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LM358DT Equivalent & Substitute Parts
Part Overview
The LM358DT is a general-purpose operational amplifier featuring two independent circuits in an 8-SOIC surface mount package, manufactured by Rohm Semiconductor. This device is classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing design requirements and production continuity. The LM358DT operates across a supply voltage range of 3 V to 32 V with an operating temperature range of -40°C to 85°C, making it suitable for a broad range of analog signal processing applications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 2 | — |
| Slew Rate | 0.3 | V/µs |
| Gain Bandwidth Product | 800 | kHz |
| Current - Input Bias | 20 | nA |
| Voltage - Input Offset | 1 | mV |
| Current - Supply | 600 | µA |
| Current - Output / Channel | 30 | mA |
| Voltage - Supply Span (Min) | 3 | V |
| Voltage - Supply Span (Max) | 32 | V |
| Operating Temperature | -40 to 85 | °C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
Substitute Part Grouping Explanation
Substitution of the LM358DT is determined by compatibility across the following critical parameters: package type (8-SOIC surface mount), number of circuits (dual amplifier configuration), supply voltage range (minimum 3 V, maximum 32 V), operating temperature range, and functional amplifier classification (general purpose or equivalent topology).
The substitute parts are grouped into two primary categories:
Category 1: General Purpose Amplifiers (Direct Functional Equivalents) These devices maintain the general-purpose amplifier topology with dual circuits in 8-SOIC packaging. Substitutes include LM1458M/NOPB, LM1458MX/NOPB, LM158DT, LM258ADR, and LM258D. These parts satisfy the core functional requirements and package constraints of the LM358DT while offering active product status.
Category 2: J-FET Input Amplifiers (Enhanced Performance Alternatives) The ADA4062-2 series (ADA4062-2ARZ, ADA4062-2ARZ-R7, ADA4062-2ARZ-RL, ADA4062-2BRZ, ADA4062-2BRZ-R7) represents an alternative topology utilizing J-FET input stages. These devices provide superior input bias current characteristics and higher bandwidth performance while maintaining dual-circuit 8-SOIC packaging and compatible supply voltage ranges.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Amplifier Type | Slew Rate (V/µs) | GBW (kHz) | Input Bias (nA) | Input Offset (mV) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Package |
|---|---|---|---|---|---|---|---|---|---|---|---|
| LM358DT | Rohm Semiconductor | Obsolete | General Purpose | 0.3 | 800 | 20 | 1 | 3 | 32 | -40 to 85 | 8-SOIC |
| LM1458M/NOPB | Texas Instruments | Active | General Purpose | 0.5 | 1000 | 200 | 1 | 36 | 36 | 0 to 70 | 8-SOIC |
| LM1458MX/NOPB | National Semiconductor | Active | General Purpose | 0.5 | 1000 | 200 | 1 | 36 | 36 | 0 to 70 | 8-SOIC |
| LM158DT | STMicroelectronics | Active | General Purpose | 0.6 | 1100 | 20 | 5 | 3 | 30 | -55 to 125 | 8-SOIC |
| LM258ADR | Texas Instruments | Active | General Purpose | 0.3 | 700 | 15 | 2 | 3 | 32 | -25 to 85 | 8-SOIC |
| LM258D | STMicroelectronics | Active | General Purpose | 0.6 | 1100 | 20 | 5 | 3 | 30 | -40 to 105 | 8-SOIC |
| ADA4062-2ARZ | Analog Devices Inc. | Active | J-FET | 3.3 | 1400 | 0.002 | 0.75 | 8 | 36 | -40 to 125 | 8-SOIC |
| ADA4062-2ARZ-R7 | Analog Devices Inc. | Active | J-FET | 3.3 | 1400 | 0.002 | 0.75 | 8 | 36 | -40 to 125 | 8-SOIC |
| ADA4062-2ARZ-RL | Analog Devices Inc. | Active | J-FET | 3.3 | 1400 | 0.002 | 0.75 | 8 | 36 | -40 to 125 | 8-SOIC |
| ADA4062-2BRZ | Analog Devices Inc. | Active | J-FET | 3.3 | 1400 | 0.002 | 0.5 | 8 | 36 | -40 to 125 | 8-SOIC |
| ADA4062-2BRZ-R7 | Analog Devices Inc. | Active | J-FET | 3.3 | 1400 | 0.002 | 0.5 | 8 | 36 | -40 to 125 | 8-SOIC |
Engineering Selection Recommendations
For Direct Functional Replacement with Minimal Design Impact:
LM258ADR (Texas Instruments) provides the closest electrical match to the LM358DT. This device maintains identical slew rate (0.3 V/µs), compatible supply voltage range (3 V to 32 V), and equivalent input bias current (15 nA versus 20 nA). The LM258ADR is active, ROHS3 compliant, and available in high inventory quantities. Operating temperature range extends to -25°C to 85°C, which covers the LM358DT specification within the upper temperature boundary.
LM258D (STMicroelectronics) offers an alternative with extended lower temperature operation (-40°C to 105°C), matching the LM358DT minimum temperature specification. This device provides higher slew rate (0.6 V/µs) and bandwidth (1.1 MHz) with compatible supply voltage range and package configuration.
For Enhanced Performance Requirements:
The ADA4062-2 series (Analog Devices Inc.) represents a performance upgrade path when application requirements demand superior input bias current characteristics (2 pA versus 20 nA) and higher bandwidth (1.4 MHz versus 800 kHz). The ADA4062-2ARZ-R7 variant offers the highest inventory availability (17,915 units) with Cut Tape & Digi-Reel packaging. All ADA4062-2 variants are active, ROHS3 compliant, and operate across -40°C to 125°C. Note that minimum supply voltage requirement increases to 8 V for this topology.
Compliance and Certification Status:
All recommended substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the LM358DT. The LM158DT carries AEC-Q100 automotive qualification, suitable for applications requiring automotive-grade components.
Frequently Asked Questions (FAQ)
Q: Can LM258ADR directly replace LM358DT without circuit modifications?
A: LM258ADR is electrically compatible with LM358DT across all critical parameters: dual general-purpose amplifier topology, 8-SOIC package, 3 V to 32 V supply range, and -25°C to 85°C operating temperature. The slew rate (0.3 V/µs) and input bias current (15 nA) are within acceptable tolerance of the original specification. No circuit modifications are required for functional substitution.
Q: What is the primary difference between general-purpose and J-FET amplifier substitutes?
A: General-purpose amplifiers (LM258, LM158, LM1458 series) utilize bipolar input stages with input bias currents in the nanoampere range (15-200 nA). J-FET amplifiers (ADA4062-2 series) employ field-effect transistor input stages with input bias currents in the picoampere range (2 pA). J-FET devices provide superior input impedance and lower input bias current at the cost of higher minimum supply voltage (8 V versus 3 V).
Q: Are packaging variants of the same base part number (e.g., ADA4062-2ARZ, ADA4062-2ARZ-R7, ADA4062-2ARZ-RL) electrically identical?
A: Yes. The ADA4062-2ARZ variants differ only in packaging and delivery format: ADA4062-2ARZ (Tube), ADA4062-2ARZ-R7 (Cut Tape & Digi-Reel), and ADA4062-2ARZ-RL (Tape & Reel). Electrical specifications, performance characteristics, and functional behavior are identical across all three variants. Selection depends on manufacturing process requirements and inventory management preferences.
Q: Why does LM1458M/NOPB specify a fixed 36 V supply voltage rather than a range?
A: The LM1458M/NOPB supply voltage specification indicates a single nominal supply voltage of 36 V, which differs from the LM358DT's 3 V to 32 V range. This device is not recommended as a direct substitute for applications requiring operation at lower supply voltages (below 36 V) or variable supply configurations.
Q: What is the significance of the -40°C to 125°C operating temperature range in the ADA4062-2 series?
A: The extended temperature range (-40°C to 125°C) of the ADA4062-2 series exceeds the LM358DT specification (-40°C to 85°C), providing additional margin for high-temperature applications. This extended range is particularly valuable in industrial and automotive environments where ambient temperatures may approach or exceed 85°C.
Q: Can LM158DT be used in applications originally designed for LM358DT?
A: LM158DT is compatible with LM358DT across package type, supply voltage range (3 V to 30 V), and operating temperature minimum (-55°C). The LM158DT provides enhanced performance with higher slew rate (0.6 V/µs versus 0.3 V/µs) and bandwidth (1.1 MHz versus 800 kHz). The maximum supply voltage is 30 V versus 32 V for the LM358DT, which is acceptable for most applications. LM158DT carries AEC-Q100 automotive qualification, adding value for regulated applications.
Q: What inventory considerations should guide substitute part selection?
A: LM258ADR offers the highest inventory availability (27,600 units) among general-purpose alternatives. ADA4062-2ARZ-R7 provides the highest inventory among J-FET alternatives (17,915 units). For time-sensitive procurement, these parts offer supply security. LM1458MX/NOPB (24,832 units) and LM158DT (52,573 units) also maintain substantial inventory levels.
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