TLC2654CP Equivalent & Substitute Parts

Part Overview

The TLC2654CP 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 TLC2654CP serves applications requiring low input bias current, low input offset voltage, and moderate bandwidth performance in general-purpose amplification circuits.

Identification of equivalent and substitute parts becomes necessary due to the Last Time Buy status of the TLC2654CP, which indicates limited future availability. Alternative components with compatible electrical and mechanical specifications enable design continuity and long-term supply chain reliability.

Substiute Parts

TLC2654CP

Texas InstrumentsIn Stock: 822TLC2654CP Datasheet

Current PartRFQ

OPA182IDR

Texas InstrumentsIn Stock: 3129OPA182IDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC2654CP is determined by electrical parameter compatibility and mechanical package compatibility. The primary substitute identified is the OPA182IDR, manufactured by Texas Instruments.

The OPA182IDR qualifies as a substitute based on the following alignment criteria:

Electrical Compatibility Parameters:

• Input bias current: 50 pA (identical to TLC2654CP)
• Single circuit configuration (1 circuit)
• Supply voltage range overlap: OPA182IDR operates from 4.5 V to 36 V, encompassing the TLC2654CP range of 4.6 V to 16 V
• Output current capability: 65 mA (exceeds TLC2654CP requirement of 50 mA)

Mechanical Compatibility:

• Both devices are 8-pin packages suitable for single-channel amplifier applications
• Pin configuration compatibility enables direct functional replacement in circuit designs

Functional Enhancement: The OPA182IDR provides superior performance characteristics including higher slew rate (10 V/µs versus 3.7 V/µs), increased gain bandwidth product (5 MHz versus 1.9 MHz), and significantly lower input offset voltage (0.45 µV versus 5 µV). These enhancements do not preclude substitution; they represent performance improvements within the general-purpose amplifier category.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TLC2654CP carries Last Time Buy status, indicating that future availability is limited and production will cease. The OPA182IDR is designated as Active status, ensuring continued availability and supply chain stability for new designs and long-term production requirements.

Compliance and Certification: Both the TLC2654CP and OPA182IDR are classified under HTSUS code 8542.33.0001 and carry ECCN designation EAR99. The TLC2654CP is RoHS3 Compliant. The OPA182IDR carries MSL rating of 2 (1 Year), indicating standard moisture sensitivity handling requirements for surface-mount devices.

Electrical Performance: The OPA182IDR provides measurable improvements in key performance metrics: slew rate is 2.7 times higher, gain bandwidth product is 2.6 times higher, and input offset voltage is reduced by a factor of 11. These enhancements support applications requiring faster signal processing and improved precision without introducing incompatibility with the TLC2654CP electrical interface requirements.

Package Transition Consideration: The primary distinction between these devices is the package format: TLC2654CP uses through-hole 8-DIP mounting, while OPA182IDR uses surface-mount 8-SOIC packaging. This difference requires PCB layout modification but does not affect electrical substitution feasibility. Pin-to-pin functional equivalence is maintained.

Frequently Asked Questions (FAQ)

Q: Can the OPA182IDR directly replace the TLC2654CP in existing PCB designs?

A: Electrical substitution is valid based on input bias current, supply voltage range overlap, and output current capability. However, package format differs: TLC2654CP is through-hole 8-DIP while OPA182IDR is surface-mount 8-SOIC. Direct socket replacement is not possible without PCB redesign. Functional circuit operation is compatible.

Q: What are the critical parameters that determine substitution compatibility?

A: Input bias current (50 pA for both), single circuit configuration, supply voltage range overlap (4.6 V to 16 V for TLC2654CP falls within 4.5 V to 36 V for OPA182IDR), and output current capability (OPA182IDR 65 mA exceeds TLC2654CP 50 mA requirement) establish substitution validity.

Q: Why does the OPA182IDR have superior performance specifications?

A: The OPA182IDR is classified as a Zero-Drift amplifier, a more advanced topology than the general-purpose classification of the TLC2654CP. This architectural difference accounts for higher slew rate, increased bandwidth, and significantly lower input offset voltage. These improvements are compatible with TLC2654CP application requirements.

Q: Is the OPA182IDR suitable for applications requiring the TLC2654CP operating temperature range of 0°C to 70°C?

A: Yes. The OPA182IDR operating temperature range of -40°C to 125°C encompasses and exceeds the TLC2654CP range of 0°C to 70°C. Extended temperature capability does not introduce incompatibility.

Q: What is the significance of Last Time Buy status for the TLC2654CP?

A: Last Time Buy designation indicates that production of the TLC2654CP will cease and future inventory availability is limited. Designs currently using this device should evaluate substitution with active-status alternatives such as the OPA182IDR to ensure long-term supply chain continuity.

Q: Are there pin configuration differences between the TLC2654CP and OPA182IDR?

A: Both devices are 8-pin single-channel operational amplifiers with functionally equivalent pin assignments for standard amplifier applications. Package format differs (DIP versus SOIC), but pin function compatibility is maintained.

Q: What supply voltage considerations apply when substituting the OPA182IDR for the TLC2654CP?

A: The TLC2654CP operates from 4.6 V to 16 V. The OPA182IDR operates from 4.5 V to 36 V. Existing power supply designs for the TLC2654CP operate within the OPA182IDR specification range. The extended upper voltage limit of the OPA182IDR does not require modification to existing supply circuits.