TLC2652AIP Equivalent & Substitute Parts

Part Overview

The TLC2652AIP is a zero-drift operational amplifier manufactured by Texas Instruments, designed for precision analog signal conditioning applications. This device features a single amplifier circuit with single-ended output configuration, housed in an 8-pin DIP package for through-hole mounting. The TLC2652AIP operates across a supply voltage range of 3.8 V to 16 V with an input offset voltage of 0.5 µV, making it suitable for low-drift, precision measurement systems.

The TLC2652AIP carries a Last Time Buy product status, indicating that Texas Instruments has discontinued this component. This status necessitates identification of functionally equivalent alternatives to support ongoing design requirements and production continuity for systems currently utilizing this amplifier.

Substiute Parts

TLC2652AIP

Texas InstrumentsIn Stock: 1978TLC2652AIP Datasheet

Current PartRFQ

OPA182IDR

Texas InstrumentsIn Stock: 3129OPA182IDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC2652AIP requires identification of alternative zero-drift operational amplifiers that maintain functional compatibility across critical electrical and mechanical parameters. The substitution logic is based on the following key criteria:

Amplifier Architecture: Both the main part and substitute must employ zero-drift topology to ensure equivalent input offset voltage performance and long-term stability characteristics.

Circuit Count and Output Configuration: The substitute must provide a single amplifier circuit with compatible output stage configuration to maintain signal integrity in existing circuit designs.

Electrical Performance Envelope: The substitute must operate within the supply voltage range requirements and deliver equivalent or superior performance in slew rate, gain bandwidth product, input offset voltage, and input bias current specifications.

Thermal and Environmental Compatibility: The substitute must support the operating temperature range and environmental compliance standards (RoHS, REACH) of the original component.

Packaging and Mounting: While the TLC2652AIP uses through-hole 8-DIP packaging, functionally equivalent alternatives may employ surface-mount packaging (8-SOIC) provided that the design accommodates the different mounting technology and board layout requirements.

The OPA182IDR qualifies as a direct functional substitute based on its zero-drift amplifier architecture, single-circuit configuration, superior electrical performance specifications, and equivalent environmental compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The OPA182IDR serves as the primary substitute for the TLC2652AIP based on functional equivalence in zero-drift amplifier architecture and single-circuit configuration. The OPA182IDR demonstrates superior electrical performance across multiple parameters: slew rate increases from 3.1 V/µs to 10 V/µs, gain bandwidth product increases from 1.9 MHz to 5 MHz, and input offset voltage improves from 0.5 µV to 0.45 µV. The OPA182IDR also extends the maximum supply voltage from 16 V to 36 V and the operating temperature range from 85°C to 125°C.

The primary design consideration for substitution involves packaging transition from through-hole 8-DIP to surface-mount 8-SOIC. This transition requires board layout modification and assembly process adjustment but does not affect electrical functionality or signal integrity.

Both components maintain compliance with EAR99 export control classification and HTSUS commodity code 8542.33.0001. The OPA182IDR carries active product status, ensuring long-term availability and continued manufacturer support, whereas the TLC2652AIP is designated Last Time Buy.

The OPA182IDR is currently in stock with 3100 units available, providing immediate supply continuity for design transitions and production requirements.

Frequently Asked Questions (FAQ)

Q: Can the OPA182IDR directly replace the TLC2652AIP in existing circuit designs?

A: The OPA182IDR provides functional equivalence in amplifier topology, circuit count, and electrical performance. However, the packaging differs: TLC2652AIP uses through-hole 8-DIP mounting while OPA182IDR uses surface-mount 8-SOIC. Direct socket replacement is not possible without board redesign and assembly process modification.

Q: What are the key electrical differences between these two amplifiers?

A: The OPA182IDR offers superior performance across multiple parameters. Slew rate increases from 3.1 V/µs to 10 V/µs, enabling faster signal transitions. Gain bandwidth product increases from 1.9 MHz to 5 MHz, supporting higher-frequency applications. Input offset voltage improves from 0.5 µV to 0.45 µV. Supply current decreases from 1.5 mA to 0.85 mA, reducing power consumption. Maximum supply voltage extends from 16 V to 36 V, and operating temperature range extends from 85°C to 125°C.

Q: Are there any supply voltage compatibility concerns?

A: The TLC2652AIP operates from 3.8 V to 16 V. The OPA182IDR operates from 4.5 V to 36 V. If the existing design operates below 4.5 V, the OPA182IDR cannot be used. For designs operating between 4.5 V and 16 V, the OPA182IDR is fully compatible and offers extended headroom to 36 V.

Q: What is the significance of the Last Time Buy status for the TLC2652AIP?

A: Last Time Buy status indicates that Texas Instruments has discontinued the TLC2652AIP and will no longer manufacture this component after existing inventory is depleted. Designs currently using this amplifier must transition to alternative components to ensure long-term supply continuity and production sustainability.

Q: How does the packaging change affect circuit board design?

A: The TLC2652AIP uses through-hole 8-DIP packaging (0.300" width, 7.62mm pitch), which requires drilled holes and wave soldering or manual insertion. The OPA182IDR uses surface-mount 8-SOIC packaging (0.154" width, 3.90mm), which requires surface-mount assembly equipment and reflow soldering. Board layout, footprint, and assembly process must be modified accordingly.

Q: Are both components RoHS compliant?

A: The TLC2652AIP is ROHS3 compliant. The OPA182IDR RoHS status is listed as not applicable. Both components carry EAR99 export classification and HTSUS code 8542.33.0001, indicating equivalent regulatory treatment for export and tariff purposes.

Q: What is the input bias current difference, and does it matter?

A: The TLC2652AIP specifies 4 pA input bias current, while the OPA182IDR specifies 50 pA. For most precision measurement applications, this difference is negligible. However, in ultra-high-impedance input circuits (>10 GΩ), the higher bias current of the OPA182IDR may introduce measurable error. Circuit analysis is required for such applications.

Q: Can the OPA182IDR operate at the same temperature range as the TLC2652AIP?

A: The TLC2652AIP operates from -40°C to 85°C. The OPA182IDR operates from -40°C to 125°C. The OPA182IDR exceeds the temperature range of the original component, providing extended thermal capability for high-temperature applications.