RC4558IPWRG4 Equivalent & Substitute Parts

Part Overview

The RC4558IPWRG4 is a general purpose operational amplifier manufactured by Texas Instruments, featuring 2 differential circuits in an 8-TSSOP surface mount package. This device is classified as obsolete product status, which necessitates identification of active equivalent and substitute components for ongoing design support and procurement continuity. The RC4558IPWRG4 operates across a supply voltage range of 10V to 30V with a slew rate of 1.7V/µs and gain bandwidth product of 3 MHz, making it suitable for general purpose amplification applications requiring differential output configuration.

Substiute Parts

RC4558IPWRG4

Texas InstrumentsIn Stock: 1090RC4558IPWRG4 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 RC4558IPWRG4 is determined by compatibility across the following critical parameters: package type (8-TSSOP surface mount), number of circuits (2), mounting configuration, and electrical operating ranges. The substitute parts are grouped into two categories based on amplifier type and performance characteristics:

Category 1: Direct General Purpose Amplifier Substitutes

• RC4558IPWR (Texas Instruments): Identical electrical specifications and amplifier type; differs only in packaging format (Tape & Reel vs. standard packaging) and product status (Active vs. Obsolete)
• MC4558CPT (STMicroelectronics): General purpose amplifier with enhanced performance specifications; compatible package and circuit count; wider supply voltage range (4V to 40V); higher slew rate (2.2V/µs) and gain bandwidth product (5.5 MHz); lower input bias current (50 nA); higher output current per channel (20 mA)

Category 2: J-FET Amplifier Substitutes

• TL082CPT (STMicroelectronics): J-FET amplifier type with automotive qualification (AEC-Q100); compatible 8-TSSOP package; significantly higher slew rate (16V/µs); lower input bias current (20 pA); higher output current per channel (40 mA); extended supply voltage range (6V to 36V); operating temperature 0°C to 70°C
• TL082IPT (STMicroelectronics): J-FET amplifier type with automotive qualification (AEC-Q100); identical specifications to TL082CPT; extended operating temperature range (-40°C to 105°C)

Parameter Comparison

Engineering Selection Recommendations

RC4558IPWR (Primary Substitute) The RC4558IPWR is the manufacturer-recommended direct substitute for the RC4558IPWRG4. Both devices share identical electrical specifications, amplifier type classification, and operating parameters. The primary distinction is product status: RC4558IPWR maintains active status with significantly higher inventory availability (18,975 pcs vs. 1,061 pcs). Both components are ROHS3 compliant with MSL Level 1 rating. Selection of RC4558IPWR is appropriate for applications requiring exact electrical performance matching and direct pin-compatible replacement.

MC4558CPT (Performance-Enhanced Substitute) The MC4558CPT offers enhanced electrical performance while maintaining general purpose amplifier classification and 8-TSSOP package compatibility. This substitute provides higher slew rate (2.2V/µs vs. 1.7V/µs), increased gain bandwidth product (5.5 MHz vs. 3 MHz), lower input bias current (50 nA vs. 150 nA), and higher output current per channel (20 mA vs. 10 mA). The MC4558CPT supports wider supply voltage range (4V to 40V) and maintains active product status. Selection is appropriate for applications where enhanced performance specifications provide design margin or improved signal fidelity.

TL082CPT and TL082IPT (J-FET Substitutes with Automotive Qualification) The TL082CPT and TL082IPT represent J-FET amplifier alternatives with automotive-grade qualification (AEC-Q100). These devices provide significantly superior slew rate (16V/µs), extremely low input bias current (20 pA), and higher output current capability (40 mA per channel). Both maintain 8-TSSOP package compatibility and ROHS3 compliance. TL082IPT extends operating temperature range to -40°C to 105°C, providing broader thermal coverage. Selection is appropriate for applications requiring low input bias current characteristics, high-speed signal processing, or automotive-grade reliability qualification.

Frequently Asked Questions (FAQ)

Q: Can RC4558IPWR be used as a direct replacement for RC4558IPWRG4? A: Yes. RC4558IPWR is the manufacturer-recommended substitute with identical electrical specifications, amplifier type, circuit count, and 8-TSSOP package configuration. The only differences are packaging format (Tape & Reel) and product status (Active vs. Obsolete).

Q: What are the key differences between MC4558CPT and the original RC4558IPWRG4? A: MC4558CPT maintains general purpose amplifier classification and 8-TSSOP package compatibility but provides enhanced performance: higher slew rate (2.2V/µs vs. 1.7V/µs), increased gain bandwidth product (5.5 MHz vs. 3 MHz), lower input bias current (50 nA vs. 150 nA), and higher output current per channel (20 mA vs. 10 mA). Supply voltage range is also wider (4V to 40V vs. 10V to 30V).

Q: When should TL082CPT or TL082IPT be selected instead of RC4558IPWR? A: TL082 variants should be selected when applications require J-FET amplifier characteristics, specifically extremely low input bias current (20 pA vs. 150 nA), high slew rate (16V/µs vs. 1.7V/µs), or automotive-grade qualification (AEC-Q100). TL082IPT additionally provides extended operating temperature range (-40°C to 105°C).

Q: Are all substitute parts compatible with the 8-TSSOP package footprint? A: Yes. All substitute parts (RC4558IPWR, MC4558CPT, TL082CPT, TL082IPT) utilize 8-TSSOP package with identical 0.173" width and 4.40mm dimensions, ensuring PCB footprint compatibility.

Q: What is the significance of product status (Active vs. Obsolete)? A: Product status indicates manufacturing and supply continuity. Active status (RC4558IPWR, MC4558CPT, TL082CPT, TL082IPT) ensures ongoing availability and support. The obsolete status of RC4558IPWRG4 necessitates transition to active alternatives for long-term design sustainability.

Q: Do all substitute parts maintain ROHS3 compliance? A: Yes. All substitute parts (RC4558IPWR, MC4558CPT, TL082CPT, TL082IPT) are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the compliance profile of the original RC4558IPWRG4.

Q: What is the difference between TL082CPT and TL082IPT? A: Both devices share identical electrical specifications and J-FET amplifier characteristics. The primary difference is operating temperature range: TL082CPT operates 0°C to 70°C, while TL082IPT extends to -40°C to 105°C, providing broader thermal coverage for extended temperature applications.

Q: Can MC4558CPT be used in applications designed for RC4558IPWRG4 without circuit modifications? A: MC4558CPT provides enhanced performance specifications within the same general purpose amplifier category and 8-TSSOP package. Pin compatibility and functional operation are maintained. However, the wider supply voltage range (4V to 40V vs. 10V to 30V) and different operating temperature range (0°C to 70°C vs. -40°C to 85°C) should be verified against specific application requirements.

Q: What inventory availability exists for substitute parts? A: RC4558IPWR: 18,975 pcs; MC4558CPT: 24,031 pcs; TL082CPT: 2,200 pcs; TL082IPT: 5,350 pcs. All substitutes maintain significantly higher inventory levels than the obsolete RC4558IPWRG4 (1,061 pcs).