OPA137P Equivalent & Substitute Parts

Part Overview

The OPA137P is a J-FET input operational amplifier manufactured by Texas Instruments, housed in an 8-DIP through-hole package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The OPA137P operates across a wide supply voltage range (4.5V to 36V) and is suitable for applications requiring low input bias current and moderate bandwidth performance.

Substiute Parts

OPA137P

Texas InstrumentsIn Stock: 3960OPA137P Datasheet

Current PartRFQ

OPA137U

Burr BrownIn Stock: 3622OPA137U Datasheet

MFR RecommendedRFQ

TLC2654IP

Texas InstrumentsIn Stock: 2002TLC2654IP Datasheet

MFR RecommendedRFQ

TLE2021AIP

Texas InstrumentsIn Stock: 1440TLE2021AIP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OPA137P is determined by the following critical parameters:

Primary Substitution Criteria:

• Amplifier Type (J-FET vs. General Purpose)
• Number of Circuits (single circuit requirement)
• Package Type (8-DIP through-hole vs. surface mount alternatives)
• Supply Voltage Range compatibility (minimum 4.5V, maximum 36V)
• Operating Temperature Range (-40°C to 85°C)

Secondary Compatibility Parameters:

• Slew Rate (3.5V/µs baseline)
• Gain Bandwidth Product (1 MHz baseline)
• Input Bias Current (5 pA baseline)
• Output Current capability (60 mA baseline)

The OPA137P has two primary substitute categories:

Category 1: Direct Package Equivalent (Surface Mount Alternative) OPA137U maintains identical electrical specifications but changes the mounting type from through-hole to surface mount (8-SOIC package). This substitute is suitable when PCB redesign to surface mount technology is acceptable.

Category 2: Functional Equivalents (Through-Hole Package, Different Amplifier Type) TLC2654IP and TLE2021AIP are general-purpose amplifiers in 8-DIP through-hole packages. These devices operate within the same temperature range and supply voltage compatibility window but differ in amplifier type classification and specific electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

OPA137U Selection Criteria: OPA137U is the preferred substitute when design flexibility permits surface mount technology adoption. This part maintains identical J-FET amplifier type and electrical specifications while offering active product status. The 8-SOIC package requires PCB redesign but provides equivalent electrical performance. OPA137U is ROHS3 compliant status equivalent to the main part.

TLC2654IP Selection Criteria: TLC2654IP is suitable for through-hole designs requiring continued DIP packaging. This general-purpose amplifier operates within compatible supply voltage ranges (4.6V to 16V) and temperature specifications. However, TLC2654IP exhibits higher input bias current (50 pA vs. 5 pA) and different slew rate characteristics (3.7V/µs vs. 3.5V/µs). Product status is Last Time Buy, indicating limited future availability. ROHS3 compliance is maintained.

TLE2021AIP Selection Criteria: TLE2021AIP provides through-hole 8-DIP packaging with extended maximum supply voltage (40V vs. 36V). This general-purpose amplifier has significantly higher input bias current (25 nA vs. 5 pA) and lower slew rate (0.65V/µs vs. 3.5V/µs). Product status is Last Time Buy. ROHS3 compliance is maintained. This substitute is applicable only when input bias current and slew rate differences are acceptable for the application.

Compliance and Certification: All substitute parts maintain ROHS3 compliance and REACH unaffected status. ECCN and HTSUS classifications remain consistent across all options.

Frequently Asked Questions (FAQ)

Q: Can OPA137U directly replace OPA137P in existing through-hole PCB designs?

A: No. OPA137U uses 8-SOIC surface mount packaging, while OPA137P uses 8-DIP through-hole packaging. PCB redesign is required. However, electrical specifications are identical, making OPA137U suitable for new surface mount designs.

Q: What are the key differences between OPA137P and TLC2654IP?

A: Both use 8-DIP through-hole packaging and operate across compatible temperature ranges. Primary differences are: OPA137P is J-FET type with 5 pA input bias current; TLC2654IP is general-purpose type with 50 pA input bias current. TLC2654IP has higher slew rate (3.7V/µs vs. 3.5V/µs) and gain bandwidth product (1.9 MHz vs. 1 MHz). TLC2654IP maximum supply voltage is limited to 16V versus OPA137P's 36V.

Q: Is TLE2021AIP compatible with high-voltage applications requiring 36V supply?

A: TLE2021AIP supports maximum supply voltage of 40V, exceeding OPA137P's 36V specification. However, TLE2021AIP has significantly higher input bias current (25 nA vs. 5 pA) and lower slew rate (0.65V/µs vs. 3.5V/µs), which may affect circuit performance in applications sensitive to these parameters.

Q: Why is OPA137P classified as obsolete?

A: OPA137P is listed as obsolete by the manufacturer. OPA137U (active status) is the manufacturer-recommended replacement, offering identical electrical performance in surface mount packaging.

Q: What is the inventory status of substitute parts?

A: OPA137U has 3600 units in stock. TLC2654IP has 1910 units. TLE2021AIP has 1382 units. All are available as new original stock.

Q: Are all substitute parts ROHS3 compliant?

A: OPA137P, TLC2654IP, and TLE2021AIP are ROHS3 compliant. OPA137U compliance status is not specified in available documentation.

Q: Which substitute is recommended for new designs?

A: OPA137U is recommended for new designs due to active product status and identical electrical specifications. For through-hole designs, TLC2654IP is preferred over TLE2021AIP due to closer electrical parameter alignment with OPA137P.