TLE2061IDRG4 Equivalent & Substitute Parts

Part Overview

The TLE2061IDRG4 is a J-FET input operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device is classified as a linear amplifier with a single circuit configuration and is part of the Excalibur™ series. The TLE2061IDRG4 is currently discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing design support and production continuity. The part remains available in inventory (822 pcs), but long-term sourcing requires evaluation of active alternative components that maintain electrical and mechanical compatibility.

Substiute Parts

TLE2061IDRG4

Texas InstrumentsIn Stock: 871TLE2061IDRG4 Datasheet

Current PartRFQ

TLE2061IDR

Texas InstrumentsIn Stock: 12730TLE2061IDR Datasheet

MFR RecommendedRFQ

LM258ADT

STMicroelectronicsIn Stock: 60484LM258ADT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLE2061IDRG4 is determined by strict alignment of electrical performance parameters and mechanical compatibility. The critical substitution criteria are:

Primary Substitution Criteria:

• Amplifier Type: J-FET input configuration for low input bias current (4 pA specification)
• Package / Case: 8-SOIC form factor with 0.154" (3.90mm) width for PCB layout compatibility
• Slew Rate: 3.4 V/µs minimum for transient response matching
• Gain Bandwidth Product: 2 MHz minimum for frequency response compatibility
• Supply Voltage Range: 7 V to 36 V operating span
• Output Current: 80 mA per channel minimum
• Operating Temperature: -40°C to 85°C minimum range

Secondary Compatibility Factors:

• RoHS3 compliance for regulatory alignment
• MSL Level 1 for moisture sensitivity consistency
• Surface mount technology for manufacturing process compatibility

The TLE2061IDR (manufacturer-recommended substitute) maintains identical electrical specifications and packaging, differing only in tape & reel packaging format. The LM258ADT represents a functional alternative with different amplifier topology (general purpose vs. J-FET) and modified electrical characteristics, suitable only where J-FET input performance is not a design requirement.

Parameter Comparison

Engineering Selection Recommendations

TLE2061IDR (Primary Substitute):

The TLE2061IDR is the direct electrical equivalent of the TLE2061IDRG4, manufactured by Texas Instruments with identical specifications across all performance parameters. This substitute maintains J-FET input architecture, slew rate (3.4 V/µs), gain bandwidth product (2 MHz), and supply voltage range (7 V to 36 V). The only difference is packaging format: TLE2061IDR is supplied in tape & reel (TR) configuration versus the tube packaging of the main part. Both are ROHS3 compliant with MSL Level 1 rating. The TLE2061IDR is currently active in production with 12,700 pcs in stock, providing superior long-term availability compared to the discontinued TLE2061IDRG4. This part is the recommended substitute for direct replacement in existing designs.

LM258ADT (Functional Alternative):

The LM258ADT is an active product from STMicroelectronics with 60,400 pcs in stock. This device differs fundamentally in amplifier topology (general purpose vs. J-FET input) and electrical performance. The LM258ADT exhibits lower slew rate (0.6 V/µs vs. 3.4 V/µs), reduced gain bandwidth product (1.1 MHz vs. 2 MHz), higher input bias current (20 nA vs. 4 pA), and lower output current per channel (40 mA vs. 80 mA). The LM258ADT includes two circuits versus one in the TLE2061IDRG4. This substitute is suitable only for applications where J-FET input performance is not required and where the reduced slew rate and bandwidth are acceptable. The LM258ADT includes AEC-Q100 automotive qualification and supports extended operating temperature to 105°C. Both devices share 8-SOIC packaging, ROHS3 compliance, and MSL Level 1 rating.

Frequently Asked Questions (FAQ)

Q: Can the TLE2061IDR directly replace the TLE2061IDRG4 in production?

A: Yes. The TLE2061IDR is electrically identical to the TLE2061IDRG4 across all specified parameters. The difference is packaging format: TLE2061IDR uses tape & reel (TR) supply while TLE2061IDRG4 uses tube packaging. Both are surface mount 8-SOIC devices with identical pinout and electrical performance. Tape & reel format is standard for automated assembly processes.

Q: What are the key differences between the TLE2061IDR and LM258ADT?

A: The primary differences are amplifier topology and electrical performance. TLE2061IDR uses J-FET input architecture with 4 pA input bias current, 3.4 V/µs slew rate, and 2 MHz bandwidth. LM258ADT uses general purpose topology with 20 nA input bias current, 0.6 V/µs slew rate, and 1.1 MHz bandwidth. TLE2061IDR has one circuit; LM258ADT has two circuits. Both share 8-SOIC packaging and ROHS3 compliance.

Q: Is the LM258ADT suitable as a substitute if my design requires low input bias current?

A: No. The LM258ADT input bias current is 20 nanoamperes, which is 5,000 times higher than the TLE2061IDRG4 specification of 4 picoamperes. Applications requiring ultra-low input bias current must use the TLE2061IDR, which maintains the J-FET input specification.

Q: Are both substitute parts available in the same package as the original?

A: Yes. Both TLE2061IDR and LM258ADT are supplied in 8-SOIC surface mount packages with 0.154" (3.90mm) width, matching the TLE2061IDRG4 footprint. Pinout compatibility must be verified for the LM258ADT due to its dual-circuit configuration.

Q: What is the difference between tape & reel and tube packaging?

A: Tape & reel (TR) packaging supplies components on continuous carrier tape wound on reels, optimized for automated pick-and-place assembly. Tube packaging supplies components in plastic tubes, typically used for manual assembly or lower-volume production. Both formats contain identical components; packaging format selection depends on assembly process requirements.

Q: Do both substitutes meet RoHS and REACH compliance?

A: Yes. Both TLE2061IDR and LM258ADT are ROHS3 compliant and REACH unaffected, matching the compliance status of the TLE2061IDRG4.

Q: What is the MSL rating and why does it matter?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture bake-out requirements. All three parts (TLE2061IDRG4, TLE2061IDR, and LM258ADT) carry MSL Level 1, meaning they can be stored and handled without special moisture control procedures.

Q: Can I use the LM258ADT if I only need one amplifier circuit?

A: The LM258ADT contains two circuits, but you can use one circuit and leave the other unused. However, if your design specifically requires J-FET input performance (low input bias current and high input impedance), the LM258ADT is not suitable regardless of circuit count. Use TLE2061IDR for J-FET requirements.