TLC4502IDRG4 Equivalent & Substitute Parts

Part Overview

The TLC4502IDRG4 is a CMOS amplifier integrated circuit manufactured by Texas Instruments, featuring 2 circuits with rail-to-rail output capability in an 8-SOIC surface mount package. This device is classified as a linear amplifier and is ROHS3 compliant with unlimited moisture sensitivity level rating.

The TLC4502IDRG4 has been discontinued at DiGi Electronics. Equivalent and substitute parts are available from both Texas Instruments and Analog Devices Inc./Maxim Integrated product lines to maintain design continuity and ensure component availability for production and replacement applications.

Substiute Parts

TLC4502IDRG4

Texas InstrumentsIn Stock: 728TLC4502IDRG4 Datasheet

Current PartRFQ

TLC4502IDR

Texas InstrumentsIn Stock: 8381TLC4502IDR 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

Substitution of the TLC4502IDRG4 is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure mechanical and electrical compatibility with existing PCB layouts.

Electrical Characteristics: Substitute parts must maintain compatibility across the following key specifications:

• Number of Circuits: 2 channels
• Output Type: Rail-to-Rail capability
• Voltage Supply Range: Minimum 4V to 6V maximum for the main part; substitutes with wider ranges (2.4V to 5.5V) are acceptable as they encompass the original operating window
• Operating Temperature Range: -40°C to 125°C for the main part; substitutes rated to -40°C to 85°C operate within a subset of this range

Compliance Requirements: All substitute parts must maintain ROHS3 compliance and MSL Level 1 rating to ensure regulatory and manufacturing process compatibility.

Product Status: The primary substitute (TLC4502IDR) is the direct equivalent from Texas Instruments in active production status. Secondary substitutes from Analog Devices Inc./Maxim Integrated (MAX4252ESA+, MAX4257ESA+, MAX4282ESA+) are alternative general-purpose amplifiers with active product status.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TLC4502IDR

The TLC4502IDR is the direct equivalent to the TLC4502IDRG4, manufactured by Texas Instruments. This part maintains identical electrical specifications including slew rate (2.5V/µs), gain bandwidth product (4.7 MHz), input bias current (1 pA), and input offset voltage (10 µV). The TLC4502IDR is in active production status with higher inventory availability (8321 pieces) compared to the discontinued TLC4502IDRG4. Both parts share the same base product number (TLC4502) and are packaged in 8-SOIC format. The TLC4502IDR is supplied in Cut Tape and Digi-Reel packaging options. This part is the recommended first choice for direct replacement.

Secondary Substitutes: MAX4252ESA+, MAX4257ESA+, MAX4282ESA+

These Analog Devices Inc./Maxim Integrated parts are general-purpose amplifiers with 2 circuits in 8-SOIC packages. All three maintain rail-to-rail output capability and ROHS3 compliance. Selection among these three depends on specific application requirements:

• MAX4252ESA+ offers lower slew rate (0.3V/µs) and gain bandwidth product (3 MHz) with reduced supply current (420µA). This part is suitable for low-power applications where bandwidth requirements are modest.

• MAX4257ESA+ provides higher slew rate (2.1V/µs) and significantly higher gain bandwidth product (22 MHz), making it suitable for applications requiring faster signal processing and wider bandwidth. Supply current remains at 420µA.

• MAX4282ESA+ is part of the GainAmp™ series with the lowest gain bandwidth product (2 MHz) and lowest supply current (320µA). Input offset voltage is higher at 500µV. This part is optimized for ultra-low power consumption applications.

All secondary substitutes operate within the voltage supply range of 2.4V to 5.5V, which encompasses the original part's 4V to 6V range. Operating temperature range for these parts is -40°C to 85°C, which is a subset of the original -40°C to 125°C specification. Applications requiring operation above 85°C must use the TLC4502IDR.

Frequently Asked Questions (FAQ)

Q: Can TLC4502IDR be used as a direct replacement for TLC4502IDRG4?

A: Yes. The TLC4502IDR is the direct equivalent with identical electrical specifications and package format. Both parts are CMOS amplifiers with 2 circuits, rail-to-rail output, and 8-SOIC packaging. The primary difference is product status: TLC4502IDRG4 is discontinued while TLC4502IDR is in active production.

Q: What are the key differences between TLC4502IDR and the MAX42xx series substitutes?

A: The TLC4502IDR is a CMOS amplifier, while MAX4252ESA+, MAX4257ESA+, and MAX4282ESA+ are general-purpose amplifiers. The TLC4502IDR maintains the original slew rate (2.5V/µs) and gain bandwidth product (4.7 MHz). The MAX series parts have different performance characteristics: MAX4252ESA+ has lower bandwidth (3 MHz), MAX4257ESA+ has higher bandwidth (22 MHz), and MAX4282ESA+ has the lowest bandwidth (2 MHz). Supply current consumption also differs significantly, with MAX series parts consuming 320-420µA compared to 2500µA for the TLC4502IDR.

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

A: Yes. All substitute parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package, ensuring mechanical compatibility with existing PCB designs. Pin configuration and spacing are identical across all listed parts.

Q: What is the operating temperature limitation when using MAX series substitutes?

A: MAX4252ESA+, MAX4257ESA+, and MAX4282ESA+ are rated for -40°C to 85°C operation. The original TLC4502IDRG4 and its direct equivalent TLC4502IDR are rated for -40°C to 125°C. Applications requiring operation above 85°C must use TLC4502IDR.

Q: Which substitute should be selected for low-power applications?

A: MAX4282ESA+ offers the lowest supply current at 320µA (x2 channels), making it the optimal choice for battery-powered or ultra-low-power applications. MAX4252ESA+ provides a middle ground at 420µA supply current. Both maintain rail-to-rail output capability and ROHS3 compliance.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. TLC4502IDR, MAX4252ESA+, MAX4257ESA+, and MAX4282ESA+ are all ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the original TLC4502IDRG4.

Q: What is the difference between push-pull and rail-to-rail output types?

A: All listed parts feature rail-to-rail output capability. MAX4252ESA+ and MAX4257ESA+ additionally specify push-pull output configuration. Rail-to-rail output allows the amplifier to swing its output voltage to both supply rails, maximizing the usable output voltage range. Push-pull configuration indicates the output stage uses complementary transistor pairs for improved drive capability.

Q: Can MAX4257ESA+ be used in applications requiring the original 4.7 MHz bandwidth?

A: MAX4257ESA+ has a gain bandwidth product of 22 MHz, which exceeds the original 4.7 MHz specification. This higher bandwidth is compatible with applications designed for 4.7 MHz operation. However, the higher bandwidth may introduce different noise characteristics and frequency response behavior. Circuit validation is necessary to confirm suitability for specific applications.