TLC274BIN Equivalent & Substitute Parts

Part Overview

The TLC274BIN is a general-purpose operational amplifier integrated circuit manufactured by Texas Instruments, configured as a 4-circuit device in a 14-DIP through-hole package. This component is classified as Last Time Buy, indicating discontinued production with limited remaining inventory of 767 pieces. The TLC274BIN operates across a supply voltage range of 4V to 16V and is suitable for applications requiring low input bias current and moderate bandwidth performance. Equivalent and substitute parts are necessary due to product discontinuation status and to accommodate alternative packaging requirements or sourcing constraints.

Substiute Parts

TLC274BIN

Texas InstrumentsIn Stock: 795TLC274BIN Datasheet

Current PartRFQ

TLC274BIDR

Texas InstrumentsIn Stock: 4658TLC274BIDR 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 eligibility for the TLC274BIN is determined by the following critical parameters: amplifier type classification, number of circuits (4-circuit configuration), slew rate performance, gain bandwidth product, input bias current characteristics, supply voltage operating range, and package compatibility. Substitute parts must maintain functional equivalence within the electrical specifications while accommodating different packaging formats or manufacturing sources.

The substitute parts are grouped into two categories:

Category 1: Direct Electrical Equivalent with Packaging Variation The TLC274BIDR maintains identical electrical specifications to the TLC274BIN (slew rate 3.6V/µs, gain bandwidth product 2.2 MHz, input bias current 0.6 pA) but differs in mounting technology (surface mount 14-SOIC versus through-hole 14-DIP) and product status (Active versus Last Time Buy).

Category 2: Functional Equivalent with Specification Variance The NJM13403D1 and NJU7024D# provide functional substitution with measurable differences in electrical performance. The NJM13403D1 maintains the 4-circuit general-purpose amplifier configuration and 14-DIP package but exhibits lower slew rate (1.2V/µs versus 3.6V/µs), reduced gain bandwidth product (2 MHz versus 2.2 MHz), higher input bias current (25 nA versus 0.6 pA), and narrower supply voltage range (2V to 14V versus 4V to 16V). The NJU7024D# is a CMOS amplifier variant with significantly different performance characteristics including lower slew rate (0.4V/µs), reduced bandwidth (400 kHz), and restricted operating temperature range (-20°C to 75°C).

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution (Identical Electrical Performance): The TLC274BIDR is the primary substitute when electrical specifications must remain unchanged. This part maintains all electrical parameters of the TLC274BIN (3.6V/µs slew rate, 2.2 MHz bandwidth, 0.6 pA input bias current) and carries Active product status with significantly higher inventory availability (4621 pieces). The only functional difference is the packaging format: surface-mount 14-SOIC versus through-hole 14-DIP. Selection of TLC274BIDR requires PCB redesign to accommodate surface-mount technology. Both parts are ROHS3 compliant and suitable for identical application requirements.

For Functional Substitution with Performance Trade-offs: The NJM13403D1 provides a through-hole 14-DIP package alternative with Active product status and 827 pieces in stock. This part is suitable for applications where the following specification reductions are acceptable: slew rate reduced to 1.2V/µs (67% of original), gain bandwidth product reduced to 2 MHz (91% of original), and input bias current increased to 25 nA (41,667 times higher). The supply voltage range is narrower (2V to 14V versus 4V to 16V). The NJM13403D1 is RoHS compliant and maintains the -40°C to 85°C operating temperature range.

For Low-Power Applications: The NJU7024D# is a CMOS amplifier variant suitable only for applications where power consumption is the primary design constraint. This part reduces supply current to 150 µA (5.6% of TLC274BIN consumption) but introduces significant performance degradation: slew rate of 0.4V/µs (11% of original), gain bandwidth product of 400 kHz (18% of original), and input offset voltage of 10 mV (29 times higher). The operating temperature range is restricted to -20°C to 75°C. The NJU7024D# is RoHS compliant with 652 pieces in stock.

All substitute parts maintain REACH Unaffected status and EAR99 ECCN classification consistent with the TLC274BIN.

Frequently Asked Questions (FAQ)

Q1: Can the TLC274BIDR replace the TLC274BIN in existing through-hole PCB designs?

A: No. The TLC274BIDR uses surface-mount 14-SOIC packaging while the TLC274BIN uses through-hole 14-DIP packaging. Direct PCB substitution is not possible without redesigning the board layout and footprint. However, the TLC274BIDR can be used in new surface-mount designs with identical electrical performance.

Q2: What are the key electrical differences between TLC274BIN and NJM13403D1?

A: The NJM13403D1 has lower slew rate (1.2V/µs versus 3.6V/µs), lower gain bandwidth product (2 MHz versus 2.2 MHz), and significantly higher input bias current (25 nA versus 0.6 pA). Both maintain 4-circuit configuration, 14-DIP package, and -40°C to 85°C operating range. The NJM13403D1 has a narrower supply voltage range (2V to 14V versus 4V to 16V).

Q3: Is the NJU7024D# suitable as a direct replacement for the TLC274BIN?

A: The NJU7024D# is not a direct replacement. It is a CMOS amplifier with substantially different electrical characteristics: 0.4V/µs slew rate (versus 3.6V/µs), 400 kHz bandwidth (versus 2.2 MHz), and 10 mV input offset voltage (versus 340 µV). The operating temperature range is also restricted to -20°C to 75°C. Use only in applications where these performance reductions are acceptable and power consumption is critical.

Q4: Why is the TLC274BIN marked as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of this part. The remaining inventory of 767 pieces represents the final available stock. For long-term production requirements, migration to an Active product such as TLC274BIDR, NJM13403D1, or NJU7024D# is necessary.

Q5: Are all substitute parts RoHS compliant?

A: Yes. The TLC274BIN is ROHS3 compliant. The TLC274BIDR is also ROHS3 compliant. The NJM13403D1 and NJU7024D# are RoHS compliant. All parts meet environmental compliance requirements for current manufacturing standards.

Q6: Which substitute part has the highest inventory availability?

A: The TLC274BIDR has the highest inventory with 4621 pieces in stock, followed by NJM13403D1 with 827 pieces and NJU7024D# with 652 pieces. The original TLC274BIN has 767 pieces remaining.

Q7: Can I use NJU7024D# in a high-speed signal processing application?

A: No. The NJU7024D# has a gain bandwidth product of only 400 kHz and slew rate of 0.4V/µs, making it unsuitable for high-speed applications. The TLC274BIN, TLC274BIDR, or NJM13403D1 are more appropriate for signal processing requiring 2 MHz or higher bandwidth.

Q8: What is the primary advantage of selecting TLC274BIDR over NJM13403D1?

A: The TLC274BIDR maintains identical electrical specifications to the TLC274BIN (3.6V/µs slew rate, 2.2 MHz bandwidth, 0.6 pA input bias current) and has significantly higher inventory availability (4621 versus 827 pieces). The NJM13403D1 offers lower performance but maintains through-hole 14-DIP packaging.