RC4558PW Equivalent & Substitute Parts

Part Overview

The RC4558PW 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 of 5300 pieces. The RC4558PW operates across a 10V to 30V supply range with a 3 MHz gain-bandwidth product and 1.7V/µs slew rate, suitable for general-purpose analog signal processing applications.

Substitute parts are necessary due to the Last Time Buy status of the RC4558PW. Alternative equivalent devices provide continued design support and extended product lifecycle options while maintaining functional compatibility within specified electrical and mechanical parameters.

Key Parameters

Parameter	RC4558PW Value
Amplifier Type	General Purpose
Number of Circuits	2
Output Type	Differential
Slew Rate	1.7V/µs
Gain Bandwidth Product	3 MHz
Current - Input Bias	150 nA
Voltage - Input Offset	500 µV
Current - Supply	2.5mA (x2 Channels)
Current - Output / Channel	10 mA
Voltage - Supply Span (Min)	10 V
Voltage - Supply Span (Max)	30 V
Operating Temperature	0°C ~ 70°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 logic for the RC4558PW is based on the following critical parameters: dual-circuit configuration, 8-TSSOP package footprint compatibility, surface-mount technology, and electrical performance within the specified supply voltage range (10V to 30V minimum).

Primary Substitutes (Highest Compatibility): RC4558PWR qualifies as a primary substitute, sharing identical electrical specifications, package type, and manufacturer. The only difference is packaging format (Tape & Reel versus Tube), which does not affect functional performance.

Secondary Substitutes (Functional Equivalents with Parameter Variations): BA4558RFV-E2, MC4558CPT, TL082CPT, and TL082IPT are functional equivalents that maintain the dual-circuit, 8-TSSOP configuration but exhibit variations in slew rate, gain-bandwidth product, input bias current, and supply voltage ranges. These variations must be evaluated against specific application requirements.

Limited Compatibility Substitute: AS358GTR-E1 provides dual-circuit functionality in 8-TSSOP packaging but operates at lower supply voltages (3V minimum) and exhibits significantly different electrical characteristics, including lower slew rate specification and higher input offset voltage.

Parameter Comparison

Parameter	RC4558PW	RC4558PWR	BA4558RFV-E2	MC4558CPT	TL082CPT	TL082IPT	AS358GTR-E1
Manufacturer	Texas Instruments	Texas Instruments	Rohm Semiconductor	STMicroelectronics	STMicroelectronics	STMicroelectronics	Diodes Incorporated
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	J-FET	J-FET	General Purpose
Number of Circuits	2	2	2	2	2	2	2
Slew Rate	1.7V/µs	1.7V/µs	1V/µs	2.2V/µs	16V/µs	16V/µs	—
Gain Bandwidth Product	3 MHz	3 MHz	2 MHz	5.5 MHz	4 MHz	4 MHz	—
Current - Input Bias	150 nA	150 nA	60 nA	50 nA	20 pA	20 pA	20 nA
Voltage - Input Offset	500 µV	500 µV	500 µV	1 mV	3 mV	3 mV	2 mV
Current - Supply	2.5mA (x2)	2.5mA (x2)	3mA	2.3mA	1.4mA	1.4mA	700µA (x2)
Current - Output / Channel	10 mA	10 mA	10 mA	20 mA	40 mA	40 mA	40 mA
Voltage - Supply Span (Min)	10 V	10 V	8 V	4 V	6 V	6 V	3 V
Voltage - Supply Span (Max)	30 V	30 V	30 V	40 V	36 V	36 V	36 V
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 105°C	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 105°C	-40°C ~ 85°C
Package / Case	8-TSSOP	8-TSSOP	8-LSSOP	8-TSSOP	8-TSSOP	8-TSSOP	8-TSSOP
Packaging Format	Tube	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)
Product Status	Last Time Buy	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)

Engineering Selection Recommendations

RC4558PWR (Texas Instruments): This is the recommended primary substitute for RC4558PW. Both devices are manufactured by Texas Instruments with identical electrical specifications and operating parameters. The only distinction is packaging format: RC4558PWR is supplied in Tape & Reel format with Active product status, ensuring long-term availability. This substitute provides direct functional replacement with no design modifications required. Current inventory of 17037 pieces supports production continuity.

BA4558RFV-E2 (Rohm Semiconductor): This substitute maintains electrical compatibility within the 8V to 30V supply range and shares the 500µV input offset voltage specification. The slew rate is reduced to 1V/µs and gain-bandwidth product to 2 MHz, which may impact high-frequency performance. Operating temperature range extends to -40°C to 105°C. This option is suitable for applications where lower slew rate is acceptable and extended temperature operation is required. MSL rating of 1 (Unlimited) matches the original device.

MC4558CPT (STMicroelectronics): This substitute offers enhanced performance with 2.2V/µs slew rate and 5.5 MHz gain-bandwidth product, exceeding original specifications. Supply voltage range extends to 4V minimum and 40V maximum, providing broader operational flexibility. Output current per channel increases to 20 mA. This device is suitable for applications requiring higher performance margins. Active product status with 24031 pieces in inventory ensures availability.

TL082CPT and TL082IPT (STMicroelectronics): These J-FET amplifiers provide significantly higher slew rate (16V/µs) and lower input bias current (20 pA) compared to the RC4558PW. These devices are qualified to AEC-Q100 automotive standards. TL082IPT extends operating temperature to -40°C to 105°C. These substitutes are appropriate for applications requiring ultra-low input bias current or high-speed signal processing. Supply voltage range is 6V to 36V.

AS358GTR-E1 (Diodes Incorporated): This substitute operates at lower minimum supply voltage (3V) with significantly reduced supply current (700µA). However, slew rate and gain-bandwidth product specifications are not provided. Input bias current is 20 nA and input offset voltage is 2 mV. MSL rating of 3 (168 Hours) requires controlled storage conditions. This option is limited to applications with relaxed performance requirements and low-voltage operation.

Frequently Asked Questions (FAQ)

Q: Can RC4558PWR be used as a direct replacement for RC4558PW without circuit modifications?

A: Yes. RC4558PWR is manufactured by Texas Instruments with identical electrical specifications, operating parameters, and 8-TSSOP package footprint. The only difference is packaging format (Tape & Reel versus Tube), which does not affect functional performance or circuit operation.

Q: What are the key differences between RC4558PW and BA4558RFV-E2?

A: Both devices operate within the 8V to 30V supply range and share the 500µV input offset voltage. BA4558RFV-E2 has a lower slew rate (1V/µs versus 1.7V/µs) and reduced gain-bandwidth product (2 MHz versus 3 MHz). BA4558RFV-E2 offers extended operating temperature range (-40°C to 105°C) and is suitable for applications where lower slew rate is acceptable.

Q: Why would MC4558CPT be selected over RC4558PW?

A: MC4558CPT provides enhanced performance specifications: 2.2V/µs slew rate (versus 1.7V/µs), 5.5 MHz gain-bandwidth product (versus 3 MHz), and 20 mA output current per channel (versus 10 mA). Supply voltage range extends to 4V minimum and 40V maximum. This device is selected for applications requiring higher performance margins or broader supply voltage compatibility.

Q: What is the significance of the TL082 J-FET architecture compared to general-purpose amplifiers?

A: TL082CPT and TL082IPT employ J-FET input stages, resulting in extremely low input bias current (20 pA versus 150 nA for RC4558PW) and high slew rate (16V/µs). These characteristics are beneficial for high-impedance signal sources and high-frequency applications. Both devices carry AEC-Q100 automotive qualification.

Q: Is AS358GTR-E1 suitable as a substitute for all RC4558PW applications?

A: No. AS358GTR-E1 operates at lower minimum supply voltage (3V) but exhibits significantly different electrical characteristics: 20 nA input bias current, 2 mV input offset voltage, and 700µA supply current. Slew rate and gain-bandwidth product are not specified. MSL rating of 3 requires controlled storage. This device is limited to applications with relaxed performance requirements and low-voltage operation.

Q: What packaging considerations apply when substituting RC4558PW?

A: RC4558PW is supplied in Tube packaging. Most substitutes (RC4558PWR, MC4558CPT, TL082CPT, TL082IPT, AS358GTR-E1) are supplied in Tape & Reel format. BA4558RFV-E2 is supplied in Cut Tape and Digi-Reel format. All devices maintain the 8-TSSOP footprint (0.173", 4.40mm Width) for PCB compatibility. Packaging format affects handling and automated assembly processes but not electrical performance.

Q: How does the Last Time Buy status of RC4558PW affect substitute selection?

A: RC4558PW is designated Last Time Buy with 5300 pieces in inventory, indicating discontinued production. All recommended substitutes carry Active product status with significantly higher inventory levels, ensuring long-term design support and production continuity. RC4558PWR is the preferred substitute for immediate replacement due to identical specifications and Texas Instruments manufacturing.

Q: What compliance certifications are relevant for substitute selection?

A: All listed substitutes are ROHS3 compliant and REACH unaffected. TL082CPT and TL082IPT carry AEC-Q100 automotive qualification. Moisture sensitivity levels vary: RC4558PW, RC4558PWR, BA4558RFV-E2, MC4558CPT, TL082CPT, and TL082IPT are MSL 1 (Unlimited); AS358GTR-E1 is MSL 3 (168 Hours). Selection depends on application requirements and storage environment specifications.

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