TL084ACNSR Equivalent & Substitute Parts

Part Overview

The TL084ACNSR is a J-FET input operational amplifier containing four independent circuits in a 14-SOIC surface mount package. This device is manufactured by Texas Instruments and is designated as Last Time Buy status, indicating discontinued production with limited inventory availability. The TL084ACNSR operates across a supply voltage range of 10V to 30V with an input bias current of 30 pA and a slew rate of 13V/µs. Due to its Last Time Buy status, equivalent substitute parts with active production status are necessary for ongoing design implementations and procurement planning.

Substiute Parts

TL084ACNSR

Texas InstrumentsIn Stock: 4238TL084ACNSR Datasheet

Current PartRFQ

TL084ACDR

Texas InstrumentsIn Stock: 2677TL084ACDR Datasheet

MFR RecommendedRFQ

TL084ACDT

STMicroelectronicsIn Stock: 888647TL084ACDT Datasheet

MFR RecommendedRFQ

TL084AIDT

STMicroelectronicsIn Stock: 5430TL084AIDT Datasheet

MFR RecommendedRFQ

TL084BCDT

STMicroelectronicsIn Stock: 2970TL084BCDT Datasheet

MFR RecommendedRFQ

TL084BIDT

STMicroelectronicsIn Stock: 7556TL084BIDT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TL084ACNSR is determined by the following critical parameters: J-FET amplifier topology, four independent circuits, 14-SOIC surface mount package, and supply voltage compatibility. The TL084 base product family shares these core characteristics across multiple manufacturers and temperature grades.

Substitute parts are grouped into two categories based on electrical performance and operational specifications:

Category 1: Direct Electrical Equivalents (Same Performance Tier) Parts maintaining the original 13V/µs slew rate and 3 MHz gain bandwidth product with identical input bias current (30 pA) and output current per channel (10 mA). These parts operate within the same supply voltage range (10V to 30V) and temperature specification (0°C to 70°C).

Category 2: Enhanced Performance Alternatives (Higher Performance Tier) Parts featuring improved electrical characteristics including 16V/µs slew rate, 4 MHz gain bandwidth product, reduced input bias current (20 pA), and increased output current per channel (40 mA). These parts support extended supply voltage range (6V to 36V) and are available in both standard and extended temperature grades with automotive qualification (AEC-Q100).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance)

The TL084ACDR is the primary direct substitute for the TL084ACNSR. Both parts maintain identical electrical specifications including 13V/µs slew rate, 3 MHz gain bandwidth product, 30 pA input bias current, and 10 mA output current per channel. The TL084ACDR is manufactured by Texas Instruments with Active product status, ensuring long-term availability. The primary difference is package geometry: TL084ACDR uses a narrower 14-SOIC package (0.154", 3.90mm width) compared to the TL084ACNSR (0.209", 5.30mm width). This substitution is suitable for applications where the original electrical performance specifications are required and package footprint differences can be accommodated in PCB layout.

For Enhanced Performance Applications

The TL084ACDT, TL084AIDT, TL084BCDT, and TL084BIDT represent enhanced performance alternatives manufactured by STMicroelectronics. These parts feature improved electrical characteristics: 16V/µs slew rate (versus 13V/µs), 4 MHz gain bandwidth product (versus 3 MHz), reduced input bias current of 20 pA (versus 30 pA), and increased output current per channel of 40 mA (versus 10 mA). All four parts carry AEC-Q100 automotive qualification and support extended supply voltage range (6V to 36V). Selection among these four parts depends on temperature grade requirements and input offset voltage specifications:

TL084ACDT and TL084BCDT operate within 0°C to 70°C temperature range with standard commercial grade. TL084AIDT and TL084BIDT extend the operating temperature range to -40°C to 105°C for industrial and extended temperature applications. TL084BCDT and TL084BIDT feature reduced input offset voltage of 1 mV (versus 3 mV in TL084ACDT and TL084AIDT), providing improved precision for applications requiring tighter offset specifications.

Compliance and Regulatory Considerations

All substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited), and REACH Unaffected status, matching the regulatory profile of the TL084ACNSR. The automotive-qualified variants (TL084ACDT, TL084AIDT, TL084BCDT, TL084BIDT) are suitable for automotive and industrial applications requiring AEC-Q100 certification.

Frequently Asked Questions (FAQ)

Q: Can the TL084ACDR be used as a direct replacement for the TL084ACNSR?

A: The TL084ACDR is electrically equivalent to the TL084ACNSR with identical slew rate (13V/µs), gain bandwidth product (3 MHz), input bias current (30 pA), and output current per channel (10 mA). The primary difference is package geometry: the TL084ACDR uses a narrower 14-SOIC package (0.154", 3.90mm width) versus the TL084ACNSR (0.209", 5.30mm width). Direct substitution is possible if PCB layout can accommodate the different package footprint.

Q: What are the key differences between the Texas Instruments TL084ACDR and the STMicroelectronics TL084ACDT?

A: Both parts share the same base product number (TL084) and four-circuit J-FET topology. The TL084ACDR maintains the original electrical performance (13V/µs slew rate, 3 MHz bandwidth, 30 pA input bias current, 10 mA output current). The TL084ACDT offers enhanced performance with 16V/µs slew rate, 4 MHz bandwidth, 20 pA input bias current, and 40 mA output current per channel. The TL084ACDT also supports extended supply voltage range (6V to 36V versus 10V to 30V) and carries AEC-Q100 automotive qualification.

Q: Which substitute part should be selected for extended temperature range applications?

A: The TL084AIDT and TL084BIDT are specified for -40°C to 105°C operating temperature range, compared to 0°C to 70°C for TL084ACDT and TL084BCDT. Selection between TL084AIDT and TL084BIDT depends on input offset voltage requirements: TL084AIDT specifies 3 mV offset voltage, while TL084BIDT specifies 1 mV for improved precision.

Q: Are all substitute parts compatible with the original supply voltage range of 10V to 30V?

A: Yes. All substitute parts support the original supply voltage range of 10V to 30V. The STMicroelectronics variants (TL084ACDT, TL084AIDT, TL084BCDT, TL084BIDT) additionally support extended minimum supply voltage down to 6V and maximum supply voltage up to 36V, providing greater flexibility for applications with varying supply requirements.

Q: What is the significance of the package width difference between TL084ACNSR and substitute parts?

A: The TL084ACNSR uses a 14-SOIC package with 0.209" (5.30mm) width, while all substitute parts use 14-SOIC packages with 0.154" (3.90mm) width. Both are standard 14-pin SOIC packages with identical pin pitch and electrical connectivity. The width difference affects PCB footprint dimensions and component placement. Substitution requires PCB layout verification to confirm the narrower package footprint is compatible with existing board design.

Q: Do the substitute parts maintain the same RoHS and moisture sensitivity compliance as the TL084ACNSR?

A: Yes. All substitute parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the regulatory and environmental specifications of the TL084ACNSR. The automotive-qualified variants additionally carry AEC-Q100 certification for enhanced reliability in automotive and industrial applications.

Q: What is the inventory status of substitute parts?

A: The TL084ACDR (Texas Instruments) has 2,600 units in stock with Active product status. The STMicroelectronics variants have the following inventory: TL084ACDT (888,600 units), TL084AIDT (5,400 units), TL084BCDT (2,936 units), and TL084BIDT (7,520 units). All substitute parts are in Active production status, ensuring long-term availability compared to the TL084ACNSR Last Time Buy status.