TLC2654AIP Equivalent & Substitute Parts

Part Overview

The TLC2654AIP is a general-purpose operational amplifier manufactured by Texas Instruments, housed in an 8-DIP through-hole package. This device is classified as a Last Time Buy product, indicating that it is no longer in active production. The TLC2654AIP belongs to the LinCMOS™ series and is designed for applications requiring low-power, general-purpose amplification with moderate bandwidth and slew rate characteristics.

Due to its Last Time Buy status, identifying equivalent and substitute parts is essential for design continuity and long-term product support. Substitute parts must maintain compatibility across key electrical parameters including supply voltage range, input bias current, output current capability, and operating temperature range, while accommodating different package types and performance enhancements where applicable.

Substiute Parts

TLC2654AIP

Texas InstrumentsIn Stock: 1759TLC2654AIP Datasheet

Current PartRFQ

OPA182IDR

Texas InstrumentsIn Stock: 3129OPA182IDR Datasheet

MFR RecommendedRFQ

LTC1052CN8#PBF

Analog Devices Inc.In Stock: 1532LTC1052CN8#PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLC2654AIP is determined by the following critical parameters:

Electrical Compatibility Criteria:

• Supply voltage range must encompass or exceed the original range (4.6 V to 16 V minimum)
• Input bias current must not exceed 50 pA to maintain circuit performance
• Output current capability must be at least 50 mA per channel
• Operating temperature range must cover -40°C to 85°C minimum

Functional Compatibility:

• Single operational amplifier circuit (1 circuit requirement)
• General-purpose or zero-drift amplifier types are acceptable
• Slew rate and gain-bandwidth product may exceed original specifications without causing incompatibility

Package and Mounting Considerations:

• Through-hole 8-DIP packages are preferred for direct pin-compatible replacement
• Surface-mount alternatives (8-SOIC) require PCB redesign and are classified as functional substitutes rather than direct replacements

Compliance Requirements:

• RoHS3 compliance is mandatory for new designs
• REACH compliance status must be verified for regulatory adherence

Two substitute parts meet these criteria: OPA182IDR (surface-mount, enhanced performance) and LTC1052CN8#PBF (through-hole, pin-compatible).

Parameter Comparison

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement (Recommended for Through-Hole PCBs):

The LTC1052CN8#PBF is the optimal substitute for applications requiring a direct replacement in existing through-hole PCB layouts. This device maintains identical 8-DIP packaging and mounting type, eliminating the need for PCB redesign. Both the TLC2654AIP and LTC1052CN8#PBF are ROHS3 compliant and operate within the -40°C to 85°C temperature range. The LTC1052CN8#PBF offers superior input offset voltage (0.5 µV versus 4 µV) and significantly lower input bias current (1 pA versus 50 pA), providing enhanced precision in low-signal applications. Supply voltage compatibility is maintained across the 4.75 V to 16 V range. The LTC1052CN8#PBF is classified as Active product status, ensuring long-term availability and continued manufacturing support.

For Enhanced Performance with PCB Redesign (Surface-Mount Applications):

The OPA182IDR serves as a functional substitute for new designs or applications where surface-mount technology is preferred. This device provides superior performance metrics including higher slew rate (10 V/µs), extended gain-bandwidth product (5 MHz), and expanded supply voltage range (4.5 V to 36 V). The OPA182IDR features rail-to-rail output capability and operates across an extended temperature range (-40°C to 125°C). However, implementation requires PCB redesign due to the 8-SOIC surface-mount package format. The OPA182IDR is Active product status with current manufacturing support.

Compliance Verification:

Both substitute parts maintain ECCN EAR99 and HTSUS 8542.33.0001 classifications consistent with the original TLC2654AIP. REACH compliance status must be verified during procurement for regulatory adherence in specific geographic markets.

Frequently Asked Questions (FAQ)

Q1: Can the LTC1052CN8#PBF be used as a direct replacement for the TLC2654AIP without PCB modifications?

A: Yes. The LTC1052CN8#PBF is pin-compatible with the TLC2654AIP, both utilizing 8-DIP through-hole packaging with identical pin spacing (0.300", 7.62mm). No PCB layout changes are required for this substitution. Electrical parameters remain within acceptable operating ranges for the original circuit design.

Q2: What are the key differences between the OPA182IDR and LTC1052CN8#PBF substitutes?

A: The primary differences are package type and performance characteristics. The OPA182IDR uses 8-SOIC surface-mount packaging and requires PCB redesign, while the LTC1052CN8#PBF maintains the original 8-DIP through-hole format. The OPA182IDR offers higher slew rate (10 V/µs versus 4 V/µs) and extended supply voltage range (up to 36 V versus 16 V). The LTC1052CN8#PBF provides lower input bias current (1 pA versus 50 pA in the OPA182IDR) and maintains identical operating temperature range to the original part.

Q3: Is the OPA182IDR suitable for applications requiring the original -40°C to 85°C operating temperature range?

A: Yes. The OPA182IDR operates across -40°C to 125°C, which encompasses the original -40°C to 85°C specification. The extended upper temperature limit provides additional design margin for thermal management.

Q4: What is the significance of the "Last Time Buy" status for the TLC2654AIP?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of the TLC2654AIP and will no longer manufacture this device after existing inventory is depleted. Designers must transition to substitute parts for new designs or long-term product support. Both recommended substitutes (OPA182IDR and LTC1052CN8#PBF) are classified as Active products with ongoing manufacturing support.

Q5: Are both substitute parts RoHS3 compliant?

A: The LTC1052CN8#PBF is explicitly ROHS3 compliant. The OPA182IDR lists RoHS status as "Not applicable," which requires verification with the manufacturer or authorized distributor before use in applications with mandatory RoHS3 compliance requirements.

Q6: Can the TLC2654AIP be replaced with the OPA182IDR in existing through-hole PCB designs?

A: No. The OPA182IDR uses 8-SOIC surface-mount packaging, which is incompatible with through-hole PCB layouts designed for the 8-DIP TLC2654AIP. PCB redesign is mandatory for this substitution. For through-hole applications, the LTC1052CN8#PBF is the appropriate choice.

Q7: What supply voltage range is common to all three devices?

A: The common supply voltage range across the TLC2654AIP, OPA182IDR, and LTC1052CN8#PBF is 4.75 V to 16 V. The OPA182IDR extends the maximum supply voltage to 36 V, but the 4.75 V to 16 V range ensures compatibility with all three devices in existing circuit designs.

Q8: How do input offset voltage specifications affect circuit performance?

A: Input offset voltage determines the DC error at the amplifier output when no signal is applied. The TLC2654AIP specifies 4 µV, while both substitutes offer superior performance: OPA182IDR at 0.45 µV and LTC1052CN8#PBF at 0.5 µV. Lower offset voltage reduces DC error in precision applications such as instrumentation, data acquisition, and sensor signal conditioning. Substitution with lower-offset devices improves overall circuit accuracy without requiring design modifications.