TLV2231CDBVRG4 Equivalent & Substitute Parts

Part Overview

The TLV2231CDBVRG4 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 voltage range. The part is currently classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and ongoing production requirements.

Substiute Parts

TLV2231CDBVRG4

Texas InstrumentsIn Stock: 4267TLV2231CDBVRG4 Datasheet

Current PartRFQ

TLV2231IDBVR

Texas InstrumentsIn Stock: 3172TLV2231IDBVR Datasheet

UpgradeRFQ

TS9511ILT

STMicroelectronicsIn Stock: 5996TS9511ILT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLV2231CDBVRG4 is determined by electrical and mechanical compatibility across the following critical parameters:

Mechanical Compatibility: All substitute parts must use identical packaging (SOT-23-5 / SC-74A) and surface mount mounting type to ensure direct board-level replacement without layout modifications.

Electrical Compatibility: Substitute parts must maintain functional equivalence in the following areas:

• Single-circuit general-purpose amplifier topology
• Rail-to-rail output capability
• Supply voltage range compatibility (minimum 2.7V, maximum 10V or higher)
• Input bias current characteristics suitable for high-impedance applications
• Output current capability of at least 50 mA per channel
• Gain-bandwidth product and slew rate performance within application tolerance

Compliance Requirements: All substitute parts must maintain RoHS3 compliance and MSL Level 1 rating to ensure environmental and manufacturing process compatibility.

Parameter Comparison

Engineering Selection Recommendations

TLV2231IDBVR (Texas Instruments - Recommended Upgrade)

The TLV2231IDBVR is the direct active equivalent of the obsolete TLV2231CDBVRG4. This part maintains identical electrical specifications including slew rate (1.6 V/µs), gain-bandwidth product (2 MHz), input bias current (1 pA), and output current capability (50 mA). The primary differences are product status (active versus obsolete) and extended operating temperature range (-40°C to 85°C versus 0°C to 70°C). Both parts are ROHS3 compliant with MSL Level 1 rating. The TLV2231IDBVR is supplied in Tape & Reel packaging and is the preferred substitution path for designs requiring direct replacement with identical performance characteristics.

TS9511ILT (STMicroelectronics - Alternative Substitute)

The TS9511ILT is an active general-purpose rail-to-rail operational amplifier from STMicroelectronics suitable for applications where the TLV2231CDBVRG4 specifications can be accommodated with minor performance trade-offs. This device offers higher gain-bandwidth product (3 MHz versus 2 MHz) and extended maximum supply voltage (12 V versus 10 V). However, the TS9511ILT exhibits reduced output current capability (20 mA versus 50 mA) and higher input bias current (30 nA versus 1 pA). The TS9511ILT is ROHS3 compliant with MSL Level 1 rating and operates across an extended temperature range (-40°C to 125°C). This part is suitable for applications where output current requirements do not exceed 20 mA and where higher input bias current is acceptable.

Frequently Asked Questions (FAQ)

Q: Can the TLV2231IDBVR be used as a direct replacement for the TLV2231CDBVRG4?

A: Yes. The TLV2231IDBVR is electrically and mechanically equivalent to the TLV2231CDBVRG4. Both parts share identical electrical specifications (slew rate, gain-bandwidth product, input bias current, output current, and supply voltage range) and use the same SOT-23-5 package. The primary difference is product status: TLV2231IDBVR is active while TLV2231CDBVRG4 is obsolete. The TLV2231IDBVR also provides an extended operating temperature range (-40°C to 85°C).

Q: What are the key differences between the TLV2231IDBVR and TS9511ILT?

A: Both parts are active general-purpose rail-to-rail operational amplifiers in SOT-23-5 packaging. The TLV2231IDBVR maintains identical electrical performance to the original TLV2231CDBVRG4 with 1.6 V/µs slew rate and 50 mA output current. The TS9511ILT offers higher gain-bandwidth product (3 MHz) and extended maximum supply voltage (12 V) but provides reduced output current (20 mA) and higher input bias current (30 nA). Selection between these parts depends on application requirements for output current and input bias current characteristics.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The TLV2231IDBVR and TS9511ILT are both ROHS3 compliant with MSL Level 1 rating, matching the compliance profile of the original TLV2231CDBVRG4.

Q: Can the TS9511ILT be used in applications requiring 50 mA output current?

A: No. The TS9511ILT is rated for 20 mA maximum output current per channel, which is insufficient for applications requiring the 50 mA output capability of the TLV2231CDBVRG4. The TLV2231IDBVR maintains the 50 mA output current specification and is the appropriate choice for such applications.

Q: What is the impact of the higher input bias current in the TS9511ILT?

A: The TS9511ILT exhibits input bias current of 30 nA compared to 1 pA in the TLV2231CDBVRG4 and TLV2231IDBVR. This 30,000-fold increase in input bias current may affect circuit performance in high-impedance applications, precision instrumentation, or designs with large source impedances. Applications with impedance sources below 1 MΩ typically experience negligible impact.

Q: Are there packaging differences between the substitute parts?

A: No. All three parts (TLV2231CDBVRG4, TLV2231IDBVR, and TS9511ILT) use identical SOT-23-5 (SC-74A) surface mount packaging. Direct board-level substitution is possible without layout modifications.

Q: What is the operating temperature range difference between the main part and substitutes?

A: The TLV2231CDBVRG4 operates from 0°C to 70°C. The TLV2231IDBVR extends this range to -40°C to 85°C. The TS9511ILT provides the widest range at -40°C to 125°C. Selection depends on application environmental requirements.