TLC074AIN Equivalent & Substitute Parts

Part Overview

The TLC074AIN is a CMOS operational amplifier integrated circuit containing four independent amplifier circuits in a 14-pin DIP package. This device is classified as Last Time Buy, indicating discontinued production with limited inventory availability. The TLC074AIN operates across a wide supply voltage range and is suitable for general-purpose analog signal processing applications requiring low input bias current and moderate bandwidth characteristics. Due to its Last Time Buy status, identifying functionally equivalent substitute parts with active production status is essential for design continuity and long-term component sourcing.

Substiute Parts

TLC074AIN

Texas InstrumentsIn Stock: 1952TLC074AIN Datasheet

Current PartRFQ

TLC074AIDR

Texas InstrumentsIn Stock: 2199TLC074AIDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC074AIN is determined by electrical parameter equivalence and compliance with regulatory standards. The primary substitute identified is the TLC074AIDR, which shares the identical base product number (TLC074) and maintains all critical electrical specifications including amplifier type, circuit count, slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current capability, and supply voltage range.

The substitution logic is based on the following key parameters that must remain constant:

• Amplifier Type: CMOS
• Number of Circuits: 4
• Slew Rate: 19 V/µs
• Gain Bandwidth Product: 10 MHz
• Current - Input Bias: 1.5 pA
• Voltage - Input Offset: 390 µV
• Current - Supply: 2.1 mA (x4 Channels)
• Current - Output / Channel: 57 mA
• Voltage - Supply Span: 4.5 V to 16 V
• Operating Temperature Range: -40°C to 125°C
• RoHS Status: ROHS3 Compliant

The primary difference between the main part and its substitute is the packaging format and mounting technology, which affects board-level integration but not electrical functionality.

Parameter Comparison

Engineering Selection Recommendations

The TLC074AIDR is the direct electrical equivalent of the TLC074AIN and is suitable for substitution in applications where the circuit topology and electrical performance requirements are identical. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current manufacturing standards.

The TLC074AIN is designated Last Time Buy, indicating that production has been discontinued and existing inventory is limited. The TLC074AIDR maintains Active product status with higher inventory availability (2100 Pcs), providing superior long-term sourcing reliability.

The primary consideration for substitution is the packaging format difference. The TLC074AIN uses a through-hole 14-DIP package suitable for breadboard prototyping and through-hole PCB assembly. The TLC074AIDR uses a surface-mount 14-SOIC package, which requires surface-mount assembly capabilities and PCB design modifications. This packaging difference necessitates changes to PCB layout, footprint design, and assembly process but does not affect electrical functionality or performance characteristics.

Selection between these parts should be based on the assembly technology available in the manufacturing environment and PCB design constraints. Through-hole assembly capability requires the TLC074AIN or equivalent DIP-packaged alternatives. Surface-mount assembly capability enables use of the TLC074AIDR with associated benefits of smaller board footprint and automated assembly compatibility.

Frequently Asked Questions (FAQ)

Q: Can the TLC074AIDR directly replace the TLC074AIN in an existing circuit?

A: Electrical substitution is complete. The TLC074AIDR contains identical amplifier circuits with matching electrical specifications. However, physical substitution requires PCB redesign due to different package formats (14-DIP versus 14-SOIC) and mounting technologies (through-hole versus surface-mount).

Q: What are the key electrical parameters that define substitution compatibility for the TLC074 series?

A: Substitution compatibility is determined by matching the following parameters: amplifier type (CMOS), circuit count (4), slew rate (19 V/µs), gain bandwidth product (10 MHz), input bias current (1.5 pA), input offset voltage (390 µV), supply current (2.1 mA for all channels), output current per channel (57 mA), supply voltage range (4.5 V to 16 V), and operating temperature range (-40°C to 125°C).

Q: Why is the TLC074AIN designated Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of this part number. Existing inventory is limited and will not be replenished. This designation necessitates transition to active product alternatives such as the TLC074AIDR for continued component availability.

Q: What is the difference between the 14-DIP and 14-SOIC packages?

A: The 14-DIP (Dual In-line Package) is a through-hole package with 0.300-inch lead spacing, suitable for manual insertion and breadboard use. The 14-SOIC (Small Outline Integrated Circuit) is a surface-mount package with 0.154-inch width, designed for automated assembly and higher-density PCB layouts. Both packages contain identical die and electrical functionality.

Q: Are there compliance or regulatory differences between the TLC074AIN and TLC074AIDR?

A: Both parts maintain identical compliance status: ROHS3 compliant and REACH unaffected. No regulatory or compliance barriers exist to substitution.

Q: What inventory considerations apply to these parts?

A: The TLC074AIN has 1900 Pcs in stock with Last Time Buy status, indicating no future replenishment. The TLC074AIDR has 2100 Pcs in stock with Active product status, ensuring continued availability and supply chain reliability for future production requirements.