TLC274IN Equivalent & Substitute Parts

Part Overview

The TLC274IN is a general-purpose operational amplifier integrated circuit manufactured by Texas Instruments, configured as a 4-circuit device in a 14-pin DIP package. This component is classified as Last Time Buy, indicating discontinued production with limited inventory availability. The TLC274IN serves applications requiring low-power, general-purpose amplification across industrial, consumer, and embedded system designs. Due to its Last Time Buy status, identifying functionally equivalent substitute parts is essential for design continuity and long-term supply chain planning.

Substiute Parts

TLC274IN

Texas InstrumentsIn Stock: 4508TLC274IN Datasheet

Current PartRFQ

TLC274IDR

Texas InstrumentsIn Stock: 1391TLC274IDR Datasheet

MFR RecommendedRFQ

NJM13403D1

Nisshinbo Micro Devices Inc.In Stock: 873NJM13403D1 Datasheet

MFR RecommendedRFQ

NJU7024D#

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC274IN is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• Number of circuits: 4 channels required
• Amplifier type classification: General Purpose
• Supply voltage range compatibility: Minimum 4V, Maximum 16V
• Operating temperature range: -40°C to 85°C minimum
• Package mechanical compatibility: Through-hole or surface-mount variants of the same base product family
• RoHS and REACH compliance status

Substitution Categories:

Category 1: Direct Package Variant (Same Base Product) TLC274IDR represents the surface-mount equivalent of TLC274IN, utilizing the same base product number (TLC274) with identical electrical specifications. This substitution applies when PCB design permits surface-mount technology and maintains full parameter equivalence.

Category 2: Functional Equivalents (Different Manufacturer, Compatible Parameters) NJM13403D1 and NJU7024D# are alternative manufacturers' products that meet the 4-circuit, general-purpose amplifier requirement with compatible supply voltage ranges and through-hole packaging. These substitutes differ in specific performance metrics (slew rate, gain bandwidth product, input bias current) but remain functionally compatible within the allowed parameter envelope for general-purpose applications.

Parameter Comparison

Engineering Selection Recommendations

TLC274IDR Selection Criteria: TLC274IDR is the primary recommended substitute when design specifications permit surface-mount technology adoption. This part maintains identical electrical performance to TLC274IN (slew rate 3.6V/µs, gain bandwidth product 2.2MHz, supply current 2.7mA) while offering Active product status and superior long-term availability. Both parts share ROHS3 compliance and identical supply voltage operating ranges (4V to 16V). Selection of TLC274IDR requires PCB redesign to accommodate 14-SOIC surface-mount packaging but eliminates through-hole assembly requirements.

NJM13403D1 Selection Criteria: NJM13403D1 serves as a through-hole compatible substitute when surface-mount conversion is not feasible. This Nisshinbo Micro Devices product maintains 4-circuit general-purpose amplifier architecture with identical operating temperature range (-40°C to 85°C) and compatible supply voltage envelope (2V to 14V minimum/maximum). Performance differences include reduced slew rate (1.2V/µs versus 3.6V/µs) and lower gain bandwidth product (2MHz versus 2.2MHz). NJM13403D1 exhibits superior input offset voltage specification (500µV versus 1.1mV) and higher output current capability (35mA versus 30mA per channel). Active product status ensures continued availability. RoHS compliance is confirmed.

NJU7024D# Selection Criteria: NJU7024D# substitution applies exclusively to applications requiring ultra-low supply current consumption (150µA total versus 2.7mA). This CMOS amplifier variant operates across 3V to 16V supply range with exceptional input bias current (1pA). Significant performance trade-offs include substantially reduced slew rate (0.4V/µs) and gain bandwidth product (400kHz), making this substitute suitable only for low-frequency, low-power applications. Operating temperature range limitation (-20°C to 75°C) restricts use in extended temperature environments. Active product status and RoHS compliance are confirmed.

Frequently Asked Questions (FAQ)

Q1: Can TLC274IDR directly replace TLC274IN in existing through-hole PCB designs?

A: No. TLC274IDR uses 14-SOIC surface-mount packaging (0.154" width) versus TLC274IN's 14-DIP through-hole package (0.300" width). PCB redesign is required to accommodate the different footprint and assembly method. Electrical performance is identical; only packaging differs.

Q2: What are the key performance differences between TLC274IN and NJM13403D1?

A: Both devices provide 4-circuit general-purpose amplification with identical operating temperature range (-40°C to 85°C). NJM13403D1 exhibits lower slew rate (1.2V/µs versus 3.6V/µs) and reduced gain bandwidth product (2MHz versus 2.2MHz), resulting in slower signal response. NJM13403D1 offers superior input offset voltage (500µV versus 1.1mV) and higher output current per channel (35mA versus 30mA). Supply voltage range differs: NJM13403D1 operates 2V to 14V versus TLC274IN's 4V to 16V.

Q3: Is NJU7024D# suitable for high-speed signal processing applications?

A: No. NJU7024D# is not recommended for high-speed applications. Its slew rate of 0.4V/µs and gain bandwidth product of 400kHz are substantially lower than TLC274IN specifications (3.6V/µs and 2.2MHz respectively). NJU7024D# is optimized for ultra-low-power, low-frequency applications only.

Q4: Which substitute part offers the best long-term availability?

A: TLC274IDR and NJM13403D1 both carry Active product status, ensuring continued manufacturing and supply. TLC274IN is Last Time Buy with limited inventory (4400 pcs). TLC274IDR offers the highest availability assurance as a current-generation Texas Instruments product with 1360 pcs in stock.

Q5: Are all substitute parts RoHS compliant?

A: Yes. TLC274IDR is ROHS3 compliant. NJM13403D1 and NJU7024D# are RoHS compliant. All substitute parts meet environmental compliance requirements for EU and global markets.

Q6: Can NJM13403D1 operate at the full 16V maximum supply voltage of TLC274IN?

A: No. NJM13403D1 maximum supply voltage is 14V. Applications requiring 15V or 16V supply operation must use TLC274IN, TLC274IDR, or NJU7024D# (which supports 16V maximum).

Q7: What is the supply current difference between TLC274IN and NJU7024D#?

A: TLC274IN draws 2.7mA total supply current (4 channels). NJU7024D# draws only 150µA total, representing an 18-fold reduction. This dramatic difference makes NJU7024D# suitable only for battery-powered or ultra-low-power applications where performance trade-offs are acceptable.

Q8: Do all substitute parts support the full -40°C to 85°C operating temperature range?

A: TLC274IDR and NJM13403D1 support the full -40°C to 85°C range. NJU7024D# is limited to -20°C to 75°C, restricting use in extended low-temperature environments below -20°C.