TLC27M4AIN Equivalent & Substitute Parts

Part Overview

The TLC27M4AIN is a general-purpose operational amplifier integrated circuit manufactured by Texas Instruments, featuring four independent amplifier circuits in a 14-pin DIP package. This device is classified as a Last Time Buy product, indicating discontinued production with limited inventory availability. The TLC27M4AIN operates across a wide supply voltage range of 4V to 16V and is suitable for applications requiring low-power, general-purpose amplification in through-hole mounting configurations. Due to its Last Time Buy status, identifying equivalent substitute parts with compatible electrical and mechanical specifications is essential for design continuity and long-term component sourcing.

Substiute Parts

TLC27M4AIN

Texas InstrumentsIn Stock: 2273TLC27M4AIN Datasheet

Current PartRFQ

TLC27M4AIDR

Texas InstrumentsIn Stock: 1450TLC27M4AIDR Datasheet

MFR RecommendedRFQ

NJU7024D#

Nisshinbo Micro Devices Inc.In Stock: 715NJU7024D# Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLC27M4AIN are identified based on strict electrical and mechanical compatibility criteria. The primary substitution logic is structured as follows:

Electrical Compatibility Criteria:

• Number of circuits: Must equal 4 independent amplifier channels
• Amplifier type: General-purpose or CMOS amplifier classification
• Supply voltage range: Must encompass or match the 4V to 16V operating window
• Operating temperature range: Must support the -40°C to 85°C specification or a subset thereof
• Key performance parameters: Slew rate, gain bandwidth product, input bias current, and input offset voltage must fall within acceptable tolerance windows for the application category

Mechanical Compatibility Criteria:

• Package type: 14-pin DIP or equivalent surface-mount alternatives (14-SOIC)
• Pin count: Must equal 14 pins
• Mounting configuration: Through-hole or surface-mount variants of the same base design

Identified Substitute Parts:

1. TLC27M4AIDR (Texas Instruments) — Manufacturer-recommended substitute with identical electrical specifications but surface-mount 14-SOIC packaging
2. NJU7024D# (Nisshinbo Micro Devices Inc.) — Alternative CMOS amplifier with 4 circuits in 14-DIP through-hole packaging; operates within compatible supply and temperature ranges with minor performance variations

Parameter Comparison

Engineering Selection Recommendations

TLC27M4AIDR Selection: The TLC27M4AIDR is the manufacturer-recommended substitute for the TLC27M4AIN. This part maintains identical electrical specifications including slew rate (0.62 V/µs), gain bandwidth product (525 kHz), input bias current (0.7 pA), and input offset voltage (900 µV). The primary difference is packaging: TLC27M4AIDR uses 14-SOIC surface-mount configuration versus the through-hole 14-DIP of the original part. This substitute is appropriate for new designs or board redesigns that accommodate surface-mount technology. Both parts are ROHS3 compliant and manufactured by Texas Instruments. The TLC27M4AIDR carries Active product status, ensuring continued availability and support.

NJU7024D# Selection: The NJU7024D# provides an alternative through-hole solution in 14-DIP packaging, maintaining mechanical compatibility with the TLC27M4AIN. This part is manufactured by Nisshinbo Micro Devices Inc. and carries Active product status. The NJU7024D# exhibits lower slew rate (0.4 V/µs versus 0.62 V/µs) and reduced gain bandwidth product (400 kHz versus 525 kHz), representing a performance trade-off. However, it offers significantly lower supply current consumption (150 µA versus 570 µA), making it suitable for power-constrained applications. The operating temperature range is narrower (-20°C to 75°C versus -40°C to 85°C), which may limit use in extended temperature environments. Input offset voltage is substantially higher (10 mV versus 900 µV), requiring evaluation for precision applications. This substitute is RoHS compliant and appropriate for designs where through-hole mounting and reduced power consumption are prioritized over performance specifications.

Frequently Asked Questions (FAQ)

Q1: Can TLC27M4AIDR be used as a direct replacement for TLC27M4AIN in existing through-hole PCB designs?

A: No. While TLC27M4AIDR maintains identical electrical specifications, it uses 14-SOIC surface-mount packaging instead of 14-DIP through-hole packaging. Direct PCB substitution is not possible without board redesign. However, TLC27M4AIDR is suitable for new designs or boards that are redesigned to accommodate surface-mount components.

Q2: What are the key performance differences between TLC27M4AIN and NJU7024D#?

A: The NJU7024D# exhibits lower slew rate (0.4 V/µs versus 0.62 V/µs) and reduced gain bandwidth product (400 kHz versus 525 kHz). Supply current consumption is significantly lower (150 µA versus 570 µA). Input offset voltage is higher (10 mV versus 900 µV). Operating temperature range is narrower (-20°C to 75°C versus -40°C to 85°C). Both maintain 4-circuit configuration and 14-DIP through-hole packaging.

Q3: Is NJU7024D# suitable for precision analog applications requiring low input offset voltage?

A: No. The NJU7024D# has input offset voltage of 10 mV compared to 900 µV for the TLC27M4AIN. This 11-fold increase makes NJU7024D# unsuitable for applications requiring tight offset voltage specifications. Use TLC27M4AIDR for precision requirements while maintaining the original electrical performance.

Q4: Can NJU7024D# operate at the full -40°C to 85°C temperature range of the TLC27M4AIN?

A: No. NJU7024D# is rated for -20°C to 75°C operation, which does not cover the full -40°C to 85°C range of the TLC27M4AIN. For applications requiring extended temperature operation below -20°C or above 75°C, NJU7024D# is not suitable.

Q5: What is the compliance status of substitute parts?

A: Both TLC27M4AIDR and NJU7024D# are RoHS compliant. TLC27M4AIDR is ROHS3 compliant (matching the original part). NJU7024D# is RoHS compliant. Both parts are REACH unaffected and carry EAR99 ECCN classification.

Q6: Which substitute part should be selected for power-constrained applications?

A: NJU7024D# is appropriate for power-constrained designs due to its significantly lower supply current (150 µA versus 570 µA). However, verify that the reduced slew rate (0.4 V/µs), lower gain bandwidth product (400 kHz), higher input offset voltage (10 mV), and narrower operating temperature range (-20°C to 75°C) are acceptable for the specific application.

Q7: Are there packaging options available for through-hole mounting?

A: Yes. Both TLC27M4AIN and NJU7024D# use 14-DIP through-hole packaging (0.300", 7.62mm). TLC27M4AIDR uses 14-SOIC surface-mount packaging. For through-hole designs, select between TLC27M4AIN (Last Time Buy status) or NJU7024D# (Active status).