TLV2231CDBVR Equivalent & Substitute Parts

Part Overview

The TLV2231CDBVR is a general-purpose operational amplifier manufactured by Texas Instruments, designed for rail-to-rail applications in the LinCMOS™ series. This device is packaged in SOT-23-5 (SC-74A) surface mount configuration and operates across a 2.7V to 10V supply range. The part is currently in Last Time Buy status, indicating discontinued production with limited inventory availability. Identification of equivalent and substitute parts is necessary to ensure design continuity and long-term component sourcing for applications requiring this amplifier topology.

Substiute Parts

TLV2231CDBVR

Texas InstrumentsIn Stock: 1435TLV2231CDBVR Datasheet

Current PartRFQ

TLV2231IDBVR

Texas InstrumentsIn Stock: 3172TLV2231IDBVR Datasheet

MFR RecommendedRFQ

TS9511ILT

STMicroelectronicsIn Stock: 5996TS9511ILT Datasheet

MFR RecommendedRFQ

TSX631AILT

STMicroelectronicsIn Stock: 9134TSX631AILT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLV2231CDBVR is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 1
• Output Type: Rail-to-Rail
• Package / Case: SC-74A, SOT-753 (SOT-23-5)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Operational Parameter Ranges:

• Voltage - Supply Span: Minimum 2.7V, Maximum 10V (or higher)
• Current - Supply: 850µA nominal
• Slew Rate: 1.6V/µs nominal
• Gain Bandwidth Product: 2MHz nominal

All substitute parts listed maintain identical package specifications and compliance certifications. Variations in operating temperature range, slew rate, gain bandwidth product, and supply current are documented to enable selection based on specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

TLV2231IDBVR (Texas Instruments)

The TLV2231IDBVR is the direct functional equivalent of the TLV2231CDBVR, sharing identical electrical specifications and LinCMOS™ series design. This part maintains the same slew rate (1.6V/µs), gain bandwidth product (2MHz), and output current (50mA). The primary distinction is product status: TLV2231IDBVR is Active with extended operating temperature range (-40°C to 85°C) compared to the Last Time Buy TLV2231CDBVR (0°C to 70°C). Packaging differs only in format (Tape & Reel versus Cut Tape), with identical SOT-23-5 pinout. This part is recommended as the primary replacement for new designs and ongoing production requiring Texas Instruments sourcing.

TS9511ILT (STMicroelectronics)

The TS9511ILT provides functional substitution with enhanced performance characteristics. This part maintains rail-to-rail output, SOT-23-5 packaging, and 2.7V minimum supply voltage. Performance improvements include higher gain bandwidth product (3MHz versus 2MHz) and extended operating temperature range (-40°C to 125°C). Trade-offs include reduced output current per channel (20mA versus 50mA) and higher input bias current (30nA versus 1pA). Supply voltage maximum extends to 12V. This part is suitable for applications where higher bandwidth and extended temperature operation are required, provided output current requirements do not exceed 20mA.

TSX631AILT (STMicroelectronics)

The TSX631AILT offers substitution for low-power applications with significantly reduced supply current (45µA versus 850µA). This part maintains identical input bias current (1pA) and improves input offset voltage (500µV versus 710µV). Trade-offs include substantially reduced slew rate (0.12V/µs versus 1.6V/µs) and gain bandwidth product (200kHz versus 2MHz), making this part unsuitable for high-speed signal processing. Minimum supply voltage increases to 3.3V. Output current capability increases to 92mA. This part is applicable only to low-frequency, power-constrained applications where bandwidth requirements are below 200kHz.

All substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited), and REACH Unaffected status, ensuring regulatory compatibility with the original TLV2231CDBVR.

Frequently Asked Questions (FAQ)

Q: Can TLV2231IDBVR directly replace TLV2231CDBVR in existing designs?

A: Yes. TLV2231IDBVR is electrically and functionally identical to TLV2231CDBVR. Both devices share the same slew rate (1.6V/µs), gain bandwidth product (2MHz), input bias current (1pA), and output current (50mA). The primary difference is product status and operating temperature range. TLV2231IDBVR is Active with -40°C to 85°C operation, while TLV2231CDBVR is Last Time Buy with 0°C to 70°C operation. Pinout and SOT-23-5 package are identical. No circuit modifications are required.

Q: What are the key differences between TS9511ILT and TLV2231CDBVR?

A: TS9511ILT differs in three primary areas: (1) Gain Bandwidth Product is higher at 3MHz versus 2MHz, enabling faster signal processing; (2) Operating temperature range extends to -40°C to 125°C versus 0°C to 70°C; (3) Output current per channel is reduced to 20mA versus 50mA. Input bias current is higher at 30nA versus 1pA. Supply voltage maximum extends to 12V. These differences make TS9511ILT suitable for higher-speed applications with extended temperature requirements, provided output current does not exceed 20mA.

Q: Is TSX631AILT suitable as a direct replacement for TLV2231CDBVR?

A: TSX631AILT is not a direct replacement. While both maintain SOT-23-5 packaging and rail-to-rail output, TSX631AILT is designed for low-power applications with 45µA supply current versus 850µA. This part has severely reduced bandwidth (200kHz versus 2MHz) and slew rate (0.12V/µs versus 1.6V/µs), making it unsuitable for applications requiring signal frequencies above 200kHz. Minimum supply voltage is 3.3V versus 2.7V. TSX631AILT is applicable only to DC or very low-frequency signal conditioning where power consumption is critical.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts use identical SOT-23-5 (SC-74A, SOT-753) surface mount packaging with the same pinout. Packaging format differs only in tape configuration: TLV2231CDBVR is supplied in Cut Tape (CT) & Digi-Reel®, while TLV2231IDBVR, TS9511ILT, and TSX631AILT are supplied in Tape & Reel (TR). PCB footprint and soldering requirements are identical across all parts.

Q: Do all substitute parts meet the same compliance standards as TLV2231CDBVR?

A: Yes. All substitute parts (TLV2231IDBVR, TS9511ILT, TSX631AILT) are ROHS3 Compliant, have Moisture Sensitivity Level 1 (Unlimited), and REACH Unaffected status. All parts carry ECCN EAR99 and HTSUS 8542.33.0001 classifications. Regulatory compliance is maintained across all substitutions.

Q: What supply voltage range must be maintained for substitution compatibility?

A: The original TLV2231CDBVR operates from 2.7V to 10V. TLV2231IDBVR maintains this range. TS9511ILT extends maximum to 12V but maintains 2.7V minimum. TSX631AILT requires minimum 3.3V and extends to 16V maximum. For designs operating at 2.7V to 10V, all three substitutes are compatible. For designs below 3.3V, only TLV2231IDBVR or TS9511ILT are suitable. For designs above 10V, TS9511ILT or TSX631AILT are required.

Q: Which substitute part is recommended for new product designs?

A: TLV2231IDBVR is recommended for new designs requiring direct functional equivalence to TLV2231CDBVR. This part is Active (not Last Time Buy), maintains identical electrical performance, and offers extended operating temperature range (-40°C to 85°C). TS9511ILT is recommended when higher bandwidth (3MHz) and extended temperature operation (-40°C to 125°C) are required, provided output current does not exceed 20mA. TSX631AILT is recommended only for low-power, low-frequency applications where supply current minimization is critical.