TLC274ACNG4 Equivalent & Substitute Parts

Part Overview

The TLC274ACNG4 is a general-purpose operational amplifier integrated circuit featuring four independent amplifier circuits in a 14-pin DIP package. This device is designed for applications requiring low-power, general-purpose amplification with rail-to-rail input and output capabilities across a wide supply voltage range.

The TLC274ACNG4 is currently discontinued at DiGi Electronics. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production requirements. Substitute parts must maintain electrical equivalence across all critical parameters while accommodating different packaging and mounting technologies.

Substiute Parts

TLC274ACNG4

Texas InstrumentsIn Stock: 1016TLC274ACNG4 Datasheet

Current PartRFQ

TLC274ACDR

Texas InstrumentsIn Stock: 16305TLC274ACDR Datasheet

MFR RecommendedRFQ

TLC274ACN

Texas InstrumentsIn Stock: 4247TLC274ACN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC274ACNG4 is determined by electrical parameter equivalence and functional compatibility. All substitute parts must maintain identical specifications across the following critical parameters:

• Amplifier Type: General Purpose
• Number of Circuits: 4 independent channels
• Slew Rate: 3.6 V/µs
• Gain Bandwidth Product: 2.2 MHz
• Input Bias Current: 0.6 pA
• Input Offset Voltage: 900 µV
• Supply Current: 2.7 mA (total for 4 channels)
• Output Current per Channel: 30 mA
• Supply Voltage Range: 3 V to 16 V
• Operating Temperature: 0°C to 70°C
• Base Product Number: TLC274

Substitute parts are grouped by mounting technology and packaging format. The primary distinction between substitutes is the transition from through-hole DIP packaging to surface-mount SOIC packaging, or variations in product lifecycle status. All identified substitutes maintain complete electrical equivalence to the main part.

Parameter Comparison

Engineering Selection Recommendations

TLC274ACDR (Primary Substitute - Surface Mount)

The TLC274ACDR is the manufacturer-recommended substitute for the TLC274ACNG4. This part maintains complete electrical equivalence while offering surface-mount SOIC packaging. The TLC274ACDR is currently in active production status with substantial inventory availability (16,291 units). This part is suitable for new designs or production transitions requiring surface-mount technology. ROHS3 compliance and REACH unaffected status confirm regulatory alignment with the original part.

TLC274ACN (Secondary Substitute - Through Hole)

The TLC274ACN provides electrical equivalence in the original through-hole DIP package format. This part is designated as Last Time Buy, indicating limited future availability. The TLC274ACN is appropriate for legacy system support or applications where through-hole mounting is required. ROHS3 compliance is confirmed; however, Moisture Sensitivity Level is listed as Not Applicable for this variant.

Both substitute parts share the base product number TLC274 and maintain identical electrical performance specifications. Selection between substitutes depends on packaging requirements and production technology compatibility rather than electrical performance.

Frequently Asked Questions (FAQ)

Q: Can the TLC274ACDR replace the TLC274ACNG4 in existing through-hole PCB designs?

A: No. The TLC274ACDR uses 14-SOIC surface-mount packaging (0.154" width) while the TLC274ACNG4 uses 14-DIP through-hole packaging (0.300" width). PCB layout and footprint modifications are required. For through-hole compatibility, use the TLC274ACN instead.

Q: Are all electrical parameters identical between the three parts?

A: Yes. The TLC274ACNG4, TLC274ACDR, and TLC274ACN share identical electrical specifications including slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current, and supply voltage range. Differences exist only in packaging format and product lifecycle status.

Q: What is the difference between the TLC274ACNG4 and TLC274ACN?

A: Both parts use 14-DIP through-hole packaging and are electrically identical. The primary difference is product status: TLC274ACNG4 is discontinued at DiGi Electronics, while TLC274ACN is designated Last Time Buy. The TLC274ACN offers continued availability for through-hole applications.

Q: Is the TLC274ACDR suitable for new product designs?

A: Yes. The TLC274ACDR is in active production status with high inventory availability. This part is the recommended choice for new designs requiring surface-mount technology. Active status ensures long-term component availability and supply chain stability.

Q: Do all substitute parts meet RoHS and REACH compliance requirements?

A: Yes. All three parts (TLC274ACNG4, TLC274ACDR, and TLC274ACN) are ROHS3 compliant and REACH unaffected. Regulatory compliance is maintained across all substitutes.

Q: What is the Moisture Sensitivity Level difference between TLC274ACNG4 and TLC274ACN?

A: The TLC274ACNG4 specifies MSL 1 (Unlimited), while TLC274ACN lists MSL as Not Applicable. Both designations indicate minimal moisture sensitivity risk during storage and handling. This difference does not affect functional compatibility or substitution suitability.

Q: Can I use the TLC274ACDR in applications originally designed for the TLC274ACNG4?

A: Electrical substitution is complete. However, physical integration requires PCB redesign due to different package formats. The SOIC package is significantly smaller and uses surface-mount technology instead of through-hole insertion. Verify PCB layout compatibility before implementation.