TL074BCN Equivalent & Substitute Parts

Part Overview

The TL074BCN is a J-FET input operational amplifier manufactured by STMicroelectronics, configured as a 4-circuit device in a 14-DIP package. This component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing design support and procurement requirements. The TL074BCN operates across a 36V supply span with a 3 MHz gain bandwidth product and 13V/µs slew rate, making it suitable for applications requiring low input bias current and moderate bandwidth performance.

Key Parameters

Parameter	Value	Unit
Amplifier Type	J-FET	—
Number of Circuits	4	—
Slew Rate	13	V/µs
Gain Bandwidth Product	3	MHz
Current - Input Bias	20	pA
Voltage - Input Offset	1	mV
Current - Supply (x4 Channels)	1.4	mA
Current - Output / Channel	40	mA
Voltage - Supply Span	36	V
Operating Temperature	0 to 70	°C
Package / Case	14-DIP (0.300", 7.62mm)	—
Mounting Type	Through Hole	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the TL074BCN is determined by compatibility across the following critical parameters: amplifier type (J-FET), number of circuits (4), package type (14-DIP through-hole), supply voltage span (36V minimum), slew rate (13V/µs), gain bandwidth product (3 MHz), input bias current (20 pA), and operating temperature range (0°C to 70°C).

Substitute parts are grouped into two categories based on electrical performance alignment:

Category 1: Direct Electrical Equivalents — Parts maintaining identical or superior slew rate (13V/µs), gain bandwidth product (3 MHz or higher), input bias current (20 pA or lower), and supply voltage specifications. These parts preserve the original circuit performance characteristics.

Category 2: Functional Alternatives — Parts with reduced slew rate (1V/µs) and gain bandwidth product (1 MHz) but maintaining J-FET amplifier topology, 4-circuit configuration, and 14-DIP packaging. These parts operate within different performance envelopes and require circuit validation.

Parameter Comparison

Parameter	TL074BCN	TL074ACN	TL074IN	LF347BN/NOPB	LF347N/NOPB	LF444CN/NOPB	LF444ACN/NOPB
Manufacturer	STMicroelectronics	STMicroelectronics	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Obsolete	Active	Active	Active	Active	Active
Amplifier Type	J-FET	J-FET	J-FET	J-FET	J-FET	J-FET	J-FET
Number of Circuits	4	4	4	4	4	4	4
Slew Rate (V/µs)	13	13	13	13	13	1	1
Gain Bandwidth Product (MHz)	3	3	5.25	4	4	1	1
Current - Input Bias (pA)	20	20	65	50	50	10	10
Voltage - Input Offset (mV)	1	3	3	3	5	3	2
Current - Supply (mA, x4 Channels)	1.4	1.4	1.4	7.2	7.2	0.6	0.6
Current - Output / Channel (mA)	40	40	—	—	—	14	14
Voltage - Supply Span (V)	36	36	20	36	36	36	44
Operating Temperature (°C)	0 to 70	0 to 70	-40 to 85	0 to 70	0 to 70	0 to 70	0 to 70
Package / Case	14-DIP	14-DIP	14-DIP	14-DIP	14-DIP	14-DIP	14-DIP
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Direct Equivalents)

TL074IN (Texas Instruments) is the recommended primary substitute. This part maintains the TL074 base product architecture with active product status, ensuring long-term availability. The TL074IN provides superior gain bandwidth product (5.25 MHz versus 3 MHz) and extended operating temperature range (-40°C to 85°C), while preserving the 13V/µs slew rate and 1.4mA supply current. The narrower supply voltage span (10V to 30V) requires verification against circuit requirements. ROHS3 compliance and RoHS certification status are maintained.

TL074ACN (STMicroelectronics) provides electrical equivalence with identical slew rate, gain bandwidth product, and supply specifications. However, this part shares obsolete product status with the TL074BCN, limiting its suitability for new procurement strategies.

Secondary Substitutes (Performance Variants)

LF347BN/NOPB and LF347N/NOPB (Texas Instruments) offer active product status with compatible 14-DIP packaging and 36V supply span. These parts deliver 4 MHz gain bandwidth product and 13V/µs slew rate, exceeding TL074BCN performance. Higher input bias current (50 pA versus 20 pA) and increased supply current (7.2mA versus 1.4mA) represent trade-offs requiring circuit evaluation.

LF444CN/NOPB and LF444ACN/NOPB (Texas Instruments) provide active product status and superior input bias current (10 pA). However, reduced slew rate (1V/µs) and gain bandwidth product (1 MHz) represent significant performance reduction. These parts are suitable only for applications where bandwidth and slew rate constraints are not limiting factors. LF444ACN/NOPB offers extended supply voltage span (44V).

Compliance and Certification

All substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the TL074BCN. Moisture sensitivity level (MSL 1 - Unlimited) is uniform across all candidates.

Frequently Asked Questions (FAQ)

Q: Can TL074IN directly replace TL074BCN in existing designs?

A: TL074IN is electrically compatible with TL074BCN across critical parameters including slew rate (13V/µs), supply current (1.4mA), and 14-DIP packaging. The narrower supply voltage span (10V to 30V versus 36V) requires verification that circuit supply rails fall within this range. The extended operating temperature range (-40°C to 85°C) provides additional margin beyond the TL074BCN specification (0°C to 70°C).

Q: What is the difference between TL074BCN and LF347BN/NOPB?

A: Both parts share J-FET amplifier topology, 4-circuit configuration, and 14-DIP packaging. LF347BN/NOPB provides higher gain bandwidth product (4 MHz versus 3 MHz) and active product status. The LF347BN/NOPB draws higher supply current (7.2mA versus 1.4mA) and exhibits higher input bias current (50 pA versus 20 pA). These differences require circuit validation for power consumption and offset voltage performance.

Q: Are LF444 series parts suitable substitutes for TL074BCN?

A: LF444CN/NOPB and LF444ACN/NOPB maintain J-FET amplifier topology and 14-DIP packaging with active product status. However, slew rate is reduced to 1V/µs (versus 13V/µs) and gain bandwidth product is reduced to 1 MHz (versus 3 MHz). These parts are suitable only for applications where bandwidth and slew rate are not performance-limiting factors. Input bias current is superior (10 pA versus 20 pA) and supply current is significantly reduced (0.6mA versus 1.4mA).

Q: What packaging considerations apply to these substitutes?

A: All substitute parts are available in 14-DIP through-hole packaging with 0.300" (7.62mm) pitch, maintaining mechanical compatibility with TL074BCN footprints. Supplier device package designations vary (14-DIP versus 14-PDIP) but refer to identical physical packages. Through-hole mounting type is consistent across all candidates.

Q: Which substitute offers the best long-term availability?

A: TL074IN, LF347BN/NOPB, LF347N/NOPB, LF444CN/NOPB, and LF444ACN/NOPB all carry active product status from Texas Instruments, ensuring continued manufacturing and distribution. TL074ACN and TL074BCN are both classified as obsolete and should not be selected for new designs requiring long-term component availability.

Q: How do input offset voltage specifications compare?

A: TL074BCN specifies 1 mV input offset voltage. TL074IN and LF444ACN/NOPB specify 3 mV and 2 mV respectively. LF347BN/NOPB specifies 3 mV, while LF347N/NOPB specifies 5 mV. Applications requiring minimal offset voltage should prioritize TL074BCN or LF444ACN/NOPB. Input offset voltage drift with temperature is not provided in the specification set.

Q: Are all substitutes RoHS compliant?

A: All substitute parts listed maintain ROHS3 compliance status, consistent with TL074BCN. REACH status is unaffected across all candidates. Moisture sensitivity level (MSL 1 - Unlimited) indicates no moisture sensitivity constraints for storage or handling.

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