TL072ACN Equivalent & Substitute Parts

Part Overview

The TL072ACN is a J-FET input operational amplifier featuring dual circuits in an 8-Mini DIP through-hole package, manufactured by STMicroelectronics. This device is classified as obsolete, though 721 pieces remain in stock as new original inventory. The TL072ACN is qualified to AEC-Q100 automotive standards and operates across a supply voltage range of 6V to 36V with a slew rate of 16V/µs and gain bandwidth product of 4 MHz. Due to its obsolete status, identifying equivalent and substitute parts is necessary for design continuity, long-term availability, and production planning in applications requiring J-FET amplifier functionality.

Key Parameters

Parameter	Value	Unit
Amplifier Type	J-FET	—
Number of Circuits	2	—
Slew Rate	16	V/µs
Gain Bandwidth Product	4	MHz
Current - Input Bias	20	pA
Voltage - Input Offset	6	mV
Current - Supply	1.4	mA
Current - Output / Channel	40	mA
Voltage - Supply Span (Min)	6	V
Voltage - Supply Span (Max)	36	V
Operating Temperature	0 to 70	°C
Package / Case	8-DIP (0.300", 7.62mm)	—
Mounting Type	Through Hole	—
Grade	Automotive	—
Qualification	AEC-Q100	—

Substitute Part Grouping Explanation

Substitution of the TL072ACN is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:

Critical Parameters for Substitution:

Amplifier Type: J-FET (low input bias current, high input impedance)
Number of Circuits: 2 (dual-channel configuration)
Package / Case: 8-DIP through-hole form factor
Slew Rate: 16V/µs or greater
Gain Bandwidth Product: 4 MHz or greater
Supply Voltage Range: Minimum 6V, Maximum 36V
Operating Temperature: 0°C to 70°C minimum
Compliance: ROHS3, AEC-Q100 automotive qualification

Direct Equivalent: The TL072ACDT is a direct functional equivalent manufactured by STMicroelectronics with identical electrical specifications. It differs only in packaging format (8-SOIC surface mount versus 8-Mini DIP through hole) and product status (active versus obsolete).

Similar Substitutes: Parts listed as similar substitutes meet the core functional requirements (J-FET dual-channel amplifiers in 8-DIP packages) but exhibit variations in secondary electrical parameters such as input offset voltage, input bias current, slew rate, or supply current. These variations remain within acceptable ranges for most applications requiring J-FET amplifier functionality.

Parameter Comparison

Parameter	TL072ACN	TL072ACDT	AD648JNZ	AD648KNZ	AD712JNZ	AD712KNZ	LF353N/NOPB
Manufacturer	STMicroelectronics	STMicroelectronics	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Texas Instruments
Amplifier Type	J-FET	J-FET	J-FET	J-FET	J-FET	J-FET	J-FET
Number of Circuits	2	2	2	2	2	2	2
Slew Rate (V/µs)	16	16	1.8	1.8	20	20	13
Gain Bandwidth Product (MHz)	4	4	1	1	4	4	4
Current - Input Bias (pA)	20	20	5	3	25	25	50
Voltage - Input Offset (mV)	6	3	0.75	0.3	0.3	0.3	5
Current - Supply (mA)	1.4	1.4	0.34	0.34	5	5	3.6
Current - Output / Channel (mA)	40	40	15	15	25	25	Not specified
Voltage - Supply Span (Min)	6 V	6 V	9 V	9 V	9 V	9 V	10 V
Voltage - Supply Span (Max)	36 V	36 V	36 V	36 V	36 V	36 V	36 V
Operating Temperature	0 to 70°C	0 to 70°C	0 to 70°C	0 to 70°C	0 to 70°C	0 to 70°C	0 to 70°C
Package / Case	8-DIP	8-SOIC	8-DIP	8-DIP	8-DIP	8-DIP	8-DIP
Mounting Type	Through Hole	Surface Mount	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
Qualification	AEC-Q100	AEC-Q100	Not specified	Not specified	Not specified	Not specified	Not specified

Engineering Selection Recommendations

Direct Replacement (Same Electrical Performance): The TL072ACDT is the primary direct equivalent, offering identical electrical specifications and AEC-Q100 automotive qualification. The only difference is packaging format: TL072ACDT uses 8-SOIC surface mount, while TL072ACN uses 8-Mini DIP through hole. Selection between these depends on PCB assembly capability and design requirements.

Active Product Alternatives (J-FET Dual Amplifiers): For applications requiring through-hole 8-DIP packages with J-FET amplifier topology, the following active products are available:

AD648JNZ and AD648KNZ (Analog Devices): Offer lower input bias current (5 pA and 3 pA respectively) and superior input offset voltage (750 µV and 300 µV). However, these parts exhibit reduced slew rate (1.8V/µs) and gain bandwidth product (1 MHz), making them unsuitable for high-speed applications. Minimum supply voltage is 9V, incompatible with 6V supply designs.
AD712JNZ and AD712KNZ (Analog Devices): Provide enhanced slew rate (20V/µs) and maintain 4 MHz gain bandwidth product. Input bias current (25 pA) and input offset voltage (300 µV) are acceptable for most applications. Minimum supply voltage is 9V. These parts are suitable for applications requiring higher slew rate performance than TL072ACN.
LF353N/NOPB (Texas Instruments): Delivers 4 MHz gain bandwidth product and 13V/µs slew rate with 50 pA input bias current. Supply voltage range is 10V to 36V, incompatible with 6V supply designs. This part is suitable for 10V and higher supply applications.

Compliance and Qualification: Only TL072ACN and TL072ACDT carry AEC-Q100 automotive qualification. Applications requiring automotive-grade components must use one of these two parts. Alternative parts from Analog Devices and Texas Instruments do not specify AEC-Q100 qualification and are not suitable for automotive applications requiring this certification.

Product Status Consideration: TL072ACN is obsolete with limited inventory (721 pieces). For new designs or long-term production, TL072ACDT (active status) or alternative active J-FET amplifiers are recommended to ensure supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can I use TL072ACDT as a direct replacement for TL072ACN?

A: TL072ACDT is electrically equivalent to TL072ACN with identical performance specifications and AEC-Q100 qualification. The difference is packaging: TL072ACDT is 8-SOIC surface mount, while TL072ACN is 8-Mini DIP through hole. Direct PCB substitution requires compatible footprints. Both parts are manufactured by STMicroelectronics and maintain the same electrical characteristics.

Q: Why do AD648 and LF353 parts have different minimum supply voltages?

A: AD648JNZ and AD648KNZ require minimum 9V supply, while LF353N/NOPB requires minimum 10V supply. TL072ACN operates at 6V minimum. These differences reflect design variations in the amplifier architecture. Applications designed for 6V supply cannot use these alternatives without circuit redesign.

Q: Are the Analog Devices AD712 parts suitable replacements for high-speed applications?

A: AD712JNZ and AD712KNZ offer 20V/µs slew rate, exceeding TL072ACN's 16V/µs. Both maintain 4 MHz gain bandwidth product. These parts are suitable for applications requiring higher slew rate performance. However, minimum supply voltage is 9V, incompatible with 6V designs.

Q: What is the significance of input bias current differences between these parts?

A: Input bias current ranges from 3 pA (AD648KNZ) to 50 pA (LF353N/NOPB), compared to TL072ACN's 20 pA. Lower input bias current reduces input offset current errors and is beneficial in high-impedance circuits. Higher input bias current may require input bias current compensation in precision applications. Selection depends on circuit requirements.

Q: Can I use general-purpose amplifiers as substitutes for TL072ACN?

A: No. TL072ACN is a J-FET amplifier with specific input characteristics (20 pA input bias current, high input impedance). General-purpose amplifiers have different input stages and cannot provide equivalent performance. Only J-FET amplifier types listed in this document are suitable substitutes.

Q: Why is AEC-Q100 qualification important for my application?

A: AEC-Q100 qualification indicates the component meets automotive industry reliability and quality standards. Only TL072ACN and TL072ACDT carry this certification. Applications requiring automotive-grade components must use one of these two parts. Alternative parts do not specify AEC-Q100 qualification.

Q: What is the difference between TL072ACN and TL072ACDT in terms of availability?

A: TL072ACN is obsolete with 721 pieces in stock. TL072ACDT is active product with 6546 pieces in stock. For new designs or production requiring long-term supply assurance, TL072ACDT is the recommended choice. Both parts are electrically identical.

Q: Can I substitute parts with different output current ratings?

A: Output current capability varies across alternatives: TL072ACN provides 40 mA per channel, while AD648 parts provide 15 mA per channel, and AD712 parts provide 25 mA per channel. Selection depends on load requirements. Applications requiring 40 mA output current cannot use AD648 parts without circuit modification.

Q: What packaging options are available for J-FET dual amplifiers?

A: TL072ACN uses 8-Mini DIP through-hole package. TL072ACDT uses 8-SOIC surface mount. All other listed alternatives use 8-DIP through-hole packages. Package selection depends on PCB assembly process and design requirements. Through-hole packages are compatible with each other; surface mount requires different PCB footprints.

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