TLC4502CD Equivalent & Substitute Parts

Part Overview

The TLC4502CD is a CMOS amplifier integrated circuit manufactured by Texas Instruments, featuring two independent rail-to-rail output circuits in an 8-SOIC surface mount package. This device is classified as Last Time Buy, indicating discontinued production with limited inventory availability. The TLC4502CD operates across a 4V to 6V supply span and is designed for applications requiring low input bias current and minimal input offset voltage in compact form factors.

Substitute parts are necessary due to the Last Time Buy status of the TLC4502CD. Alternative components from active product lines provide equivalent functionality with extended availability and potentially improved performance characteristics across broader operating temperature ranges.

Substiute Parts

TLC4502CD

Texas InstrumentsIn Stock: 1413TLC4502CD Datasheet

Current PartRFQ

MAX4252ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2003MAX4252ESA+ Datasheet

MFR RecommendedRFQ

MAX4257ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2078MAX4257ESA+ Datasheet

MFR RecommendedRFQ

MAX4257ESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 5474MAX4257ESA+T Datasheet

MFR RecommendedRFQ

MAX4282ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1343MAX4282ESA+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the TLC4502CD is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Package type: 8-SOIC surface mount form factor (0.154", 3.90mm width)
• Number of circuits: 2 independent amplifier channels
• Output configuration: Rail-to-rail capability
• Supply voltage range: Minimum 4V to maximum 6V overlap with TLC4502CD operating range
• Mounting type: Surface mount

Performance Parameters Affecting Substitution:

• Slew rate (determines signal fidelity in dynamic applications)
• Gain bandwidth product (defines frequency response capability)
• Input bias current and input offset voltage (affect signal integrity)
• Supply current consumption (impacts power budget)
• Output current per channel (determines load driving capability)
• Operating temperature range (defines environmental suitability)

The substitute parts listed below meet the mandatory compatibility criteria. Performance variations exist in secondary parameters; selection depends on specific application requirements within the defined operating envelope.

Parameter Comparison

Engineering Selection Recommendations

MAX4257ESA+ and MAX4257ESA+T (Preferred Substitutes)

The MAX4257ESA+ and MAX4257ESA+T are functionally equivalent substitutes for the TLC4502CD. Both variants feature identical electrical specifications with a gain bandwidth product of 22 MHz, exceeding the TLC4502CD's 4.7 MHz capability. The slew rate of 2.1 V/µs closely matches the original specification of 2.5 V/µs. Supply current consumption is significantly reduced (0.42 mA versus 2.5 mA), providing power efficiency advantages. Both parts maintain ROHS3 compliance and MSL 1 rating. The MAX4257ESA+T variant is supplied in Tape & Reel packaging with higher inventory availability (5384 units), while MAX4257ESA+ is supplied in Tube packaging (2000 units). Both support extended operating temperature range (-40°C to 85°C) compared to the TLC4502CD (0°C to 70°C), enabling deployment in broader environmental conditions. Product status is Active for both variants, ensuring long-term availability.

MAX4252ESA+ (Alternative Substitute)

The MAX4252ESA+ provides substitution capability with lower slew rate (0.3 V/µs) and reduced gain bandwidth product (3 MHz) relative to the TLC4502CD. This part is suitable for applications where signal bandwidth requirements are less demanding. Supply current consumption is 0.42 mA, matching the MAX4257 series. Output current per channel is 68 mA, exceeding the TLC4502CD specification. ROHS3 compliance and MSL 1 rating are maintained. Product status is Active with 1900 units in stock. Operating temperature range extends to -40°C to 85°C.

MAX4282ESA+ (Limited Substitution)

The MAX4282ESA+ is a GainAmp™ series device with the lowest gain bandwidth product (2 MHz) and highest input offset voltage (500 µV) among the substitute options. This part is suitable only for applications with minimal bandwidth requirements and where input offset voltage specifications are non-critical. Supply current consumption is the lowest at 0.32 mA. Product status is Active with 1291 units in stock. Operating temperature range is -40°C to 85°C. ROHS3 compliance and MSL 1 rating apply.

Compliance and Certification Summary

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the TLC4502CD specifications. REACH status is Unaffected for all parts. ECCN classification is EAR99 for all components. HTSUS code 8542.33.0001 applies uniformly across all parts.

Frequently Asked Questions (FAQ)

Q: Can MAX4257ESA+ directly replace TLC4502CD in existing PCB designs?

A: Yes. The MAX4257ESA+ is pin-compatible within the 8-SOIC package and maintains identical pinout. No PCB modifications are required. Electrical performance is superior in gain bandwidth product (22 MHz versus 4.7 MHz) and supply current efficiency (0.42 mA versus 2.5 mA). The extended operating temperature range (-40°C to 85°C) provides additional environmental flexibility.

Q: What is the difference between MAX4257ESA+ and MAX4257ESA+T?

A: Both parts are electrically identical. The primary difference is packaging format: MAX4257ESA+ is supplied in Tube packaging, while MAX4257ESA+T is supplied in Tape & Reel (TR) format. MAX4257ESA+T has significantly higher inventory availability (5384 units versus 2000 units). Selection depends on assembly process requirements and volume needs.

Q: Is the MAX4282ESA+ suitable as a direct replacement?

A: The MAX4282ESA+ meets package and pin compatibility requirements but exhibits reduced performance in gain bandwidth product (2 MHz versus 4.7 MHz) and significantly higher input offset voltage (500 µV versus 10 µV). This part is suitable only for applications where these performance reductions are acceptable. Verify application bandwidth and offset voltage requirements before selection.

Q: Why do substitute parts have lower supply current consumption?

A: The substitute parts (MAX series) employ more advanced semiconductor process technology compared to the legacy TLC4502CD design. This results in reduced quiescent current consumption while maintaining or exceeding performance specifications. Lower supply current provides power efficiency benefits in battery-powered or thermally constrained applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (MAX4252ESA+, MAX4257ESA+, MAX4257ESA+T, MAX4282ESA+) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the TLC4502CD compliance profile.

Q: What is the impact of extended operating temperature range on system design?

A: Substitute parts operate across -40°C to 85°C, compared to the TLC4502CD range of 0°C to 70°C. This extended range enables deployment in industrial, automotive, and outdoor applications requiring broader temperature tolerance. No design modifications are necessary; the extended range provides additional operational margin.

Q: Which substitute part offers the best overall performance match?

A: The MAX4257ESA+ and MAX4257ESA+T provide the closest performance match to the TLC4502CD with slew rate of 2.1 V/µs (versus 2.5 V/µs) and gain bandwidth product of 22 MHz (exceeding 4.7 MHz). Both maintain Active product status with extended availability. Selection between these two variants depends on packaging requirements: Tube for MAX4257ESA+ or Tape & Reel for MAX4257ESA+T.