TL062IN Equivalent & Substitute Parts

Part Overview

The TL062IN is a J-FET input operational amplifier manufactured by STMicroelectronics, configured as a dual-channel (2 circuit) device in an 8-Mini DIP package. This component is classified as obsolete, though 2284 pieces remain available in new original stock. The TL062IN is designed for applications requiring low input bias current and low input offset voltage characteristics typical of J-FET amplifier architectures.

Due to its obsolete product status, identifying equivalent and substitute parts is necessary for ongoing design support, production continuity, and long-term component availability. Substitute parts listed below maintain functional compatibility through matching package geometry, circuit count, and core electrical parameters within acceptable operating ranges.

Key Parameters

Parameter	Value	Unit
Amplifier Type	J-FET	—
Number of Circuits	2	—
Package / Case	8-DIP (0.300", 7.62mm)	—
Mounting Type	Through Hole	—
Slew Rate	3.5	V/µs
Gain Bandwidth Product	1	MHz
Current - Input Bias	30	pA
Voltage - Input Offset	3	mV
Current - Supply	200 (x2 Channels)	µA
Current - Output / Channel	20	mA
Voltage - Supply Span (Min)	6	V
Voltage - Supply Span (Max)	36	V
Operating Temperature	-40 to 105	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the TL062IN are grouped based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

Amplifier Type (J-FET preferred for input bias current matching)
Number of Circuits (2 required)
Package / Case (8-DIP 0.300" form factor required for PCB compatibility)
Mounting Type (Through Hole required)
Voltage Supply Range (minimum 6V to 36V maximum required)

Secondary Compatibility Parameters:

Slew Rate (3.5 V/µs baseline; higher values acceptable)
Gain Bandwidth Product (1 MHz baseline; higher values acceptable)
Current - Input Bias (30 pA baseline; lower values acceptable)
Voltage - Input Offset (3 mV baseline; lower values acceptable)
Operating Temperature Range (must encompass application requirements)

Substitute parts are presented in two categories: J-FET amplifiers (closest functional match) and general-purpose amplifiers (alternative topology). J-FET substitutes maintain the low input bias current characteristic of the original device. General-purpose substitutes offer different performance trade-offs suitable for applications where J-FET input characteristics are not mandatory.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	Gain BW (MHz)	Input Bias (pA)	Input Offset (mV)	Supply Current (µA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Product Status
TL062IN	STMicroelectronics	J-FET	3.5	1	30	3	200	20	6	36	-40 to 105	Obsolete
AD648JNZ	Analog Devices	J-FET	1.8	1	5	0.75	340	15	9	36	0 to 70	Active
AD648KNZ	Analog Devices	J-FET	1.8	1	3	0.3	340	15	9	36	0 to 70	Active
AD706JNZ	Analog Devices	General Purpose	0.15	0.8	50	0.03	750	15	4	36	0 to 70	Active
AD712JNZ	Analog Devices	J-FET	20	—	25	0.3	5000	25	9	36	0 to 70	Active
AD712KNZ	Analog Devices	J-FET	20	—	25	0.3	5000	25	9	36	0 to 70	Active
AD827JNZ	Analog Devices	General Purpose	300	50	3300	0.3	10000	32	9	36	0 to 70	Active
AS358P-E1	Diodes Incorporated	General Purpose	—	—	20000	2	700	40	3	36	-40 to 85	Active
LF353N/NOPB	Texas Instruments	J-FET	13	4	50	5	3600	—	10	36	0 to 70	Active
LF412CN/NOPB	Texas Instruments	J-FET	15	4	50	1	3600	—	10	40	0 to 70	Active
LM258P	Texas Instruments	General Purpose	0.3	0.7	20000	3	500	40	3	32	-25 to 85	Active

Engineering Selection Recommendations

J-FET Amplifier Substitutes (Preferred Category):

The AD648JNZ and AD648KNZ represent the closest functional equivalents to the TL062IN. Both devices maintain J-FET input architecture, dual-channel configuration, and 8-DIP package geometry. The AD648KNZ offers superior input offset voltage (0.3 mV vs. 3 mV) and lower input bias current (3 pA vs. 30 pA). Both are active products with ROHS3 compliance and unlimited moisture sensitivity rating. The minimum supply voltage requirement increases from 6V to 9V; applications operating below 9V require verification of circuit compatibility.

The LF353N/NOPB and LF412CN/NOPB from Texas Instruments provide J-FET input characteristics with higher slew rates (13 V/µs and 15 V/µs respectively) and greater gain bandwidth products (4 MHz). These devices require minimum supply voltages of 10V and 10V respectively. The LF412CN/NOPB offers superior input offset voltage (1 mV) and extended maximum supply voltage (40V). Both are active products with full compliance certifications.

The AD712JNZ and AD712KNZ offer significantly higher slew rates (20 V/µs) and greater output current capability (25 mA), suitable for applications requiring faster transient response. These devices require 9V minimum supply voltage and consume higher supply current (5 mA). Both are active products with ROHS3 compliance.

General-Purpose Amplifier Substitutes (Alternative Category):

The LM258P, AS358P-E1, AD706JNZ, and AD827JNZ employ general-purpose amplifier topology rather than J-FET input architecture. These devices are suitable for applications where input bias current and input offset voltage characteristics are not critical design parameters. The LM258P and AS358P-E1 operate from lower minimum supply voltages (3V), expanding application flexibility. The AD827JNZ provides significantly higher bandwidth (50 MHz) and slew rate (300 V/µs) for high-speed applications.

Compliance and Availability:

All substitute parts listed are active products with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). All devices are available in through-hole 8-DIP package format with current inventory levels ranging from 1102 to 67400 pieces. Selection should prioritize active products to ensure long-term supply chain continuity and manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can the AD648JNZ directly replace the TL062IN without circuit modification?

A: The AD648JNZ maintains identical package geometry (8-DIP), circuit count (2), and amplifier type (J-FET). However, the minimum supply voltage increases from 6V to 9V. Circuits operating at supply voltages below 9V require verification. Pin-to-pin compatibility is maintained for standard operational amplifier configurations.

Q: What is the primary difference between J-FET and general-purpose amplifier substitutes?

A: J-FET amplifiers feature extremely low input bias current (measured in picoamperes) and low input offset voltage, making them suitable for high-impedance signal sources and precision measurement applications. General-purpose amplifiers typically exhibit higher input bias current (measured in nanoamperes) but may offer other performance advantages such as lower supply voltage operation or higher bandwidth. Selection depends on application requirements.

Q: Why does the TL062IN require substitution despite available inventory?

A: The TL062IN is classified as obsolete, indicating that STMicroelectronics has discontinued production and will not provide long-term manufacturing support. While current inventory exists, future availability cannot be guaranteed. Substitution planning ensures design continuity and production reliability for applications with extended product lifecycles.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed in this reference document carry ROHS3 compliance certification. All devices also maintain unlimited moisture sensitivity rating (MSL 1), indicating no special handling requirements during storage or assembly.

Q: What is the impact of higher slew rate in substitute parts?

A: Slew rate determines the maximum rate of change of output voltage. The TL062IN exhibits 3.5 V/µs slew rate. Substitute parts with higher slew rates (such as AD712JNZ at 20 V/µs or AD827JNZ at 300 V/µs) can respond more rapidly to input signal changes. This characteristic is beneficial for high-frequency applications but is not required for low-frequency or DC-coupled circuits. Higher slew rates do not negatively impact applications designed for lower slew rate devices.

Q: Can the LM258P substitute for the TL062IN in all applications?

A: The LM258P maintains identical package geometry and circuit count but employs general-purpose amplifier topology rather than J-FET input architecture. Input bias current increases from 30 pA to 20 nanoamperes (approximately 667 times higher). This substitution is suitable only for applications where input bias current does not significantly affect circuit performance. High-impedance signal conditioning and precision measurement applications may require J-FET input devices.

Q: What supply voltage range is common across all substitute parts?

A: The maximum supply voltage of 36V is common across all J-FET substitutes and most general-purpose substitutes. However, minimum supply voltage varies: the TL062IN operates from 6V minimum, while most substitutes require 9V to 10V minimum. The LM258P and AS358P-E1 operate from 3V minimum, providing the widest supply voltage flexibility.

Q: Are there pin-to-pin compatibility concerns when substituting operational amplifiers?

A: All substitute parts maintain standard 8-DIP operational amplifier pinout configuration. Pin assignments for power supply, input, output, and offset null connections are identical. Standard circuit board layouts designed for 8-DIP dual operational amplifiers accommodate all listed substitute parts without modification. Verify offset null pin usage in specific circuit designs, as not all applications utilize these pins.

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