RC4580IPW Equivalent & Substitute Parts Reference

Part Overview

The RC4580IPW is a dual-channel audio amplifier integrated circuit manufactured by Texas Instruments in 8-TSSOP surface mount packaging. This device is classified as a Last Time Buy product, indicating discontinued production with limited inventory availability. The RC4580IPW operates across a wide supply voltage range (4V to 32V) and is designed for audio signal amplification applications requiring low input offset voltage and moderate slew rate performance. Equivalent and substitute parts are necessary due to inventory constraints and product lifecycle status.

Key Parameters

Parameter	Value	Unit
Amplifier Type	Audio	—
Number of Circuits	2	Channels
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-TSSOP (0.173", 4.40mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the RC4580IPW is determined by the following criteria:

Primary Substitution Criteria:

Identical package type: 8-TSSOP surface mount
Dual-channel amplifier configuration (2 circuits)
Compatible supply voltage range overlap
Output current capability ≥ 40 mA per channel
RoHS3 compliance and MSL Level 1 rating

Substitution Logic:

The RC4580IPWR is a direct functional equivalent manufactured by Texas Instruments, differing only in packaging format (Cut Tape & Digi-Reel versus Tube). All electrical parameters are identical, and product status is Active with higher inventory availability.

The TL082CPT and TL082IPT are J-FET amplifier alternatives manufactured by STMicroelectronics. These parts share the 8-TSSOP package footprint and dual-channel configuration. However, they represent a different amplifier topology (J-FET versus audio amplifier architecture) with distinct electrical characteristics. Substitution is permissible only when application requirements accommodate the parameter differences outlined in the Parameter Comparison table.

Parameter Comparison

Parameter	RC4580IPW	RC4580IPWR	TL082CPT	TL082IPT	Unit
Manufacturer	Texas Instruments	Texas Instruments	STMicroelectronics	STMicroelectronics	—
Amplifier Type	Audio	Audio	J-FET	J-FET	—
Number of Circuits	2	2	2	2	Channels
Slew Rate	5	5	16	16	V/µs
Gain Bandwidth Product	12	12	4	4	MHz
Current - Input Bias	100	100	20	20	pA
Voltage - Input Offset	500	500	3000	3000	µV
Current - Supply	6	6	1.4	1.4	mA
Current - Output / Channel	50	50	40	40	mA
Voltage - Supply Span (Min)	4	4	6	6	V
Voltage - Supply Span (Max)	32	32	36	36	V
Operating Temperature	-40 to 85	-40 to 85	0 to 70	-40 to 105	°C
Package / Case	8-TSSOP	8-TSSOP	8-TSSOP	8-TSSOP	—
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	—
Product Status	Last Time Buy	Active	Active	Active	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—
Moisture Sensitivity Level	1	1	1	1	—

Engineering Selection Recommendations

RC4580IPWR (Primary Substitute): RC4580IPWR is the recommended substitute for RC4580IPW applications. Both parts are manufactured by Texas Instruments with identical electrical specifications and operating characteristics. The RC4580IPWR maintains Active product status with significantly higher inventory (35,200 units) compared to the Last Time Buy RC4580IPW (2,100 units). The only difference is packaging format: RC4580IPWR is supplied in Cut Tape & Digi-Reel format versus Tube packaging for RC4580IPW. Both are ROHS3 compliant with MSL Level 1 rating. Selection of RC4580IPWR eliminates supply chain risk while maintaining full functional equivalence.

TL082CPT and TL082IPT (Conditional Substitutes): The TL082CPT and TL082IPT are substitutes only for applications where J-FET amplifier characteristics are acceptable. These parts differ significantly from the RC4580IPW in amplifier topology and electrical performance. Key differences include:

Higher slew rate (16 V/µs versus 5 V/µs) suitable for faster signal transitions
Lower gain bandwidth product (4 MHz versus 12 MHz) limiting high-frequency performance
Substantially lower input bias current (20 pA versus 100 nA) beneficial for high-impedance input circuits
Higher input offset voltage (3 mV versus 500 µV) requiring offset compensation in precision applications
Lower supply current (1.4 mA versus 6 mA) reducing power consumption
Minimum supply voltage requirement of 6V versus 4V for RC4580IPW

TL082CPT is qualified to AEC-Q100 automotive standards with operating temperature range 0°C to 70°C. TL082IPT extends the operating temperature range to -40°C to 105°C, also with AEC-Q100 qualification. Both maintain ROHS3 compliance and MSL Level 1 rating.

Selection of TL082CPT or TL082IPT requires circuit redesign validation to confirm compatibility with the altered electrical characteristics.

Frequently Asked Questions (FAQ)

Q: Can RC4580IPWR be used as a direct replacement for RC4580IPW?

A: Yes. RC4580IPWR is a direct functional equivalent with identical electrical specifications, operating temperature range, and supply voltage range. The only difference is packaging format (Cut Tape & Digi-Reel versus Tube). Both parts are surface mount 8-TSSOP packages with identical pinout and footprint. No circuit modifications are required.

Q: What are the key differences between RC4580IPW and TL082CPT/TL082IPT?

A: The RC4580IPW is an audio amplifier topology, while TL082CPT and TL082IPT are J-FET amplifiers. Significant parameter differences include: slew rate (5 V/µs versus 16 V/µs), gain bandwidth product (12 MHz versus 4 MHz), input bias current (100 nA versus 20 pA), input offset voltage (500 µV versus 3 mV), and supply current (6 mA versus 1.4 mA). The TL082 series also requires minimum 6V supply versus 4V for RC4580IPW. These differences necessitate circuit analysis before substitution.

Q: Are all substitute parts available in the same 8-TSSOP package?

A: Yes. RC4580IPW, RC4580IPWR, TL082CPT, and TL082IPT are all manufactured in 8-TSSOP surface mount packages with 0.173" width and 4.40mm body width. Pin assignments are identical across all four parts, ensuring footprint compatibility on PCB layouts.

Q: What is the difference between RC4580IPW (Tube) and RC4580IPWR (Cut Tape & Digi-Reel)?

A: Both parts are electrically identical. The difference is in packaging and delivery format. RC4580IPW is supplied in Tube packaging (typically 25 units per tube), while RC4580IPWR is supplied in Cut Tape format on Digi-Reel spools for automated assembly equipment. Selection depends on manufacturing process requirements and inventory management practices.

Q: Are TL082CPT and TL082IPT interchangeable?

A: TL082CPT and TL082IPT share identical electrical specifications and 8-TSSOP packaging. The primary difference is operating temperature range: TL082CPT operates 0°C to 70°C, while TL082IPT operates -40°C to 105°C. Both are AEC-Q100 qualified. Selection depends on application temperature requirements. TL082IPT provides extended temperature coverage suitable for wider environmental conditions.

Q: Do all substitute parts meet RoHS and environmental compliance requirements?

A: Yes. RC4580IPW, RC4580IPWR, TL082CPT, and TL082IPT are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). All parts are REACH Unaffected and classified under ECCN EAR99 with HTSUS code 8542.33.0001.

Q: Why is RC4580IPW marked as Last Time Buy?

A: Last Time Buy status indicates Texas Instruments has discontinued production of RC4580IPW. Existing inventory (2,100 units) represents the final available stock. RC4580IPWR remains in Active production status as the replacement part. Customers should transition to RC4580IPWR for new designs and long-term supply assurance.

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