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BA4558F-E2 Equivalent & Substitute Parts
Part Overview
The BA4558F-E2 is a general-purpose operational amplifier manufactured by Rohm Semiconductor, configured as a dual-channel (2 circuit) device in an 8-SOP surface mount package. This linear amplifier is designed for applications requiring moderate bandwidth and low-cost signal conditioning. The part is currently in active production status with substantial inventory availability (165,200 pieces).
Substitute parts become necessary when the BA4558F-E2 reaches end-of-life, when alternative packaging formats are required for manufacturing processes, or when design specifications demand enhanced performance characteristics such as higher slew rate, improved input bias current, or extended operating temperature ranges.
Substiute Parts
Key Parameters
| Parameter | BA4558F-E2 Value | Unit | Substitution Relevance |
|---|---|---|---|
| Amplifier Type | General Purpose | — | Critical: Determines functional compatibility |
| Number of Circuits | 2 | Channels | Critical: Must match for pin-compatible replacement |
| Slew Rate | 1.2 | V/µs | Important: Affects frequency response and signal fidelity |
| Gain Bandwidth Product | 2 | MHz | Important: Determines maximum usable frequency |
| Current - Input Bias | 60 | nA | Important: Affects input impedance and circuit biasing |
| Voltage - Input Offset | 500 | µV | Important: Determines DC accuracy |
| Current - Output / Channel | 10 | mA | Important: Determines output drive capability |
| Voltage - Supply Span (Min) | 8 | V | Critical: Minimum operating voltage requirement |
| Voltage - Supply Span (Max) | 30 | V | Critical: Maximum operating voltage rating |
| Operating Temperature | -40 to 85 | °C | Important: Defines environmental operating range |
| Mounting Type | Surface Mount | — | Critical: Determines PCB assembly compatibility |
| Package / Case | 8-SOIC (0.173", 4.40mm Width) | — | Critical: Physical footprint and pinout |
| RoHS Status | ROHS3 Compliant | — | Important: Environmental and regulatory compliance |
| Moisture Sensitivity Level | 1 (Unlimited) | — | Important: Handling and storage requirements |
Substitute Part Grouping Explanation
Substitution logic for the BA4558F-E2 is based on the following critical parameters:
Mandatory Matching Criteria:
- Number of Circuits: Must be 2 (dual-channel configuration)
- Mounting Type: Must be Surface Mount
- Package Category: Must be 8-pin SOIC/SOP variant
- Amplifier Type: General Purpose (preferred for direct replacement)
- Voltage Supply Range: Must encompass or exceed 8V to 30V span
- RoHS3 Compliance: Required for regulatory alignment
Performance Compatibility Criteria:
- Slew Rate: Substitute must meet or exceed 1.2 V/µs for equivalent or improved performance
- Gain Bandwidth Product: Substitute must meet or exceed 2 MHz
- Input Bias Current: Lower values indicate improved performance; 60 nA baseline
- Input Offset Voltage: Lower values indicate improved DC accuracy; 500 µV baseline
- Output Current per Channel: Must support minimum 10 mA output drive
Environmental Criteria:
- Operating Temperature: Substitute range must encompass -40°C to 85°C minimum
- Moisture Sensitivity: MSL 1 (Unlimited) preferred for handling consistency
Substitute parts are grouped into two categories: General Purpose Amplifiers (direct functional replacements) and J-FET Amplifiers (enhanced performance alternatives with different input characteristics).
Parameter Comparison
| Part Number | Manufacturer | Amplifier Type | Slew Rate (V/µs) | GBW (MHz) | Input Bias (nA) | Input Offset (µV) | Output Current (mA) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Package | Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BA4558F-E2 | Rohm Semiconductor | General Purpose | 1.2 | 2 | 60 | 500 | 10 | 8 | 30 | -40 to 85 | 8-SOIC (4.40mm) | Active |
| ADTL082ARZ | Analog Devices Inc. | J-FET | 20 | 5 | 0.002 | 1500 | 27 | 8 | 36 | -40 to 125 | 8-SOIC (3.90mm) | Active |
| ADTL082ARZ-REEL | Analog Devices Inc. | J-FET | 20 | 5 | 0.002 | 1500 | 27 | 8 | 36 | -40 to 125 | 8-SOIC (3.90mm) | Active |
| ADTL082ARZ-REEL7 | Analog Devices Inc. | J-FET | 20 | 5 | 0.002 | 1500 | 27 | 8 | 36 | -40 to 125 | 8-SOIC (3.90mm) | Active |
| LM1458M/NOPB | Texas Instruments | General Purpose | 0.5 | 1 | 200 | 1000 | — | 36 | 36 | 0 to 70 | 8-SOIC (3.90mm) | Active |
| LM1458MX/NOPB | National Semiconductor | General Purpose | 0.5 | 1 | 200 | 1000 | — | 36 | 36 | 0 to 70 | 8-SOIC (3.90mm) | Active |
| LM258AMDREP | Texas Instruments | General Purpose | 0.3 | 0.7 | 15 | 2000 | 30 | 3 | 32 | -55 to 125 | 8-SOIC (3.90mm) | Active |
| MC4558CDT | STMicroelectronics | General Purpose | 2.2 | 5.5 | 50 | 1000 | 20 | 4 | 40 | 0 to 70 | 8-SOIC (3.90mm) | Active |
| MC4558IDT | STMicroelectronics | General Purpose | 2.2 | 5.5 | 50 | 1000 | 20 | 4 | 40 | -40 to 105 | 8-SOIC (3.90mm) | Active |
| RC4558D | Texas Instruments | General Purpose | 1.7 | 3 | 150 | 500 | 10 | 10 | 30 | 0 to 70 | 8-SOIC (3.90mm) | Last Time Buy |
| RC4558DR | Texas Instruments | General Purpose | 1.7 | 3 | 150 | 500 | 10 | 10 | 30 | 0 to 70 | 8-SOIC (3.90mm) | Active |
Engineering Selection Recommendations
Primary Substitutes (General Purpose Category):
The MC4558IDT and MC4558CDT from STMicroelectronics represent the closest functional equivalents to the BA4558F-E2. Both devices maintain general-purpose amplifier topology, dual-channel configuration, and 8-SOIC packaging. The MC4558IDT offers extended operating temperature range (-40°C to 105°C) compared to the BA4558F-E2 (-40°C to 85°C), with superior slew rate (2.2 V/µs vs. 1.2 V/µs) and gain bandwidth product (5.5 MHz vs. 2 MHz). Both parts are ROHS3 compliant and maintain MSL 1 moisture sensitivity rating. The MC4558IDT is recommended for applications requiring the extended temperature range and improved dynamic performance.
The RC4558DR from Texas Instruments provides an active-status alternative with comparable performance characteristics. It maintains the 1.7 V/µs slew rate and 3 MHz gain bandwidth product, with identical 10 mA output current per channel. However, the RC4558DR specifies a minimum supply voltage of 10 V (versus 8 V for the BA4558F-E2), which may limit applicability in low-voltage designs.
Secondary Substitutes (Performance-Enhanced Category):
The ADTL082ARZ series from Analog Devices Inc. represents a performance-enhanced alternative utilizing J-FET input architecture. These devices deliver significantly improved input bias current (2 pA versus 60 nA), higher slew rate (20 V/µs), and extended gain bandwidth product (5 MHz). The ADTL082ARZ-REEL and ADTL082ARZ-REEL7 variants provide identical electrical specifications with different packaging formats (Cut Tape & Digi-Reel). All ADTL082 variants support extended operating temperature range (-40°C to 125°C) and higher maximum supply voltage (36 V). These substitutes are suitable for applications where superior input impedance and dynamic performance justify the higher input offset voltage (1.5 mV versus 500 µV).
Not Recommended for Direct Substitution:
The LM1458M/NOPB and LM1458MX/NOPB devices exhibit reduced performance specifications (0.5 V/µs slew rate, 1 MHz gain bandwidth product) and narrower operating temperature range (0°C to 70°C). These parts are suitable only for legacy designs or applications with relaxed performance requirements.
The LM258AMDREP, while offering extended temperature range (-55°C to 125°C) and low supply voltage capability (3 V minimum), provides insufficient slew rate (0.3 V/µs) and gain bandwidth product (700 kHz) for applications requiring the BA4558F-E2 performance level.
Compliance and Regulatory Status:
All recommended substitute parts maintain ROHS3 compliance and MSL 1 moisture sensitivity rating, ensuring compatibility with modern manufacturing processes and environmental regulations. The MC4558IDT is the preferred substitute for new designs requiring active production status and extended operating temperature range.
Frequently Asked Questions (FAQ)
Q: Can the MC4558IDT directly replace the BA4558F-E2 without circuit modification?
A: The MC4558IDT is pin-compatible and functionally equivalent for most applications. Both devices are dual-channel general-purpose amplifiers in 8-SOIC packages with identical pinout. However, the MC4558IDT exhibits superior performance specifications (higher slew rate and gain bandwidth product). Circuit verification is necessary only if the original design operates at the performance limits of the BA4558F-E2 or relies on specific input offset voltage characteristics.
Q: What is the primary difference between the ADTL082ARZ and the BA4558F-E2?
A: The ADTL082ARZ uses J-FET input architecture, resulting in dramatically lower input bias current (2 pA versus 60 nA). This characteristic makes the ADTL082ARZ superior for high-impedance input applications and transimpedance amplifier configurations. The trade-off is higher input offset voltage (1.5 mV versus 500 µV). The ADTL082ARZ also provides higher slew rate (20 V/µs) and gain bandwidth product (5 MHz), making it suitable for faster signal processing applications.
Q: Why do the ADTL082ARZ, ADTL082ARZ-REEL, and ADTL082ARZ-REEL7 have different part numbers if they are electrically identical?
A: The suffix designations indicate different packaging and tape formats. ADTL082ARZ is supplied in tube packaging. ADTL082ARZ-REEL and ADTL082ARZ-REEL7 are supplied in cut tape and Digi-Reel format, suitable for automated pick-and-place assembly. The electrical specifications and performance characteristics are identical across all three variants. Selection depends on manufacturing process requirements and inventory management preferences.
Q: Is the RC4558D suitable as a substitute despite its "Last Time Buy" status?
A: The RC4558D is electrically compatible with the BA4558F-E2 and offers comparable performance. However, its "Last Time Buy" status indicates that the manufacturer has announced end-of-life production. This part should be used only for legacy system maintenance or when existing inventory is available. For new designs, the RC4558DR (active status) or MC4558IDT (active status) are recommended.
Q: What is the significance of the 8-SOIC package width difference (4.40mm for BA4558F-E2 versus 3.90mm for most substitutes)?
A: The package width difference reflects different manufacturing standards. The BA4558F-E2 uses a wider 8-SOIC package (0.173" or 4.40mm), while most substitute parts use the standard 8-SOIC package (0.154" or 3.90mm). These packages are not physically interchangeable on the same PCB footprint. PCB redesign is required if substituting the BA4558F-E2 with a narrower-package alternative. Alternatively, the ADTL082ARZ series maintains the same 3.90mm width as other substitutes, simplifying PCB layout compatibility.
Q: Can the LM258AMDREP replace the BA4558F-E2 in a low-voltage application?
A: The LM258AMDREP supports lower minimum supply voltage (3 V versus 8 V), making it suitable for battery-powered applications. However, its significantly reduced slew rate (0.3 V/µs versus 1.2 V/µs) and gain bandwidth product (700 kHz versus 2 MHz) make it unsuitable for applications requiring the BA4558F-E2 performance level. The LM258AMDREP is appropriate only for legacy designs or applications with relaxed frequency response requirements.
Q: What compliance certifications should I verify when selecting a substitute?
A: All recommended substitute parts maintain ROHS3 compliance and MSL 1 moisture sensitivity rating, matching the BA4558F-E2 specifications. Verify that the selected substitute carries ROHS3 certification and MSL 1 rating to ensure compatibility with modern manufacturing processes and environmental regulations. All parts listed in this reference document meet these requirements.
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