TLC274BID Equivalent & Substitute Parts

Part Overview

The TLC274BID is a general-purpose operational amplifier integrated circuit manufactured by Texas Instruments, configured as a 4-circuit device in a 14-SOIC surface mount package. This part is classified as obsolete, with 50,300 units currently in stock. The TLC274BID operates across a supply voltage range of 4V to 16V and is suitable for applications requiring low-power, general-purpose amplification in industrial and commercial environments. Due to its obsolete status, identifying equivalent and substitute parts is necessary for design continuity and long-term component availability assurance.

Substiute Parts

TLC274BID

Texas InstrumentsIn Stock: 50336TLC274BID Datasheet

Current PartRFQ

TLC274BIDR

Texas InstrumentsIn Stock: 4658TLC274BIDR Datasheet

MFR RecommendedRFQ

TS27L4AIDT

STMicroelectronicsIn Stock: 1887TS27L4AIDT Datasheet

MFR RecommendedRFQ

TS27L4CDT

STMicroelectronicsIn Stock: 30238TS27L4CDT Datasheet

MFR RecommendedRFQ

TS27L4IDT

STMicroelectronicsIn Stock: 23476TS27L4IDT Datasheet

MFR RecommendedRFQ

TS27M4IDT

STMicroelectronicsIn Stock: 7922TS27M4IDT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLC274BID are grouped based on strict electrical and mechanical compatibility criteria. The primary substitution logic is determined by the following parameters:

Mechanical Compatibility: All substitute parts must use the 14-SOIC surface mount package with 0.154" (3.90mm) width to ensure PCB footprint compatibility.

Electrical Compatibility: Substitute parts must operate within the supply voltage range of 4V to 16V minimum and support 4-circuit amplifier configuration. The slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current per channel are secondary parameters that determine functional equivalence within specific application contexts.

Product Status Consideration: The TLC274BIDR represents a direct equivalent from the same manufacturer (Texas Instruments) with identical electrical specifications but active product status. The STMicroelectronics TS27L4 series (TS27L4CDT, TS27L4AIDT, TS27L4IDT) and TS27M4IDT offer alternative CMOS implementations with different performance characteristics but compatible package and supply voltage requirements.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Recommended for Obsolescence Mitigation):

The TLC274BIDR is the primary substitute for the TLC274BID. Both parts are manufactured by Texas Instruments and share identical electrical specifications, including slew rate (3.6V/µs), gain bandwidth product (2.2 MHz), input bias current (0.6 pA), input offset voltage (340 µV), supply current (2.7 mA per 4 channels), and output current per channel (30 mA). The TLC274BIDR is classified as active product status, ensuring long-term availability and supply chain continuity. Both parts operate across the 4V to 16V supply voltage range and support the -40°C to 85°C operating temperature range. The TLC274BIDR is packaged in Cut Tape (CT) and Digi-Reel® format, providing flexible procurement options.

Alternative Substitutes (CMOS Technology):

The STMicroelectronics TS27L4 series (TS27L4CDT, TS27L4AIDT, TS27L4IDT) and TS27M4IDT represent alternative implementations using CMOS technology. These parts maintain mechanical compatibility through the 14-SOIC package and support the 3V to 16V supply voltage range, which encompasses the TLC274BID operating range. All substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's compliance profile.

Performance Trade-offs:

The TS27L4 series exhibits significantly lower slew rate (0.04V/µs) and gain bandwidth product (100 kHz) compared to the TLC274BID (3.6V/µs and 2.2 MHz respectively), making these parts suitable only for low-frequency applications. The TS27L4 series offers substantially lower supply current (10 µA per 4 channels) compared to the TLC274BID (2.7 mA), providing power efficiency advantages in battery-powered or low-power applications.

The TS27M4IDT provides intermediate performance with slew rate of 0.6V/µs and gain bandwidth product of 1 MHz, with higher supply current (150 µA per 4 channels) than the TS27L4 series but lower than the TLC274BID.

Temperature Range Considerations:

The TLC274BIDR maintains the original -40°C to 85°C operating temperature range. The TS27L4AIDT and TS27L4IDT extend the upper temperature limit to 125°C. The TS27L4CDT operates within a narrower range (0°C to 70°C), which may not be suitable for industrial applications requiring full -40°C to 85°C coverage.

Frequently Asked Questions (FAQ)

Q: Can the TLC274BIDR be used as a direct replacement for the TLC274BID?

A: Yes. The TLC274BIDR is manufactured by Texas Instruments and shares identical electrical specifications with the TLC274BID, including slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current per channel, and supply voltage range. Both parts use the 14-SOIC surface mount package. The primary difference is product status: TLC274BIDR is active, while TLC274BID is obsolete. PCB footprint and electrical performance are fully compatible.

Q: What are the key differences between the TLC274BID and the STMicroelectronics TS27L4 series?

A: The TLC274BID uses bipolar technology with a slew rate of 3.6V/µs and gain bandwidth product of 2.2 MHz. The TS27L4 series uses CMOS technology with significantly lower slew rate (0.04V/µs) and gain bandwidth product (100 kHz). The TS27L4 series consumes substantially less supply current (10 µA per 4 channels versus 2.7 mA). Both maintain the 14-SOIC package and 4V to 16V supply voltage compatibility. The TS27L4 series is suitable only for low-frequency applications where the reduced bandwidth is acceptable.

Q: Which substitute part should be selected for high-frequency applications?

A: The TLC274BIDR is the appropriate choice for high-frequency applications, as it maintains the original TLC274BID specifications including 3.6V/µs slew rate and 2.2 MHz gain bandwidth product. The TS27M4IDT offers intermediate performance (0.6V/µs slew rate, 1 MHz gain bandwidth product) and may be suitable for mid-frequency applications. The TS27L4 series is not recommended for high-frequency applications due to its 0.04V/µs slew rate and 100 kHz bandwidth limitation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The TLC274BIDR, TS27L4AIDT, TS27L4CDT, TS27L4IDT, and TS27M4IDT are all ROHS3 compliant. All parts carry MSL 1 (Unlimited) moisture sensitivity rating and REACH Unaffected status, matching the original TLC274BID compliance profile.

Q: What is the operating temperature range for each substitute part?

A: The TLC274BIDR maintains the original -40°C to 85°C range. The TS27L4AIDT and TS27L4IDT extend to -40°C to 125°C. The TS27L4CDT operates within 0°C to 70°C, which does not cover the full industrial temperature range of the original part. Selection should be based on specific application temperature requirements.

Q: Can the TS27L4 series be used in applications originally designed for the TLC274BID?

A: Mechanical and supply voltage compatibility exist, but electrical performance differs significantly. The TS27L4 series is suitable only for applications where the reduced slew rate (0.04V/µs) and lower gain bandwidth product (100 kHz) are acceptable. Applications requiring the original 3.6V/µs slew rate or 2.2 MHz bandwidth must use the TLC274BIDR. Detailed circuit analysis is required to determine functional equivalence in specific applications.

Q: What packaging options are available for each substitute part?

A: The TLC274BIDR is available in Cut Tape (CT) and Digi-Reel® packaging. The TS27L4AIDT is supplied in Tape & Reel (TR) format. The TS27L4CDT is available in Cut Tape (CT). The TS27L4IDT is supplied in Cut Tape (CT) and Digi-Reel® format. The TS27M4IDT is available in Cut Tape (CT). All parts use the 14-SOIC surface mount package with identical PCB footprint.