RC4580IDRG4 Equivalent & Substitute Parts

Part Overview

The RC4580IDRG4 is a dual-channel audio operational amplifier manufactured by Texas Instruments in 8-SOIC surface mount packaging. This integrated circuit is classified as an audio amplifier with two independent circuits, designed for audio signal processing applications requiring moderate bandwidth and low noise characteristics.

The RC4580IDRG4 is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability for production, and support long-term product maintenance and repair operations. Active alternatives with compatible electrical and mechanical specifications are available from multiple manufacturers.

Key Parameters

Parameter	RC4580IDRG4 Value	Unit
Amplifier Type	Audio	—
Number of Circuits	2	—
Slew Rate	5	V/µs
Gain Bandwidth Product	12	MHz
Current - Input Bias	100	nA
Voltage - Input Offset	500	µV
Current - Supply	6	mA
Current - Output / Channel	50	mA
Voltage - Supply Span (Min)	4	V
Voltage - Supply Span (Max)	32	V
Operating Temperature	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the RC4580IDRG4 are selected based on strict compatibility across the following critical parameters:

Primary Compatibility Criteria:

Number of circuits: 2 (dual-channel requirement)
Package type: 8-SOIC surface mount form factor
Operating temperature range: -40°C to 85°C minimum
Supply voltage span: 4V to 32V minimum
Output current per channel: 50 mA minimum
RoHS3 compliance and MSL rating

Secondary Electrical Parameters:

Slew rate: 5 V/µs or greater
Gain bandwidth product: 12 MHz or greater
Input bias current: 100 nA or lower
Input offset voltage: 500 µV or lower

Substitute parts are grouped into two categories based on amplifier type: audio amplifiers and general-purpose amplifiers. Audio-specific amplifiers (RC4580IDR, LM833M, LM833MX/NOPB, BA4580RF-E2) maintain the original audio amplifier classification. General-purpose and J-FET amplifiers (AS358AMTR-G1, BA15218F-E2, AD746JRZ, LF253DT, LF353DT, LM358ADR2G) provide functional equivalence through compatible electrical performance within the specified parameter ranges.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (nA)	Input Offset (µV)	Supply Current (mA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Status
RC4580IDRG4	Texas Instruments	Audio	5	12	100	500	6	50	4	32	-40 to 85	Obsolete
RC4580IDR	Texas Instruments	Audio	5	12	100	500	6	50	4	32	-40 to 85	Active
LM833M	National Semiconductor	Audio	7	15	500	300	5	40	10	30	-40 to 85	Active
LM833MX/NOPB	Texas Instruments	Audio	7	15	500	300	5	40	10	30	-40 to 85	Active
AD746JRZ	Analog Devices Inc.	J-FET	75	13	0.11	300	7	25	9	36	0 to 70	Active
AS358AMTR-G1	Diodes Incorporated	General Purpose	—	—	20	2000	0.7	40	3	36	-40 to 85	Active
BA15218F-E2	Rohm Semiconductor	General Purpose	3	10	50	500	5	50	4	32	-40 to 85	Active
BA4580RF-E2	Rohm Semiconductor	General Purpose	5	5	100	300	6	50	4	32	-40 to 105	Active
LF253DT	STMicroelectronics	J-FET	16	4	0.02	3000	1.4	40	6	36	-40 to 105	Active
LF353DT	STMicroelectronics	J-FET	16	4	0.02	3000	1.4	40	6	36	0 to 70	Active
LM358ADR2G	onsemi	General Purpose	—	1	45	2000	0.8	40	3	32	0 to 70	Active

Engineering Selection Recommendations

Direct Replacement (Highest Compatibility):

RC4580IDR is the primary direct replacement for RC4580IDRG4. Both parts are manufactured by Texas Instruments, share identical electrical specifications, and are packaged in 8-SOIC form factor. RC4580IDR is currently in active production status with high inventory availability (226,800 units). This part maintains full compatibility with existing PCB layouts and design requirements. RoHS3 compliance and MSL rating are identical.

Audio Amplifier Alternatives:

LM833M and LM833MX/NOPB are dual-channel audio amplifiers suitable for applications where enhanced slew rate (7 V/µs) and higher gain bandwidth product (15 MHz) provide performance advantages. Both maintain the -40°C to 85°C operating temperature range and 8-SOIC packaging. Supply voltage minimum is 10V, which may require design consideration in low-voltage applications. Both are RoHS3 compliant with MSL rating of 1.

BA4580RF-E2 is a general-purpose dual amplifier with identical slew rate (5 V/µs) and supply voltage specifications to the RC4580IDRG4. This part extends the operating temperature range to 105°C and maintains 8-SOIC packaging. Input offset voltage is lower (300 µV vs. 500 µV). Gain bandwidth product is reduced to 5 MHz, which may limit high-frequency applications.

J-FET Amplifier Alternatives:

AD746JRZ is a J-FET amplifier offering significantly higher slew rate (75 V/µs) and lower input bias current (110 pA). Operating temperature range is 0°C to 70°C, which is narrower than the original specification. Supply voltage range extends to 36V maximum. Output current per channel is 25 mA, below the 50 mA requirement.

LF253DT and LF353DT are J-FET amplifiers with high slew rate (16 V/µs) and extended supply voltage range (6V to 36V). Input bias current is extremely low (20 pA). Gain bandwidth product is reduced to 4 MHz. LF253DT supports -40°C to 105°C operating range; LF353DT is limited to 0°C to 70°C.

General-Purpose Amplifier Alternatives:

AS358AMTR-G1 and LM358ADR2G are general-purpose dual amplifiers with lower supply current requirements. AS358AMTR-G1 supports extended supply voltage range (3V to 36V) and maintains -40°C to 85°C temperature range. LM358ADR2G has narrower temperature range (0°C to 70°C) and lower gain bandwidth product (1 MHz).

BA15218F-E2 is a general-purpose amplifier with specifications closely matching the RC4580IDRG4, including identical supply voltage range (4V to 32V), output current (50 mA), and operating temperature (-40°C to 85°C). Slew rate is reduced to 3 V/µs. Package width is 4.40mm versus 3.90mm for the original part.

Compliance and Certification:

All substitute parts listed are RoHS3 compliant and REACH unaffected. Moisture sensitivity levels are MSL 1 (unlimited) for all recommended substitutes except AS358AMTR-G1 (MSL 3, 168 hours). All parts carry ECCN EAR99 classification and HTSUS code 8542.33.0001, matching the original part's regulatory status.

Frequently Asked Questions (FAQ)

Q: Can RC4580IDR be used as a direct drop-in replacement for RC4580IDRG4?

A: Yes. RC4580IDR is electrically and mechanically identical to RC4580IDRG4. Both are manufactured by Texas Instruments with the same 8-SOIC package, identical electrical specifications, and equivalent compliance certifications. The primary difference is product status: RC4580IDRG4 is obsolete while RC4580IDR is in active production.

Q: What is the difference between audio amplifiers and general-purpose amplifiers in this list?

A: Audio amplifiers (RC4580IDR, LM833M, LM833MX/NOPB, BA4580RF-E2) are specifically designed for audio signal processing with optimized noise characteristics and frequency response. General-purpose amplifiers (AS358AMTR-G1, LM358ADR2G) have broader application ranges but may have different noise and frequency response profiles. J-FET amplifiers (AD746JRZ, LF253DT, LF353DT) use junction field-effect transistor input stages for extremely low input bias current.

Q: Are there package compatibility issues with any substitute parts?

A: Most substitute parts use standard 8-SOIC (0.154", 3.90mm width) packaging compatible with RC4580IDRG4 PCB layouts. BA15218F-E2 and BA4580RF-E2 use 8-SOP packaging with 4.40mm width, which may require PCB footprint verification. LF253DT and LF353DT use standard 8-SOIC packaging. Verify PCB footprint compatibility before design implementation.

Q: Which substitute part has the lowest supply current requirement?

A: AS358AMTR-G1 has the lowest supply current at 700 µA (x2 channels). LM358ADR2G requires 800 µA (x2 channels). These parts are suitable for battery-powered or low-power applications. The original RC4580IDRG4 requires 6 mA total supply current.

Q: Can I use LF253DT or LF353DT if my application requires very low input bias current?

A: Yes. LF253DT and LF353DT have input bias current of 20 pA, approximately 5,000 times lower than RC4580IDRG4 (100 nA). However, these parts have reduced gain bandwidth product (4 MHz vs. 12 MHz) and higher input offset voltage (3 mV vs. 500 µV). Verify that reduced bandwidth and higher offset voltage are acceptable for your application.

Q: What is the operating temperature limitation for AD746JRZ?

A: AD746JRZ operates from 0°C to 70°C, which is narrower than RC4580IDRG4 (-40°C to 85°C). This part is not suitable for applications requiring full -40°C to 85°C temperature range. Use AD746JRZ only in applications with 0°C to 70°C operating requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant. Moisture sensitivity levels are MSL 1 (unlimited) for all parts except AS358AMTR-G1 (MSL 3, 168 hours). All parts are REACH unaffected with ECCN EAR99 classification.

Q: Which substitute part has the highest slew rate?

A: AD746JRZ has the highest slew rate at 75 V/µs, followed by LF253DT and LF353DT at 16 V/µs. The original RC4580IDRG4 has 5 V/µs slew rate. Higher slew rate enables faster signal transitions and is beneficial for high-frequency applications.

Q: Can I use LM833M or LM833MX/NOPB if my circuit requires 4V minimum supply voltage?

A: No. LM833M and LM833MX/NOPB require minimum 10V supply voltage, compared to 4V for RC4580IDRG4. These parts are not suitable for low-voltage applications below 10V. Use RC4580IDR, BA4580RF-E2, or BA15218F-E2 for 4V minimum supply voltage requirement.

Q: What is the inventory status of substitute parts?

A: RC4580IDR has the highest inventory (226,800 units). BA4580RF-E2 has 193,538 units. LF253DT has 72,138 units. BA15218F-E2 has 35,698 units. LM833MX/NOPB has 50,200 units. All substitute parts have active production status with substantial inventory availability.

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