TL074BCNG4 Equivalent & Substitute Parts

Part Overview

The TL074BCNG4 is a J-FET input operational amplifier containing four independent circuits in a 14-pin DIP package, manufactured by Texas Instruments. This device is classified as obsolete, making identification of equivalent substitute parts essential for ongoing design support and procurement continuity. The TL074BCNG4 serves applications requiring low input bias current, low input offset voltage, and moderate bandwidth performance in quad-channel configurations.

Substiute Parts

TL074BCNG4

Texas InstrumentsIn Stock: 990TL074BCNG4 Datasheet

Current PartRFQ

TL074BCN

STMicroelectronicsIn Stock: 1925TL074BCN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TL074BCNG4 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Criteria:

• Amplifier Type: J-FET input configuration
• Number of Circuits: 4 independent operational amplifiers
• Package / Case: 14-DIP (0.300", 7.62mm) form factor
• Mounting Type: Through Hole
• Operating Temperature Range: 0°C to 70°C minimum

Functional Compatibility Parameters:

• Slew Rate: 13 V/µs (minimum acceptable performance)
• Current - Output / Channel: 40 mA (minimum acceptable performance)
• Voltage - Supply Span: Must accommodate the required supply voltage range

The TL074BCN manufactured by STMicroelectronics meets all mandatory matching criteria and maintains functional compatibility within the specified parameter envelope. Both devices share identical package geometry, circuit count, amplifier topology, and thermal operating range, enabling direct substitution in through-hole PCB applications.

Parameter Comparison

Engineering Selection Recommendations

The TL074BCN (STMicroelectronics) is a direct substitute for the TL074BCNG4 based on the following engineering criteria:

Package and Mechanical Compatibility: Both devices utilize identical 14-DIP through-hole packaging with 0.300-inch (7.62mm) pin spacing, enabling direct PCB footprint compatibility without layout modification.

Electrical Functional Equivalence: Both devices provide four J-FET input operational amplifier circuits with matching slew rate (13 V/µs), output current capability (40 mA per channel), and supply current consumption (1.4 mA for four channels). The operating temperature range is identical (0°C to 70°C).

Compliance and Regulatory Status: Both the TL074BCNG4 and TL074BCN are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 (unlimited moisture sensitivity). Both devices share identical ECCN (EAR99) and HTSUS (8542.33.0001) classifications.

Obsolescence Mitigation: The TL074BCN is currently available with 1877 pieces in stock, providing procurement continuity for designs requiring the TL074BCNG4 (913 pieces in stock).

Parameter Variations: The TL074BCN exhibits superior input bias current (20 pA versus 65 pA) and lower input offset voltage (1 mV versus 2 mV), representing performance improvements. The TL074BCN specifies a fixed supply voltage of 36 V, whereas the TL074BCNG4 supports a 10 V to 30 V range. Applications operating within the 10 V to 30 V envelope must confirm compatibility with the TL074BCN's 36 V specification.

Frequently Asked Questions (FAQ)

Q: Can the TL074BCN be used as a direct replacement for the TL074BCNG4 in existing PCB designs?

A: Yes. Both devices share identical 14-DIP package geometry, pin count, and through-hole mounting configuration. No PCB layout modifications are required for mechanical or electrical interface compatibility.

Q: What are the key differences between the TL074BCNG4 and TL074BCN?

A: The primary differences are: (1) Input bias current: TL074BCNG4 specifies 65 pA maximum; TL074BCN specifies 20 pA maximum. (2) Input offset voltage: TL074BCNG4 specifies 2 mV maximum; TL074BCN specifies 1 mV maximum. (3) Supply voltage specification: TL074BCNG4 supports 10 V to 30 V; TL074BCN specifies 36 V fixed. Both devices maintain identical slew rate (13 V/µs), output current (40 mA per channel), and supply current (1.4 mA for four channels).

Q: Are there supply voltage compatibility concerns when substituting the TL074BCN for the TL074BCNG4?

A: Applications requiring operation below 36 V should confirm that the TL074BCN's fixed 36 V specification does not conflict with circuit design constraints. The TL074BCNG4 supports lower supply voltages (minimum 10 V), whereas the TL074BCN is specified at 36 V.

Q: Do both devices meet the same regulatory and compliance standards?

A: Yes. Both the TL074BCNG4 and TL074BCN are ROHS3 compliant, REACH unaffected, carry MSL Level 1 classification, and share identical ECCN (EAR99) and HTSUS (8542.33.0001) codes.

Q: What is the significance of the J-FET amplifier type for substitution purposes?

A: The J-FET input topology is a critical substitution criterion. J-FET input amplifiers are characterized by extremely low input bias current (pA range) and high input impedance, distinguishing them from bipolar input amplifiers. Substitutes must maintain J-FET input architecture to preserve circuit performance in applications sensitive to input bias current and impedance characteristics.

Q: Is the TL074BCN available in alternative package configurations?

A: The provided data specifies the TL074BCN in 14-DIP through-hole packaging only. Alternative package options are not included in this substitution reference.

Q: What inventory status should be considered when selecting between the TL074BCNG4 and TL074BCN?

A: The TL074BCNG4 has 913 pieces in stock; the TL074BCN has 1877 pieces in stock. Both devices are classified as obsolete. Procurement decisions should account for current inventory availability and long-term supply chain considerations.