TLC2652AI-8DR Zero-Drift Operational Amplifier Equivalent & Substitute Parts

Part Overview

The TLC2652AI-8DR is an active zero-drift operational amplifier manufactured by Texas Instruments, designed for precision analog signal conditioning applications. This device belongs to the LinCMOS™ series and is classified as a linear amplifier with single-ended output configuration. The part is currently in active production status with 5,660 units available in new original inventory.

Zero-drift amplifiers are essential in applications requiring extremely low input offset voltage and minimal drift over temperature and time. The TLC2652AI-8DR addresses precision measurement, sensor signal conditioning, and data acquisition systems where offset voltage stability is critical. Substitute parts are identified when original inventory becomes unavailable, when supply chain constraints occur, or when design flexibility is required for multi-source procurement strategies.

Substiute Parts

TLC2652AI-8DR

Texas InstrumentsIn Stock: 5753TLC2652AI-8DR Datasheet

Current PartRFQ

ICL7650SCBA-1Z

Renesas Electronics CorporationIn Stock: 2304ICL7650SCBA-1Z Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLC2652AI-8DR is determined by strict alignment of the following critical parameters:

Mechanical Compatibility:

• Package type: 8-SOIC (0.154", 3.90mm Width)
• Mounting type: Surface Mount
• Pin count and footprint equivalence

Functional Classification:

• Amplifier type: Zero-Drift
• Number of circuits: 1
• Output configuration: Single-Ended

Electrical Operating Range:

• Supply voltage span must encompass or overlap the original part's 3.8 V to 16 V range
• Operating temperature range must support the application's thermal requirements
• Input bias current: 4 pA (matching specification)

Performance Characteristics:

• Input offset voltage: Substitute must meet or exceed precision requirements
• Slew rate and gain bandwidth product: Must be suitable for signal bandwidth requirements
• Output current capability: Must support load requirements

The ICL7650SCBA-1Z from Renesas Electronics Corporation qualifies as a manufacturer-recommended substitute based on matching mechanical package, zero-drift amplifier classification, single-circuit configuration, and compatible electrical operating parameters within the specified ranges.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The ICL7650SCBA-1Z is a qualified substitute for the TLC2652AI-8DR based on matching package geometry, zero-drift amplifier topology, and overlapping electrical specifications. Both devices are ROHS3 compliant and carry MSL Level 1 moisture sensitivity ratings, ensuring equivalent environmental and regulatory compliance.

Application Scope Considerations:

The TLC2652AI-8DR supports extended operating temperature range (-40°C to 85°C) compared to the ICL7650SCBA-1Z (0°C to 70°C). Applications requiring operation below 0°C or above 70°C must retain the TLC2652AI-8DR.

The TLC2652AI-8DR provides higher output current capability (50 mA versus 30 mA) and lower minimum supply voltage (3.8 V versus 4.5 V). Applications with output current requirements exceeding 30 mA or supply voltages below 4.5 V must use the TLC2652AI-8DR.

The TLC2652AI-8DR exhibits superior slew rate (3.1 V/µs versus 2.5 V/µs) and lower input offset voltage (0.5 µV versus 0.7 µV). High-speed signal conditioning or ultra-precision measurement applications may require the TLC2652AI-8DR performance characteristics.

Regulatory and Supply Chain:

Both parts maintain active production status and ROHS3 compliance. Selection between these devices should be based on specific application electrical requirements rather than regulatory considerations.

Frequently Asked Questions (FAQ)

Q: Can the ICL7650SCBA-1Z directly replace the TLC2652AI-8DR in all applications?

A: Direct replacement is possible only when application requirements fall within the ICL7650SCBA-1Z operating envelope. Verify that your application operates within 0°C to 70°C temperature range, requires output current ≤30 mA, and operates at supply voltages ≥4.5 V. If any requirement exceeds these limits, the TLC2652AI-8DR must be retained.

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

A: The primary differences are: input offset voltage (0.5 µV vs 0.7 µV), slew rate (3.1 V/µs vs 2.5 V/µs), output current capability (50 mA vs 30 mA), supply current (1.5 mA vs 2.0 mA), minimum supply voltage (3.8 V vs 4.5 V), and operating temperature range (-40°C to 85°C vs 0°C to 70°C). All other parameters including input bias current, gain bandwidth product, and package configuration are equivalent.

Q: Are the PCB footprints identical for both parts?

A: Yes. Both the TLC2652AI-8DR and ICL7650SCBA-1Z use the 8-SOIC package with 0.154" (3.90mm) width. PCB footprints are mechanically and electrically compatible without modification.

Q: What compliance certifications apply to both parts?

A: Both devices are ROHS3 compliant, carry MSL Level 1 moisture sensitivity rating (unlimited floor life), and are REACH unaffected. Both are classified under ECCN EAR99 and HTSUS 8542.33.0001.

Q: Which part should be selected for low-temperature applications below 0°C?

A: The TLC2652AI-8DR must be used for applications requiring operation below 0°C, as the ICL7650SCBA-1Z operating temperature range begins at 0°C.

Q: Can the ICL7650SCBA-1Z be used in applications requiring 50 mA output current?

A: No. The ICL7650SCBA-1Z maximum output current per channel is 30 mA. Applications requiring 50 mA output current must use the TLC2652AI-8DR.