TL072CDG4 Equivalent & Substitute Parts Reference

Part Overview

The TL072CDG4 is a J-FET input operational amplifier featuring two independent circuits in an 8-SOIC surface mount package, manufactured by Texas Instruments. This device is classified as obsolete, though 2320 pieces remain in new original stock. The TL072CDG4 delivers a slew rate of 13V/µs and gain bandwidth product of 5.25 MHz, with extremely low input bias current of 65 pA, making it suitable for precision analog signal processing applications requiring low noise and high input impedance characteristics.

Due to its obsolete status, identifying equivalent and substitute parts is essential for design continuity, long-term supply chain reliability, and production planning. Active alternatives with compatible electrical and mechanical specifications are available from multiple manufacturers.

Key Parameters

Parameter	Value	Unit
Amplifier Type	J-FET	—
Number of Circuits	2	—
Slew Rate	13	V/µs
Gain Bandwidth Product	5.25	MHz
Current - Input Bias	65	pA
Voltage - Input Offset	3	mV
Current - Supply	1.4 (x2 Channels)	mA
Voltage - Supply Span (Min)	10	V
Voltage - Supply Span (Max)	30	V
Operating Temperature	0 to 70	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the TL072CDG4 is determined by strict alignment of electrical and mechanical parameters within the J-FET amplifier category. The critical substitution criteria are:

Primary Substitution Criteria:

Amplifier Type: J-FET (maintains input impedance and noise characteristics)
Number of Circuits: 2 (dual-channel configuration)
Package / Case: 8-SOIC form factor (mechanical compatibility)
Mounting Type: Surface Mount (PCB assembly compatibility)

Secondary Electrical Compatibility Parameters:

Slew Rate: 13V/µs or higher (performance maintenance)
Gain Bandwidth Product: 5.25 MHz or higher (frequency response)
Current - Input Bias: 65 pA or lower (low-noise operation)
Voltage - Input Offset: 3 mV or lower (precision requirements)
Current - Supply: 1.4 mA per channel or lower (power efficiency)
Voltage - Supply Span: Minimum 10V to Maximum 30V (operating range)
Operating Temperature: 0°C to 70°C or extended range (thermal compatibility)

Substitute parts meeting these criteria maintain functional equivalence for direct replacement in existing designs without circuit modification.

Parameter Comparison

Parameter	TL072CDG4 (Main)	TL072CDR	TL072CDT	TL072ACDT	TL072BIDT	TL072BIYDT	TL072IDT	TL072CD
Manufacturer	Texas Instruments	Texas Instruments	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics
Amplifier Type	J-FET	J-FET	J-FET	J-FET	J-FET	J-FET	J-FET	J-FET
Number of Circuits	2	2	2	2	2	2	2	2
Slew Rate (V/µs)	13	13	16	16	16	16	16	16
Gain Bandwidth Product (MHz)	5.25	5.25	4	4	4	4	4	3
Current - Input Bias (pA)	65	65	20	20	20	20	20	20
Voltage - Input Offset (mV)	3	3	3	3	1	1	3	3
Current - Supply (mA)	1.4	1.4	1.4	1.4	1.4	1.4	1.4	1.4
Voltage - Supply Span Min (V)	10	10	6	6	6	6	6	6
Voltage - Supply Span Max (V)	30	30	36	36	36	36	36	36
Operating Temperature (°C)	0 to 70	0 to 70	0 to 70	0 to 70	-40 to 125	-40 to 125	-40 to 125	0 to 70
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Product Status	Obsolete	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

Engineering Selection Recommendations

Tier 1 - Direct Electrical Equivalents (Highest Compatibility):

TL072CDR (Texas Instruments) and TL072CDG4 share identical electrical specifications: 13V/µs slew rate, 5.25 MHz gain bandwidth product, 65 pA input bias current, and 10V to 30V supply span. TL072CDR is active status with 295,417 pieces in stock, providing superior supply chain continuity compared to the obsolete TL072CDG4. Both devices operate across 0°C to 70°C temperature range and are ROHS3 compliant.

Tier 2 - J-FET Substitutes with Enhanced Performance (Compatible with Design Margin):

TL072CDT, TL072ACDT, TL072BIDT, TL072BIYDT, and TL072IDT are STMicroelectronics J-FET amplifiers in 8-SOIC packages with improved slew rate (16V/µs) and lower input bias current (20 pA). These devices feature expanded supply voltage range (6V to 36V) and are all active status. TL072BIDT and TL072BIYDT offer extended operating temperature (-40°C to 125°C) with AEC-Q100 automotive qualification. TL072CDT provides the largest inventory (203,200 pieces) among STMicroelectronics variants.

Tier 3 - Alternative Amplifier Types (Functional Substitution Only):

MC33172D and MC33172DT are general-purpose operational amplifiers with 2 circuits in 8-SOIC packages. These devices feature significantly lower supply current (220 µA versus 1.4 mA) and extended temperature range (-40°C to 105°C), but operate with different electrical characteristics: 2V/µs slew rate, 2.1 MHz gain bandwidth product, and 20 nA input bias current. These are suitable only when power consumption reduction is prioritized over J-FET input characteristics.

LM833DT is an audio amplifier with 2 circuits in 8-SOIC package, featuring 7V/µs slew rate and 15 MHz gain bandwidth product. This device is not recommended as a direct substitute due to different amplifier classification and higher input bias current (300 nA).

Compliance and Certification:

All recommended substitute parts maintain ROHS3 compliance and MSL Level 1 (unlimited moisture sensitivity). TL072BIDT, TL072BIYDT, TL072ACDT, and TL072IDT carry AEC-Q100 automotive qualification, suitable for applications requiring automotive-grade reliability.

Frequently Asked Questions (FAQ)

Q1: Can TL072CDR directly replace TL072CDG4 without circuit modification?

Yes. TL072CDR is electrically identical to TL072CDG4 with matching slew rate (13V/µs), gain bandwidth product (5.25 MHz), input bias current (65 pA), and supply voltage range (10V to 30V). Both are housed in 8-SOIC surface mount packages. The primary advantage of TL072CDR is active product status with significantly higher inventory availability (295,417 pieces versus 2,320 pieces).

Q2: What is the difference between TL072CDT and TL072CDR?

Both are Texas Instruments TL072 variants with identical electrical specifications. The difference is packaging: TL072CDR is supplied in Cut Tape (CT) & Digi-Reel format, while TL072CDT is supplied by STMicroelectronics in the same format. Electrical performance is equivalent; selection depends on supplier availability and packaging preference.

Q3: Why do STMicroelectronics TL072 variants show different slew rates and gain bandwidth products?

STMicroelectronics TL072CDT, TL072ACDT, TL072BIDT, TL072BIYDT, and TL072IDT represent improved versions of the original TL072 design with enhanced performance: 16V/µs slew rate (versus 13V/µs) and lower input bias current (20 pA versus 65 pA). Gain bandwidth product is reduced to 4 MHz (versus 5.25 MHz), reflecting design optimization for lower noise and improved precision. These are suitable substitutes when enhanced performance margins are acceptable.

Q4: Are MC33172D and MC33172DT suitable replacements for TL072CDG4?

MC33172 devices are general-purpose operational amplifiers, not J-FET input amplifiers. While they share the 8-SOIC package and dual-circuit configuration, they operate with fundamentally different electrical characteristics: 220 µA supply current (versus 1.4 mA), 20 nA input bias current (versus 65 pA), and 2V/µs slew rate (versus 13V/µs). These devices are suitable only for applications where J-FET input characteristics are not required and power consumption reduction is prioritized.

Q5: What is the significance of AEC-Q100 qualification on TL072BIDT and TL072BIYDT?

AEC-Q100 is an automotive industry qualification standard ensuring component reliability under automotive operating conditions. TL072BIDT and TL072BIYDT carry this certification, making them suitable for automotive applications requiring enhanced reliability and temperature range (-40°C to 125°C). Non-automotive variants (TL072CDT, TL072ACDT, TL072IDT) operate across 0°C to 70°C or -40°C to 125°C without automotive qualification.

Q6: Can LM833DT replace TL072CDG4 in audio applications?

LM833DT is classified as an audio amplifier with different electrical characteristics: 7V/µs slew rate, 15 MHz gain bandwidth product, and 300 nA input bias current. While suitable for audio signal processing, it does not maintain the J-FET input characteristics and low input bias current of TL072CDG4. Substitution is not recommended without circuit re-evaluation.

Q7: What packaging options are available for TL072 substitutes?

TL072CDR is supplied in Cut Tape (CT) & Digi-Reel format. TL072CDT, TL072ACDT, TL072BIDT, and TL072IDT are supplied in Cut Tape (CT) & Digi-Reel format. TL072BIYDT is supplied in Tape & Reel (TR) format. TL072CD is supplied in Tube format. All variants use 8-SOIC (0.154", 3.90mm Width) surface mount packages with identical PCB footprints.

Q8: Which substitute offers the best long-term supply chain security?

TL072CDR (Texas Instruments) with 295,417 pieces in stock provides the highest inventory availability. Among STMicroelectronics variants, TL072CDT offers the largest stock (203,200 pieces). Both are active status products, ensuring continued availability and manufacturing support compared to the obsolete TL072CDG4.

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