TL082BCDRE4 Equivalent & Substitute Parts

Part Overview

The TL082BCDRE4 is a J-FET input operational amplifier manufactured by Texas Instruments, configured as a dual-channel (2 circuit) device in an 8-SOIC surface mount package. This part is classified as discontinued at DiGi Electronics, with 870 units currently in stock as new original inventory.

The TL082BCDRE4 is designed for applications requiring low input bias current and low input offset voltage characteristics typical of J-FET amplifier architectures. Due to its discontinued status, equivalent substitute parts with matching or superior electrical and mechanical specifications are necessary for design continuity and procurement flexibility.

Key Parameters

Parameter	Value	Unit
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	2	mV
Current - Supply (x2 Channels)	1.4	mA
Current - Output / Channel	10	mA
Voltage - Supply Span (Min)	10	V
Voltage - Supply Span (Max)	30	V
Operating Temperature	0 to 70	°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

Substitution of the TL082BCDRE4 is determined by the following critical parameters:

Primary Substitution Criteria:

Amplifier Type: J-FET (low input bias current architecture)
Number of Circuits: 2 (dual-channel configuration)
Package / Case: 8-SOIC form factor
Mounting Type: Surface Mount
Operating Temperature Range: Minimum 0°C to 70°C
Voltage Supply Span: Minimum 10V to 30V range
RoHS Compliance: ROHS3 Compliant

Secondary Compatibility Parameters:

Slew Rate: 13 V/µs or greater
Gain Bandwidth Product: 3 MHz or greater
Input Bias Current: 30 pA or lower
Input Offset Voltage: 2 mV or lower
Supply Current: 1.4 mA (x2 Channels) or lower
Output Current per Channel: 10 mA or greater

Substitute parts are grouped into two categories:

Category A - Direct J-FET Substitutes (Identical Amplifier Type): Parts maintaining J-FET input architecture with equivalent or superior electrical performance. These include TL082BCDR, TL082CMX/NOPB, TL072CDT, TL082ACDT, and TL082AIYDT.

Category B - Functional Alternatives (Different Amplifier Type): Parts with different amplifier architectures (General Purpose or Audio) that meet the 8-SOIC package requirement and dual-channel configuration. These include LM358ADR2G, LM833DT, SSM2135SZ, SSM2135SZ-REEL, and SSM2135SZ-REEL7. These alternatives are suitable only when J-FET input characteristics are not functionally required.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (mV)	Supply Current (mA)	Output Current (mA)	Supply Span Min (V)	Supply Span Max (V)	Temp Range (°C)	Product Status
TL082BCDRE4	Texas Instruments	J-FET	13	3	30	2	1.4	10	10	30	0 to 70	Discontinued
TL082BCDR	Texas Instruments	J-FET	13	3	30	2	1.4	10	10	30	0 to 70	Active
TL082CMX/NOPB	Texas Instruments	J-FET	13	4	50	5	3.6	17	36	36	0 to 70	Active
TL072CDT	STMicroelectronics	J-FET	16	4	20	3	1.4	40	6	36	0 to 70	Active
TL082ACDT	STMicroelectronics	J-FET	16	4	20	3	1.4	40	6	36	0 to 70	Active
TL082AIYDT	STMicroelectronics	J-FET	16	4	20	3	1.4	40	6	36	-40 to 105	Active
LM358ADR2G	onsemi	General Purpose	—	1	45000	2	0.8	40	3	32	0 to 70	Active
LM833DT	STMicroelectronics	Audio	7	15	300000	0.3	4	37	5	30	-40 to 105	Active
SSM2135SZ	Analog Devices Inc.	Audio	0.9	3.5	300000	0.2	3.7	30	4	36	-40 to 85	Active
SSM2135SZ-REEL	Analog Devices Inc.	Audio	0.9	3.5	300000	0.2	3.7	30	4	36	-40 to 85	Active
SSM2135SZ-REEL7	Analog Devices Inc.	Audio	0.9	3.5	300000	0.2	3.7	30	4	36	-40 to 85	Active

Engineering Selection Recommendations

Primary Recommendation - Direct Replacement:

The TL082BCDR (Texas Instruments, Active status) is the direct equivalent substitute for the TL082BCDRE4. Both parts share identical electrical specifications across all critical parameters: 13 V/µs slew rate, 3 MHz gain bandwidth product, 30 pA input bias current, and 2 mV input offset voltage. The TL082BCDR differs only in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and maintains active product status with 6435 units in stock. This part is suitable for direct pin-for-pin replacement without circuit redesign.

Secondary J-FET Alternatives:

The TL082AIYDT (STMicroelectronics, Active status) offers enhanced performance with superior slew rate (16 V/µs versus 13 V/µs), lower input bias current (20 pA versus 30 pA), and extended operating temperature range (-40°C to 105°C versus 0°C to 70°C). This part is AEC-Q100 qualified for automotive applications and carries 100300 units in stock. The TL082AIYDT is suitable when extended temperature performance or automotive qualification is required.

The TL072CDT (STMicroelectronics, Active status) provides similar performance enhancements to the TL082AIYDT with 16 V/µs slew rate and 20 pA input bias current. This part is also AEC-Q100 qualified and maintains 203200 units in stock, offering the highest inventory availability among J-FET alternatives.

Functional Alternatives (Non-J-FET):

The LM358ADR2G (onsemi, Active status) is a general-purpose dual operational amplifier in 8-SOIC package suitable only for applications where J-FET input characteristics are not required. This part offers lower supply current (0.8 mA versus 1.4 mA) and wider supply voltage range (3V to 32V) but exhibits significantly higher input bias current (45 nA versus 30 pA).

The SSM2135SZ-REEL and SSM2135SZ-REEL7 (Analog Devices Inc., Active status) are audio-grade dual amplifiers with superior input offset voltage (0.2 mV versus 2 mV) and extended temperature range (-40°C to 85°C). These parts are suitable for audio applications but exhibit lower slew rate (0.9 V/µs versus 13 V/µs) and significantly higher input bias current (300 nA versus 30 pA).

All recommended substitutes maintain ROHS3 compliance, MSL Level 1 (Unlimited), and 8-SOIC surface mount package compatibility.

Frequently Asked Questions (FAQ)

Q1: Can the TL082BCDR directly replace the TL082BCDRE4 without circuit modification?

A: Yes. The TL082BCDR is electrically identical to the TL082BCDRE4 across all specified parameters. The only difference is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel). Both parts are pin-compatible in 8-SOIC configuration and require no circuit redesign.

Q2: What is the key difference between J-FET substitutes (TL082AIYDT, TL072CDT) and the original TL082BCDRE4?

A: J-FET substitutes maintain the same amplifier architecture but offer enhanced electrical performance: higher slew rate (16 V/µs versus 13 V/µs), lower input bias current (20 pA versus 30 pA), and extended operating temperature range. These parts are suitable for applications requiring improved performance margins or automotive qualification (AEC-Q100).

Q3: When should I use LM358ADR2G or LM833DT instead of J-FET alternatives?

A: These parts are suitable only when J-FET input characteristics are not functionally required. The LM358ADR2G offers lower power consumption and wider supply voltage range. The LM833DT provides higher gain bandwidth product (15 MHz) and extended temperature range (-40°C to 105°C) for audio applications. However, both exhibit significantly higher input bias current (45 nA to 300 nA versus 30 pA), making them unsuitable for high-impedance signal sources.

Q4: Are all substitute parts RoHS3 compliant and MSL Level 1?

A: Yes. All recommended substitute parts listed in this document maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original TL082BCDRE4 specifications.

Q5: What is the difference between SSM2135SZ, SSM2135SZ-REEL, and SSM2135SZ-REEL7?

A: These three parts are electrically identical audio amplifiers from Analog Devices Inc. The differences are packaging formats only: SSM2135SZ is supplied in Tube, SSM2135SZ-REEL in Tape & Reel (TR), and SSM2135SZ-REEL7 in Cut Tape (CT) & Digi-Reel®. All three maintain identical electrical specifications and active product status.

Q6: Which substitute offers the highest inventory availability?

A: The TL072CDT (STMicroelectronics) offers the highest inventory availability with 203200 units in stock. This J-FET alternative provides enhanced performance (16 V/µs slew rate, 20 pA input bias current) and AEC-Q100 automotive qualification.

Q7: Can I use TL082CMX/NOPB as a substitute?

A: The TL082CMX/NOPB is a J-FET alternative but exhibits degraded electrical performance compared to the TL082BCDRE4: higher input bias current (50 pA versus 30 pA), higher input offset voltage (5 mV versus 2 mV), and higher supply current (3.6 mA versus 1.4 mA). This part is suitable only when these performance differences are acceptable for the application.

Q8: What is the operating temperature range difference between TL082AIYDT and other J-FET substitutes?

A: The TL082AIYDT operates across -40°C to 105°C, providing extended temperature coverage compared to the original TL082BCDRE4 (0°C to 70°C) and most other substitutes. This extended range is beneficial for industrial and automotive applications requiring wider temperature performance.

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