TLC4502AMDG4 Equivalent & Substitute Parts

Part Overview

The TLC4502AMDG4 is a CMOS dual-channel operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device features rail-to-rail output capability and is designed for general-purpose analog signal conditioning applications requiring low input bias current and low input offset voltage.

The TLC4502AMDG4 has been discontinued at DiGi Electronics. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements. Substitute parts must maintain electrical and mechanical compatibility within the specified parameter ranges.

Substiute Parts

TLC4502AMDG4

Texas InstrumentsIn Stock: 2221TLC4502AMDG4 Datasheet

Current PartRFQ

TLC4502AMD

Texas InstrumentsIn Stock: 1020TLC4502AMD Datasheet

MFR RecommendedRFQ

MAX4252ESA+

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

MFR RecommendedRFQ

MAX4257ESA+

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

MFR RecommendedRFQ

MAX4282ESA+

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLC4502AMDG4 are evaluated based on the following critical parameters that determine functional and mechanical compatibility:

Primary Compatibility Criteria:

• Package type: 8-SOIC surface mount form factor
• Number of circuits: 2 channels
• Output configuration: Rail-to-rail capability
• Supply voltage range: Minimum 4 V to maximum 6 V overlap
• Operating temperature range: Coverage of -55°C to 125°C or subset thereof
• Mounting type: Surface mount

Secondary Performance Parameters:

• Slew rate: 2.5 V/µs or greater
• Gain bandwidth product: 4.7 MHz or greater
• Input bias current: 1 pA or lower
• Input offset voltage: 10 µV or lower
• Output current per channel: 50 mA or greater
• Supply current: 2.5 mA per channel or lower

Substitute parts are grouped into two categories based on their ability to meet these criteria within the specified electrical and mechanical constraints.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TLC4502AMD

The TLC4502AMD is the direct equivalent to the TLC4502AMDG4. Both devices are manufactured by Texas Instruments and share identical electrical specifications across all critical parameters: CMOS amplifier type, 2.5 V/µs slew rate, 4.7 MHz gain bandwidth product, 1 pA input bias current, 10 µV input offset voltage, and 8-SOIC package configuration. The TLC4502AMD maintains the same supply voltage range (4 V to 6 V) and output current capability (50 mA per channel). The device is currently in Last Time Buy status, indicating continued availability for near-term procurement. Both parts are ROHS3 compliant with MSL 1 rating.

Secondary Substitutes: MAX4257ESA+, MAX4252ESA+, MAX4282ESA+

The MAX4257ESA+, MAX4252ESA+, and MAX4282ESA+ are manufactured by Analog Devices Inc./Maxim Integrated and provide functional alternatives in the same 8-SOIC package. All three devices are currently in Active product status with higher inventory availability than the TLC4502AMDG4.

The MAX4257ESA+ offers the closest performance match among the Maxim alternatives, with a slew rate of 2.1 V/µs (compared to 2.5 V/µs) and a gain bandwidth product of 22 MHz (exceeding the 4.7 MHz specification). Input bias current is 0.1 pA and input offset voltage is 70 µV. Supply current is significantly lower at 0.42 mA per channel. The device operates within the 2.4 V to 5.5 V supply range, which overlaps the TLC4502AMDG4 specification. Operating temperature range is -40°C to 85°C, which is narrower than the original part.

The MAX4252ESA+ provides lower slew rate (0.3 V/µs) and lower gain bandwidth product (3 MHz), making it suitable for applications where these reduced performance parameters are acceptable. Input bias current is 0.1 pA and input offset voltage is 70 µV. Supply current is 0.42 mA per channel.

The MAX4282ESA+ is part of the GainAmp™ series and features the lowest supply current (0.32 mA per channel) but has reduced performance specifications: 0.7 V/µs slew rate and 2 MHz gain bandwidth product. Input bias current is 50 pA and input offset voltage is 500 µV, both higher than the original specification.

All substitute parts are ROHS3 compliant with MSL 1 rating and are suitable for surface mount assembly in 8-SOIC packages.

Frequently Asked Questions (FAQ)

Q: Can the TLC4502AMD be used as a direct replacement for the TLC4502AMDG4?

A: Yes. The TLC4502AMD is electrically and mechanically identical to the TLC4502AMDG4. Both devices share the same CMOS amplifier architecture, 2-channel configuration, 8-SOIC package, and all critical electrical parameters including slew rate, gain bandwidth product, input bias current, input offset voltage, and supply voltage range. The only difference is product status: TLC4502AMDG4 is discontinued while TLC4502AMD is in Last Time Buy status.

Q: What are the key differences between the TLC4502AMDG4 and the MAX4257ESA+?

A: The primary differences are: (1) Amplifier type—TLC4502AMDG4 is CMOS while MAX4257ESA+ is general purpose; (2) Slew rate—TLC4502AMDG4 is 2.5 V/µs versus MAX4257ESA+ at 2.1 V/µs; (3) Gain bandwidth product—TLC4502AMDG4 is 4.7 MHz versus MAX4257ESA+ at 22 MHz; (4) Input offset voltage—TLC4502AMDG4 is 10 µV versus MAX4257ESA+ at 70 µV; (5) Operating temperature range—TLC4502AMDG4 is -55°C to 125°C versus MAX4257ESA+ at -40°C to 85°C. Both devices share the same 8-SOIC package and rail-to-rail output capability.

Q: Are all substitute parts compatible with the same PCB layout?

A: Yes. All substitute parts listed use the 8-SOIC (0.154", 3.90mm Width) surface mount package. Pin-to-pin compatibility is maintained across all alternatives, allowing direct substitution on existing PCB layouts without modification.

Q: Which substitute part has the lowest power consumption?

A: The MAX4282ESA+ has the lowest supply current at 0.32 mA per channel, compared to 2.5 mA per channel for the TLC4502AMDG4. However, the MAX4282ESA+ has reduced performance specifications including lower slew rate (0.7 V/µs) and lower gain bandwidth product (2 MHz).

Q: What is the operating temperature limitation when using MAX4257ESA+ or MAX4252ESA+ as substitutes?

A: The MAX4257ESA+ and MAX4252ESA+ operate within -40°C to 85°C, which is narrower than the TLC4502AMDG4 range of -55°C to 125°C. These substitutes are not suitable for applications requiring operation below -40°C or above 85°C.

Q: Do all substitute parts meet RoHS and REACH compliance requirements?

A: Yes. All listed substitute parts, including TLC4502AMD, MAX4257ESA+, MAX4252ESA+, and MAX4282ESA+, are ROHS3 compliant and REACH unaffected. All devices have Moisture Sensitivity Level 1 (Unlimited).

Q: Which substitute part offers the best performance match to the TLC4502AMDG4?

A: The TLC4502AMD is the best performance match, as it is electrically identical to the TLC4502AMDG4. Among the Maxim alternatives, the MAX4257ESA+ provides the closest performance with a slew rate of 2.1 V/µs and gain bandwidth product of 22 MHz, though both values differ from the original specification.