TL082CDRE4 Equivalent & Substitute Parts

Part Overview

The TL082CDRE4 is a J-FET input operational amplifier featuring dual circuits in an 8-SOIC surface mount package, manufactured by Texas Instruments. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. The TL082CDRE4 operates across a supply voltage range of 10V to 30V with a slew rate of 13V/µs and gain bandwidth product of 3 MHz, making it suitable for general-purpose analog signal processing applications.

Key Parameters

Parameter	Value
Amplifier Type	J-FET
Number of Circuits	2
Slew Rate	13 V/µs
Gain Bandwidth Product	3 MHz
Current - Input Bias	30 pA
Voltage - Input Offset	3 mV
Current - Supply	1.4 mA (x2 Channels)
Current - Output / Channel	10 mA
Voltage - Supply Span (Min)	10 V
Voltage - Supply Span (Max)	30 V
Operating Temperature	0°C to 70°C
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the TL082CDRE4 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Amplifier Type: J-FET input configuration
Number of Circuits: Dual (2 circuits minimum)
Package / Case: 8-SOIC form factor
Mounting Type: Surface Mount
Supply Voltage Range: Minimum 10V to Maximum 30V compatibility
Operating Temperature: 0°C to 70°C minimum coverage

Secondary Compatibility Parameters:

Slew Rate: 13 V/µs or greater
Gain Bandwidth Product: 3 MHz or greater
Current - Input Bias: 30 pA or lower
Voltage - Input Offset: 3 mV or lower
Current - Supply: 1.4 mA or lower per channel
Current - Output / Channel: 10 mA or greater

Substitute parts are grouped into two categories:

Category A - Direct Equivalents (Identical or Superior Specifications): Parts that maintain all primary criteria and meet or exceed secondary parameters within the specified operating envelope.

Category B - Functional Alternatives (Extended Capabilities): Parts that satisfy primary criteria but may exceed certain secondary parameters, offering enhanced performance characteristics suitable for the same application space.

Parameter Comparison

Parameter	TL082CDRE4	TL082CDR	TL082BCD	TL082CMX/NOPB	LF253DT	LM833DT	TL072CDT	TL082ACDT	TL082AIYDT	TL082BCDT	TL082BIYDT
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics
Amplifier Type	J-FET	J-FET	J-FET	J-FET	J-FET	Audio	J-FET	J-FET	J-FET	J-FET	J-FET
Number of Circuits	2	2	2	2	2	2	2	2	2	2	2
Slew Rate (V/µs)	13	13	13	13	16	7	16	16	16	16	16
Gain Bandwidth Product (MHz)	3	3	3	4	4	15	4	4	4	4	4
Current - Input Bias (pA)	30	30	30	50	20	300 nA	20	20	20	20	20
Voltage - Input Offset (mV)	3	3	2	5	3	0.3 mV	3	3	3	1	1
Current - Supply (mA)	1.4	1.4	1.4	3.6	1.4	4	1.4	1.4	1.4	1.4	1.4
Current - Output / Channel (mA)	10	10	10	17	40	37	40	40	40	40	40
Voltage - Supply Span Min (V)	10	10	10	36	6	5	6	6	6	6	6
Voltage - Supply Span Max (V)	30	30	30	36	36	30	36	36	36	36	36
Operating Temperature (°C)	0 to 70	0 to 70	0 to 70	0 to 70	-40 to 105	-40 to 105	0 to 70	0 to 70	-40 to 105	0 to 70	-40 to 105
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Product Status	Obsolete	Active	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Tier 1 - Recommended Direct Substitutes (Active Status, Identical Specifications):

The TL082CDR represents the primary recommended substitute for the obsolete TL082CDRE4. This part maintains identical electrical specifications across all critical parameters while offering active product status and significantly higher inventory availability (105,200 units). Both devices feature J-FET input architecture, dual circuits, 8-SOIC packaging, and operate within the 10V to 30V supply range. The TL082CDR is ROHS3 compliant and carries unlimited moisture sensitivity rating, ensuring compatibility with modern manufacturing processes.

Tier 2 - Enhanced Performance Substitutes (Active Status, Superior Specifications):

The TL082AIYDT and TL082BCDT offer enhanced performance characteristics while maintaining J-FET input configuration and dual-circuit architecture in 8-SOIC packaging. These parts provide improved slew rate (16 V/µs versus 13 V/µs), superior input offset voltage (1-3 mV), and extended output current capability (40 mA versus 10 mA). The TL082AIYDT supports extended operating temperature range (-40°C to 105°C) and carries AEC-Q100 automotive qualification. Both parts are active products with substantial inventory availability.

Tier 3 - Functional Alternatives (Active Status, Extended Operating Range):

The LF253DT from STMicroelectronics provides J-FET input dual-circuit architecture with enhanced performance specifications including 16 V/µs slew rate, 4 MHz gain bandwidth product, and 40 mA output current per channel. This device operates across an extended temperature range (-40°C to 105°C) and supports supply voltages from 6V to 36V, offering greater flexibility for applications requiring wider operating envelopes. The LF253DT is active with 72,138 units in inventory.

Tier 4 - Alternative Amplifier Type (Active Status, Different Architecture):

The LM833DT represents a functional alternative with audio amplifier architecture rather than J-FET input configuration. This part features dual circuits in 8-SOIC packaging with superior gain bandwidth product (15 MHz), higher output current (37 mA), and extended operating temperature range (-40°C to 105°C). The LM833DT is suitable for applications where audio-grade amplification characteristics are acceptable and where the different input bias current (300 nA) does not present compatibility constraints.

Obsolete Parts to Avoid:

The TL082BCD, while offering identical electrical specifications to the TL082CDRE4, carries obsolete product status. Although inventory is substantial (888,900 units), procurement of obsolete components introduces long-term supply chain risk and should be avoided in favor of active alternatives.

Frequently Asked Questions (FAQ)

Q1: Can the TL082CDR be used as a direct replacement for the TL082CDRE4?

A: Yes. The TL082CDR is a direct electrical and mechanical equivalent. Both devices feature identical J-FET input dual-circuit architecture, 8-SOIC packaging, and electrical specifications including 13 V/µs slew rate, 3 MHz gain bandwidth product, and 10V to 30V supply range. The primary advantage of the TL082CDR is active product status, ensuring long-term availability and supply chain continuity.

Q2: What is the difference between the TL082CDR and TL082AIYDT?

A: The TL082AIYDT offers enhanced performance specifications compared to the TL082CDR. The TL082AIYDT provides 16 V/µs slew rate (versus 13 V/µs), 4 MHz gain bandwidth product (versus 3 MHz), improved input offset voltage (3 mV), and 40 mA output current per channel (versus 10 mA). Additionally, the TL082AIYDT supports extended operating temperature range (-40°C to 105°C versus 0°C to 70°C) and carries AEC-Q100 automotive qualification. These enhancements make the TL082AIYDT suitable for applications requiring higher performance margins or automotive-grade reliability.

Q3: Is the LF253DT compatible with the TL082CDRE4 in all applications?

A: The LF253DT is mechanically and functionally compatible in most applications. Both devices feature J-FET input dual-circuit architecture in 8-SOIC packaging. However, the LF253DT operates across a wider supply voltage range (6V to 36V versus 10V to 30V) and provides enhanced performance with 16 V/µs slew rate and 40 mA output current. The LF253DT also supports extended operating temperature range (-40°C to 105°C). These differences make the LF253DT suitable as a substitute, with the caveat that the wider supply range and enhanced performance may require circuit re-evaluation in applications with tight design margins.

Q4: Why is the LM833DT listed as an alternative if it has different amplifier architecture?

A: The LM833DT is included as a functional alternative for applications where audio amplifier characteristics are acceptable. While the LM833DT uses audio amplifier architecture rather than J-FET input configuration, it maintains dual-circuit 8-SOIC packaging and offers superior gain bandwidth product (15 MHz) and output current (37 mA). The LM833DT is suitable for audio signal processing and general-purpose amplification where the higher input bias current (300 nA) does not present compatibility constraints. This part should only be selected when application requirements explicitly permit audio amplifier characteristics.

Q5: What packaging options are available for substitute parts?

A: All recommended substitute parts maintain the 8-SOIC (0.154", 3.90mm Width) surface mount package form factor, ensuring mechanical compatibility with existing PCB layouts. Packaging variations exist in tape format: the TL082CDR, TL082AIYDT, TL082BCDT, and LF253DT are available in Cut Tape (CT) & Digi-Reel® format, while the TL082CMX/NOPB and TL082BIYDT are supplied in Tape & Reel (TR) format. The TL082ACDT is available in Cut Tape (CT) format. These packaging variations do not affect electrical performance or mechanical fit; selection should be based on procurement and assembly process requirements.

Q6: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitute parts carry ROHS3 compliance certification, ensuring compatibility with modern manufacturing standards and environmental regulations. The TL082CDRE4 original part also maintains ROHS3 compliance, so no design modifications are required for regulatory compliance when implementing substitutes.

Q7: Which substitute part offers the best long-term availability?

A: The TL072CDT offers the highest inventory availability among active substitutes with 203,200 units in stock. However, the TL082CDR, as the direct equivalent with active status, represents the most appropriate choice for long-term supply continuity. The TL082CDR maintains identical specifications to the obsolete TL082CDRE4 while offering 105,200 units in inventory and confirmed active product status.

Q8: Can the TL082CMX/NOPB be used as a substitute despite higher supply current?

A: The TL082CMX/NOPB can function as a substitute in applications where the increased supply current (3.6 mA versus 1.4 mA) and higher input bias current (50 pA versus 30 pA) are acceptable. This part offers enhanced gain bandwidth product (4 MHz versus 3 MHz) and higher output current (17 mA versus 10 mA). However, the fixed 36V supply voltage range (versus 10V to 30V) limits flexibility. The TL082CMX/NOPB should only be selected when application power budgets accommodate the higher supply current and when the 36V supply specification aligns with circuit design requirements.

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