TL072ACD Equivalent & Substitute Parts

Part Overview

The TL072ACD is a J-FET input operational amplifier manufactured by STMicroelectronics, configured as a dual-channel (2 circuit) device in an 8-SOIC surface mount package. This part is classified as obsolete, though 1,708 units remain in current inventory as new original stock. The TL072ACD is qualified to AEC-Q100 automotive standards and operates across a supply voltage range of 6V to 36V with an operating temperature range of 0°C to 70°C. Due to its obsolete status, identification of equivalent and substitute parts is necessary for ongoing design support, production continuity, and long-term component availability assurance.

Key Parameters

Parameter	Value
Amplifier Type	J-FET
Number of Circuits	2
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Slew Rate	16 V/µs
Gain Bandwidth Product	3 MHz
Current - Input Bias	20 pA
Voltage - Input Offset	3 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°C ~ 70°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TL072ACD is determined by strict alignment of electrical and mechanical parameters within the operational amplifier category. The primary substitution criteria are:

Mandatory Matching Parameters:

Amplifier Type: J-FET input configuration
Number of Circuits: Dual-channel (2 circuit) configuration
Package / Case: 8-SOIC form factor (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Voltage - Supply Span: Minimum 6V to Maximum 36V compatibility
Operating Temperature: 0°C to 70°C minimum coverage
RoHS Compliance: ROHS3 Compliant status

Performance Parameters Considered:

Slew Rate: 16 V/µs baseline
Gain Bandwidth Product: 3 MHz baseline
Current - Input Bias: 20 pA baseline
Voltage - Input Offset: 3 mV baseline
Current - Supply: 1.4 mA baseline
Current - Output / Channel: 40 mA baseline

Substitute parts are grouped into two categories: J-FET Input Amplifiers (AD648 series variants) which maintain J-FET input topology, and General Purpose Amplifiers (AD706 series variants) which offer alternative amplifier architecture while maintaining dual-channel 8-SOIC packaging and supply voltage compatibility.

Parameter Comparison

Parameter	TL072ACD	AD648JRZ	AD648JRZ-REEL	AD648JRZ-REEL7	AD648KRZ	AD706ARZ	AD706ARZ-REEL	AD706ARZ-REEL7	AD706JRZ	AD706JRZ-REEL	AD706JRZ-REEL7
Manufacturer	STMicroelectronics	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.
Amplifier Type	J-FET	J-FET	J-FET	J-FET	J-FET	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose
Number of Circuits	2	2	2	2	2	2	2	2	2	2	2
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Slew Rate	16 V/µs	1.8 V/µs	1.8 V/µs	1.8 V/µs	1.8 V/µs	0.15 V/µs	0.15 V/µs	0.15 V/µs	0.15 V/µs	0.15 V/µs	0.15 V/µs
Gain Bandwidth Product	3 MHz	1 MHz	1 MHz	1 MHz	1 MHz	800 kHz	800 kHz	800 kHz	800 kHz	800 kHz	800 kHz
Current - Input Bias	20 pA	5 pA	5 pA	5 pA	3 pA	50 pA	50 pA	50 pA	50 pA	50 pA	50 pA
Voltage - Input Offset	3 mV	750 µV	750 µV	750 µV	300 µV	30 µV	30 µV	30 µV	30 µV	30 µV	30 µV
Current - Supply	1.4 mA	340 µA (x2 Channels)	340 µA (x2 Channels)	340 µA (x2 Channels)	340 µA (x2 Channels)	750 µA	750 µA	750 µA	750 µA	750 µA	750 µA
Current - Output / Channel	40 mA	15 mA	15 mA	15 mA	15 mA	15 mA	15 mA	15 mA	15 mA	15 mA	15 mA
Voltage - Supply Span (Min)	6 V	9 V	9 V	9 V	9 V	4 V	4 V	4 V	4 V	4 V	4 V
Voltage - Supply Span (Max)	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V	36 V
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

J-FET Input Amplifier Substitutes (AD648 Series)

The AD648 series variants (AD648JRZ, AD648JRZ-REEL, AD648JRZ-REEL7, AD648KRZ) maintain J-FET input topology identical to the TL072ACD, ensuring preservation of input impedance characteristics and bias current performance. All AD648 variants are manufactured by Analog Devices Inc. and carry active product status with ROHS3 compliance and MSL 1 rating.

AD648JRZ, AD648JRZ-REEL, AD648JRZ-REEL7: These three variants are electrically identical, differing only in packaging format (Tube, Cut Tape, and Cut Tape & Digi-Reel respectively). All feature 5 pA input bias current, 750 µV input offset voltage, and 1 MHz gain bandwidth product. Minimum supply voltage is 9V, which exceeds the TL072ACD minimum of 6V. These parts are suitable for applications where the higher minimum supply voltage does not present a constraint.

AD648KRZ: This variant offers superior input offset voltage specification of 300 µV compared to 750 µV in other AD648 variants, with input bias current of 3 pA. Minimum supply voltage remains 9V. This part is appropriate for applications requiring tighter input offset voltage tolerance.

All AD648 variants operate within the 0°C to 70°C temperature range matching the TL072ACD and support the full 36V maximum supply voltage. Current supply consumption is significantly lower at 340 µA per dual-channel configuration compared to the TL072ACD at 1.4 mA, resulting in reduced power dissipation. Output current per channel is reduced to 15 mA from the TL072ACD specification of 40 mA.

General Purpose Amplifier Substitutes (AD706 Series)

The AD706 series variants (AD706ARZ, AD706ARZ-REEL, AD706ARZ-REEL7, AD706JRZ, AD706JRZ-REEL, AD706JRZ-REEL7) employ general purpose amplifier architecture rather than J-FET input topology. These parts are manufactured by Analog Devices Inc. with active product status, ROHS3 compliance, and MSL 1 rating.

AD706ARZ, AD706ARZ-REEL, AD706ARZ-REEL7: These variants are electrically identical, differing in packaging format (Tube and Cut Tape & Digi-Reel variants). All feature 50 pA input bias current, 30 µV input offset voltage, and 800 kHz gain bandwidth product. Operating temperature range extends to -40°C to 85°C, providing broader temperature coverage than the TL072ACD. Minimum supply voltage is 4V, which is lower than the TL072ACD requirement of 6V. These parts are suitable for applications operating at lower supply voltages and extended temperature ranges.

AD706JRZ, AD706JRZ-REEL, AD706JRZ-REEL7: These variants are electrically identical to the AD706ARZ series, differing only in packaging format (Tube and Cut Tape & Digi-Reel variants). Operating temperature range is 0°C to 70°C, matching the TL072ACD specification. Minimum supply voltage is 4V. These parts are appropriate for applications requiring the same temperature range as the TL072ACD with lower minimum supply voltage capability.

All AD706 variants support the full 36V maximum supply voltage. Current supply consumption is 750 µA, lower than the TL072ACD at 1.4 mA. Output current per channel is 15 mA. Slew rate is 0.15 V/µs and gain bandwidth product is 800 kHz, both significantly lower than the TL072ACD specifications of 16 V/µs and 3 MHz respectively.

Selection Criteria Summary

For J-FET input topology preservation: Select from AD648 series variants. These maintain the J-FET input architecture of the TL072ACD with superior input bias current performance (3-5 pA vs. 20 pA) and lower supply current consumption. Constraint: minimum supply voltage of 9V.

For extended temperature range: Select AD706ARZ, AD706ARZ-REEL, or AD706ARZ-REEL7, which operate from -40°C to 85°C and support minimum supply voltage of 4V.

For matching temperature range with lower minimum supply voltage: Select AD706JRZ, AD706JRZ-REEL, or AD706JRZ-REEL7, which operate 0°C to 70°C with 4V minimum supply voltage.

For lowest input offset voltage: Select AD648KRZ (300 µV) or AD706 series variants (30 µV).

All substitute parts are ROHS3 compliant with MSL 1 rating, matching the TL072ACD compliance profile.

Frequently Asked Questions (FAQ)

Q: Can the AD648 series directly replace the TL072ACD in all applications?

A: AD648 series variants maintain J-FET input topology and dual-channel 8-SOIC packaging identical to the TL072ACD. However, the minimum supply voltage requirement of 9V must be verified against your application's power supply specification. The TL072ACD operates from 6V minimum, while AD648 variants require 9V minimum. If your application operates at 6V to 8.9V supply voltage, AD648 substitution is not suitable. Additionally, output current per channel is reduced from 40 mA to 15 mA, which must be evaluated for load-driving capability.

Q: What is the primary difference between AD648 and AD706 series substitutes?

A: The AD648 series maintains J-FET input amplifier architecture matching the TL072ACD topology, while the AD706 series employs general purpose amplifier architecture. J-FET input amplifiers (AD648) provide extremely low input bias current (3-5 pA) and high input impedance, suitable for high-impedance signal sources. General purpose amplifiers (AD706) provide lower input offset voltage (30 µV vs. 750 µV in AD648) and extended temperature range options, suitable for precision DC applications and broader environmental conditions.

Q: Are all AD648 and AD706 variants electrically interchangeable within their respective series?

A: Yes, within each series, variants are electrically identical. The suffixes indicate packaging format only: standard Tube packaging, Cut Tape (CT), or Cut Tape & Digi-Reel format. Electrical performance, pin configuration, and functional characteristics are identical across these packaging variants. Selection should be based on your procurement and assembly process requirements.

Q: What is the impact of lower slew rate in AD706 substitutes?

A: The TL072ACD specifies 16 V/µs slew rate, while AD706 variants specify 0.15 V/µs. Slew rate determines the maximum rate of voltage change at the output. Lower slew rate limits the maximum frequency and amplitude of output signals before distortion occurs. For audio and precision measurement applications operating at lower frequencies, this difference may not be significant. For high-frequency or high-speed signal processing applications, the reduced slew rate of AD706 variants may introduce limitations.

Q: Can I use AD706 variants in applications originally designed for TL072ACD?

A: AD706 variants are suitable for applications where the lower gain bandwidth product (800 kHz vs. 3 MHz), lower slew rate (0.15 V/µs vs. 16 V/µs), and different amplifier architecture do not conflict with circuit requirements. AD706 variants are appropriate for low-frequency precision applications, general-purpose amplification, and applications benefiting from extended temperature range. For high-frequency or high-speed applications, AD706 substitution may not be appropriate.

Q: What is the significance of the minimum supply voltage difference?

A: The TL072ACD operates from 6V minimum supply voltage, while AD648 variants require 9V minimum and AD706 variants operate from 4V minimum. If your application uses a 6V to 8.9V power supply, only AD706 variants are suitable substitutes. If your application uses 9V or higher supply voltage, both AD648 and AD706 variants are suitable from a supply voltage perspective. If your application uses lower than 4V supply voltage, none of these substitutes are suitable.

Q: Are there packaging considerations for surface mount assembly?

A: All substitute parts maintain the 8-SOIC (0.154", 3.90mm Width) surface mount package identical to the TL072ACD. PCB footprint, solder pad layout, and assembly process compatibility are identical. Packaging format variants (Tube, Cut Tape, Digi-Reel) affect component delivery and tape-and-reel specifications for automated assembly, not the physical package dimensions or PCB compatibility.

Q: How do input bias current specifications affect circuit design?

A: The TL072ACD specifies 20 pA input bias current. AD648 variants specify 3-5 pA, providing superior performance. AD706 variants specify 50 pA, which is higher. Input bias current flows into the amplifier inputs and can cause offset voltage errors in high-impedance circuits. Lower input bias current (AD648) is advantageous for high-impedance signal sources. Higher input bias current (AD706) requires careful input impedance management but is acceptable for most general-purpose applications.

Q: What does ROHS3 compliance and MSL 1 rating indicate?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead and other hazardous materials. All substitute parts maintain ROHS3 compliance matching the TL072ACD. MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture control requirements, the most favorable rating. All substitute parts carry MSL 1 rating, indicating no special moisture handling or baking procedures are required before assembly.

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