TLC271IDR Equivalent & Substitute Parts

Part Overview

The TLC271IDR is a general-purpose operational amplifier manufactured by Texas Instruments, packaged in 8-SOIC surface mount configuration. This LinCMOS™ series device operates across a 4V to 16V supply range with a gain-bandwidth product of 2.2 MHz and slew rate of 5.3V/µs. The TLC271IDR holds Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain component availability for new production runs and legacy system support.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	-
Number of Circuits	1	-
Slew Rate	5.3	V/µs
Gain Bandwidth Product	2.2	MHz
Current - Input Bias	0.7	pA
Voltage - Input Offset	1.1	mV
Current - Supply	950	µA
Current - Output / Channel	30	mA
Voltage - Supply Span (Min)	4	V
Voltage - Supply Span (Max)	16	V
Operating Temperature	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	-
Mounting Type	Surface Mount	-

Substitute Part Grouping Explanation

Substitution eligibility for the TLC271IDR is determined by the following critical parameters: amplifier type classification, number of circuits, supply voltage range compatibility, operating temperature range, package form factor, and mounting technology. All substitute parts must maintain surface mount configuration and support the 4V to 16V supply range minimum requirement.

The substitute parts are grouped into two categories based on functional and packaging characteristics:

Category 1: Package-Compatible Substitutes (8-SOIC) Parts TLC271IS-13 and TLC27L1CS-13 maintain identical 8-SOIC packaging, enabling direct PCB layout compatibility. These parts are sourced from Diodes Incorporated and retain the same mechanical footprint as the original TLC271IDR.

Category 2: Enhanced Performance Substitute (SOT-23-5) Part TLV9151IDBVR offers improved electrical performance characteristics including higher slew rate, increased gain-bandwidth product, and rail-to-rail output capability. This part requires PCB layout modification due to different package geometry (SOT-23-5 versus 8-SOIC).

Parameter Comparison

Parameter	TLC271IDR (Main)	TLC271IS-13	TLC27L1CS-13	TLV9151IDBVR
Manufacturer	Texas Instruments	Diodes Incorporated	Diodes Incorporated	Texas Instruments
Amplifier Type	General Purpose	CMOS	CMOS	General Purpose
Number of Circuits	1	1	1	1
Slew Rate (V/µs)	5.3	4.6	0.04	20
Gain Bandwidth Product (MHz)	2.2	2.2	0.11	4.5
Current - Input Bias (pA)	0.7	0.6	0.7	10
Voltage - Input Offset (mV)	1.1	1.1	10	0.125
Current - Supply (µA)	950	675	14	560
Current - Output / Channel (mA)	30	30	30	75
Voltage - Supply Span (Min) (V)	4	3	3	2.7
Voltage - Supply Span (Max) (V)	16	16	16	16
Operating Temperature (°C)	-40 to 85	-40 to 85	0 to 70	-40 to 125
Package / Case	8-SOIC	8-SOIC	8-SOIC	SOT-23-5
Product Status	Last Time Buy	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct PCB Replacement (No Layout Modification Required):

TLC271IS-13 from Diodes Incorporated is the primary substitute for applications requiring identical 8-SOIC packaging. This part maintains active product status and ROHS3 compliance. The electrical characteristics remain within acceptable tolerance of the original TLC271IDR, with matching gain-bandwidth product (2.2 MHz) and slew rate (4.6V/µs). Supply current is reduced to 675µA compared to 950µA in the original part. Operating temperature range matches the TLC271IDR specification (-40°C to 85°C).

TLC27L1CS-13 from Diodes Incorporated is suitable only for applications where low power consumption is prioritized over bandwidth performance. This part operates at 14µA supply current but exhibits significantly reduced slew rate (0.04V/µs) and gain-bandwidth product (110 kHz). Operating temperature range is limited to 0°C to 70°C. This substitute is appropriate for battery-powered or ultra-low-power applications only.

For Enhanced Performance (PCB Layout Modification Required):

TLV9151IDBVR from Texas Instruments offers superior electrical performance with 20V/µs slew rate and 4.5 MHz gain-bandwidth product. This part features rail-to-rail output capability and extended operating temperature range (-40°C to 125°C). The SOT-23-5 package requires PCB redesign but provides improved performance metrics. This substitute is applicable when design specifications can accommodate package geometry changes and when enhanced performance characteristics provide system-level benefits.

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, ensuring regulatory and environmental compatibility with the original TLC271IDR.

Frequently Asked Questions (FAQ)

Q: Can TLC271IS-13 be used as a direct replacement for TLC271IDR without PCB modification?

A: Yes. TLC271IS-13 maintains identical 8-SOIC package geometry and pinout compatibility. Both parts operate across -40°C to 85°C temperature range and support 4V to 16V supply voltage. Electrical performance is comparable, with TLC271IS-13 offering slightly lower supply current (675µA versus 950µA).

Q: What are the key differences between TLC271IS-13 and TLC27L1CS-13?

A: Both parts use 8-SOIC packaging and are sourced from Diodes Incorporated. TLC271IS-13 maintains 2.2 MHz gain-bandwidth product and 4.6V/µs slew rate, matching the original TLC271IDR performance. TLC27L1CS-13 is optimized for ultra-low power operation at 14µA supply current but sacrifices bandwidth (110 kHz) and slew rate (0.04V/µs). TLC27L1CS-13 also has a narrower operating temperature range (0°C to 70°C) and higher input offset voltage (10 mV).

Q: Why does TLV9151IDBVR require PCB layout modification?

A: TLV9151IDBVR uses SOT-23-5 package geometry, which differs from the 8-SOIC package used by TLC271IDR. SOT-23-5 has different pin spacing, lead configuration, and footprint dimensions. PCB trace routing, component placement, and land pattern design must be updated to accommodate this package change.

Q: Is TLV9151IDBVR compatible with all applications designed for TLC271IDR?

A: TLV9151IDBVR is electrically compatible within the specified supply voltage range (2.7V to 16V) and operating temperature range (-40°C to 125°C). However, the rail-to-rail output characteristic and enhanced performance parameters may alter circuit behavior in applications with specific output swing requirements. Circuit validation is necessary for applications with tight output voltage specifications.

Q: What is the inventory status of these substitute parts?

A: TLC271IS-13 has 28,470 pieces in stock. TLC27L1CS-13 has 3,600 pieces in stock. TLV9151IDBVR has 2,339 pieces in stock. All parts are listed as new original stock from active product lines.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. TLC271IS-13, TLC27L1CS-13, and TLV9151IDBVR are all ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating and REACH unaffected status, matching the regulatory compliance of the original TLC271IDR.

Q: Which substitute part should be selected for a new design?

A: For new designs, TLC271IS-13 is recommended as the primary choice due to active product status, proven performance characteristics, and direct package compatibility. TLV9151IDBVR is recommended when enhanced performance specifications (higher slew rate, increased bandwidth, rail-to-rail output) provide measurable system-level benefits and PCB layout modification is feasible. TLC27L1CS-13 is selected only when ultra-low power consumption is a critical design requirement.

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