RC4558IPW Equivalent & Substitute Parts

Part Overview

The RC4558IPW is a general-purpose operational amplifier manufactured by Texas Instruments, featuring dual circuits in an 8-TSSOP surface-mount package. This device is classified as Last Time Buy, indicating discontinued production with limited remaining inventory. The RC4558IPW operates across a wide supply voltage range of 10V to 30V and is suitable for applications requiring dual-channel amplification with differential output configuration.

Identification of substitute parts is necessary due to the Last Time Buy status of the RC4558IPW. Alternative components with equivalent or enhanced electrical characteristics and identical package specifications are available to ensure design continuity and long-term component availability.

Substiute Parts

RC4558IPW

Texas InstrumentsIn Stock: 1941RC4558IPW Datasheet

Current PartRFQ

RC4558IPWR

Texas InstrumentsIn Stock: 19061RC4558IPWR Datasheet

MFR RecommendedRFQ

MC4558CPT

STMicroelectronicsIn Stock: 24046MC4558CPT Datasheet

MFR RecommendedRFQ

TL082CPT

STMicroelectronicsIn Stock: 2264TL082CPT Datasheet

MFR RecommendedRFQ

TL082IPT

STMicroelectronicsIn Stock: 5452TL082IPT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC4558IPW is determined by compatibility across the following critical parameters:

Package Compatibility: All substitute parts must utilize the 8-TSSOP surface-mount package with identical 0.173" (4.40mm) width specification to ensure PCB layout compatibility without redesign.

Electrical Performance Envelope: Substitute parts must operate within the supply voltage range requirements and maintain functional amplification characteristics. The RC4558IPW operates from 10V to 30V; substitutes with broader or equivalent supply ranges are acceptable.

Circuit Configuration: All candidates maintain dual-circuit (2-channel) configuration with surface-mount technology.

Compliance Standards: All substitute parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage protocols.

Amplifier Classification: Substitutes are grouped by amplifier type (General Purpose or J-FET), as this classification determines input impedance, bias current characteristics, and noise performance.

Parameter Comparison

Engineering Selection Recommendations

RC4558IPWR (Texas Instruments): This part is the direct equivalent to the RC4558IPW, differing only in packaging format (Tape & Reel versus Tube). The RC4558IPWR maintains identical electrical specifications, supply voltage range, and operating temperature range. Product status is Active with significantly higher inventory availability (18,975 units). This substitute is recommended for applications requiring exact electrical performance matching and continued component availability from the original manufacturer.

MC4558CPT (STMicroelectronics): This general-purpose dual operational amplifier offers enhanced electrical performance relative to the RC4558IPW, including higher slew rate (2.2 V/µs versus 1.7 V/µs), increased gain bandwidth product (5.5 MHz versus 3 MHz), and higher output current capability (20 mA versus 10 mA per channel). The MC4558CPT operates across a broader supply voltage range (4V to 40V) and maintains Active product status. This substitute is suitable for applications where improved performance margins are beneficial. Operating temperature range is restricted to 0°C to 70°C, which may limit use in extended temperature applications.

TL082CPT and TL082IPT (STMicroelectronics): These J-FET operational amplifiers represent a different amplifier topology with significantly different input characteristics. Both devices feature extremely low input bias current (20 pA versus 150 nA), higher slew rate (16 V/µs), and greater output current capability (40 mA per channel). The TL082CPT is qualified to AEC-Q100 automotive standards with operating temperature range of 0°C to 70°C. The TL082IPT extends the operating temperature range to -40°C to 105°C, providing broader temperature coverage than the RC4558IPW. These substitutes are applicable to designs where low input bias current and high slew rate are advantageous. Both maintain Active product status and ROHS3 compliance.

Packaging Consideration: The RC4558IPW is supplied in Tube packaging, while all substitute parts are available in Tape & Reel format. This difference affects component handling and automated assembly processes but does not impact electrical performance or PCB-level compatibility.

Frequently Asked Questions (FAQ)

Q: Can the RC4558IPWR be used as a direct replacement for the RC4558IPW?

A: Yes. The RC4558IPWR is electrically identical to the RC4558IPW across all specified parameters. The only difference is packaging format (Tape & Reel versus Tube). Both parts operate identically in circuit applications and are pin-compatible in the 8-TSSOP package.

Q: What are the key differences between the RC4558IPW and MC4558CPT?

A: The MC4558CPT offers enhanced performance with higher slew rate (2.2 V/µs versus 1.7 V/µs), increased gain bandwidth product (5.5 MHz versus 3 MHz), and higher output current per channel (20 mA versus 10 mA). The MC4558CPT also operates across a broader supply voltage range (4V to 40V). However, the operating temperature range is narrower (0°C to 70°C versus -40°C to 85°C). Both are general-purpose amplifiers with identical package specifications.

Q: When should J-FET amplifiers (TL082CPT or TL082IPT) be selected over general-purpose types?

A: J-FET amplifiers are selected when applications require extremely low input bias current (20 pA versus 150 nA for general-purpose types) or high slew rate (16 V/µs versus 1.7 V/µs to 2.2 V/µs). These characteristics are beneficial in high-impedance signal conditioning, precision instrumentation, and fast-settling applications. The trade-off is higher input offset voltage (3 mV versus 0.5 mV to 1 mV).

Q: Are all substitute parts compatible with the same PCB layout as the RC4558IPW?

A: Yes. All substitute parts utilize the 8-TSSOP surface-mount package with identical 0.173" (4.40mm) width specification. PCB footprints and pin assignments are compatible across all listed substitutes without layout modification.

Q: What is the significance of the Last Time Buy status for the RC4558IPW?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of the RC4558IPW. Current inventory (1,896 units) represents the final available stock. Once depleted, the part will no longer be available from the manufacturer. Substitution planning is necessary for long-term design support and production continuity.

Q: Does the TL082IPT offer advantages over the TL082CPT?

A: The TL082IPT extends the operating temperature range to -40°C to 105°C, compared to 0°C to 70°C for the TL082CPT. All other electrical specifications are identical. The TL082IPT is suitable for applications requiring extended temperature operation, including industrial and automotive environments with wide temperature variation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (RC4558IPWR, MC4558CPT, TL082CPT, and TL082IPT) maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing processes and environmental regulations.

Q: What supply voltage range must be verified when substituting parts?

A: The RC4558IPW operates from 10V to 30V. The RC4558IPWR maintains this identical range. The MC4558CPT operates from 4V to 40V (broader range). The TL082CPT and TL082IPT operate from 6V to 36V. Verify that the selected substitute's supply voltage range encompasses the application's power supply specifications.