TLV274IDG4 Equivalent & Substitute Parts

Part Overview

The TLV274IDG4 is a general-purpose operational amplifier featuring four independent circuits in a 14-SOIC surface-mount package. This device delivers rail-to-rail output capability with a 3 MHz gain-bandwidth product and operates across a 2.7 V to 16 V supply range. The TLV274IDG4 is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility while meeting current manufacturing and supply chain standards.

Key Parameters

Parameter	Value
Amplifier Type	General Purpose
Number of Circuits	4
Output Type	Rail-to-Rail
Slew Rate	2.6 V/µs
Gain Bandwidth Product	3 MHz
Current - Input Bias	1 pA
Voltage - Input Offset	500 µV
Current - Supply	550 µA (x4 Channels)
Current - Output / Channel	8 mA
Voltage - Supply Span (Min)	2.7 V
Voltage - Supply Span (Max)	16 V
Operating Temperature	-40°C ~ 125°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the TLV274IDG4 is determined by the following critical parameters:

Primary Compatibility Criteria:

Four independent operational amplifier circuits
Rail-to-rail output configuration
14-SOIC surface-mount package with 0.154" (3.90mm) width
Operating temperature range of -40°C to 125°C
ROHS3 compliance and MSL Level 1 rating

Substitution Logic:

The TLV274ID represents a direct functional equivalent manufactured by Texas Instruments. This part maintains identical electrical specifications and package configuration while offering active product status and improved supply availability.

The AD8668ARZ, AD8668ARZ-REEL, and AD8668ARZ-REEL7 are manufactured by Analog Devices Inc. and provide functional substitution with enhanced electrical performance characteristics. These parts exceed the minimum parameter requirements of the TLV274IDG4 across multiple 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 variants differ in packaging format (tube versus tape & reel) but maintain identical electrical performance and the same 14-SOIC package footprint.

All substitute parts maintain compliance with ROHS3 standards, MSL Level 1 rating, and the specified operating temperature range.

Parameter Comparison

Parameter	TLV274IDG4	TLV274ID	AD8668ARZ	AD8668ARZ-REEL	AD8668ARZ-REEL7
Manufacturer	Texas Instruments	Texas Instruments	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.
Product Status	Obsolete	Active	Active	Active	Active
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose
Number of Circuits	4	4	4	4	4
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Slew Rate	2.6 V/µs	2.6 V/µs	3.5 V/µs	3.5 V/µs	3.5 V/µs
Gain Bandwidth Product	3 MHz	3 MHz	4 MHz	4 MHz	4 MHz
Current - Input Bias	1 pA	1 pA	0.2 pA	0.2 pA	0.2 pA
Voltage - Input Offset	500 µV	500 µV	600 µV	600 µV	600 µV
Current - Supply	550 µA (x4)	550 µA (x4)	1.15 mA (x4)	1.15 mA (x4)	1.15 mA (x4)
Current - Output / Channel	8 mA	8 mA	140 mA	140 mA	140 mA
Voltage - Supply Span (Min)	2.7 V	2.7 V	5 V	5 V	5 V
Voltage - Supply Span (Max)	16 V	16 V	16 V	16 V	16 V
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Packaging Format	Digi-Reel	Tube	Tube	Tape & Reel (TR)	Tape & Reel (TR)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

TLV274ID (Texas Instruments)

The TLV274ID is the primary recommended substitute for the obsolete TLV274IDG4. This part maintains identical electrical specifications and is manufactured by the same supplier, ensuring design continuity. The TLV274ID holds active product status with established supply chains and is available in tube packaging. Selection of this part eliminates design modifications and maintains full compatibility with existing PCB layouts and circuit implementations.

AD8668ARZ (Analog Devices Inc., Tube Packaging)

The AD8668ARZ provides functional substitution with enhanced performance characteristics. This part delivers superior slew rate, higher gain-bandwidth product, and significantly increased output current capability. The AD8668ARZ is suitable for applications requiring higher performance margins or where the enhanced specifications provide system-level benefits. This part is available in tube packaging and maintains active product status.

AD8668ARZ-REEL and AD8668ARZ-REEL7 (Analog Devices Inc., Tape & Reel Packaging)

The AD8668ARZ-REEL and AD8668ARZ-REEL7 are identical to the AD8668ARZ in electrical performance but are supplied in tape & reel format for automated assembly operations. The AD8668ARZ-REEL7 variant offers significantly higher inventory availability. Selection of tape & reel packaging is appropriate for high-volume production environments requiring automated component handling.

All substitute parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing processes and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can the TLV274ID be used as a direct replacement for the TLV274IDG4?

A: Yes. The TLV274ID is a direct functional equivalent with identical electrical specifications, package configuration, and operating characteristics. The primary difference is product status: TLV274ID is active while TLV274IDG4 is obsolete. No circuit modifications are required.

Q: What are the key differences between the TLV274ID and AD8668ARZ?

A: Both parts maintain the same 14-SOIC package footprint and four-circuit configuration. The AD8668ARZ offers enhanced performance with 3.5 V/µs slew rate (versus 2.6 V/µs), 4 MHz gain-bandwidth product (versus 3 MHz), lower input bias current (0.2 pA versus 1 pA), and 140 mA output current per channel (versus 8 mA). The AD8668ARZ requires a minimum 5 V supply, while the TLV274ID operates from 2.7 V. Both parts support the full -40°C to 125°C temperature range.

Q: Are the AD8668ARZ, AD8668ARZ-REEL, and AD8668ARZ-REEL7 electrically identical?

A: Yes. These three parts are electrically identical. The differences are packaging format only: AD8668ARZ is supplied in tube packaging, while AD8668ARZ-REEL and AD8668ARZ-REEL7 are supplied in tape & reel format for automated assembly. Selection depends on production volume and assembly equipment requirements.

Q: What is the significance of the AD8668ARZ-REEL7 designation?

A: The AD8668ARZ-REEL7 is a tape & reel variant with significantly higher inventory availability (61,000 pieces) compared to AD8668ARZ-REEL (1,900 pieces). Both parts are electrically and mechanically identical. The REEL7 designation indicates a specific reel configuration optimized for high-volume supply.

Q: Can I use the AD8668ARZ in a circuit designed for the TLV274IDG4 without modifications?

A: The AD8668ARZ is pin-compatible and functionally compatible with the TLV274IDG4 in most applications. However, the AD8668ARZ requires a minimum 5 V supply voltage, while the TLV274IDG4 operates from 2.7 V. If your circuit operates below 5 V, the AD8668ARZ is not suitable. Additionally, the AD8668ARZ exhibits higher supply current (1.15 mA versus 550 µA), which may impact power budget calculations in battery-powered applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The TLV274ID, AD8668ARZ, AD8668ARZ-REEL, and AD8668ARZ-REEL7 are all ROHS3 compliant with MSL Level 1 rating, meeting current environmental and manufacturing standards.

Q: Which substitute part should I select for high-volume production?

A: For high-volume automated assembly, the AD8668ARZ-REEL7 is recommended due to its tape & reel packaging format and superior inventory availability. If Texas Instruments supply chain preference is required, the TLV274ID in tube packaging is the appropriate selection.

Q: What is the package footprint compatibility between these parts?

A: All substitute parts use the 14-SOIC package with 0.154" (3.90mm) width. The footprint is identical across all parts, ensuring direct PCB compatibility without layout modifications.

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