TLV2221CDBVR Equivalent & Substitute Parts

Part Overview

The TLV2221CDBVR is a general purpose operational amplifier manufactured by Texas Instruments, designed for rail-to-rail applications in the LinCMOS™ series. This single-circuit op-amp is packaged in SOT-23-5 (SC-74A) surface mount configuration. The device operates across a 2.7 V to 10 V supply range with low input bias current of 1 pA and is ROHS3 compliant with unlimited moisture sensitivity rating.

The TLV2221CDBVR currently holds Last Time Buy status, indicating discontinued production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for ongoing production requirements.

Substiute Parts

TLV2221CDBVR

Texas InstrumentsIn Stock: 4784TLV2221CDBVR Datasheet

Current PartRFQ

TLV2221IDBVR

Texas InstrumentsIn Stock: 1000133TLV2221IDBVR Datasheet

MFR RecommendedRFQ

TSX631AILT

STMicroelectronicsIn Stock: 9134TSX631AILT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLV2221CDBVR are identified based on strict electrical and mechanical compatibility criteria. The following parameters define acceptable substitution:

Primary 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
• Input Bias Current: 1 pA
• RoHS Status: ROHS3 Compliant

Secondary Compatibility Criteria:

• Slew Rate: 0.18 V/µs or greater
• Gain Bandwidth Product: 510 kHz or greater
• Voltage - Input Offset: 610 µV or lower
• Current - Supply: 110 µA or lower
• Current - Output / Channel: 50 mA or greater
• Voltage - Supply Span: Must encompass minimum 2.7 V to maximum 10 V range

Two substitute parts meet these criteria with documented compatibility.

Parameter Comparison

Engineering Selection Recommendations

TLV2221IDBVR is the primary recommended substitute for TLV2221CDBVR. Both devices are manufactured by Texas Instruments within the LinCMOS™ series and share identical electrical specifications. The TLV2221IDBVR maintains the same slew rate (0.18 V/µs), gain bandwidth product (510 kHz), supply current (110 µA), and output current (50 mA). The extended operating temperature range (-40°C ~ 85°C) provides broader environmental coverage compared to the main part (0°C ~ 70°C). The TLV2221IDBVR holds Active product status with significantly higher inventory availability (1,000,100 pcs), ensuring long-term supply continuity. Both parts are ROHS3 compliant with identical moisture sensitivity ratings.

TSX631AILT is an alternative substitute manufactured by STMicroelectronics. This device maintains rail-to-rail output type, single-circuit configuration, and identical input bias current (1 pA). The TSX631AILT offers superior performance in specific parameters: lower input offset voltage (500 µV versus 610 µV), reduced supply current (45 µA versus 110 µA), and higher output current capability (92 mA versus 50 mA). The extended operating temperature range (-40°C ~ 125°C) and higher maximum supply voltage (16 V versus 10 V) provide additional design flexibility. However, the TSX631AILT exhibits lower slew rate (0.12 V/µs versus 0.18 V/µs) and reduced gain bandwidth product (200 kHz versus 510 kHz), which may impact high-frequency applications. The minimum supply voltage requirement (3.3 V) is higher than the main part (2.7 V), requiring verification for low-voltage designs. The TSX631AILT is Active status with adequate inventory (9,100 pcs) and is ROHS3 compliant.

Selection between TLV2221IDBVR and TSX631AILT depends on application-specific requirements: choose TLV2221IDBVR for direct electrical equivalence and identical frequency response; choose TSX631AILT for power-constrained applications requiring lower supply current and higher output drive capability.

Frequently Asked Questions (FAQ)

Q: Can TLV2221IDBVR directly replace TLV2221CDBVR without circuit modification?

A: Yes. The TLV2221IDBVR is electrically and mechanically identical to TLV2221CDBVR. Both devices share the same slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current, and supply voltage range. The SOT-23-5 package pinout is identical. No circuit modifications are required for direct substitution.

Q: What are the key differences between TLV2221IDBVR and TSX631AILT?

A: The primary differences are slew rate (0.18 V/µs versus 0.12 V/µs), gain bandwidth product (510 kHz versus 200 kHz), supply current (110 µA versus 45 µA), output current (50 mA versus 92 mA), and minimum supply voltage (2.7 V versus 3.3 V). The TSX631AILT is manufactured by STMicroelectronics rather than Texas Instruments. Applications requiring high-frequency response should use TLV2221IDBVR; applications prioritizing low power consumption may use TSX631AILT if frequency requirements are met.

Q: Is the TSX631AILT suitable for 2.7 V supply applications?

A: No. The TSX631AILT minimum supply voltage is 3.3 V, which exceeds the 2.7 V minimum requirement of the TLV2221CDBVR. Designs operating at 2.7 V must use TLV2221IDBVR or remain with TLV2221CDBVR. The TSX631AILT is suitable only for applications with minimum supply voltage of 3.3 V or higher.

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

A: Yes. Both TLV2221IDBVR and TSX631AILT are packaged in SC-74A, SOT-753 (SOT-23-5) surface mount configuration, identical to TLV2221CDBVR. PCB footprints and reflow soldering profiles are compatible across all three parts.

Q: What is the significance of the Last Time Buy status for TLV2221CDBVR?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of TLV2221CDBVR. Existing inventory is limited to 4,725 pcs. Designs currently using this part must transition to an active substitute to ensure long-term supply availability. TLV2221IDBVR (1,000,100 pcs available) is the recommended transition path.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. TLV2221CDBVR, TLV2221IDBVR, and TSX631AILT are all ROHS3 compliant with moisture sensitivity level 1 (unlimited). All parts meet current environmental and regulatory requirements.

Q: Which substitute is recommended for new designs?

A: TLV2221IDBVR is recommended for new designs. It provides direct electrical equivalence to TLV2221CDBVR with active product status, extensive inventory availability, and extended operating temperature range. TSX631AILT may be considered only if specific design requirements (lower power consumption, higher output current, extended temperature range to 125°C) justify acceptance of reduced frequency response characteristics.