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BA4558FVT-GE2 Equivalent & Substitute Parts
Part Overview
The BA4558FVT-GE2 is a general-purpose operational amplifier manufactured by Rohm Semiconductor, configured as a dual-channel (2 circuit) device in an 8-TSSOP surface mount package. This component operates across a wide supply voltage range of 8 V to 30 V and is designed for general-purpose amplification applications requiring moderate bandwidth and slew rate performance. The part is currently in active production status with 3,800 units in stock.
Substitute parts are necessary when the BA4558FVT-GE2 becomes unavailable, reaches end-of-life status, or when design requirements necessitate alternative electrical characteristics such as lower supply voltage minimums, higher operating temperature ranges, or enhanced performance metrics.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 2 | — |
| Slew Rate | 1 | V/µs |
| Gain Bandwidth Product | 2 | MHz |
| Current - Input Bias | 60 | nA |
| Voltage - Input Offset | 500 | µV |
| Current - Supply | 3 | mA |
| Voltage - Supply Span (Min) | 8 | V |
| Voltage - Supply Span (Max) | 30 | V |
| Operating Temperature | -40 to 85 | °C |
| Package / Case | 8-TSSOP (0.173", 4.40mm Width) | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the BA4558FVT-GE2 is determined by the following critical parameters:
Package Compatibility: All substitute parts must use the 8-TSSOP surface mount package with identical 0.173" (4.40mm) width to ensure PCB footprint compatibility.
Circuit Configuration: The dual-channel (2 circuit) configuration is mandatory for direct substitution.
Supply Voltage Range: The BA4558FVT-GE2 operates from 8 V to 30 V minimum. Substitute parts with lower minimum supply voltages (3 V) are compatible in applications where the 8 V minimum is not a constraint. Maximum supply voltage of 30 V is consistent across all candidates.
Amplifier Type: The BA4558FVT-GE2 is a general-purpose amplifier. Substitute parts may include J-FET type amplifiers, which offer different input bias current characteristics but maintain general-purpose functionality.
Performance Metrics: Slew rate (1 V/µs), gain bandwidth product (2 MHz), input bias current (60 nA), and input offset voltage (500 µV) define the performance envelope. Substitute parts with equal or superior performance metrics are acceptable.
Operating Temperature: The BA4558FVT-GE2 operates from -40°C to 85°C. Substitute parts with extended temperature ranges (up to 125°C) provide additional operational margin.
Product Status and Compliance: Active status parts are preferred. RoHS3 compliance and MSL Level 1 are consistent across all candidates.
Parameter Comparison
| Parameter | BA4558FVT-GE2 | LM258PT | LM258WYPT | LM258YPT | LM2904WYPT | LM358PT | RC4558IPWR | TL062IPWR |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Rohm | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | Rohm | Texas Instruments | Texas Instruments |
| Amplifier Type | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | J-FET |
| Number of Circuits | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Slew Rate (V/µs) | 1 | 0.6 | 0.6 | 0.6 | 0.6 | 0.3 | 1.7 | 3.5 |
| Gain Bandwidth Product (MHz) | 2 | 1.1 | 1.1 | 1.1 | 1.1 | 0.8 | 3 | 1 |
| Current - Input Bias (nA) | 60 | 20 | 20 | 20 | 20 | 20 | 150 | 0.03 |
| Voltage - Input Offset (µV) | 500 | 5000 | 2000 | 5000 | 2000 | 1000 | 500 | 3000 |
| Current - Supply (mA) | 3 | 0.7 | 0.7 | 0.7 | 0.7 | 0.6 | 2.5 | 0.2 |
| Voltage - Supply Span Min (V) | 8 | 3 | 3 | 3 | 3 | 3 | 10 | 10 |
| Voltage - Supply Span Max (V) | 30 | 30 | 30 | 30 | 30 | 32 | 30 | 30 |
| Operating Temperature (°C) | -40 to 85 | -40 to 105 | -40 to 105 | -40 to 105 | -40 to 125 | -40 to 85 | -40 to 85 | -40 to 85 |
| Package / Case | 8-TSSOP | 8-TSSOP | 8-TSSOP | 8-TSSOP | 8-TSSOP | 8-TSSOP | 8-TSSOP | 8-TSSOP |
| Product Status | Active | Active | Active | Active | Active | Obsolete | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Substitutes (Active Status, Highest Compatibility):
The LM258PT, LM258WYPT, and LM258YPT from STMicroelectronics are direct functional equivalents with active product status. These parts maintain the dual-channel general-purpose amplifier configuration and 8-TSSOP package. The LM258 series operates from 3 V minimum supply voltage, providing broader application flexibility than the BA4558FVT-GE2. All three variants are AEC-Q100 qualified for automotive applications. The primary trade-off is reduced slew rate (0.6 V/µs versus 1 V/µs) and lower gain bandwidth product (1.1 MHz versus 2 MHz).
Extended Temperature Alternative:
The LM2904WYPT extends the operating temperature range to -40°C to 125°C while maintaining the 8-TSSOP package and dual-channel configuration. This part is suitable for applications requiring enhanced thermal performance. It carries AEC-Q100 automotive qualification and active product status.
High-Performance Alternative:
The RC4558IPWR from Texas Instruments offers superior slew rate (1.7 V/µs) and gain bandwidth product (3 MHz) compared to the BA4558FVT-GE2. This part maintains active product status and the 8-TSSOP package. The minimum supply voltage requirement is 10 V, which is compatible with the BA4558FVT-GE2 operating range. The RC4558IPWR is configured with differential output type.
Low Input Bias Current Alternative:
The TL062IPWR is a J-FET amplifier with exceptionally low input bias current (30 pA versus 60 nA). This part is suitable for applications requiring minimal input loading. It maintains active product status, the 8-TSSOP package, and operates across -40°C to 85°C. The minimum supply voltage is 10 V. Slew rate is 3.5 V/µs, providing enhanced transient response.
Obsolete Part (Not Recommended):
The LM358PT from Rohm Semiconductor carries obsolete product status and should not be selected for new designs despite 59,600 units in inventory.
Frequently Asked Questions (FAQ)
Q: Can the LM258PT directly replace the BA4558FVT-GE2 in existing designs?
A: The LM258PT is functionally compatible in applications where the 8 V minimum supply voltage of the BA4558FVT-GE2 is not a design constraint. The LM258PT operates from 3 V minimum, allowing operation in lower-voltage systems. Both parts use the 8-TSSOP package with identical footprints. The LM258PT has lower slew rate (0.6 V/µs versus 1 V/µs) and lower gain bandwidth product (1.1 MHz versus 2 MHz), which may affect circuit performance in bandwidth-sensitive applications.
Q: What is the difference between the LM258PT, LM258WYPT, and LM258YPT variants?
A: All three are LM258 base product variants from STMicroelectronics with identical electrical specifications. The primary differences are packaging format (Cut Tape & Digi-Reel for LM258PT versus Tape & Reel for LM258WYPT and LM258YPT) and input offset voltage tolerance (5 mV for LM258PT and LM258YPT versus 2 mV for LM258WYPT). All three carry AEC-Q100 automotive qualification and active product status.
Q: Is the TL062IPWR suitable for applications requiring low input bias current?
A: Yes. The TL062IPWR is a J-FET amplifier with input bias current of 30 pA, approximately 2,000 times lower than the BA4558FVT-GE2 (60 nA). This characteristic makes it suitable for high-impedance input applications. The TL062IPWR maintains the 8-TSSOP package and operates across -40°C to 85°C. The minimum supply voltage is 10 V, which is within the BA4558FVT-GE2 operating range.
Q: Why does the LM358PT show obsolete status despite high inventory?
A: Product status reflects manufacturer production and support status, not inventory availability. Obsolete parts are no longer manufactured and receive no design support or process improvements. Existing inventory may remain available for a limited time, but new designs should not depend on obsolete parts.
Q: Can the RC4558IPWR be used in applications requiring the full 8 V to 30 V supply range of the BA4558FVT-GE2?
A: The RC4558IPWR operates from 10 V minimum supply voltage, which is higher than the BA4558FVT-GE2 minimum of 8 V. In applications operating below 10 V, the RC4558IPWR is not suitable. For applications operating at 10 V and above, the RC4558IPWR is compatible and offers superior performance with higher slew rate (1.7 V/µs) and gain bandwidth product (3 MHz).
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All substitute parts listed carry RoHS3 compliance status, matching the BA4558FVT-GE2. All parts also carry MSL Level 1 (Unlimited) moisture sensitivity rating.
Q: What is the significance of AEC-Q100 qualification on the LM258 and LM2904 variants?
A: AEC-Q100 qualification indicates the part meets automotive industry reliability and quality standards. This certification is relevant for automotive applications but does not affect general-purpose industrial or consumer applications. The BA4558FVT-GE2 does not carry AEC-Q100 qualification.
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