suitable for any application requiring equivalent or superior performance specifications. The extended temperature range (-40°C to 125°C or -55°C to 125°C) provides additional margin for demanding industrial and environmental applications.

Q: What is the significance of the 8-SOIC package dimension variations (0.154" vs. 0.173" width)?

A: Both dimensions represent standard 8-SOIC packages with identical pinout and electrical compatibility. The 0.154" width (3.90mm) is the original narrow-body SOIC specification used by LM358MX. The 0.173" width (4.40mm) is a wider-body variant used by some manufacturers. Both are mechanically compatible with standard 8-SOIC PCB footprints, though PCB layout should accommodate the wider body dimension if applicable.

Q: Can BA3472F-E2 be used in place of LM358MX despite higher input bias current (100 nA)?

A: BA3472F-E2 is suitable for applications where enhanced performance is beneficial or required. The 100 nA input bias current is higher than LM358MX (45 nA), which may introduce additional input current errors in high-impedance circuits. However, the superior slew rate (10V/µs vs. unspecified), higher gain-bandwidth product (4 MHz), and extended supply voltage (36V max) make this part appropriate for high-speed signal processing applications where the trade-off is acceptable.

Q: What is the difference between LM258ADT and LM258AYDT?

A: Both parts are manufactured by STMicroelectronics with identical electrical specifications and operating temperature range (-40°C to 105°C). The primary difference is packaging format: LM258ADT is supplied in Cut Tape & Digi-Reel format, while LM258AYDT is supplied in Tape & Reel format. Electrical performance and package dimensions are equivalent.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with modern manufacturing processes and regulatory requirements. All parts are REACH unaffected, meeting current environmental standards.

Q: What supply voltage range should be verified when substituting parts?

A: The original LM358MX operates from 3V to 32V. Most substitute parts maintain this range. However, LM158DT and LM258ADT/LM258AYDT have a maximum supply voltage of 30V (not 32V). For applications requiring operation at 31V to 32V, LM358MX/NOPB, LM358S-13, BA10358F-E1/E2, BA2904F-E2, BA2904SF-E2, and BA3472F-E2 are appropriate choices. Verify circuit supply voltage requirements before final part selection.

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