TLC271MDRG4 Equivalent & Substitute Parts

Part Overview

The TLC271MDRG4 is a general-purpose operational amplifier manufactured by Texas Instruments in the LinCMOS™ series. This device is a single-circuit, 8-SOIC surface-mount integrated circuit designed for linear amplification applications. The part carries a Last Time Buy product status, indicating that Texas Instruments has discontinued this specific packaging variant. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this component.

Substiute Parts

TLC271MDRG4

Texas InstrumentsIn Stock: 1084TLC271MDRG4 Datasheet

Current PartRFQ

TLC271MDR

Texas InstrumentsIn Stock: 15224TLC271MDR Datasheet

MFR RecommendedRFQ

TLV9151IDBVR

Texas InstrumentsIn Stock: 2372TLV9151IDBVR Datasheet

MFR RecommendedRFQ

TLC27L1CS-13

Diodes IncorporatedIn Stock: 3636TLC27L1CS-13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC271MDRG4 is determined by compatibility across the following critical parameters: amplifier type (general purpose), number of circuits (single), package form factor, mounting technology (surface mount), supply voltage range, operating temperature range, and regulatory compliance (RoHS3, REACH Unaffected).

The substitute parts identified fall into two distinct categories based on packaging and performance characteristics:

Category 1: Direct Package Equivalent (8-SOIC) Parts maintaining the 8-SOIC package form factor with identical or superior electrical performance characteristics.

Category 2: Alternative Package with Enhanced Performance (SOT-23-5) Parts offering improved electrical specifications but requiring different board layout accommodation due to alternative package geometry.

Substitution logic prioritizes parts that maintain the same supply voltage operating range (minimum 5V to maximum 16V), preserve single-circuit configuration, and sustain surface-mount compatibility. Parts with extended operating temperature ranges or enhanced performance metrics are identified as forward-compatible alternatives.

Parameter Comparison

Engineering Selection Recommendations

TLC271MDR (Texas Instruments) This part is the direct equivalent to TLC271MDRG4, maintaining identical electrical specifications, package geometry (8-SOIC), and operating parameters. Both parts carry Last Time Buy status from Texas Instruments. Selection of TLC271MDR provides pin-for-pin compatibility with no circuit redesign required. This part is suitable for immediate replacement in existing designs.

TLV9151IDBVR (Texas Instruments) This part offers enhanced performance characteristics including higher slew rate (20V/µs versus 5.3V/µs), greater gain bandwidth product (4.5MHz versus 2.2MHz), and improved output current capability (75mA versus 30mA). The TLV9151IDBVR maintains Active product status, ensuring long-term availability. However, this part utilizes SOT-23-5 packaging, requiring PCB layout modification. The lower minimum supply voltage (2.7V) extends application flexibility. This part is suitable for new designs or redesigns where enhanced performance is beneficial.

TLC27L1CS-13 (Diodes Incorporated) This part maintains 8-SOIC package compatibility and identical input bias current (0.7pA). However, it exhibits significantly reduced performance metrics: slew rate of 0.04V/µs and gain bandwidth product of 110kHz. Operating temperature range is restricted to 0°C to 70°C, limiting use in extended temperature applications. This part carries Active product status. Selection is appropriate only for applications with relaxed bandwidth and slew rate requirements.

Frequently Asked Questions (FAQ)

Q: Can TLC271MDR be used as a direct replacement for TLC271MDRG4? A: Yes. TLC271MDR is electrically and mechanically identical to TLC271MDRG4. Both parts share the same base product number (TLC271), identical electrical specifications, and 8-SOIC package geometry. No circuit modifications are required.

Q: What are the key differences between TLC271MDRG4 and TLV9151IDBVR? A: The primary differences are package form factor and performance specifications. TLV9151IDBVR uses SOT-23-5 packaging versus 8-SOIC, requiring PCB layout changes. TLV9151IDBVR provides superior slew rate (20V/µs), gain bandwidth product (4.5MHz), and output current (75mA). TLV9151IDBVR operates at lower minimum supply voltage (2.7V) and maintains Active product status. Operating temperature range is narrower (-40°C to 125°C versus -55°C to 125°C).

Q: Is TLC27L1CS-13 suitable for high-speed applications? A: No. TLC27L1CS-13 exhibits significantly reduced bandwidth (110kHz gain bandwidth product) and slew rate (0.04V/µs) compared to TLC271MDRG4 (2.2MHz and 5.3V/µs respectively). This part is suitable only for low-frequency, low-speed applications.

Q: What is the impact of package change when using TLV9151IDBVR? A: TLV9151IDBVR uses SOT-23-5 packaging instead of 8-SOIC. This requires modification of PCB footprint, trace routing, and component placement. Pin configuration differs, necessitating schematic review. However, electrical functionality remains compatible for applications within the specified operating parameters.

Q: Are all substitute parts RoHS3 compliant? A: Yes. TLC271MDR, TLV9151IDBVR, and TLC27L1CS-13 are all ROHS3 Compliant. All parts are REACH Unaffected and carry identical moisture sensitivity level (MSL 1 - Unlimited).

Q: Which substitute part offers the longest operating temperature range? A: TLC271MDRG4 and TLC271MDR both operate across -55°C to 125°C. TLV9151IDBVR operates -40°C to 125°C. TLC27L1CS-13 is limited to 0°C to 70°C. For extended low-temperature applications, TLC271MDR is the appropriate selection.

Q: What is the supply current difference between these parts? A: TLC271MDRG4 and TLC271MDR draw 950µA. TLV9151IDBVR draws 560µA, offering reduced power consumption. TLC27L1CS-13 draws only 14µA, providing ultra-low power operation suitable for battery-powered applications with relaxed performance requirements.