TS274CD CMOS Amplifier Equivalent & Substitute Parts

Part Overview

The TS274CD is a CMOS amplifier integrated circuit manufactured by STMicroelectronics, configured as a 4-circuit operational amplifier in a 14-SOIC surface mount package. This device is classified as obsolete, making identification of functionally equivalent substitute components necessary for ongoing design support, production continuity, and component sourcing.

The TS274CD operates across a supply voltage range of 3V to 16V with a slew rate of 5.5V/µs and gain bandwidth product of 3.5 MHz. Its low input bias current of 1 pA and input offset voltage of 1.1 mV characterize its performance profile within the CMOS amplifier category.

Substiute Parts

TS274CD

STMicroelectronicsIn Stock: 2361TS274CD Datasheet

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LMC6034IM/NOPB

Texas InstrumentsIn Stock: 2659LMC6034IM/NOPB Datasheet

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LMC6034IMX/NOPB

Texas InstrumentsIn Stock: 30185LMC6034IMX/NOPB Datasheet

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TLC274CD

Texas InstrumentsIn Stock: 1767TLC274CD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TS274CD is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 14-SOIC (0.154", 3.90mm Width) surface mount package to ensure mechanical and electrical compatibility with existing PCB layouts.

Circuit Configuration: All candidates must provide 4 operational amplifier circuits within a single package.

Electrical Operating Range: Substitute parts must support the required supply voltage span. The TS274CD operates from 3V to 16V; substitute parts with narrower supply ranges may limit application flexibility.

Performance Characteristics: Slew rate, gain bandwidth product, input bias current, and output current per channel define the functional performance envelope. Substitutes with lower performance specifications may not meet application requirements; higher performance specifications are generally acceptable.

Compliance & Certification: All substitute parts must maintain ROHS3 compliance and MSL Level 1 rating to ensure manufacturing process compatibility and long-term reliability.

The substitute parts identified—LMC6034IM/NOPB, LMC6034IMX/NOPB, and TLC274CD—share the 14-SOIC package and 4-circuit configuration. However, they exhibit variations in electrical performance and operating temperature ranges that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

LMC6034IMX/NOPB (Preferred for New Designs)

The LMC6034IMX/NOPB is the recommended substitute for new production and design implementations. This device carries Active product status, ensuring long-term availability and manufacturing support. It is supplied in Cut Tape and Digi-Reel packaging, facilitating high-volume production workflows. The part maintains ROHS3 compliance and MSL Level 1 rating consistent with the TS274CD.

The LMC6034IMX/NOPB operates across a supply voltage range of 4.75V to 15.5V, which encompasses most applications within the TS274CD's 3V to 16V range, with the exception of designs requiring operation below 4.75V. The extended operating temperature range of -40°C to 85°C provides broader environmental coverage compared to the TS274CD's 0°C to 70°C specification.

Performance trade-offs include lower slew rate (1.1V/µs versus 5.5V/µs) and reduced gain bandwidth product (1.4 MHz versus 3.5 MHz). However, the LMC6034IMX/NOPB exhibits superior input bias current characteristics (0.04 pA versus 1 pA) and marginally lower output current per channel (40 mA versus 45 mA).

LMC6034IM/NOPB (Existing Inventory Alternative)

The LMC6034IM/NOPB provides equivalent electrical specifications to the LMC6034IMX/NOPB but carries Obsolete product status. This part is supplied in Tube packaging. Selection of this device is appropriate only when existing inventory is available and long-term sourcing is not a constraint.

TLC274CD (Performance-Matched Alternative)

The TLC274CD is classified as a General Purpose amplifier rather than CMOS type, yet maintains the same 14-SOIC package and 4-circuit configuration. Operating temperature range matches the TS274CD (0°C to 70°C), and supply voltage span is identical (3V to 16V). The slew rate of 3.6V/µs and gain bandwidth product of 2.2 MHz represent intermediate performance between the TS274CD and LMC6034 series.

The TLC274CD exhibits higher supply current consumption (2.7 mA across 4 channels versus 1 mA for TS274CD) and reduced output current per channel (30 mA versus 45 mA). This device carries Obsolete product status and Tube packaging. Selection is appropriate when performance characteristics align with application requirements and existing inventory is available.

Frequently Asked Questions (FAQ)

Q: Can the LMC6034IMX/NOPB directly replace the TS274CD in existing designs?

A: Direct replacement is possible if the application does not require operation below 4.75V supply voltage. The LMC6034IMX/NOPB's minimum supply voltage is 4.75V, compared to the TS274CD's 3V minimum. If the design operates at supply voltages between 3V and 4.75V, the LMC6034IMX/NOPB is not suitable. All other electrical parameters and the 14-SOIC package are compatible.

Q: What is the primary advantage of selecting LMC6034IMX/NOPB over other substitutes?

A: The LMC6034IMX/NOPB maintains Active product status, ensuring continued manufacturing availability and supply chain stability. This is the critical distinction from LMC6034IM/NOPB and TLC274CD, both of which are Obsolete. For new production designs, Active status provides long-term sourcing security.

Q: Are there performance differences that would affect circuit operation?

A: Yes. The LMC6034 series exhibits significantly lower slew rate (1.1V/µs versus 5.5V/µs) and reduced gain bandwidth product (1.4 MHz versus 3.5 MHz). Applications requiring high-speed signal processing or fast transient response may not perform equivalently. The TLC274CD provides intermediate performance (3.6V/µs slew rate, 2.2 MHz bandwidth) and may be more suitable for such applications.

Q: Do all substitute parts maintain the same packaging and mounting compatibility?

A: Yes. All substitute parts use the 14-SOIC (0.154", 3.90mm Width) surface mount package. PCB layouts, footprints, and reflow profiles remain unchanged. Packaging format differs (Tube versus Cut Tape/Digi-Reel), but this affects supply chain logistics, not electrical or mechanical compatibility.

Q: What compliance certifications are maintained across all parts?

A: All parts—TS274CD, LMC6034IM/NOPB, LMC6034IMX/NOPB, and TLC274CD—maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating. REACH status is Unaffected for all devices. Manufacturing process compatibility and long-term reliability characteristics are preserved.

Q: Which substitute should be selected for designs operating at 3V supply voltage?

A: The TLC274CD is the only substitute supporting 3V minimum supply voltage operation. The LMC6034 series requires minimum 4.75V. If 3V operation is mandatory, the TLC274CD is the appropriate selection, accepting the trade-offs in slew rate and gain bandwidth product.

Q: Is the extended operating temperature range of LMC6034 devices a disadvantage?

A: No. The LMC6034 series operates from -40°C to 85°C, compared to the TS274CD's 0°C to 70°C. Extended temperature range provides additional environmental coverage and is not a disadvantage. Applications requiring operation only within 0°C to 70°C are fully supported.