TLC271ACDR Equivalent & Substitute Parts

Part Overview

The TLC271ACDR is a general purpose operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This LinCMOS™ series device features a single amplifier circuit with a gain bandwidth product of 2.2 MHz and operates across a 3V to 16V supply range. The TLC271ACDR is designated as Last Time Buy, indicating discontinued production status. Identifying equivalent and substitute parts is necessary to ensure continued design support and procurement availability for new applications and production requirements.

Substiute Parts

TLC271ACDR

Texas InstrumentsIn Stock: 1852TLC271ACDR Datasheet

Current PartRFQ

TLV9151IDBVR

Texas InstrumentsIn Stock: 2372TLV9151IDBVR Datasheet

MFR RecommendedRFQ

TLC27L1CS-13

Diodes IncorporatedIn Stock: 3636TLC27L1CS-13 Datasheet

MFR RecommendedRFQ

TLV271SN1T1G

onsemiIn Stock: 1839TLV271SN1T1G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC271ACDR is determined by compatibility across the following critical parameters:

Supply Voltage Range: All substitute parts must operate within the 3V to 16V supply span to ensure direct replacement capability in existing circuits.

Number of Circuits: Single-circuit configuration is mandatory for functional equivalence.

Package Compatibility: While the TLC271ACDR uses an 8-SOIC package, substitute parts may employ alternative surface mount packages (SOT-23-5, 5-TSOP) provided the electrical performance remains within acceptable tolerances for the application.

Output Type: The TLC271ACDR does not specify rail-to-rail output. Substitute parts with rail-to-rail capability provide enhanced performance characteristics while maintaining backward compatibility.

Compliance Requirements: All substitute parts must maintain ROHS3 compliance and MSL Level 1 rating to satisfy procurement and environmental standards.

The three identified substitute parts—TLV9151IDBVR, TLC27L1CS-13, and TLV271SN1T1G—each satisfy these core substitution criteria while offering distinct performance trade-offs in slew rate, bandwidth, and supply current characteristics.

Parameter Comparison

Engineering Selection Recommendations

TLV9151IDBVR (Texas Instruments): This substitute offers the highest performance envelope with 20V/µs slew rate and 4.5 MHz gain bandwidth product. The rail-to-rail output capability and extended operating temperature range (-40°C to 125°C) provide superior performance margins. Active product status ensures long-term availability. Package change from 8-SOIC to SOT-23-5 requires PCB layout modification. Recommended for applications requiring enhanced dynamic performance and extended temperature operation.

TLC27L1CS-13 (Diodes Incorporated): This substitute maintains identical 8-SOIC packaging and supply voltage range as the TLC271ACDR, minimizing PCB redesign requirements. Ultra-low supply current of 14µA suits battery-powered and low-power applications. Significantly reduced slew rate (0.04V/µs) and gain bandwidth product (110 kHz) restrict use to low-frequency signal conditioning. Active product status and ROHS3 compliance confirmed. Recommended for direct package replacement in low-frequency, power-constrained designs.

TLV271SN1T1G (onsemi): This substitute provides moderate performance improvement with 3 MHz gain bandwidth product and rail-to-rail output. Operating temperature range extends to -40°C to 105°C. Supply current of 490µA represents mid-range consumption. Package change to 5-TSOP requires PCB layout modification. Active product status ensures availability. Recommended for applications requiring improved bandwidth and extended temperature range with minimal performance overhead.

All three substitutes maintain ROHS3 compliance and MSL Level 1 rating, satisfying regulatory and procurement requirements equivalent to the TLC271ACDR.

Frequently Asked Questions (FAQ)

Q: Can TLV9151IDBVR directly replace TLC271ACDR without circuit modification?

A: Electrical substitution is feasible within the specified parameter ranges. However, the package change from 8-SOIC to SOT-23-5 requires PCB layout redesign. Pin configuration differs; verify pinout compatibility before implementation.

Q: What is the primary advantage of TLC27L1CS-13 as a substitute?

A: TLC27L1CS-13 maintains the 8-SOIC package footprint, eliminating PCB redesign. Supply current of 14µA is significantly lower than TLC271ACDR (950µA), making it suitable for battery-powered applications. Trade-off is substantially reduced bandwidth (110 kHz vs. 2.2 MHz).

Q: Is TLV271SN1T1G suitable for high-frequency applications?

A: TLV271SN1T1G provides 3 MHz gain bandwidth product, exceeding TLC271ACDR (2.2 MHz). This supports higher-frequency signal processing. However, the 5-TSOP package requires PCB layout modification compared to the original 8-SOIC.

Q: Do all substitutes support the full 3V to 16V supply range?

A: TLV9151IDBVR and TLV271SN1T1G support 2.7V minimum, extending lower-voltage capability. TLC27L1CS-13 maintains 3V minimum, matching TLC271ACDR. All three support 16V maximum.

Q: What is the impact of package changes on procurement and assembly?

A: Package changes require PCB layout modification, component placement updates, and assembly process validation. TLC27L1CS-13 eliminates this requirement through 8-SOIC compatibility. TLV9151IDBVR and TLV271SN1T1G necessitate design revision.

Q: Are all substitutes available in active production status?

A: Yes. TLV9151IDBVR, TLC27L1CS-13, and TLV271SN1T1G are all designated Active. TLC271ACDR is Last Time Buy, confirming the necessity for substitution planning.

Q: How do input offset voltage specifications compare?

A: TLV9151IDBVR provides superior offset voltage (125µV) compared to TLC271ACDR (900µV). TLV271SN1T1G offers 500µV. TLC27L1CS-13 exhibits 10mV offset, significantly higher, limiting precision applications.