TLC271BCDG4 Equivalent & Substitute Parts

Part Overview

The TLC271BCDG4 is a general purpose operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This LinCMOS™ series device is designed for low-power analog signal processing applications requiring single-circuit amplification. The TLC271BCDG4 is currently discontinued at DiGi Electronics, necessitating identification of equivalent substitute components that maintain electrical and mechanical compatibility for ongoing production and maintenance requirements.

Substiute Parts

TLC271BCDG4

Texas InstrumentsIn Stock: 888TLC271BCDG4 Datasheet

Current PartRFQ

TLC271BCD

Texas InstrumentsIn Stock: 2955TLC271BCD Datasheet

MFR RecommendedRFQ

TLC27L1CS-13

Diodes IncorporatedIn Stock: 3636TLC27L1CS-13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLC271BCDG4 are identified based on strict electrical and mechanical parameter compatibility. The substitution logic is governed by the following criteria:

Primary Compatibility Parameters:

• Package type: 8-SOIC surface mount configuration
• Supply voltage range: 3 V to 16 V
• Operating temperature range: 0°C to 70°C
• Number of circuits: 1
• Output current capability: 30 mA per channel
• Input bias current: 0.7 pA
• RoHS3 compliance and MSL Level 1 rating

Substitute Parts Identified:

1. TLC271BCD (Texas Instruments) — Manufacturer recommended substitute with identical electrical specifications and 8-SOIC packaging. Product status is Last Time Buy.

2. TLC27L1CS-13 (Diodes Incorporated) — Alternative substitute with compatible package, supply voltage range, and operating temperature. This part operates as a CMOS amplifier variant with different performance characteristics in slew rate and gain bandwidth product.

Parameter Comparison

Engineering Selection Recommendations

TLC271BCD (Primary Substitute): The TLC271BCD is the manufacturer-recommended substitute for the discontinued TLC271BCDG4. Both parts share identical electrical specifications, including slew rate (5.3 V/µs), gain bandwidth product (2.2 MHz), and supply current (950 µA). The TLC271BCD maintains full compatibility with existing circuit designs and PCB layouts. Although marked as Last Time Buy, this part provides the most direct replacement path with zero performance deviation. Both parts are ROHS3 compliant with MSL Level 1 rating.

TLC27L1CS-13 (Alternative Substitute): The TLC27L1CS-13, manufactured by Diodes Incorporated, is an alternative substitute suitable for applications where lower power consumption is beneficial. This CMOS variant operates at significantly reduced supply current (14 µA versus 950 µA) and offers superior input offset voltage specification (10 µV versus 390 µV). However, the TLC27L1CS-13 exhibits substantially lower slew rate (0.04 V/µs) and gain bandwidth product (110 kHz), making it suitable only for low-frequency signal processing applications. The part maintains compatible package geometry (8-SOIC), supply voltage range (3 V to 16 V), and operating temperature range (0°C to 70°C). This part is currently in active production status. ROHS3 compliance and MSL Level 1 rating are maintained.

Selection Criteria:

• For direct replacement with identical performance: select TLC271BCD
• For low-power applications with reduced bandwidth requirements: select TLC27L1CS-13
• All substitutes maintain surface mount 8-SOIC packaging and regulatory compliance

Frequently Asked Questions (FAQ)

Q: Can TLC271BCD be used as a direct replacement for TLC271BCDG4?

A: Yes. The TLC271BCD is electrically and mechanically identical to the TLC271BCDG4. Both parts share the same slew rate (5.3 V/µs), gain bandwidth product (2.2 MHz), supply current (950 µA), and 8-SOIC package configuration. No circuit modifications are required.

Q: What are the key differences between TLC271BCD and TLC27L1CS-13?

A: The primary differences are slew rate, gain bandwidth product, and supply current. TLC271BCD operates at 5.3 V/µs slew rate and 2.2 MHz bandwidth with 950 µA supply current. TLC27L1CS-13 operates at 0.04 V/µs slew rate and 110 kHz bandwidth with only 14 µA supply current. Both maintain identical supply voltage range (3 V to 16 V) and output current capability (30 mA). The TLC27L1CS-13 is suitable only for low-frequency applications.

Q: Are all substitute parts RoHS compliant?

A: Yes. TLC271BCD and TLC27L1CS-13 are both ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). All parts meet current environmental and regulatory requirements.

Q: What is the difference between 8-SOIC and 8-SO packaging?

A: Both designations refer to the same 8-pin small outline integrated circuit package with 0.154" (3.90mm) width. The terms are used interchangeably in industry documentation. All substitute parts are mechanically compatible with existing PCB layouts designed for 8-SOIC packages.

Q: Which substitute should be selected for new designs?

A: For new designs requiring general-purpose amplification with standard bandwidth and slew rate performance, select TLC271BCD. For applications prioritizing low power consumption in low-frequency signal processing, select TLC27L1CS-13. Both parts are ROHS3 compliant and suitable for production use.

Q: Is the TLC271BCD still available for procurement?

A: TLC271BCD is marked as Last Time Buy status, indicating limited availability. Current inventory is 2,900 pieces. For long-term production requirements, evaluate TLC27L1CS-13 as an alternative, which maintains active production status.