LM258AM Equivalent & Substitute Parts

Part Overview

The LM258AM is a general-purpose operational amplifier featuring two circuits in an 8-SOIC surface mount package. This device is classified as obsolete, with 3300 pieces available in current inventory. The LM258AM operates across a supply voltage range of 3V to 32V and is rated for temperatures from -25°C to 85°C. Due to its obsolete status, identifying equivalent and substitute parts is necessary for ongoing design support, production continuity, and long-term component availability assurance.

Key Parameters

Parameter	LM258AM Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Current - Input Bias	40	nA
Voltage - Input Offset	1	mV
Current - Supply	800	µA
Current - Output / Channel	30	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	32	V
Operating Temperature	-25 to 85	°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 of the LM258AM is determined by strict alignment of electrical and mechanical parameters. The following criteria establish valid substitution relationships:

Primary Substitution Criteria:

Package type: 8-SOIC (0.154", 3.90mm Width)
Mounting type: Surface Mount
Number of circuits: 2
Amplifier type: General Purpose
Voltage supply range compatibility: Minimum 3V, Maximum ≥32V
RoHS3 compliance and MSL rating

Secondary Compatibility Parameters:

Current - Input Bias: ≤45 nA
Voltage - Input Offset: ≤7 mV
Current - Output / Channel: ≥30 mA
Operating temperature range must encompass or extend the original range

Substitute parts are grouped into two categories: direct equivalents from the same manufacturer (onsemi) and cross-manufacturer alternatives that meet all electrical and mechanical requirements within the specified parameter tolerances.

Parameter Comparison

Part Number	Manufacturer	Product Status	Input Bias (nA)	Input Offset (mV)	Supply Current (µA)	Output Current (mA)	Supply Max (V)	Temp Range (°C)	Inventory
LM258AM	onsemi	Obsolete	40	1	800	30	32	-25 to 85	3300
LM258DR2G	onsemi	Active	45	2	800	40	32	-25 to 85	505200
LM2904DR2G	onsemi	Active	45	2	800	40	26	-40 to 85	505300
LM2904VDR2G	onsemi	Active	45	7	1500	40	32	-40 to 125	48685
LM358ADR2G	onsemi	Active	45	2	800	40	32	0 to 70	45400
LM358DR2G	onsemi	Active	45	2	800	40	32	0 to 70	492200
MC34072ADR2G	onsemi	Active	100	0.5	1900	30	44	0 to 70	2166
MC34072DR2G	onsemi	Active	100	1	1900	30	44	0 to 70	30100
MC34072VDR2G	onsemi	Active	100	1	1900	30	44	-40 to 125	6588
NCV2904DR2G	onsemi	Active	45	7	1500	40	32	-40 to 125	655300
AP4310AMTR-AG1	Diodes Incorporated	Active	20	0.5	150	40	36	-40 to 105	1390

Engineering Selection Recommendations

Direct Equivalent (Highest Compatibility): LM258DR2G is the active production equivalent of the LM258AM. Both share the same base product number (LM258), identical package specifications, and matching supply voltage range (3V to 32V). The LM258DR2G maintains the same operating temperature minimum (-25°C) and extends the maximum to 85°C. This part is ROHS3 compliant with MSL rating of 1 (Unlimited) and carries 505,200 units in inventory, ensuring long-term availability.

Primary Substitutes (onsemi Manufacturer): LM2904DR2G and LM2904VDR2G are functionally equivalent general-purpose dual operational amplifiers in 8-SOIC packaging. LM2904DR2G operates to -40°C with a maximum supply voltage of 26V, suitable for applications not requiring the full 32V specification. LM2904VDR2G extends the operating temperature to -40°C to 125°C and maintains the 32V maximum supply voltage, providing enhanced thermal performance for extended temperature applications.

LM358ADR2G and LM358DR2G are alternative general-purpose dual op-amps with identical electrical specifications to LM258DR2G but with a narrower operating temperature range (0°C to 70°C). These are suitable for commercial-grade applications where the extended low-temperature performance of the LM258AM is not required. LM358DR2G has the highest inventory availability at 492,200 units.

Enhanced Performance Alternatives (onsemi Manufacturer): MC34072ADR2G, MC34072DR2G, and MC34072VDR2G offer improved performance characteristics including higher slew rate (13V/µs), higher gain bandwidth product (4.5 MHz), and lower input offset voltage (0.5mV to 1mV). These parts are suitable for applications requiring superior frequency response and precision. MC34072VDR2G extends the operating temperature to -40°C to 125°C.

Cross-Manufacturer Alternative: AP4310AMTR-AG1 (Diodes Incorporated) is a general-purpose dual op-amp in 8-SOIC packaging with superior specifications including lower input bias current (20nA), lower input offset voltage (0.5mV), and extended supply voltage range to 36V. This part operates from -40°C to 105°C and is ROHS3 compliant. Inventory availability is limited at 1,390 units.

Selection Criteria by Application:

For direct replacement with maximum availability: LM258DR2G
For extended temperature range (-40°C to 125°C): LM2904VDR2G or NCV2904DR2G
For commercial temperature range (0°C to 70°C): LM358DR2G
For enhanced performance specifications: MC34072DR2G or MC34072VDR2G
For superior precision and low bias current: AP4310AMTR-AG1

All recommended substitutes maintain ROHS3 compliance and MSL rating of 1 (Unlimited), ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can LM258DR2G be used as a direct replacement for LM258AM? A: Yes. LM258DR2G is the active production equivalent of LM258AM. Both parts share identical package specifications (8-SOIC), supply voltage range (3V to 32V), and core electrical characteristics. The primary difference is product status: LM258AM is obsolete while LM258DR2G is in active production with significantly higher inventory availability (505,200 units).

Q: What is the difference between LM258DR2G and LM2904DR2G? A: Both are dual general-purpose operational amplifiers in 8-SOIC packaging from onsemi. The key difference is maximum supply voltage: LM258DR2G supports 32V while LM2904DR2G supports 26V. For applications requiring the full 32V supply range, LM258DR2G is the appropriate choice. LM2904DR2G is suitable for applications with maximum supply requirements of 26V or less.

Q: Why would I choose LM2904VDR2G over LM258DR2G? A: LM2904VDR2G extends the operating temperature range to -40°C to 125°C compared to LM258DR2G's -25°C to 85°C range. This makes LM2904VDR2G suitable for applications requiring operation at lower temperatures or in high-temperature environments. Both maintain the 32V maximum supply voltage and 8-SOIC package specification.

Q: Are MC34072 series parts compatible with LM258AM applications? A: MC34072 series parts are mechanically compatible (8-SOIC package) and functionally compatible as dual general-purpose operational amplifiers. However, they offer enhanced performance specifications including higher slew rate (13V/µs vs. not specified for LM258AM), higher gain bandwidth product (4.5 MHz vs. not specified), and lower input offset voltage (0.5mV to 1mV vs. 1mV). These parts are suitable for applications where improved frequency response and precision are beneficial. Operating temperature ranges vary by variant.

Q: What is the advantage of AP4310AMTR-AG1 over onsemi alternatives? A: AP4310AMTR-AG1 (Diodes Incorporated) offers superior electrical specifications including lower input bias current (20nA vs. 40-45nA), lower input offset voltage (0.5mV vs. 1-2mV), and extended supply voltage range to 36V. It also features lower supply current consumption (150µA vs. 800-1500µA), making it advantageous for low-power applications. Operating temperature range extends to -40°C to 105°C. The trade-off is lower inventory availability (1,390 units).

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed are ROHS3 compliant and carry MSL rating of 1 (Unlimited), except AP4310AMTR-AG1 which has MSL rating of 3 (168 Hours). This ensures compatibility with standard manufacturing processes and storage requirements.

Q: Can I use LM358DR2G in place of LM258AM? A: LM358DR2G is mechanically and functionally compatible with LM258AM in 8-SOIC packaging. However, the operating temperature range is narrower: 0°C to 70°C versus LM258AM's -25°C to 85°C. LM358DR2G is suitable for commercial-grade applications where extended low-temperature performance is not required. For applications requiring the full -25°C to 85°C range, LM258DR2G or LM2904DR2G are more appropriate.

Q: What inventory considerations should I account for? A: LM258DR2G and LM358DR2G offer the highest inventory availability (505,200 and 492,200 units respectively), ensuring long-term supply security. LM2904VDR2G and NCV2904DR2G provide moderate availability (48,685 and 655,300 units). AP4310AMTR-AG1 has limited availability at 1,390 units. For production planning, parts with higher inventory levels provide greater supply chain stability.

Q: Are there any package differences between substitute parts? A: All substitute parts use 8-SOIC (0.154", 3.90mm Width) surface mount packaging, maintaining mechanical compatibility with LM258AM. Supplier device package designations may vary slightly (8-SOIC, 8-SO) but refer to the same physical package specification. All parts are suitable for standard surface mount assembly processes.

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