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LM258AN Equivalent & Substitute Parts
Part Overview
The LM258AN is a general-purpose dual operational amplifier manufactured by STMicroelectronics, housed in an 8-pin Mini DIP package. This device is classified as obsolete, though 2950 units remain in stock as new original inventory. The LM258AN operates across a wide supply voltage range of 3V to 30V and is qualified to AEC-Q100 automotive standards, making it suitable for automotive and industrial applications requiring dual amplifier functionality.
Due to its obsolete status, identifying equivalent and substitute parts is essential for design continuity, long-term production support, and supply chain reliability. Active alternatives with comparable or enhanced electrical characteristics are available from multiple manufacturers.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 2 | — |
| Slew Rate | 0.6 | V/µs |
| Gain Bandwidth Product | 1.1 | MHz |
| Current - Input Bias | 20 | nA |
| Voltage - Input Offset | 1 | mV |
| Current - Supply (x2 Channels) | 700 | µA |
| Current - Output / Channel | 40 | mA |
| Voltage - Supply Span (Min) | 3 | V |
| Voltage - Supply Span (Max) | 30 | V |
| Operating Temperature | -40 to 105 | °C |
| Package / Case | 8-DIP (0.300", 7.62mm) | — |
| Mounting Type | Through Hole | — |
| RoHS Status | ROHS3 Compliant | — |
| Grade | Automotive | — |
| Qualification | AEC-Q100 | — |
Substitute Part Grouping Explanation
Substitution of the LM258AN is determined by the following critical parameters:
Package Compatibility: All substitute parts must use the 8-DIP (0.300", 7.62mm) through-hole package to ensure direct PCB compatibility without layout modifications.
Dual Amplifier Configuration: All substitutes must contain exactly 2 circuits to maintain functional equivalence in dual-amplifier applications.
Supply Voltage Range: Substitute parts must support the minimum 3V supply requirement and accommodate the maximum 30V supply specification of the LM258AN. Parts with narrower supply ranges may not be suitable for all applications.
Output Current: All substitutes must deliver a minimum of 40 mA per channel to meet load-driving requirements.
Electrical Performance: While the LM258AN operates at 0.6 V/µs slew rate and 1.1 MHz gain-bandwidth product, substitute parts may offer enhanced performance characteristics. Substitutes with higher slew rates and bandwidth products are electrically compatible and provide improved performance margins.
Compliance and Certification: RoHS3 compliance and REACH unaffected status are maintained across all substitute options. Automotive-grade alternatives with AEC-Q100 qualification are identified where applicable.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Slew Rate (V/µs) | GBW (MHz) | Input Bias (nA) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Package |
|---|---|---|---|---|---|---|---|---|---|
| LM258AN | STMicroelectronics | Obsolete | 0.6 | 1.1 | 20 | 3 | 30 | -40 to 105 | 8-DIP |
| LM258AP | Texas Instruments | Active | 0.3 | 0.7 | 15 | 3 | 32 | -25 to 85 | 8-DIP |
| LM258P | Texas Instruments | Active | 0.3 | 0.7 | 20 | 3 | 32 | -25 to 85 | 8-DIP |
| LM358AN/NOPB | Texas Instruments | Active | — | 1.0 | 45 | 3 | 32 | 0 to 70 | 8-DIP |
| LM358AP | Texas Instruments | Active | 0.3 | 0.7 | 15 | 3 | 30 | 0 to 70 | 8-DIP |
| LM358N/NOPB | Texas Instruments | Active | — | 1.0 | 45 | 3 | 32 | 0 to 70 | 8-DIP |
| LM358P | Texas Instruments | Active | 0.3 | 0.7 | 20 | 3 | 30 | 0 to 70 | 8-DIP |
| LM358PE3 | Texas Instruments | Last Time Buy | 0.3 | 0.7 | 20 | 3 | 30 | 0 to 70 | 8-DIP |
| CA3240AEZ | Renesas Electronics | Active | 9.0 | 4.5 | 0.01 | 4 | 36 | -40 to 85 | 8-DIP |
| LT1208CN8#PBF | Linear Technology | Active | 400 | 45 | 4000 | 5 | 30 | 0 to 70 | 8-DIP |
| LT1211ACN8#PBF | Analog Devices Inc. | Active | 7.0 | 14 | 45 | 2.5 | 36 | -40 to 85 | 8-DIP |
Engineering Selection Recommendations
Direct Replacement for Automotive Applications: The CA3240AEZ from Renesas Electronics is the preferred substitute for automotive and extended temperature range applications. It maintains the 8-DIP package format, supports the required 3V minimum supply voltage (with 4V minimum specification), and extends the maximum supply to 36V. The CA3240AEZ operates across -40°C to 85°C, providing automotive-grade performance with significantly enhanced electrical characteristics including 9 V/µs slew rate and 4.5 MHz gain-bandwidth product.
Standard Industrial Replacement: The LM358 series from Texas Instruments (LM358P, LM358AP, LM358N/NOPB) provides active, readily available alternatives in the 8-DIP package. These parts maintain the 3V minimum supply requirement and support up to 30V to 32V maximum supply. The LM358 variants are RoHS3 compliant and suitable for applications where the extended temperature range of the LM258AN is not required. The LM358P offers the highest inventory availability (53,800 units) among active substitutes.
High-Performance Alternative: The LT1208CN8#PBF from Linear Technology delivers exceptional performance with 400 V/µs slew rate and 45 MHz gain-bandwidth product. This part is suitable for applications requiring high-speed amplification. However, the minimum supply voltage is 5V, which exceeds the LM258AN's 3V minimum specification. The LT1208CN8#PBF is appropriate only for designs with 5V or higher supply rails.
Enhanced Performance with Extended Temperature: The LT1211ACN8#PBF from Analog Devices provides 7 V/µs slew rate and 14 MHz gain-bandwidth product across -40°C to 85°C operating range. This part supports supply voltages from 2.5V to 36V, offering the widest supply range compatibility. The LT1211ACN8#PBF is suitable for applications requiring improved performance and extended temperature operation.
Legacy Compatibility: The LM258AP and LM258P from Texas Instruments are direct variants of the LM258 base product number, maintaining electrical characteristics closely aligned with the LM258AN. These parts are active and widely available, making them suitable for straightforward design transitions.
Frequently Asked Questions (FAQ)
Q: Can the LM358 series directly replace the LM258AN in automotive applications?
A: The LM358 series is electrically compatible in terms of package, pin configuration, and dual-amplifier functionality. However, the LM358 operates across 0°C to 70°C, which is narrower than the LM258AN's -40°C to 105°C range. For automotive applications requiring the full -40°C to 105°C temperature specification, the CA3240AEZ is the appropriate choice.
Q: What is the minimum supply voltage requirement for substitute parts?
A: The LM258AN requires a minimum of 3V supply. Most substitutes (LM258 variants, LM358 variants, CA3240AEZ) maintain this 3V minimum. The LT1208CN8#PBF requires 5V minimum, and the LT1211ACN8#PBF supports 2.5V minimum. Verify the specific application supply voltage before selection.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All substitute parts listed are RoHS3 compliant and REACH unaffected, maintaining environmental compliance equivalent to the LM258AN.
Q: Does the 8-DIP package format remain consistent across all substitutes?
A: Yes. All substitute parts use the 8-DIP (0.300", 7.62mm) through-hole package, ensuring direct PCB compatibility without layout modifications or re-routing.
Q: Which substitute offers the best performance improvement over the LM258AN?
A: The LT1208CN8#PBF provides the most significant performance enhancement with 400 V/µs slew rate and 45 MHz gain-bandwidth product, compared to the LM258AN's 0.6 V/µs and 1.1 MHz. However, this part requires a 5V minimum supply voltage. For applications with 3V supply requirements, the CA3240AEZ offers substantial improvements with 9 V/µs slew rate and 4.5 MHz gain-bandwidth product.
Q: What is the inventory status of active substitutes?
A: The LM358P has the highest inventory availability with 53,800 units in stock. The LM358AP and LM358AN/NOPB each have approximately 20,000 units available. The CA3240AEZ has 1,744 units in stock. The LT1208CN8#PBF and LT1211ACN8#PBF have lower inventory levels at 1,110 and 1,172 units respectively.
Q: Can the LM258AN be used interchangeably with the LM358 in existing designs?
A: The LM258AN and LM358 series share the same 8-DIP package and dual-amplifier configuration. Both support 3V to 30V supply ranges and deliver 40 mA output current per channel. The primary differences are in slew rate, gain-bandwidth product, and operating temperature range. Electrical substitution is feasible for applications not requiring the LM258AN's extended -40°C to 105°C temperature range.
Q: Is the CA3240AEZ suitable for all LM258AN applications?
A: The CA3240AEZ is suitable for most applications, with the following considerations: it requires a minimum 4V supply (versus 3V for the LM258AN), supports up to 36V maximum supply, and operates across -40°C to 85°C. Applications with 3V supply rails or requiring operation above 85°C require alternative selections.
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