TLC2654IP Equivalent & Substitute Parts

Part Overview

The TLC2654IP is a general-purpose operational amplifier manufactured by Texas Instruments, housed in an 8-DIP through-hole package. This device is classified as a LinCMOS™ series amplifier with a single circuit configuration and is currently designated as Last Time Buy status. The TLC2654IP serves applications requiring low-power, general-purpose amplification with moderate bandwidth and slew rate characteristics.

Identification of substitute parts becomes necessary due to the Last Time Buy status of the TLC2654IP, which indicates discontinued production and limited remaining inventory. Alternative components with compatible electrical and mechanical specifications enable design continuity and long-term product support.

Substiute Parts

TLC2654IP

Texas InstrumentsIn Stock: 2002TLC2654IP Datasheet

Current PartRFQ

OPA182IDR

Texas InstrumentsIn Stock: 3129OPA182IDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC2654IP is evaluated based on the following critical parameters that define functional and mechanical compatibility:

Electrical Compatibility Criteria:

• Single circuit configuration (Number of Circuits = 1)
• Input bias current specification (50 pA maximum)
• Supply voltage range encompassing the TLC2654IP operating window (4.6 V to 16 V minimum)
• Output current capability meeting or exceeding 50 mA per channel
• Operating temperature range supporting -40°C to 85°C minimum

Mechanical Compatibility Criteria:

• Package type and pin count (8-pin configuration)
• Through-hole or surface-mount mounting compatibility with circuit board design

The OPA182IDR is identified as a manufacturer-recommended substitute. While this device operates as a zero-drift amplifier with enhanced performance characteristics (higher bandwidth, lower input offset voltage, extended supply range), it maintains electrical compatibility through equivalent input bias current, single-circuit configuration, and superior output current capability. The OPA182IDR operates across an extended temperature range (-40°C to 125°C) and supports supply voltages from 4.5 V to 36 V, encompassing the TLC2654IP operating envelope.

Package Consideration: The OPA182IDR is supplied in 8-SOIC surface-mount packaging, requiring circuit board redesign compared to the through-hole 8-DIP package of the TLC2654IP. This represents a mechanical substitution requiring layout modification.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TLC2654IP carries Last Time Buy status, indicating end-of-life production. The OPA182IDR maintains Active product status with ongoing manufacturer support and availability.

Compliance and Certification: The TLC2654IP is ROHS3 Compliant. The OPA182IDR RoHS status is listed as Not applicable. Both devices carry EAR99 ECCN classification and HTSUS code 8542.33.0001, indicating equivalent regulatory treatment for export purposes.

Electrical Performance: The OPA182IDR provides superior electrical characteristics within the TLC2654IP operating envelope. Input offset voltage is reduced from 5 µV to 0.45 µV, slew rate increases from 3.7 V/µs to 10 V/µs, and gain bandwidth product increases from 1.9 MHz to 5 MHz. Supply current consumption decreases from 1.5 mA to 0.85 mA, and output current capability increases from 50 mA to 65 mA per channel.

Packaging and Integration: Substitution of the OPA182IDR requires circuit board redesign due to transition from through-hole 8-DIP to surface-mount 8-SOIC packaging. This mechanical change necessitates layout modification but does not affect electrical functionality within the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the OPA182IDR directly replace the TLC2654IP without circuit board modification?

A: Electrical substitution is valid; however, mechanical substitution requires circuit board redesign. The TLC2654IP uses through-hole 8-DIP packaging while the OPA182IDR uses surface-mount 8-SOIC packaging. Pin-to-pin electrical compatibility exists, but physical mounting differs.

Q: What are the key electrical parameters that confirm substitution compatibility?

A: Substitution compatibility is confirmed through: (1) single-circuit configuration in both devices, (2) identical input bias current specification (50 pA), (3) OPA182IDR supply voltage range (4.5 V to 36 V) encompassing TLC2654IP range (4.6 V to 16 V), (4) OPA182IDR output current (65 mA) exceeding TLC2654IP requirement (50 mA), and (5) OPA182IDR operating temperature range (-40°C to 125°C) covering TLC2654IP range (-40°C to 85°C).

Q: Does the OPA182IDR provide performance improvements over the TLC2654IP?

A: The OPA182IDR demonstrates enhanced performance specifications: slew rate increases 2.7×, gain bandwidth product increases 2.6×, input offset voltage decreases 11×, and supply current decreases 43%. These improvements occur within equivalent electrical operating parameters.

Q: Are there compliance or regulatory differences between these devices?

A: Both devices carry identical ECCN (EAR99) and HTSUS (8542.33.0001) classifications. The TLC2654IP is ROHS3 Compliant; the OPA182IDR RoHS status is Not applicable. Both are manufactured by Texas Instruments.

Q: What is the inventory status of these devices?

A: The TLC2654IP has 1910 pieces in stock with Last Time Buy status. The OPA182IDR has 3100 pieces in stock with Active product status, indicating ongoing availability and production support.

Q: Does the OPA182IDR require different circuit design considerations?

A: The OPA182IDR is a zero-drift amplifier with superior input offset voltage performance (0.45 µV versus 5 µV). Applications sensitive to offset voltage drift benefit from this specification improvement. Pin configuration remains identical to the TLC2654IP, preserving circuit topology compatibility.