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LM1458MX Equivalent & Substitute Parts
Part Overview
The LM1458MX is a general-purpose operational amplifier manufactured by onsemi, featuring two independent circuits in an 8-SOIC surface-mount package. This device is classified as obsolete, indicating that direct procurement from original manufacturing sources may be limited. The LM1458MX operates across a supply voltage span of 36 V with a slew rate of 0.5 V/µs and is designed for applications requiring dual-channel amplification in compact form factors. Due to its obsolete status, identifying functionally equivalent and compatible substitute components is essential for design continuity and production planning.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | onsemi | — |
| Part Number | LM1458MX | — |
| Product Status | Obsolete | — |
| Amplifier Type | General Purpose | — |
| Number of Circuits | 2 | — |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Slew Rate | 0.5 | V/µs |
| Current - Input Bias | 80 | nA |
| Voltage - Input Offset | 2 | mV |
| Current - Supply | 2.3 (x2 Channels) | mA |
| Current - Output / Channel | 20 | mA |
| Voltage - Supply Span (Min) | 36 | V |
| Voltage - Supply Span (Max) | 36 | V |
| Operating Temperature | 0°C ~ 70°C | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
| REACH Status | REACH Unaffected | — |
Substitute Part Grouping Explanation
Substitution of the LM1458MX is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:
Critical Parameters for Substitution:
- Package type: 8-SOIC surface-mount form factor (0.154", 3.90mm width)
- Number of circuits: Dual-channel configuration (2 circuits)
- Amplifier classification: General Purpose or compatible topology
- Supply voltage compatibility: Minimum 36 V span or greater
- Operating temperature range: Must encompass or exceed 0°C ~ 70°C
- Slew rate: 0.5 V/µs or higher
- Input bias current: 80 nA or lower
- Output current per channel: 20 mA or higher
Substitute parts are grouped into two categories:
Category 1: Direct Functional Equivalents (onsemi & Texas Instruments) Parts that maintain identical or superior electrical specifications with the same 8-SOIC package footprint and general-purpose amplifier classification. These include MC1458DR, MC1458DE4, and onsemi variants.
Category 2: Enhanced Performance Alternatives (onsemi, Analog Devices, Rohm) Parts that exceed baseline specifications in slew rate, gain-bandwidth product, or temperature range while maintaining package compatibility and dual-circuit configuration. These include MC33078DR2G, SE5532AD8R2G, ADA4062 variants, and BA4558/BA4560 series.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Amplifier Type | Package | Slew Rate (V/µs) | Input Bias (nA) | Input Offset (mV/µV) | Supply Span Min (V) | Supply Span Max (V) | Temp Range (°C) | Output Current (mA) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| LM1458MX | onsemi | Obsolete | General Purpose | 8-SOIC | 0.5 | 80 | 2 | 36 | 36 | 0 ~ 70 | 20 |
| MC1458DR | Texas Instruments | Active | General Purpose | 8-SOIC | 0.5 | 80 | 1 | 10 | 30 | 0 ~ 70 | 25 |
| MC1458DE4 | Texas Instruments | Obsolete | General Purpose | 8-SOIC | 0.5 | 80 | 1 | 10 | 30 | 0 ~ 70 | 25 |
| MC33078DR2G | onsemi | Active | General Purpose | 8-SOIC | 7 | 300 | 0.15 | 10 | 36 | -40 ~ 85 | 37 |
| LM833DR2G | onsemi | Active | Audio | 8-SOIC | 7 | 300 | 0.3 | 10 | 36 | -40 ~ 85 | 29 |
| SE5532AD8R2G | onsemi | Active | General Purpose | 8-SOIC | 9 | 300 | 0.5 | 6 | 40 | -55 ~ 125 | 38 |
| ADA4062-2ARZ-R7 | Analog Devices Inc. | Active | J-FET | 8-SOIC | 3.3 | 0.002 | 0.75 | 8 | 36 | -40 ~ 125 | 20 |
| ADA4062-2BRZ-R7 | Analog Devices Inc. | Active | J-FET | 8-SOIC | 3.3 | 0.002 | 0.5 | 8 | 36 | -40 ~ 125 | 20 |
| BA4558F-E2 | Rohm Semiconductor | Active | General Purpose | 8-SOP | 1.2 | 60 | 0.5 | 8 | 30 | -40 ~ 85 | 10 |
| BA4558RF-E2 | Rohm Semiconductor | Active | General Purpose | 8-SOP | 1 | 60 | 0.5 | 8 | 30 | -40 ~ 105 | 10 |
| BA4560F-E1 | Rohm Semiconductor | Active | General Purpose | 8-SOP | 4 | 50 | 0.5 | 8 | 30 | -40 ~ 85 | 25 |
Engineering Selection Recommendations
Primary Recommendation: MC1458DR (Texas Instruments)
The MC1458DR is the preferred direct substitute for the LM1458MX. This part maintains identical electrical specifications (0.5 V/µs slew rate, 80 nA input bias current, 0°C ~ 70°C operating range) and is housed in the same 8-SOIC package. The MC1458DR holds Active product status, ensuring continued availability and supply chain stability. Both parts are REACH Unaffected and carry identical compliance certifications (ECCN: EAR99, HTSUS: 8542.33.0001). The primary distinction is that MC1458DR operates across a 10 V to 30 V supply span, which is narrower than the LM1458MX specification but sufficient for most general-purpose applications within the 0°C ~ 70°C temperature window.
Secondary Recommendation: MC33078DR2G (onsemi)
The MC33078DR2G serves as an enhanced alternative when improved performance is acceptable. This part maintains the 8-SOIC package and dual-circuit configuration while offering superior slew rate (7 V/µs versus 0.5 V/µs), extended temperature range (-40°C ~ 85°C), and higher output current capability (37 mA versus 20 mA per channel). The MC33078DR2G is Active status and ROHS3 Compliant. Supply voltage compatibility extends to 36 V maximum, matching the LM1458MX specification. This substitute is suitable for applications where faster signal response and wider operating temperature range provide design advantages.
Tertiary Recommendation: SE5532AD8R2G (onsemi)
The SE5532AD8R2G is applicable for designs requiring the widest operating temperature range (-55°C ~ 125°C) and highest slew rate (9 V/µs). This part maintains 8-SOIC packaging and dual-circuit general-purpose amplifier topology. Supply voltage range extends to 40 V maximum, exceeding the LM1458MX specification. The SE5532AD8R2G is Active status and ROHS3 Compliant. This substitute is recommended for industrial or extended-temperature applications where the LM1458MX temperature limitations are restrictive.
Alternative for Low Input Bias Applications: ADA4062-2ARZ-R7 or ADA4062-2BRZ-R7 (Analog Devices Inc.)
The ADA4062 series (J-FET topology) provides exceptional input bias current performance (2 pA versus 80 nA), making these parts suitable for high-impedance signal conditioning applications. Both variants maintain 8-SOIC packaging, dual-circuit configuration, and 36 V maximum supply voltage. Operating temperature range extends to -40°C ~ 125°C. These substitutes are Active status and ROHS3 Compliant. Selection between ARZ-R7 (750 µV input offset) and BRZ-R7 (500 µV input offset) depends on offset voltage tolerance requirements.
Package Compatibility Note: Rohm BA4558 and BA4560 Series
The BA4558F-E2, BA4558RF-E2, and BA4560F-E1 devices are housed in 8-SOP packages (0.173", 4.40mm width) rather than the 8-SOIC package of the LM1458MX. While these parts maintain dual-circuit general-purpose amplifier topology and are Active status with ROHS3 compliance, the package footprint difference requires PCB layout modification. These substitutes are applicable only when board redesign is feasible. The BA4560F-E1 offers the highest slew rate (4 V/µs) among the Rohm options and supports 25 mA output current per channel.
Frequently Asked Questions (FAQ)
Q: Can the MC1458DR directly replace the LM1458MX without PCB modifications?
A: Yes. The MC1458DR is housed in the same 8-SOIC package (0.154", 3.90mm width) with identical pinout and footprint. No PCB layout changes are required. Both parts are dual-channel general-purpose operational amplifiers with matching electrical specifications for the critical parameters: slew rate (0.5 V/µs), input bias current (80 nA), and operating temperature range (0°C ~ 70°C).
Q: What is the primary limitation of substituting the LM1458MX with MC1458DR?
A: The MC1458DR operates across a 10 V to 30 V supply voltage range, whereas the LM1458MX is specified for 36 V. If your application requires operation at supply voltages above 30 V, the MC1458DR is not suitable. In such cases, the MC33078DR2G or SE5532AD8R2G are recommended, as both support 36 V or higher maximum supply voltages.
Q: Why is the MC33078DR2G considered an enhanced alternative?
A: The MC33078DR2G provides superior performance across multiple parameters: slew rate increases from 0.5 V/µs to 7 V/µs, enabling faster signal response; operating temperature range extends from 0°C ~ 70°C to -40°C ~ 85°C, supporting broader environmental conditions; output current per channel increases from 20 mA to 37 mA, providing greater load-driving capability. The 8-SOIC package remains identical, and supply voltage compatibility extends to 36 V maximum. These improvements make the MC33078DR2G suitable for applications where the LM1458MX performance is marginal.
Q: Are the Rohm BA4558 and BA4560 series compatible with the LM1458MX?
A: The Rohm parts are functionally compatible but require PCB redesign. The BA4558F-E2, BA4558RF-E2, and BA4560F-E1 are housed in 8-SOP packages (0.173", 4.40mm width) rather than the 8-SOIC package (0.154", 3.90mm width) of the LM1458MX. While the pin count and electrical function are compatible, the different package footprint necessitates layout modification. These substitutes are applicable only when board redesign is feasible or when the wider operating temperature range (BA4558RF-E2 supports -40°C ~ 105°C) justifies the redesign effort.
Q: What is the advantage of the ADA4062 J-FET amplifiers over the LM1458MX?
A: The ADA4062 series offers dramatically lower input bias current (2 pA versus 80 nA), making these parts ideal for high-impedance signal conditioning, precision instrumentation, and applications sensitive to input bias current errors. The J-FET input topology provides superior input impedance characteristics. Both ADA4062-2ARZ-R7 and ADA4062-2BRZ-R7 maintain 8-SOIC packaging and support 36 V maximum supply voltage. Operating temperature range extends to -40°C ~ 125°C. The trade-off is slightly lower slew rate (3.3 V/µs versus 0.5 V/µs for the LM1458MX, though this is still adequate for most applications).
Q: Is the LM833DR2G a suitable substitute for the LM1458MX?
A: The LM833DR2G is functionally compatible but classified as an Audio amplifier rather than General Purpose. While it maintains the 8-SOIC package, dual-circuit configuration, and 36 V maximum supply voltage, the LM833DR2G is optimized for audio applications with higher slew rate (7 V/µs) and gain-bandwidth product (15 MHz). The input bias current is higher (300 nA versus 80 nA), and input offset voltage is higher (300 µV versus 2 mV). The LM833DR2G is suitable only if your application specifically requires audio-grade performance characteristics.
Q: What compliance certifications should I verify when selecting a substitute?
A: All substitute parts listed maintain REACH Unaffected status and ECCN: EAR99 classification, matching the LM1458MX. Most active substitutes (MC33078DR2G, SE5532AD8R2G, ADA4062 variants, and Rohm BA series) are ROHS3 Compliant, providing enhanced environmental compliance compared to the obsolete LM1458MX. Verify that your application requirements align with these certifications before final part selection.
Q: Can I use the SE5532AD8R2G in place of the LM1458MX for all applications?
A: The SE5532AD8R2G is a superior substitute in terms of performance and temperature range but introduces one consideration: supply voltage minimum is 6 V (versus 36 V for the LM1458MX). This means the SE5532AD8R2G can operate at lower supply voltages, which is generally advantageous. The maximum supply voltage extends to 40 V, exceeding the LM1458MX specification. The SE5532AD8R2G is suitable for all applications where the LM1458MX was used, with the added benefit of extended operating temperature range (-55°C ~ 125°C) and improved slew rate (9 V/µs).
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