LM258N Equivalent & Substitute Parts

Part Overview

The LM258N is a general-purpose operational amplifier featuring two independent circuits in an 8-Mini DIP package. Manufactured by STMicroelectronics, this device operates across a wide supply voltage range of 3V to 30V and is qualified to AEC-Q100 automotive standards. The LM258N is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support, production continuity, and system maintenance. Substitute parts must maintain functional compatibility while meeting the electrical and mechanical requirements of the original application.

Key Parameters

Parameter	LM258N Value	Unit	Substitution Relevance
Amplifier Type	General Purpose	—	Core functional classification
Number of Circuits	2	Circuits	Must match for pin compatibility
Package / Case	8-DIP (0.300", 7.62mm)	—	Physical and electrical interface
Mounting Type	Through Hole	—	PCB assembly compatibility
Voltage - Supply Span (Min)	3 V	V	Minimum operating voltage
Voltage - Supply Span (Max)	30 V	V	Maximum operating voltage
Operating Temperature	-40°C ~ 105°C	°C	Thermal operating range
Slew Rate	0.6 V/µs	V/µs	Signal response speed
Gain Bandwidth Product	1.1 MHz	MHz	Frequency response capability
Current - Input Bias	20 nA	nA	Input impedance characteristic
Voltage - Input Offset	5 mV	mV	DC accuracy specification
Current - Supply	700 µA (x2 Channels)	µA	Power consumption per channel
Current - Output / Channel	40 mA	mA	Output drive capability
RoHS Status	ROHS3 Compliant	—	Environmental compliance
Grade	Automotive	—	Application qualification level

Substitute Part Grouping Explanation

Substitution of the LM258N is determined by strict adherence to the following criteria:

Mandatory Compatibility Parameters:

Amplifier Type: General Purpose (functional equivalence)
Number of Circuits: 2 (pin-count and functional requirement)
Package / Case: 8-DIP (0.300", 7.62mm) (physical and electrical interface)
Mounting Type: Through Hole (assembly compatibility)

Electrical Operating Range Parameters:

Voltage - Supply Span (Min): Must be ≤ 3V
Voltage - Supply Span (Max): Must be ≥ 30V
Operating Temperature: Must encompass or exceed -40°C to 105°C range

Performance Parameters (Secondary Consideration):

Slew Rate, Gain Bandwidth Product, Input Bias Current, Input Offset Voltage, Supply Current, and Output Current are provided for performance comparison but do not disqualify substitution if the mandatory parameters are met.

Compliance Parameters:

RoHS Status: ROHS3 Compliant (environmental requirement)
Mounting Type and Package must support direct PCB replacement

Substitute parts listed below satisfy all mandatory compatibility parameters and maintain electrical operating ranges suitable for LM258N applications.

Parameter Comparison

Parameter	LM258N	LM258P	LM258AP	LM1458N/NOPB	CA3240AEZ	LT1208CN8#PBF	LT1211CN8#PBF	LT1213CN8#PBF	LT1215CN8#PBF
Manufacturer	STMicroelectronics	Texas Instruments	Texas Instruments	Texas Instruments	Renesas Electronics	Linear Technology	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active
Number of Circuits	2	2	2	2	2	2	2	2	2
Package / Case	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Voltage - Supply Span (Min)	3 V	3 V	3 V	36 V	4 V	5 V	2.5 V	2.5 V	2.5 V
Voltage - Supply Span (Max)	30 V	32 V	32 V	36 V	36 V	30 V	36 V	36 V	36 V
Operating Temperature	-40°C ~ 105°C	-25°C ~ 85°C	-25°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C
Slew Rate	0.6 V/µs	0.3 V/µs	0.3 V/µs	0.5 V/µs	9 V/µs	400 V/µs	7 V/µs	12 V/µs	50 V/µs
Gain Bandwidth Product	1.1 MHz	700 kHz	700 kHz	1 MHz	4.5 MHz	45 MHz	14 MHz	28 MHz	23 MHz
Current - Input Bias	20 nA	20 nA	15 nA	200 nA	10 pA	4 µA	50 nA	90 nA	420 nA
Voltage - Input Offset	5 mV	3 mV	2 mV	1 mV	2 mV	1 mV	150 µV	150 µV	250 µV
Current - Supply	700 µA (x2)	500 µA (x2)	500 µA (x2)	3 mA (x2)	8 mA (x2)	7 mA (x2)	1.8 mA (x2)	3.4 mA (x2)	4.75 mA (x2)
Current - Output / Channel	40 mA	40 mA	40 mA	—	40 mA	40 mA	50 mA	50 mA	50 mA
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Inventory Status	1362 Pcs	34988 Pcs	3596 Pcs	22625 Pcs	1744 Pcs	1110 Pcs	944 Pcs	2300 Pcs	896 Pcs

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

LM258P and LM258AP (Texas Instruments) are the most direct substitutes for the LM258N. Both are active products from the same LM258 base product family, maintain identical package specifications (8-DIP), and support the required supply voltage range (3V to 32V). LM258P offers the largest inventory (34,988 units) and is recommended for high-volume applications. LM258AP provides a narrower operating temperature range (-25°C to 85°C) compared to the LM258N (-40°C to 105°C), which may limit use in extended temperature automotive applications.

Secondary Substitutes (Functional Equivalence with Extended Performance):

CA3240AEZ (Renesas Electronics Corporation) is a general-purpose dual operational amplifier in 8-DIP package with superior performance characteristics. It supports supply voltages from 4V to 36V and operates across -40°C to 85°C. The CA3240AEZ exhibits higher slew rate (9V/µs versus 0.6V/µs) and gain bandwidth product (4.5MHz versus 1.1MHz), making it suitable for applications requiring faster signal response. Input bias current is significantly lower (10pA versus 20nA), improving input impedance characteristics.

High-Performance Substitutes (Extended Bandwidth Applications):

The LT1211CN8#PBF and LT1213CN8#PBF (Analog Devices Inc.) are high-speed dual operational amplifiers in 8-DIP packages. Both support supply voltages from 2.5V to 36V and operate across -40°C to 85°C. These devices feature substantially higher gain bandwidth products (14MHz and 28MHz respectively) and slew rates (7V/µs and 12V/µs respectively), suitable for applications requiring enhanced frequency response. The LT1213CN8#PBF provides the highest bandwidth (28MHz) among listed substitutes.

LT1208CN8#PBF (Linear Technology) is a high-speed dual operational amplifier with exceptional performance: 400V/µs slew rate and 45MHz gain bandwidth product. This device is appropriate for applications requiring maximum signal fidelity and speed. Supply voltage range is 5V to 30V, which overlaps the LM258N specification at the upper end.

LT1215CN8#PBF (Analog Devices Inc.) offers 50V/µs slew rate and 23MHz gain bandwidth product with operating temperature range of 0°C to 70°C. This device is suitable for high-speed applications within the specified temperature window.

LM1458N/NOPB (Texas Instruments) is a general-purpose dual operational amplifier in 8-DIP package. However, this device has a fixed supply voltage specification of 36V (both minimum and maximum), which does not accommodate the LM258N's 3V minimum requirement. This part is not recommended as a direct substitute for applications requiring low-voltage operation.

Compliance and Availability Considerations:

All recommended substitutes maintain ROHS3 compliance and through-hole mounting compatibility. LM258P and LM258AP offer the highest inventory availability (34,988 and 3,596 units respectively), ensuring supply chain continuity. The LT1211CN8#PBF and LT1213CN8#PBF provide moderate inventory levels (944 and 2,300 units respectively) with active product status.

Frequently Asked Questions (FAQ)

Q: Can the LM258P directly replace the LM258N in all applications?

A: The LM258P is a direct pin-compatible substitute with identical package (8-DIP), circuit count (2), and supply voltage range (3V to 32V). However, the LM258P operating temperature range (-25°C to 85°C) is narrower than the LM258N (-40°C to 105°C). For applications requiring operation below -25°C or above 85°C, the LM258P is not suitable. For standard temperature range applications, LM258P is a fully compatible replacement.

Q: What is the difference between the LM258P and LM258AP?

A: Both are Texas Instruments LM258 variants in 8-DIP packages with identical electrical specifications. The primary difference is operating temperature range: LM258P operates from -25°C to 85°C, while LM258AP also operates from -25°C to 85°C. Both have narrower temperature ranges than the LM258N. Inventory availability differs significantly: LM258P has 34,988 units in stock versus 3,596 units for LM258AP.

Q: Why does the LM1458N/NOPB not qualify as a substitute?

A: The LM1458N/NOPB has a fixed supply voltage specification of 36V (minimum and maximum), meaning it requires exactly 36V operation. The LM258N requires a minimum supply voltage of 3V. Applications designed for the LM258N operating at 3V to 30V cannot use the LM1458N/NOPB, as it does not support this voltage range. The LM1458N/NOPB is not a suitable substitute.

Q: Can I use the CA3240AEZ as a substitute in low-voltage applications?

A: The CA3240AEZ has a minimum supply voltage of 4V, whereas the LM258N operates at 3V minimum. For applications requiring 3V operation, the CA3240AEZ is not suitable. For applications operating at 4V or higher, the CA3240AEZ is a compatible substitute with superior performance characteristics (higher slew rate, gain bandwidth product, and lower input bias current).

Q: What are the advantages of using LT1211CN8#PBF or LT1213CN8#PBF over the LM258P?

A: The LT1211CN8#PBF and LT1213CN8#PBF offer significantly higher gain bandwidth products (14MHz and 28MHz respectively) and slew rates (7V/µs and 12V/µs respectively) compared to the LM258P (700kHz and 0.3V/µs respectively). These devices are suitable for applications requiring faster signal response and higher frequency operation. Both support the extended supply voltage range (2.5V to 36V) and operating temperature range (-40°C to 85°C), providing broader compatibility than the LM258P.

Q: Are all substitute parts RoHS3 compliant?

A: All recommended substitute parts except LT1208CN8#PBF are explicitly listed as ROHS3 compliant. The LT1208CN8#PBF RoHS status is not specified in the provided data. For applications requiring RoHS3 compliance certification, verify the LT1208CN8#PBF compliance status with the manufacturer before selection.

Q: Can I use the LT1208CN8#PBF in place of the LM258N?

A: The LT1208CN8#PBF is pin-compatible (8-DIP package) and supports the required supply voltage range (5V to 30V). However, the minimum supply voltage is 5V, not 3V. For applications operating at 5V or higher, the LT1208CN8#PBF is a suitable substitute with exceptional performance (400V/µs slew rate, 45MHz gain bandwidth product). For applications requiring 3V or 4V operation, the LT1208CN8#PBF is not appropriate.

Q: What is the significance of input bias current differences between substitutes?

A: Input bias current affects the input impedance and DC accuracy of the operational amplifier. The LM258N has 20nA input bias current. The CA3240AEZ has 10pA (significantly lower), providing superior input impedance characteristics. The LT1208CN8#PBF has 4µA (significantly higher), which may introduce additional DC offset in high-impedance input circuits. For applications sensitive to input bias current, the CA3240AEZ or LT1211/LT1213 series are preferred over the LT1208CN8#PBF.

Q: Which substitute offers the best balance of performance and availability?

A: The LM258P offers the optimal balance of direct compatibility, performance adequacy for general-purpose applications, and availability (34,988 units in stock). It maintains identical electrical specifications to the LM258N within the standard temperature range and is the most readily available active substitute. For applications requiring extended temperature operation (-40°C to 105°C), the LT1211CN8#PBF or LT1213CN8#PBF are recommended despite lower inventory levels.

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