RC4558DRG4 Equivalent & Substitute Parts

Part Overview

The RC4558DRG4 is a general-purpose operational amplifier manufactured by Texas Instruments, configured as a dual-channel (2 circuit) differential output device in an 8-SOIC surface mount package. This part is classified as Last Time Buy, indicating discontinued production with limited remaining inventory (1584 pcs). The RC4558DRG4 operates across a 10V to 30V supply span with a slew rate of 1.7V/µs and 3 MHz gain bandwidth product, suitable for general-purpose analog signal processing applications.

Identification of equivalent and substitute parts is necessary due to the Last Time Buy status. Alternative components with matching or superior electrical characteristics and compatible packaging enable design continuity and long-term supply chain reliability.

Key Parameters

Parameter	RC4558DRG4 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-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution logic for the RC4558DRG4 is based on the following critical parameters:

Primary Compatibility Criteria:

Number of Circuits: 2 (dual-channel requirement)
Package / Case: 8-SOIC form factor (0.154", 3.90mm Width) for direct PCB compatibility
Mounting Type: Surface Mount
Voltage - Supply Span: Minimum 10V to Maximum 30V overlap
Current - Output / Channel: Minimum 10 mA capability

Secondary Performance Criteria:

Slew Rate: 1.7V/µs or greater
Gain Bandwidth Product: 3 MHz or greater
Current - Input Bias: 150 nA or lower (lower is superior)
Voltage - Input Offset: 500 µV or lower (lower is superior)

Substitute parts are grouped into two categories:

Category A - Direct Functional Equivalents (General Purpose Amplifiers): Parts with matching amplifier type, dual-channel configuration, and compatible electrical specifications within the RC4558DRG4 operating envelope.

Category B - Enhanced Performance Alternatives (J-FET Amplifiers): Parts with superior slew rate, lower input bias current, and extended operating temperature range, suitable for applications requiring higher performance margins.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (nA)	Input Offset (µV)	Supply Min (V)	Supply Max (V)	Output/Ch (mA)	Temp Range (°C)	Package	Status
RC4558DRG4	Texas Instruments	General Purpose	1.7	3	150	500	10	30	10	0 ~ 70	8-SOIC	Last Time Buy
RC4558DR	Texas Instruments	General Purpose	1.7	3	150	500	10	30	10	0 ~ 70	8-SOIC	Active
ADA4004-2ARZ	Analog Devices Inc.	General Purpose	2.7	12	40	40	10	30	10	-40 ~ 125	8-SOIC	Active
ADA4004-2ARZ-R7	Analog Devices Inc.	General Purpose	2.7	12	40	40	10	30	10	-40 ~ 125	8-SOIC	Active
ADA4004-2ARZ-RL	Analog Devices Inc.	General Purpose	2.7	12	40	40	10	30	10	-40 ~ 125	8-SOIC	Active
ADTL082ARZ	Analog Devices Inc.	J-FET	20	5	0.002	1500	8	36	27	-40 ~ 125	8-SOIC	Active
AS358MTR-G1	Diodes Incorporated	General Purpose	—	—	20	2000	3	36	40	-40 ~ 85	8-SOIC	Active
BA4558F-E2	Rohm Semiconductor	General Purpose	1.2	2	60	500	8	30	10	-40 ~ 85	8-SOIC	Active
BA4558RF-E2	Rohm Semiconductor	General Purpose	1	2	60	500	8	30	10	-40 ~ 105	8-SOIC	Active
LF253DT	STMicroelectronics	J-FET	16	4	0.02	3000	6	36	40	-40 ~ 105	8-SOIC	Active
LF353DT	STMicroelectronics	J-FET	16	4	0.02	3000	6	36	40	0 ~ 70	8-SOIC	Active

Engineering Selection Recommendations

Tier 1 - Recommended Direct Replacement:

RC4558DR (Texas Instruments) is the primary recommended substitute. This part maintains identical electrical specifications to the RC4558DRG4 (1.7V/µs slew rate, 3 MHz GBW, 150 nA input bias, 500 µV input offset) with matching 10V to 30V supply span and 0°C to 70°C operating temperature. The RC4558DR is in Active product status with 105,400 pcs inventory, ensuring long-term availability. Both parts are ROHS3 compliant with MSL 1 rating. The only difference is packaging format (Cut Tape & Digi-Reel® vs. Cut Tape & Digi-Reel®), which does not affect electrical performance or PCB compatibility.

Tier 2 - Enhanced Performance Alternatives (General Purpose Category):

ADA4004-2ARZ, ADA4004-2ARZ-R7, and ADA4004-2ARZ-RL (Analog Devices Inc., iPolar® series) provide superior electrical performance with 2.7V/µs slew rate (59% improvement), 12 MHz gain bandwidth product (300% improvement), and significantly lower input bias current (40 nA vs. 150 nA). These parts maintain the 10V to 30V supply span and 10 mA output current per channel. Extended operating temperature range (-40°C to 125°C) provides additional margin. All three variants are in Active status with substantial inventory (7,241 to 3,437 pcs). Packaging variants differ (Tube, Cut Tape & Digi-Reel®, Tape & Reel) but all use 8-SOIC form factor. ROHS3 compliance and MSL 1 rating match the original part.

Tier 3 - J-FET Amplifier Alternatives (Enhanced Performance):

ADTL082ARZ (Analog Devices Inc.), LF253DT, and LF353DT (STMicroelectronics) offer J-FET input architecture with dramatically superior input bias current (2 pA to 20 pA range vs. 150 nA), enabling applications requiring extremely high input impedance. Slew rates range from 16V/µs to 20V/µs (9.4x to 11.8x improvement). These parts support extended supply voltage range (8V to 36V minimum) and higher output current per channel (27 mA to 40 mA). Operating temperature ranges extend to -40°C to 125°C. All are in Active status with adequate inventory. ROHS3 compliance and MSL 1 rating maintained. Note: LF353DT operating temperature is limited to 0°C to 70°C, matching the original part's range.

Tier 4 - Budget Alternative:

AS358MTR-G1 (Diodes Incorporated) provides lowest-cost general-purpose dual-channel amplifier with 8-SOIC packaging. This part supports extended supply voltage range (3V to 36V) and higher output current (40 mA per channel). However, input offset voltage is significantly higher (2000 µV vs. 500 µV), and slew rate data is not provided. Operating temperature range is -40°C to 85°C. Inventory is substantial (300,300 pcs). MSL rating is 3 (168 Hours), requiring controlled storage conditions. Selection of this part is appropriate only for applications where input offset voltage and slew rate are non-critical.

Tier 5 - Marginal Compatibility:

BA4558F-E2 and BA4558RF-E2 (Rohm Semiconductor) are general-purpose dual-channel amplifiers with matching input offset voltage (500 µV) but reduced slew rate (1.2V/µs and 1V/µs respectively) and lower gain bandwidth product (2 MHz vs. 3 MHz). Supply voltage minimum is reduced to 8V. These parts are suitable only for applications where reduced performance is acceptable. BA4558RF-E2 offers extended operating temperature to 105°C. Both are in Active status with high inventory (165,200 and 35,200 pcs respectively).

Frequently Asked Questions (FAQ)

Q1: Can RC4558DR be used as a direct drop-in replacement for RC4558DRG4?

A: Yes. RC4558DR is electrically and functionally identical to RC4558DRG4. Both parts have 1.7V/µs slew rate, 3 MHz gain bandwidth product, 150 nA input bias current, and 500 µV input offset voltage. Both support 10V to 30V supply span and 0°C to 70°C operating temperature. The 8-SOIC package dimensions are identical (0.154", 3.90mm Width). Packaging format differences (Cut Tape & Digi-Reel®) do not affect electrical performance or PCB compatibility. RC4558DR is in Active status with 105,400 pcs available inventory.

Q2: What are the key differences between general-purpose and J-FET amplifier substitutes?

A: General-purpose amplifiers (RC4558DR, ADA4004-2ARZ series, BA4558 series, AS358MTR-G1) use bipolar input stages with input bias currents in the nanoampere range (20 nA to 150 nA). J-FET amplifiers (ADTL082ARZ, LF253DT, LF353DT) use field-effect transistor input stages with input bias currents in the picoampere range (0.002 pA to 20 pA), providing extremely high input impedance. J-FET amplifiers also offer significantly higher slew rates (16V/µs to 20V/µs vs. 1.7V/µs to 2.7V/µs). Selection depends on application requirements for input impedance and slew rate performance.

Q3: Are all substitute parts ROHS3 compliant and MSL 1 rated?

A: All recommended substitute parts are ROHS3 compliant. However, MSL ratings differ: RC4558DR, ADA4004 series, ADTL082ARZ, BA4558 series, LF253DT, and LF353DT are all MSL 1 (Unlimited moisture sensitivity). AS358MTR-G1 is MSL 3 (168 Hours), requiring controlled storage and handling procedures. For applications with strict moisture sensitivity requirements, avoid AS358MTR-G1.

Q4: Which substitute part offers the best performance improvement over RC4558DRG4?

A: ADTL082ARZ provides the most significant performance improvement with 20V/µs slew rate (11.8x improvement), 5 MHz gain bandwidth product (67% improvement), and 2 pA input bias current (75,000x improvement). However, this J-FET amplifier has higher input offset voltage (1.5 mV vs. 500 µV). For applications prioritizing slew rate and input impedance, ADTL082ARZ is optimal. For applications requiring low input offset voltage with improved slew rate, ADA4004-2ARZ series offers 2.7V/µs slew rate (59% improvement) and 40 µV input offset voltage (92% improvement).

Q5: Can I use AS358MTR-G1 as a cost-effective substitute?

A: AS358MTR-G1 is suitable only for cost-sensitive applications where input offset voltage and slew rate are non-critical. This part has 2000 µV input offset voltage (4x higher than RC4558DRG4) and undocumented slew rate. Operating temperature range is -40°C to 85°C (narrower than extended-range alternatives). MSL 3 rating requires controlled storage. Use AS358MTR-G1 only when cost reduction is the primary design objective and performance margins are substantial.

Q6: What is the difference between ADA4004-2ARZ, ADA4004-2ARZ-R7, and ADA4004-2ARZ-RL?

A: All three variants are electrically identical with 2.7V/µs slew rate, 12 MHz gain bandwidth product, 40 nA input bias current, and 40 µV input offset voltage. Differences are packaging format only: ADA4004-2ARZ is supplied in Tube packaging (7,241 pcs inventory), ADA4004-2ARZ-R7 is Cut Tape & Digi-Reel® format (3,437 pcs inventory), and ADA4004-2ARZ-RL is Tape & Reel format (3,582 pcs inventory). Selection depends on assembly process requirements and available inventory.

Q7: Why does LF353DT have the same specifications as LF253DT but different operating temperature?

A: LF353DT is the commercial-grade variant with 0°C to 70°C operating temperature, matching RC4558DRG4's range. LF253DT is the extended-temperature variant with -40°C to 105°C operating temperature. Both parts have identical electrical specifications (16V/µs slew rate, 4 MHz gain bandwidth product, 20 pA input bias current, 3 mV input offset voltage). Selection depends on application temperature requirements. For applications matching RC4558DRG4's 0°C to 70°C range, LF353DT is appropriate. For extended-temperature applications, LF253DT is required.

Q8: Is the 8-SOIC package compatible across all substitute parts?

A: All substitute parts use 8-SOIC surface mount package with 0.154" (3.90mm) width, except BA4558F-E2 and BA4558RF-E2, which use 8-SOIC package with 0.173" (4.40mm) width. The wider package dimension may require PCB layout verification for BA4558 variants. All other substitutes are directly compatible with RC4558DRG4 PCB footprints without layout modification.

Q9: Which substitute part has the longest operating temperature range?

A: ADA4004-2ARZ, ADA4004-2ARZ-R7, ADA4004-2ARZ-RL, ADTL082ARZ, and LF253DT all support -40°C to 125°C operating temperature range, providing 55°C extension above RC4558DRG4's 0°C to 70°C range. LF353DT is limited to 0°C to 70°C, matching the original part. AS358MTR-G1 supports -40°C to 85°C. BA4558F-E2 supports -40°C to 85°C, and BA4558RF-E2 supports -40°C to 105°C.

Q10: What is the inventory status of each substitute part?

A: RC4558DR has the highest inventory (105,400 pcs). AS358MTR-G1 has 300,300 pcs. BA4558F-E2 has 165,200 pcs. ADA4004-2ARZ has 7,241 pcs. LF253DT has 72,138 pcs. BA4558RF-E2 has 35,200 pcs. ADA4004-2ARZ-RL has 3,582 pcs. ADA4004-2ARZ-R7 has 3,437 pcs. ADTL082ARZ has 13,125 pcs. LF353DT has 6,520 pcs. For long-term supply chain security, RC4558DR, AS358MTR-G1, and BA4558F-E2 offer the highest inventory levels.

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