TLV2731CDBVR Equivalent & Substitute Parts

Part Overview

The TLV2731CDBVR is a general-purpose operational amplifier manufactured by Texas Instruments, classified as a linear amplifier integrated circuit. This device features rail-to-rail output capability in a compact SOT-23-5 surface mount package. The TLV2731CDBVR is designated as Last Time Buy, indicating discontinued production status. Identification of equivalent and substitute parts is necessary to ensure design continuity and procurement availability for applications currently utilizing this component.

Substiute Parts

TLV2731CDBVR

Texas InstrumentsIn Stock: 4246TLV2731CDBVR Datasheet

Current PartRFQ

TLV2731IDBVR

Texas InstrumentsIn Stock: 4382TLV2731IDBVR Datasheet

MFR RecommendedRFQ

TS941AILT

STMicroelectronicsIn Stock: 29315TS941AILT Datasheet

MFR RecommendedRFQ

TS941ILT

STMicroelectronicsIn Stock: 17213TS941ILT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLV2731CDBVR is determined by electrical and mechanical parameter compatibility within the general-purpose operational amplifier category. The critical parameters governing substitution are:

Mechanical Compatibility: Package type (SOT-23-5), mounting type (surface mount), and pin configuration must match the SC-74A / SOT-753 standard.

Electrical Compatibility: Substitute parts must support rail-to-rail output operation, single-circuit configuration, and operate within the supply voltage range of 2.7 V to 10 V minimum.

Performance Parameters: Slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current capacity define performance-level substitution. Parts with equivalent or superior performance characteristics within the specified operating temperature range are classified as direct substitutes.

Compliance Requirements: All substitute parts must maintain ROHS3 compliance, MSL Level 1 rating, and EAR99 export classification to ensure regulatory and procurement consistency.

Two substitute categories are identified:

Category 1 - Direct Manufacturer Equivalent: TLV2731IDBVR (Texas Instruments) provides identical electrical specifications with extended operating temperature range and active product status.

Category 2 - Cross-Manufacturer Alternatives: TS941ILT and TS941AILT (STMicroelectronics) provide functional equivalence in package and basic operational characteristics, with performance trade-offs in specific parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute - TLV2731IDBVR:

The TLV2731IDBVR is the manufacturer-recommended direct equivalent for the TLV2731CDBVR. This part maintains identical electrical specifications including slew rate (1.6 V/µs), gain bandwidth product (2 MHz), supply current (850 µA), and output current capacity (50 mA). The TLV2731IDBVR is designated as an active product with extended operating temperature range (-40°C to 85°C), providing superior temperature coverage compared to the original part. Both parts share identical packaging (SOT-23-5), mounting type (surface mount), and compliance certifications (ROHS3, MSL Level 1). The TLV2731IDBVR is the preferred substitution path for new designs and production continuity.

Secondary Substitutes - TS941ILT and TS941AILT:

The TS941ILT and TS941AILT are cross-manufacturer alternatives manufactured by STMicroelectronics. These parts provide functional equivalence in package type (SOT-23-5), mounting configuration (surface mount), and rail-to-rail output capability. Both TS941 variants are active products with extended operating temperature range (-40°C to 85°C). However, these parts exhibit reduced performance in specific parameters: slew rate is significantly lower (0.0045 V/µs versus 1.6 V/µs), gain bandwidth product is reduced (10 kHz versus 2 MHz), supply current is substantially lower (1.2 µA versus 850 µA), and output current capacity is limited (5 mA versus 50 mA). The TS941AILT provides superior input offset voltage specification (5 mV) compared to TS941ILT (10 mV). These alternatives are suitable only for applications where reduced performance parameters are acceptable and where the lower power consumption and improved offset voltage characteristics provide design advantages.

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and EAR99 export classification, ensuring regulatory and procurement consistency with the original TLV2731CDBVR.

Frequently Asked Questions (FAQ)

Q: Can the TLV2731IDBVR be used as a direct replacement for the TLV2731CDBVR in existing designs?

A: Yes. The TLV2731IDBVR provides identical electrical specifications and package configuration. The extended operating temperature range (-40°C to 85°C) of the TLV2731IDBVR encompasses the original part's range (0°C to 70°C). Active product status ensures long-term availability. No circuit modifications are required.

Q: What are the key differences between the TLV2731CDBVR and the TS941 series?

A: The primary differences are performance-level parameters. The TLV2731CDBVR provides higher slew rate (1.6 V/µs), higher gain bandwidth product (2 MHz), higher supply current (850 µA), and higher output current capacity (50 mA). The TS941 series provides lower power consumption (1.2 µA) and improved input offset voltage characteristics. Package and mounting type are identical. Selection depends on application performance requirements.

Q: Are the TS941ILT and TS941AILT interchangeable with each other?

A: Both parts share identical package, mounting type, and most electrical specifications. The primary difference is input offset voltage: TS941AILT specifies 5 mV maximum, while TS941ILT specifies 10 mV maximum. Selection depends on application offset voltage tolerance requirements.

Q: Do all substitute parts maintain the same compliance certifications?

A: Yes. All substitute parts (TLV2731IDBVR, TS941ILT, TS941AILT) are ROHS3 compliant, MSL Level 1 rated, and classified as EAR99 for export purposes, matching the original TLV2731CDBVR compliance profile.

Q: What is the impact of the reduced slew rate in the TS941 series?

A: Slew rate determines the maximum rate of output voltage change. The TS941 series slew rate (0.0045 V/µs) is approximately 355 times lower than the TLV2731CDBVR (1.6 V/µs). This reduction limits the TS941 series to applications with low-frequency signal processing or where high-speed transient response is not required. High-frequency or fast-switching applications require the TLV2731CDBVR or TLV2731IDBVR.

Q: Can the reduced output current capacity of the TS941 series affect circuit design?

A: Yes. The TS941 series output current capacity (5 mA) is one-tenth that of the TLV2731CDBVR (50 mA). Applications requiring higher output current must use the TLV2731CDBVR or TLV2731IDBVR, or implement external buffering stages with the TS941 series.

Q: Is the packaging identical across all substitute parts?

A: Yes. All parts use SOT-23-5 package configuration (SC-74A, SOT-753 designation) with surface mount mounting type. Pin configuration and footprint are identical, enabling direct PCB substitution without layout modifications.