TL064ACN Equivalent & Substitute Parts

Part Overview

The TL064ACN is a J-FET input operational amplifier containing four independent circuits in a 14-DIP package, manufactured by STMicroelectronics. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and production continuity. The TL064ACN operates across a supply voltage range of 6V to 36V with a slew rate of 3.5V/µs and gain bandwidth product of 1 MHz, making it suitable for precision analog signal processing applications requiring low input bias current characteristics.

Key Parameters

Parameter	Value	Unit
Amplifier Type	J-FET	—
Number of Circuits	4	—
Slew Rate	3.5	V/µs
Gain Bandwidth Product	1	MHz
Current - Input Bias	30	pA
Voltage - Input Offset	3	mV
Current - Supply (x4 Channels)	200	µA
Current - Output / Channel	20	mA
Voltage - Supply Span (Min)	6	V
Voltage - Supply Span (Max)	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 TL064ACN is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:

Critical Parameters for Substitution:

Amplifier Type (J-FET input architecture)
Number of Circuits (4 independent amplifiers)
Package / Case (14-DIP form factor)
Mounting Type (Through Hole)
Supply Voltage Range compatibility (minimum 6V, maximum 36V)
Slew Rate (3.5V/µs or higher)
Gain Bandwidth Product (1 MHz or higher)
Input Bias Current (30 pA or lower)

Direct Equivalent: The TL064ACN manufactured by onsemi maintains identical electrical specifications and package configuration, differing only in supply voltage span (10V to 30V) and RoHS compliance status.

Upgrade Equivalent: The TL064IN from STMicroelectronics provides identical electrical performance with extended operating temperature range (-40°C to 105°C) and maintains full RoHS3 compliance.

Similar Alternatives: The LF444ACN/NOPB and LF444CN/NOPB from Texas Instruments are J-FET input amplifiers with 4 circuits in 14-DIP packaging. These devices feature lower input bias current (10 pA) and lower slew rate (1V/µs), with different supply voltage specifications.

General Purpose Alternatives: The LM224N, LM224KN, LM2902N, LM2902KN, LM2902N/NOPB, and LM248N are general-purpose operational amplifiers with 4 circuits in 14-DIP packaging. These devices employ different input architectures (not J-FET) and exhibit different electrical characteristics including lower input bias current and different supply voltage ranges.

Parameter Comparison

Parameter	TL064ACN (STMicroelectronics)	TL064ACN (onsemi)	TL064IN (STMicroelectronics)	LF444ACN/NOPB (TI)	LF444CN/NOPB (TI)	LM224N (STMicroelectronics)	LM2902N (STMicroelectronics)	LM2902N/NOPB (TI)
Amplifier Type	J-FET	J-FET	J-FET	J-FET	J-FET	General Purpose	General Purpose	General Purpose
Number of Circuits	4	4	4	4	4	4	4	4
Slew Rate (V/µs)	3.5	3.5	3.5	1	1	0.4	0.4	—
Gain Bandwidth Product (MHz)	1	1	1	1	1	1.3	1	1
Current - Input Bias (pA)	30	30	30	10	10	20 nA	20 nA	45 nA
Voltage - Input Offset (mV)	3	3	3	2	3	2	2	2
Current - Supply (µA)	200	200	200	600	600	1500	1500	1500
Current - Output / Channel (mA)	20	20	20	14	14	40	40	40
Voltage - Supply Span Min (V)	6	10	6	44	36	3	3	3
Voltage - Supply Span Max (V)	36	30	36	44	36	30	30	32
Operating Temperature (°C)	0 to 70	0 to 70	-40 to 105	0 to 70	0 to 70	-40 to 105	-40 to 125	-40 to 85
Package / Case	14-DIP	14-DIP	14-DIP	14-DIP	14-DIP	14-DIP	14-DIP	14-DIP
Product Status	Obsolete	Obsolete	Obsolete	Active	Active	Obsolete	Obsolete	Active
RoHS Status	ROHS3 Compliant	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Substitution (Identical Electrical Performance):

The TL064IN from STMicroelectronics is the primary recommended substitute for the TL064ACN. This device maintains all electrical specifications including J-FET input architecture, 3.5V/µs slew rate, 1 MHz gain bandwidth product, and 30 pA input bias current. The TL064IN extends the operating temperature range to -40°C to 105°C, providing enhanced performance for wider environmental conditions. Both devices are ROHS3 compliant and maintain identical 14-DIP packaging. The TL064IN is classified as obsolete but offers superior temperature performance for applications requiring extended operating ranges.

The TL064ACN from onsemi provides direct electrical equivalence with identical specifications. However, this variant operates within a narrower supply voltage range (10V to 30V versus 6V to 36V) and is not RoHS compliant, limiting its applicability in regulated environments.

J-FET Input Alternatives (Similar Architecture):

The LF444ACN/NOPB and LF444CN/NOPB from Texas Instruments are active J-FET input amplifiers with 4 circuits in 14-DIP packaging. These devices feature superior input bias current performance (10 pA versus 30 pA) and are ROHS3 compliant. However, they exhibit reduced slew rate (1V/µs versus 3.5V/µs) and different supply voltage specifications. The LF444CN/NOPB is recommended over LF444ACN/NOPB due to higher inventory availability (16,259 units versus 2,200 units) and active product status.

General Purpose Alternatives (Different Architecture):

The LM2902N/NOPB from Texas Instruments is an active general-purpose operational amplifier with 4 circuits in 14-DIP packaging and ROHS3 compliance. This device operates across 3V to 32V supply range with extended temperature range (-40°C to 85°C). The LM2902N/NOPB employs a different input architecture (not J-FET) resulting in higher input bias current (45 nA) and lower slew rate characteristics. This alternative is suitable for applications where J-FET input performance is not critical.

The LM224N from STMicroelectronics provides general-purpose amplification with extended temperature range (-40°C to 105°C) and ROHS3 compliance. This device operates across 3V to 30V supply range with 20 nA input bias current and 0.4V/µs slew rate.

Compliance and Availability Considerations:

For applications requiring RoHS3 compliance and active product status, the LF444CN/NOPB and LM2902N/NOPB are the only active alternatives. The LF444CN/NOPB maintains J-FET input architecture while the LM2902N/NOPB provides general-purpose amplification. All other alternatives are classified as obsolete products.

Frequently Asked Questions (FAQ)

Q: Can the TL064IN be used as a direct replacement for the TL064ACN?

A: Yes. The TL064IN maintains identical electrical specifications including J-FET input architecture, slew rate (3.5V/µs), gain bandwidth product (1 MHz), input bias current (30 pA), and 14-DIP packaging. The TL064IN extends the operating temperature range to -40°C to 105°C, providing enhanced performance for wider environmental conditions. Both devices are ROHS3 compliant.

Q: What is the primary difference between the TL064ACN and LF444CN/NOPB?

A: Both devices are J-FET input amplifiers with 4 circuits in 14-DIP packaging. The TL064ACN operates at 3.5V/µs slew rate with 30 pA input bias current and 6V to 36V supply range. The LF444CN/NOPB operates at 1V/µs slew rate with 10 pA input bias current and 36V supply specification. The LF444CN/NOPB is an active product while the TL064ACN is obsolete.

Q: Can general-purpose amplifiers like the LM2902N/NOPB replace the TL064ACN?

A: General-purpose amplifiers employ different input architectures and exhibit different electrical characteristics. The LM2902N/NOPB features 45 nA input bias current (versus 30 pA for TL064ACN) and 0.4V/µs slew rate (versus 3.5V/µs). These devices are suitable for applications where J-FET input performance and high slew rate are not critical requirements. The LM2902N/NOPB is an active product with ROHS3 compliance and extended temperature range.

Q: What packaging considerations apply to TL064ACN substitutes?

A: All recommended substitutes maintain the 14-DIP (0.300", 7.62mm) through-hole package configuration, ensuring mechanical compatibility with existing PCB layouts and socket configurations. No package conversion or adapter components are required.

Q: Which substitute offers the best availability and compliance status?

A: The LM2902N/NOPB from Texas Instruments offers the highest inventory availability (19,859 units) combined with active product status and ROHS3 compliance. For J-FET input architecture specifically, the LF444CN/NOPB provides active product status with 16,259 units in inventory and ROHS3 compliance.

Q: Are there supply voltage compatibility issues with substitute parts?

A: The TL064ACN operates across 6V to 36V. The TL064IN maintains this range. The LF444CN/NOPB operates at fixed 36V supply. The LM2902N/NOPB operates across 3V to 32V. Applications requiring the full 6V to 36V range must use the TL064IN. Applications operating within 3V to 32V range can use the LM2902N/NOPB.

Q: What is the significance of the J-FET input architecture?

A: J-FET input amplifiers provide extremely low input bias current (30 pA for TL064ACN, 10 pA for LF444CN/NOPB) compared to general-purpose amplifiers (20 nA to 45 nA). This characteristic is critical for high-impedance signal sources and precision measurement applications. General-purpose alternatives are suitable only when input bias current specifications are not restrictive.

Q: How does slew rate affect substitute selection?

A: The TL064ACN operates at 3.5V/µs slew rate, enabling faster signal transitions. The LF444CN/NOPB operates at 1V/µs, limiting transient response speed. General-purpose alternatives operate at 0.4V/µs to 0.5V/µs. Applications requiring high-speed signal processing must use the TL064IN or TL064ACN. Lower slew rate alternatives are suitable for low-frequency applications.

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