TL084BIN Equivalent & Substitute Parts

Part Overview

The TL084BIN is a J-FET input operational amplifier featuring four independent circuits in a 14-DIP package, manufactured by STMicroelectronics. This device is classified as obsolete, though 2,100 units remain in stock as new original inventory. The TL084BIN is qualified to AEC-Q100 automotive standards and operates across a wide supply voltage range of 6V to 36V with an operating temperature range of -40°C to 105°C.

Due to its obsolete product status, identifying equivalent and substitute parts is necessary for design continuity, long-term availability assurance, and supply chain planning. Substitute parts must maintain functional compatibility while meeting the electrical and mechanical requirements of the original application.

Key Parameters

Parameter	TL084BIN Value	Unit
Amplifier Type	J-FET	—
Number of Circuits	4	—
Package / Case	14-DIP (0.300", 7.62mm)	—
Mounting Type	Through Hole	—
Slew Rate	16	V/µs
Gain Bandwidth Product	4	MHz
Current - Input Bias	20	pA
Voltage - Input Offset	1	mV
Current - Supply	1.4 (x4 Channels)	mA
Current - Output / Channel	40	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

Substitution of the TL084BIN is determined by strict adherence to the following criteria:

Primary Substitution Criteria:

Amplifier Type: J-FET (maintains input impedance and bias current characteristics)
Number of Circuits: 4 (functional equivalence)
Package / Case: 14-DIP (0.300", 7.62mm) (mechanical and pin compatibility)
Mounting Type: Through Hole (assembly compatibility)

Secondary Electrical Parameters for Compatibility Assessment:

Slew Rate: 16 V/µs (minimum acceptable performance)
Gain Bandwidth Product: 4 MHz (frequency response capability)
Current - Input Bias: 20 pA (input stage performance)
Voltage - Input Offset: 1 mV (DC accuracy)
Current - Supply: 1.4 mA per channel (power consumption)
Current - Output / Channel: 40 mA (output drive capability)
Voltage - Supply Span: 6V to 36V (operating range)
Operating Temperature: -40°C to 105°C (environmental range)

Substitute parts are grouped into two categories:

Category A - Direct J-FET Substitutes: Parts maintaining J-FET amplifier topology with equivalent or superior electrical performance across all key parameters.

Category B - Functional Alternatives: Parts with different amplifier topology (General Purpose) that maintain 4-circuit configuration and 14-DIP package but may have different electrical characteristics requiring application-level verification.

Parameter Comparison

Parameter	TL084BIN	AD713JNZ	LT1058CN#PBF	OP482GPZ	LF444CN/NOPB	LM2900N	LM324AN/NOPB
Amplifier Type	J-FET	J-FET	J-FET	J-FET	J-FET	General Purpose	General Purpose
Number of Circuits	4	4	4	4	4	4	4
Package / Case	14-DIP	14-DIP	14-DIP	14-DIP	14-DIP	14-DIP	14-DIP
Slew Rate (V/µs)	16	20	13	9	1	20	—
Gain Bandwidth Product (MHz)	4	4	5	4	1	2.5	1
Current - Input Bias (pA)	20	10	7	3	10	30 nA	45 nA
Voltage - Input Offset (mV)	1	0.3	0.25	0.2	3	—	2
Current - Supply (mA)	1.4	10	1.7	0.21	0.6	6.2	1.5
Current - Output / Channel (mA)	40	25	—	10	14	18	40
Voltage - Supply Span Min (V)	6	9	20	9	36	4.4	3
Voltage - Supply Span Max (V)	36	36	36	36	36	32	32
Operating Temperature (°C)	-40 to 105	0 to 70	0 to 70	-40 to 85	0 to 70	-40 to 85	0 to 70
Product Status	Obsolete	Active	Active	Active	Active	Last Time Buy	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Category A - Direct J-FET Substitutes (Recommended Priority Order)

1. AD713JNZ (Analog Devices Inc.)

Product Status: Active
Maintains J-FET amplifier topology with 4 circuits in 14-DIP package
Superior input bias current (10 pA vs. 20 pA) and input offset voltage (300 µV vs. 1 mV)
Higher slew rate (20 V/µs vs. 16 V/µs) and equivalent gain bandwidth product (4 MHz)
Operating temperature range 0°C to 70°C is narrower than TL084BIN (-40°C to 105°C)
Supply voltage range 9V to 36V requires minimum 9V supply (vs. 6V for TL084BIN)
Inventory: 2,463 units available
Suitable for applications not requiring extended temperature range or low-voltage operation

2. LT1058CN#PBF (Analog Devices Inc.)

Product Status: Active
J-FET amplifier with 4 circuits in 14-DIP package
Excellent input bias current (7 pA) and input offset voltage (250 µV)
Higher gain bandwidth product (5 MHz vs. 4 MHz)
Lower slew rate (13 V/µs vs. 16 V/µs)
Operating temperature range 0°C to 70°C is narrower than TL084BIN
Supply voltage range 20V to 36V requires minimum 20V supply
Inventory: 2,588 units available
Suitable for precision applications with adequate supply voltage

3. OP482GPZ (Analog Devices Inc.)

Product Status: Active
J-FET amplifier with 4 circuits in 14-DIP package
Exceptional input bias current (3 pA) and input offset voltage (200 µV)
Equivalent gain bandwidth product (4 MHz)
Lower slew rate (9 V/µs vs. 16 V/µs)
Extended operating temperature range (-40°C to 85°C) approaches TL084BIN range
Supply voltage range 9V to 36V
Lowest supply current (210 µA per channel vs. 1.4 mA)
Inventory: 1,372 units available
Suitable for low-power, precision applications with extended temperature requirements

Category B - Functional Alternatives (General Purpose Amplifiers)

4. LF444CN/NOPB (Texas Instruments)

Product Status: Active
J-FET amplifier with 4 circuits in 14-DIP package
Significantly lower slew rate (1 V/µs vs. 16 V/µs) and gain bandwidth product (1 MHz vs. 4 MHz)
Fixed supply voltage requirement (36V only)
Inventory: 16,259 units available
Suitable only for low-frequency applications where reduced performance is acceptable

5. LM2900N (Texas Instruments)

Product Status: Last Time Buy
General Purpose amplifier topology (not J-FET)
Higher input bias current (30 nA vs. 20 pA)
Slew rate 20 V/µs and gain bandwidth product 2.5 MHz
Extended operating temperature range (-40°C to 85°C)
Supply voltage range 4.4V to 32V
Inventory: 2,785 units available
Suitable for general-purpose applications where J-FET input characteristics are not critical

6. LM324AN/NOPB (Texas Instruments)

Product Status: Active
General Purpose amplifier topology (not J-FET)
Lowest supply voltage minimum (3V)
Equivalent output current (40 mA per channel)
Operating temperature range 0°C to 70°C
Inventory: 2,514 units available
Suitable for low-voltage applications where J-FET input characteristics are not required

All substitute parts are ROHS3 compliant and have Moisture Sensitivity Level 1 (Unlimited), matching the TL084BIN compliance profile.

Frequently Asked Questions (FAQ)

Q1: Can I directly replace TL084BIN with AD713JNZ in my circuit?

A: AD713JNZ is mechanically and functionally compatible as a direct replacement in terms of pinout and 4-circuit configuration. However, the operating temperature range differs: AD713JNZ operates 0°C to 70°C while TL084BIN operates -40°C to 105°C. Additionally, AD713JNZ requires a minimum supply voltage of 9V compared to 6V for TL084BIN. Verify your application's temperature and supply voltage requirements before substitution.

Q2: What is the primary difference between J-FET and General Purpose amplifier substitutes?

A: J-FET input amplifiers (AD713JNZ, LT1058CN#PBF, OP482GPZ, LF444CN/NOPB) feature extremely low input bias currents (measured in picoamperes) and high input impedance, making them suitable for high-impedance signal sources and precision measurement applications. General Purpose amplifiers (LM2900N, LM324AN/NOPB) have higher input bias currents (measured in nanoamperes) and are optimized for general-purpose signal processing. Select based on your input impedance and bias current requirements.

Q3: Why does OP482GPZ have such low supply current compared to TL084BIN?

A: OP482GPZ is specifically designed for low-power applications with a supply current of 210 µA per channel versus 1.4 mA per channel for TL084BIN. This represents a 6.7x reduction in power consumption. This lower current consumption comes with trade-offs in slew rate (9 V/µs vs. 16 V/µs) and output current capability (10 mA vs. 40 mA per channel). Select OP482GPZ only if your application prioritizes power efficiency over high-speed or high-current output requirements.

Q4: Can I use LF444CN/NOPB as a substitute for high-frequency applications?

A: No. LF444CN/NOPB has a gain bandwidth product of only 1 MHz and slew rate of 1 V/µs, compared to TL084BIN's 4 MHz and 16 V/µs respectively. This makes LF444CN/NOPB unsuitable for applications requiring bandwidth above 1 MHz or fast signal transitions. For high-frequency applications, use AD713JNZ, LT1058CN#PBF, or OP482GPZ instead.

Q5: What does "Last Time Buy" status mean for LM2900N?

A: "Last Time Buy" indicates that LM2900N is in the final phase of its product lifecycle. Texas Instruments will discontinue this part after a specified date, and no new production will occur after that point. While currently available (2,785 units in stock), long-term availability is not guaranteed. For new designs, select parts with "Active" product status such as AD713JNZ, LT1058CN#PBF, or OP482GPZ.

Q6: Are all substitute parts RoHS3 compliant like the TL084BIN?

A: Yes. All substitute parts listed (AD713JNZ, LT1058CN#PBF, OP482GPZ, LF444CN/NOPB, LM2900N, LM324AN/NOPB) are ROHS3 compliant and have Moisture Sensitivity Level 1 (Unlimited), matching the environmental and regulatory compliance profile of the TL084BIN.

Q7: Which substitute offers the best input offset voltage performance?

A: OP482GPZ provides the lowest input offset voltage at 200 µV, followed by LT1058CN#PBF at 250 µV and AD713JNZ at 300 µV. The TL084BIN has an input offset voltage of 1 mV. For precision DC applications requiring minimal offset drift, OP482GPZ is the optimal choice among J-FET substitutes.

Q8: What is the minimum supply voltage requirement for each substitute?

A: TL084BIN: 6V; AD713JNZ: 9V; LT1058CN#PBF: 20V; OP482GPZ: 9V; LF444CN/NOPB: 36V (fixed); LM2900N: 4.4V; LM324AN/NOPB: 3V. If your application uses a 6V supply, only TL084BIN and LM2900N are compatible. For 9V supplies, AD713JNZ and OP482GPZ become available options.

Q9: Which substitute maintains the widest operating temperature range?

A: OP482GPZ operates from -40°C to 85°C, which is closest to the TL084BIN range of -40°C to 105°C. All other substitutes operate within 0°C to 70°C or 0°C to 85°C ranges. For applications requiring operation below 0°C or above 85°C, OP482GPZ is the only viable substitute.

Q10: Can I use LM324AN/NOPB in automotive applications like the original TL084BIN?

A: LM324AN/NOPB is not qualified to AEC-Q100 automotive standards, unlike the TL084BIN. While mechanically compatible, it is not suitable for automotive applications requiring AEC-Q100 qualification. For automotive-grade substitutes, verify qualification status with the manufacturer or select parts explicitly qualified to AEC-Q100 standards.

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