LM258DR2 Equivalent & Substitute Parts

Part Overview

The LM258DR2 is a general-purpose dual operational amplifier manufactured by onsemi in 8-SOIC surface mount packaging. This device is classified as obsolete product status, which necessitates identification of functionally equivalent alternatives for ongoing design requirements and procurement needs. The LM258DR2 operates across a supply voltage range of 3V to 32V with dual-channel configuration, making it suitable for low-power analog signal processing applications. Due to its obsolete status, equivalent substitute parts with active product status are required to ensure long-term design sustainability and component availability.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Gain Bandwidth Product	1 MHz	MHz
Current - Input Bias	45 nA	nA
Voltage - Input Offset	2 mV	mV
Current - Supply (x2 Channels)	800 µA	µA
Current - Output / Channel	40 mA	mA
Voltage - Supply Span (Min)	3 V	V
Voltage - Supply Span (Max)	32 V	V
Operating Temperature	-25°C ~ 85°C	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	RoHS non-compliant	—

Substitute Part Grouping Explanation

Substitute parts for the LM258DR2 are classified into two functional categories based on electrical parameter compatibility:

Category 1: Direct Electrical Equivalents (General Purpose Amplifiers) These parts maintain identical or near-identical electrical specifications to the LM258DR2, including gain bandwidth product of 1 MHz, input bias current of 45 nA or lower, input offset voltage of 2 mV or lower, and supply voltage range compatibility from 3V minimum. Parts in this category include LM258DR2G (onsemi), AS358MTR-E1, and AS358MTR-G1 (Diodes Incorporated). These substitutes are pin-compatible and functionally interchangeable in applications where the original LM258DR2 specifications are required.

Category 2: Enhanced Performance Alternatives (J-FET Amplifiers) These parts offer superior electrical characteristics compared to the LM258DR2, including significantly lower input bias current (2 pA versus 45 nA), lower input offset voltage (500 µV to 750 µV versus 2 mV), and higher gain bandwidth product (1.4 MHz versus 1 MHz). The ADA4062 series from Analog Devices (ADA4062-2ARZ, ADA4062-2ARZ-R7, ADA4062-2ARZ-RL, ADA4062-2BRZ, ADA4062-2BRZ-R7) operates with higher minimum supply voltage (8V versus 3V) and extended operating temperature range (-40°C to 125°C versus -25°C to 85°C). These parts are suitable for applications requiring improved precision and lower noise performance.

Category 3: General Purpose Alternatives with Modified Specifications BA3404F-E2 (Rohm Semiconductor) and BA4558FJ-GE2 (Rohm Semiconductor) provide general-purpose dual amplifier functionality with variations in slew rate, gain bandwidth product, and supply current specifications. These parts maintain 8-SOIC or equivalent package compatibility and are suitable for applications where exact parameter matching is not critical.

Key Parameters Determining Substitution Eligibility:

Dual-circuit configuration (2 circuits required)
8-SOIC surface mount package (0.154" width, 3.90mm)
Gain bandwidth product ≥ 1 MHz
Input bias current ≤ 45 nA
Input offset voltage ≤ 2 mV
Output current per channel ≥ 40 mA
Supply voltage range minimum ≤ 3V, maximum ≥ 32V

Parameter Comparison

Parameter	LM258DR2	LM258DR2G	ADA4062-2ARZ	AS358MTR-E1	BA3404F-E2	BA4558FJ-GE2
Manufacturer	onsemi	onsemi	Analog Devices	Diodes Inc.	Rohm Semi.	Rohm Semi.
Product Status	Obsolete	Active	Active	Active	Active	Active
Amplifier Type	General Purpose	General Purpose	J-FET	General Purpose	General Purpose	General Purpose
Number of Circuits	2	2	2	2	2	2
Gain Bandwidth Product (MHz)	1	1	1.4	—	1.2	2
Current - Input Bias (nA)	45	45	0.002	20	70	60
Voltage - Input Offset (mV)	2	2	0.75	2	2	0.5
Current - Supply (µA, x2 Ch)	800	800	165	700	2000	3000
Current - Output / Channel (mA)	40	40	20	40	30	—
Voltage - Supply Span Min (V)	3	3	8	3	4	8
Voltage - Supply Span Max (V)	32	32	36	36	36	30
Operating Temperature (°C)	-25 ~ 85	-25 ~ 85	-40 ~ 125	-40 ~ 85	-40 ~ 85	-40 ~ 85
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: LM258DR2G

The LM258DR2G from onsemi is the direct functional equivalent of the LM258DR2. This part maintains identical electrical specifications including 1 MHz gain bandwidth product, 45 nA input bias current, 2 mV input offset voltage, 800 µA supply current, and 40 mA output current per channel. The LM258DR2G operates across the same supply voltage range (3V to 32V) and temperature range (-25°C to 85°C). The primary distinction is product status: LM258DR2G is active, ensuring long-term availability and procurement continuity. LM258DR2G is ROHS3 compliant, addressing modern regulatory requirements. Packaging options include Cut Tape (CT) and Digi-Reel formats with 505,200 units in stock, providing reliable supply chain support.

Secondary Recommendation: AS358MTR-E1 or AS358MTR-G1

The AS358 series from Diodes Incorporated provides general-purpose dual amplifier functionality with active product status and ROHS3 compliance. These parts maintain compatibility with the LM258DR2 across critical parameters: dual-circuit configuration, 8-SOIC package, 40 mA output current per channel, and 3V to 36V supply voltage range. The AS358 series exhibits lower input bias current (20 nA versus 45 nA) and slightly lower supply current (700 µA versus 800 µA), representing marginal performance improvements. Operating temperature range extends to -40°C minimum. AS358MTR-E1 is available in Cut Tape & Digi-Reel packaging (264,200 units in stock), while AS358MTR-G1 is available in Tape & Reel format (300,300 units in stock).

Alternative for Enhanced Precision: ADA4062-2ARZ Series

The ADA4062-2ARZ series from Analog Devices is suitable for applications requiring superior precision characteristics. These J-FET amplifiers provide dramatically lower input bias current (2 pA versus 45 nA) and lower input offset voltage (500 µV to 750 µV versus 2 mV). The ADA4062 series operates with higher minimum supply voltage (8V versus 3V) and extended operating temperature range (-40°C to 125°C). These parts are appropriate only for designs where the higher minimum supply voltage is acceptable and where the enhanced precision characteristics provide functional benefit. All ADA4062 variants are ROHS3 compliant and active products.

Compliance Considerations:

All recommended substitute parts are ROHS3 compliant, addressing modern environmental and regulatory requirements. The original LM258DR2 is RoHS non-compliant. All substitute parts maintain REACH Unaffected status and EAR99 export classification, consistent with the original part.

Frequently Asked Questions (FAQ)

Q1: Can LM258DR2G be used as a direct replacement for LM258DR2?

Yes. The LM258DR2G is electrically and functionally identical to the LM258DR2. Both parts share identical specifications for gain bandwidth product (1 MHz), input bias current (45 nA), input offset voltage (2 mV), supply current (800 µA per dual channels), output current (40 mA per channel), and supply voltage range (3V to 32V). The 8-SOIC package pinout is identical. The primary difference is product status: LM258DR2G is active, while LM258DR2 is obsolete. LM258DR2G is the recommended direct replacement.

Q2: What is the difference between LM258DR2G and AS358MTR-E1?

Both parts are general-purpose dual amplifiers in 8-SOIC packages with active product status and ROHS3 compliance. The AS358MTR-E1 exhibits lower input bias current (20 nA versus 45 nA) and marginally lower supply current (700 µA versus 800 µA). The AS358 series extends the minimum operating temperature to -40°C (versus -25°C for LM258DR2G) and maximum supply voltage to 36V (versus 32V). Both parts maintain 40 mA output current per channel and 1 MHz or higher gain bandwidth product. Selection between these parts depends on whether the lower input bias current and extended temperature range of the AS358 provide functional benefit for the specific application.

Q3: Why would I select ADA4062-2ARZ instead of LM258DR2G?

The ADA4062-2ARZ is selected when application requirements demand superior precision characteristics. The ADA4062 provides input bias current of 2 pA (versus 45 nA for LM258DR2G) and input offset voltage of 500 µV to 750 µV (versus 2 mV for LM258DR2G). These improvements are significant for precision analog signal processing, instrumentation, and low-noise applications. The ADA4062 operates with higher minimum supply voltage (8V versus 3V) and extended operating temperature range (-40°C to 125°C versus -25°C to 85°C). The ADA4062 is appropriate only for designs where the 8V minimum supply voltage is acceptable and where the enhanced precision characteristics provide measurable functional benefit.

Q4: Are all substitute parts pin-compatible with LM258DR2?

Yes. All substitute parts listed maintain 8-SOIC package configuration with 0.154" (3.90mm) width. The pinout for dual operational amplifiers in 8-SOIC packages is standardized across manufacturers. All listed substitutes are pin-compatible with the LM258DR2 and can be used as direct physical replacements on printed circuit boards designed for the original part.

Q5: What packaging options are available for substitute parts?

Substitute parts are available in multiple packaging formats: Cut Tape (CT), Digi-Reel, Tape & Reel (TR), and Tube. LM258DR2G is available in Cut Tape and Digi-Reel formats. AS358MTR-E1 is available in Cut Tape & Digi-Reel format. AS358MTR-G1 is available in Tape & Reel format. ADA4062 variants are available in Tube, Cut Tape & Digi-Reel, and Tape & Reel formats depending on specific part number suffix. Selection of packaging format depends on manufacturing process requirements and volume specifications.

Q6: Do all substitute parts meet RoHS compliance requirements?

Yes. All recommended substitute parts are ROHS3 compliant. The original LM258DR2 is RoHS non-compliant. If RoHS compliance is a design requirement, LM258DR2G, AS358MTR-E1, AS358MTR-G1, and all ADA4062 variants satisfy this requirement. All substitute parts maintain REACH Unaffected status.

Q7: What is the minimum supply voltage requirement for each substitute?

LM258DR2G and AS358 series require minimum supply voltage of 3V to 4V. ADA4062 series requires minimum supply voltage of 8V. If the application design operates at supply voltages below 8V, the ADA4062 series is not suitable. LM258DR2G or AS358 series are appropriate for low-voltage applications.

Q8: How do input bias current specifications affect circuit design?

Input bias current determines the magnitude of current flowing into the amplifier input terminals. Lower input bias current reduces errors in high-impedance circuits and minimizes offset voltage drift. The LM258DR2 and LM258DR2G specify 45 nA input bias current. The AS358 series specifies 20 nA, representing a 56% reduction. The ADA4062 series specifies 2 pA, representing a 99.996% reduction compared to LM258DR2. For applications with input impedances exceeding 1 MΩ, the lower input bias current of AS358 or ADA4062 provides measurable performance improvement.

Q9: Can substitute parts be mixed in the same design?

Yes. All substitute parts are functionally independent dual amplifiers. If a design uses multiple LM258DR2 devices, some can be replaced with LM258DR2G, others with AS358, and others with ADA4062, provided each part's specific electrical requirements are satisfied by the application circuit. However, mixing parts with different input bias currents or input offset voltages in precision analog circuits may introduce performance inconsistencies. Consistent part selection across a design is recommended for applications requiring matched amplifier characteristics.

Q10: What inventory levels are available for substitute parts?

LM258DR2G: 505,200 units in stock. AS358MTR-E1: 264,200 units in stock. AS358MTR-G1: 300,300 units in stock. ADA4062-2ARZ: 3,200 units in stock. ADA4062-2ARZ-R7: 17,915 units in stock. ADA4062-2ARZ-RL: 942 units in stock. ADA4062-2BRZ: 919 units in stock. ADA4062-2BRZ-R7: 2,378 units in stock. LM258DR2G and AS358 series offer significantly higher inventory levels, ensuring reliable long-term supply chain support for high-volume production requirements.

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