TLC27L1IP Equivalent & Substitute Parts

Part Overview

The TLC27L1IP is a general-purpose operational amplifier manufactured by Texas Instruments, housed in an 8-DIP through-hole package. This device belongs to the LinCMOS™ series and is classified as obsolete. The TLC27L1IP features low input bias current (0.7 pA) and operates across a wide supply voltage range of 4V to 16V, making it suitable for precision analog applications requiring minimal power consumption.

Due to its obsolete product status, identifying equivalent and substitute parts is essential for design continuity, production support, and long-term component availability. Substitute parts must maintain functional compatibility while accommodating differences in electrical performance and packaging options.

Substiute Parts

TLC27L1IP

Texas InstrumentsIn Stock: 858TLC27L1IP Datasheet

Current PartRFQ

NJU7021D#

Nisshinbo Micro Devices Inc.In Stock: 1262NJU7021D# Datasheet

MFR RecommendedRFQ

NJU7031D#

Nisshinbo Micro Devices Inc.In Stock: 1101NJU7031D# Datasheet

MFR RecommendedRFQ

NJU7061D#

Nisshinbo Micro Devices Inc.In Stock: 1049NJU7061D# Datasheet

MFR RecommendedRFQ

TLC27L1ID

Texas InstrumentsIn Stock: 1235TLC27L1ID Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC27L1IP is determined by the following critical parameters:

Package Compatibility: All substitute parts must maintain the 8-DIP through-hole form factor (0.300", 7.62mm) to ensure direct PCB footprint compatibility, with the exception of TLC27L1ID, which uses 8-SOIC surface-mount packaging and requires PCB redesign.

Electrical Performance Envelope: Substitute parts must operate within the supply voltage range of 4V to 16V minimum. Parts with lower minimum supply voltage (3V) remain compatible with the original 4V to 16V operating window.

Functional Classification: All substitutes are general-purpose operational amplifiers with a single circuit configuration, maintaining the same functional category as the original part.

Compliance Requirements: Substitute parts must maintain RoHS compliance and REACH unaffected status to satisfy regulatory requirements equivalent to the original ROHS3 compliant TLC27L1IP.

The substitute parts are grouped into two categories based on electrical performance characteristics:

Category 1 - Standard Performance (NJU7021D#, NJU7061D#): These parts offer enhanced slew rate and gain bandwidth product compared to the original TLC27L1IP, with active product status and current manufacturing support.

Category 2 - Packaging Variant (TLC27L1ID): This part maintains identical electrical specifications to the TLC27L1IP but uses surface-mount 8-SOIC packaging instead of through-hole 8-DIP, classified as Last Time Buy status.

Parameter Comparison

Engineering Selection Recommendations

For Direct Through-Hole Replacement (No PCB Redesign):

NJU7031D# is the primary substitute when direct footprint compatibility is required. This part maintains the 8-DIP through-hole package and extends the operating temperature range to -40°C to 85°C, matching the original TLC27L1IP specification. NJU7031D# features rail-to-rail output capability and significantly improved slew rate (3.5V/µs) and gain bandwidth product (1.5 MHz), providing enhanced performance headroom for signal processing applications. The part is currently in active production status with RoHS compliance certification.

NJU7021D# and NJU7061D# are alternative through-hole substitutes with active product status. Both parts operate within the -20°C to 75°C temperature range, which is narrower than the original -40°C to 85°C specification. NJU7021D# offers standard output configuration, while NJU7061D# provides rail-to-rail output with improved input offset voltage (2 mV). Selection between these parts depends on application temperature requirements and output swing specifications.

For Surface-Mount Conversion (PCB Redesign Required):

TLC27L1ID maintains identical electrical specifications to the TLC27L1IP, including slew rate (0.05V/µs), gain bandwidth product (85 kHz), and input bias current (0.7 pA). This part is classified as Last Time Buy status and uses 8-SOIC surface-mount packaging. TLC27L1ID is suitable only for applications undergoing PCB redesign or transitioning to surface-mount assembly processes.

Compliance and Regulatory Considerations:

All substitute parts maintain RoHS compliance and REACH unaffected status, satisfying regulatory requirements equivalent to the original TLC27L1IP. NJU7031D# and TLC27L1ID maintain ROHS3 compliance, while NJU7021D# and NJU7061D# carry standard RoHS compliance certification.

Frequently Asked Questions (FAQ)

Q: Can NJU7021D# be used as a direct replacement for TLC27L1IP without circuit modifications?

A: NJU7021D# maintains the same 8-DIP through-hole package and supply voltage range (3V to 16V), ensuring physical and electrical compatibility. However, the part exhibits higher input offset voltage (10 mV versus 1.1 mV) and increased supply current (150 µA versus 14 µA). Applications requiring precision offset voltage specifications or ultra-low power consumption must evaluate these parameter differences. The operating temperature range is narrower (-20°C to 75°C versus -40°C to 85°C).

Q: What is the difference between NJU7031D# and NJU7061D# for TLC27L1IP substitution?

A: Both parts maintain 8-DIP through-hole packaging and active product status. NJU7031D# operates across the full -40°C to 85°C temperature range matching the original part, while NJU7061D# is limited to -20°C to 75°C. NJU7031D# features higher slew rate (3.5V/µs) and gain bandwidth product (1.5 MHz), while NJU7061D# offers improved input offset voltage (2 mV) with moderate performance (0.4V/µs slew rate, 400 kHz bandwidth). Both provide rail-to-rail output capability.

Q: Is TLC27L1ID suitable for existing PCB designs using TLC27L1IP?

A: TLC27L1ID is not suitable for direct PCB replacement. The part uses 8-SOIC surface-mount packaging instead of 8-DIP through-hole, requiring PCB redesign and assembly process changes. TLC27L1ID is classified as Last Time Buy status, indicating limited future availability. This part is appropriate only for new designs or PCB revisions transitioning to surface-mount technology.

Q: What are the key electrical differences between TLC27L1IP and NJU7031D#?

A: TLC27L1IP and NJU7031D# differ in slew rate (0.05V/µs versus 3.5V/µs), gain bandwidth product (85 kHz versus 1.5 MHz), supply current (14 µA versus 1 mA), and output type (standard versus rail-to-rail). NJU7031D# provides significantly faster signal processing capability and wider output swing range. Input bias current (0.7 pA versus 1 pA) and input offset voltage (1.1 mV versus 10 mV) show minor differences. Both parts operate across -40°C to 85°C temperature range.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts maintain RoHS compliance. NJU7031D# and TLC27L1ID carry ROHS3 certification matching the original TLC27L1IP. NJU7021D# and NJU7061D# carry standard RoHS certification. All parts are REACH unaffected, satisfying regulatory requirements for electronic component procurement.

Q: What supply voltage range is compatible across all substitute parts?

A: The common supply voltage range across all substitute parts is 4V to 16V, matching the original TLC27L1IP specification. NJU7021D#, NJU7031D#, and NJU7061D# support extended minimum supply voltage down to 3V, providing additional design flexibility. Applications operating at 4V to 16V supply voltage are compatible with all substitute options.

Q: Which substitute part offers the best performance upgrade for signal processing applications?

A: NJU7031D# provides the most significant performance enhancement, featuring 70× higher slew rate (3.5V/µs versus 0.05V/µs) and 17.6× higher gain bandwidth product (1.5 MHz versus 85 kHz). This part also offers rail-to-rail output capability, extending the usable output voltage range. NJU7031D# maintains the full -40°C to 85°C operating temperature range and is currently in active production status.