TLV274CDG4 Equivalent & Substitute Parts

Part Overview

The TLV274CDG4 is a general-purpose operational amplifier featuring four independent circuits in a 14-SOIC surface-mount package. Manufactured by Texas Instruments, this rail-to-rail amplifier is designed for low-power applications requiring compact integration. The device is currently classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional and mechanical compatibility for ongoing production and maintenance applications.

Substiute Parts

TLV274CDG4

Texas InstrumentsIn Stock: 771TLV274CDG4 Datasheet

Current PartRFQ

TLV274CD

Texas InstrumentsIn Stock: 1897TLV274CD Datasheet

MFR RecommendedRFQ

AD8668ARZ

Analog Devices Inc.In Stock: 2283AD8668ARZ Datasheet

MFR RecommendedRFQ

AD8668ARZ-REEL

Analog Devices Inc.In Stock: 1965AD8668ARZ-REEL Datasheet

MFR RecommendedRFQ

AD8668ARZ-REEL7

Analog Devices Inc.In Stock: 61078AD8668ARZ-REEL7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLV274CDG4 is determined by strict adherence to the following critical parameters:

Mechanical Compatibility:

• Package type: 14-SOIC form factor with 0.154" (3.90mm) width
• Mounting type: Surface mount configuration
• Pin count and pinout: 14-pin SOIC standard

Electrical Compatibility:

• Circuit count: Four independent operational amplifier circuits
• Output configuration: Rail-to-rail output capability
• Supply voltage range: Minimum 2.7 V to maximum 16 V overlap required
• Amplifier classification: General-purpose operational amplifier

Regulatory Compliance:

• RoHS3 compliance status
• Moisture sensitivity level MSL 1

Substitute parts must satisfy all mechanical and electrical parameters within the specified ranges. Packaging format (tube, tape & reel) represents a secondary consideration that does not affect functional substitution.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TLV274CD

The TLV274CD represents the direct active equivalent to the obsolete TLV274CDG4. Both devices are manufactured by Texas Instruments and share identical electrical specifications across all critical parameters: four-circuit general-purpose amplifier configuration, rail-to-rail output, 2.7 V to 16 V supply range, and 0°C to 70°C operating temperature. The TLV274CD maintains the same 14-SOIC package footprint and pinout. The only distinction is packaging format (tube versus dip tube), which does not affect functional performance. This part is currently in active production status with 1799 units in stock inventory.

Secondary Substitutes: AD8668ARZ, AD8668ARZ-REEL, AD8668ARZ-REEL7

The Analog Devices AD8668 series (available in tube and tape & reel packaging variants) provides functional substitution with enhanced performance characteristics. All three variants maintain the 14-SOIC package configuration and four-circuit rail-to-rail amplifier topology. The AD8668 series demonstrates improved specifications including higher slew rate (3.5 V/µs versus 2.6 V/µs), increased gain bandwidth product (4 MHz versus 3 MHz), lower input bias current (0.2 pA versus 1 pA), and significantly higher output current capability (140 mA versus 8 mA per channel).

The AD8668 series operates across a 5 V to 16 V supply range, which overlaps the TLV274CDG4 range above 5 V. Applications requiring supply voltages below 5 V must use the TLV274CD. The AD8668 series supports extended operating temperature range (-40°C to 125°C) compared to the TLV274CDG4 (0°C to 70°C), providing broader environmental compatibility. All variants maintain ROHS3 compliance and MSL 1 moisture sensitivity rating.

Packaging Considerations:

• TLV274CD: Tube packaging suitable for manual assembly and lower-volume applications
• AD8668ARZ: Tube packaging for manual assembly operations
• AD8668ARZ-REEL and AD8668ARZ-REEL7: Tape & reel packaging for automated high-volume production environments

Selection between AD8668ARZ-REEL and AD8668ARZ-REEL7 depends on reel configuration requirements; both devices are electrically identical.

Frequently Asked Questions (FAQ)

Q: Can the TLV274CD directly replace the TLV274CDG4 in all applications?

A: Yes. The TLV274CD is the direct active equivalent. Both devices share identical electrical specifications, pinout, and 14-SOIC package footprint. The only difference is packaging format (tube), which does not affect circuit performance or PCB assembly compatibility.

Q: What are the key differences between TLV274CD and AD8668ARZ substitutes?

A: Both maintain the same package and four-circuit configuration. The AD8668ARZ offers enhanced performance: higher slew rate (3.5 V/µs vs. 2.6 V/µs), higher gain bandwidth product (4 MHz vs. 3 MHz), lower input bias current (0.2 pA vs. 1 pA), and higher output current (140 mA vs. 8 mA per channel). The AD8668ARZ requires minimum 5 V supply, while TLV274CD operates from 2.7 V. The AD8668ARZ supports -40°C to 125°C temperature range versus 0°C to 70°C for TLV274CD.

Q: Which substitute should I select for low-voltage applications below 5 V?

A: Use TLV274CD. The AD8668 series requires minimum 5 V supply voltage and is not suitable for applications operating below this threshold. The TLV274CD maintains the original 2.7 V minimum supply specification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. TLV274CD, AD8668ARZ, AD8668ARZ-REEL, and AD8668ARZ-REEL7 are all ROHS3 compliant with MSL 1 moisture sensitivity rating, matching the original TLV274CDG4 specifications.

Q: What is the difference between AD8668ARZ-REEL and AD8668ARZ-REEL7?

A: Both variants are electrically identical four-circuit rail-to-rail amplifiers in 14-SOIC packages. The difference is reel configuration for automated assembly. AD8668ARZ-REEL7 has higher inventory availability (61,000 units) compared to AD8668ARZ-REEL (1,900 units). Selection depends on your production equipment reel specifications.

Q: Can I use AD8668ARZ in applications originally designed for TLV274CDG4 operating at 2.7 V supply?

A: No. The AD8668ARZ minimum supply voltage is 5 V. Applications requiring 2.7 V to 5 V operation must use TLV274CD. The AD8668ARZ is suitable only for applications with 5 V or higher supply voltage.

Q: Are the pin configurations identical across all substitute parts?

A: Yes. All substitute parts (TLV274CD, AD8668ARZ, AD8668ARZ-REEL, AD8668ARZ-REEL7) use the standard 14-SOIC pinout with identical pin assignments. Direct PCB footprint compatibility is confirmed.

Q: Which substitute offers the best performance upgrade?

A: The AD8668 series (all variants) provides performance enhancement with higher slew rate, increased bandwidth, lower input bias current, and significantly higher output drive capability. Selection between AD8668ARZ and tape & reel variants (AD8668ARZ-REEL, AD8668ARZ-REEL7) depends on assembly process requirements, not performance.