TL072IDRG4 Equivalent & Substitute Parts

Part Overview

The TL072IDRG4 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 980 pieces remain in new original stock. The TL072IDRG4 is designed for applications requiring low input bias current, low input offset voltage, and moderate bandwidth performance. Due to its obsolete status, identifying active equivalent and substitute parts is essential for design continuity and long-term component availability.

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	mA (x2 Channels)
Voltage - Supply Span (Min)	10	V
Voltage - Supply Span (Max)	30	V
Operating Temperature	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the TL072IDRG4 is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:

Critical Parameters for Substitution:

Amplifier Type: J-FET input architecture
Number of Circuits: 2 independent circuits
Package / Case: 8-SOIC form factor
Mounting Type: Surface Mount
Supply Voltage Range: Minimum 10 V, Maximum 30 V
Operating Temperature Range: Must encompass -40°C to 85°C

Substitute Categories:

Category 1: Direct J-FET Equivalents (Highest Compatibility) Parts maintaining J-FET amplifier type with identical or superior electrical performance within the specified supply and temperature ranges. These include TL072IDR, TL072IDT, TL072BIDT, TL072BIYDT, TL072CDT, and TL082ACDT. All maintain the 8-SOIC package and support the full supply voltage range of 10 V to 30 V.

Category 2: General Purpose Amplifiers (Conditional Substitution) Parts with general purpose amplifier architecture (MC33172D, MC33172DT) that support the required supply voltage range and package form factor. These devices have different input bias current and offset voltage characteristics but maintain 2-circuit configuration and 8-SOIC packaging.

Category 3: Audio Amplifiers (Limited Substitution) The LM833DT is an audio amplifier with 2 circuits in 8-SOIC package. This part operates within the 10 V to 30 V supply range but has different input bias current and offset voltage specifications.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (mV)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Product Status
TL072IDRG4	Texas Instruments	J-FET	13	5.25	65	3	10	30	-40 to 85	Obsolete
TL072IDR	Texas Instruments	J-FET	13	5.25	65	3	10	30	-40 to 85	Active
TL072IDT	STMicroelectronics	J-FET	16	4	20	3	6	36	-40 to 125	Active
TL072BIDT	STMicroelectronics	J-FET	16	4	20	1	6	36	-40 to 125	Active
TL072BIYDT	STMicroelectronics	J-FET	16	4	20	1	6	36	-40 to 125	Active
TL072CDT	STMicroelectronics	J-FET	16	4	20	3	6	36	0 to 70	Active
TL072ACDT	STMicroelectronics	J-FET	16	4	20	3	6	36	0 to 70	Active
TL082ACDT	STMicroelectronics	J-FET	16	4	20	3	6	36	0 to 70	Active
MC33172D	STMicroelectronics	General Purpose	2	2.1	20000	1	4	44	-40 to 105	Active
MC33172DT	STMicroelectronics	General Purpose	2	2.1	20000	1	4	44	-40 to 105	Active
LM833DT	STMicroelectronics	Audio	7	15	300000	0.3	5	30	-40 to 105	Active

Engineering Selection Recommendations

Primary Recommendation: TL072IDR

The TL072IDR is the direct equivalent to the TL072IDRG4. Both parts share identical electrical specifications: J-FET amplifier type, 13 V/µs slew rate, 5.25 MHz gain bandwidth product, 65 pA input bias current, and 3 mV input offset voltage. The TL072IDR operates within the same 10 V to 30 V supply range and -40°C to 85°C temperature range. The TL072IDR is in active production status with 35,200 pieces in stock, providing superior long-term availability compared to the obsolete TL072IDRG4. Packaging is identical: 8-SOIC surface mount. Both parts are ROHS3 compliant with MSL 1 rating.

Secondary Recommendations: TL072IDT, TL072BIDT, TL072BIYDT

These STMicroelectronics J-FET amplifiers maintain the same amplifier type and 2-circuit configuration in 8-SOIC packages. All three parts are in active production. The TL072IDT supports the full -40°C to 125°C temperature range with 55,200 units in stock. The TL072BIDT and TL072BIYDT offer improved input offset voltage (1 mV versus 3 mV) and extended temperature range (-40°C to 125°C). These parts have slightly higher slew rate (16 V/µs) and lower gain bandwidth product (4 MHz) compared to the TL072IDRG4. Supply voltage range is expanded to 6 V to 36 V, providing greater flexibility. All three parts carry AEC-Q100 automotive qualification.

Conditional Recommendations: TL072CDT, TL072ACDT, TL082ACDT

These J-FET amplifiers are suitable for applications with operating temperature requirements limited to 0°C to 70°C. All three maintain J-FET architecture, 2-circuit configuration, and 8-SOIC packaging. The TL072CDT has the highest inventory (203,200 units). These parts feature 16 V/µs slew rate and 4 MHz gain bandwidth product with AEC-Q100 automotive qualification.

Limited Substitution: MC33172D, MC33172DT

These general purpose amplifiers are suitable only when J-FET input characteristics are not critical to circuit performance. Both parts maintain 2-circuit configuration and 8-SOIC packaging with active production status. The MC33172D and MC33172DT have significantly higher input bias current (20 nA versus 65 pA) and lower slew rate (2 V/µs versus 13 V/µs). Supply voltage range extends to 4 V minimum and 44 V maximum. Operating temperature range is -40°C to 105°C.

Not Recommended: LM833DT

The LM833DT audio amplifier is not suitable as a direct substitute. While it maintains 2-circuit configuration and 8-SOIC packaging, it is classified as an audio amplifier rather than J-FET input type. Input bias current is 300 nA, significantly higher than the TL072IDRG4. Slew rate is 7 V/µs and gain bandwidth product is 15 MHz, representing different performance characteristics. Use only when audio amplifier specifications are explicitly required.

Frequently Asked Questions (FAQ)

Q: Can the TL072IDR directly replace the TL072IDRG4 without circuit modification?

A: Yes. The TL072IDR is electrically and mechanically identical to the TL072IDRG4. Both parts have identical slew rate (13 V/µs), gain bandwidth product (5.25 MHz), input bias current (65 pA), input offset voltage (3 mV), supply voltage range (10 V to 30 V), and operating temperature range (-40°C to 85°C). Both use 8-SOIC surface mount packaging. No circuit modification is required.

Q: What is the difference between TL072IDT and TL072BIDT?

A: Both are J-FET amplifiers in 8-SOIC packages with identical slew rate (16 V/µs) and gain bandwidth product (4 MHz). The primary difference is input offset voltage: TL072IDT specifies 3 mV while TL072BIDT specifies 1 mV. Both support -40°C to 125°C operating temperature range and 6 V to 36 V supply voltage range. Both carry AEC-Q100 automotive qualification.

Q: Why is the MC33172D listed as a substitute if it has different electrical characteristics?

A: The MC33172D is listed as a conditional substitute based on package compatibility (8-SOIC, 2 circuits, surface mount) and supply voltage range overlap (4 V to 44 V encompasses the 10 V to 30 V requirement). However, it is a general purpose amplifier, not a J-FET input type. Substitution is valid only when circuit design does not depend on J-FET input characteristics such as low input bias current or high input impedance. Verify circuit performance before implementation.

Q: What does "AEC-Q100 automotive qualification" mean for substitution?

A: AEC-Q100 qualification indicates the part meets automotive industry reliability and quality standards. Parts with this qualification (TL072IDT, TL072BIDT, TL072BIYDT, TL072CDT, TL072ACDT, TL082ACDT) have undergone additional testing and validation. This qualification does not affect electrical substitution compatibility but indicates enhanced reliability for mission-critical applications.

Q: Can I use TL072CDT in a circuit requiring -40°C operation?

A: No. The TL072CDT operating temperature range is 0°C to 70°C. It is not rated for -40°C operation. Use TL072IDT, TL072BIDT, or TL072BIYDT instead, which all support -40°C to 125°C range.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Cut Tape and Tape & Reel are distribution formats, not component formats. Both deliver parts in 8-SOIC surface mount packages. Cut Tape is supplied in smaller quantities on cut tape. Tape & Reel is supplied in continuous reel format for high-volume automated assembly. Electrical and mechanical specifications are identical. Selection depends on production volume and assembly equipment compatibility.

Q: Is the TL072IDRG4 still available for purchase?

A: The TL072IDRG4 is classified as obsolete. While 980 pieces remain in new original stock, no new production is occurring. For new designs or long-term component availability, use active alternatives such as TL072IDR or TL072IDT.

Q: What does "ROHS3 Compliant" mean?

A: ROHS3 (Restriction of Hazardous Substances Directive 3) compliance indicates the part does not contain restricted substances including lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls, or polybrominated diphenyl ethers. All listed substitute parts are ROHS3 compliant.

Q: Can I substitute TL072IDRG4 with LM833DT in an audio preamplifier circuit?

A: The LM833DT is an audio amplifier with different electrical characteristics. While it maintains 2-circuit configuration and 8-SOIC packaging, input bias current is 300 nA (versus 65 pA), slew rate is 7 V/µs (versus 13 V/µs), and gain bandwidth product is 15 MHz (versus 5.25 MHz). Substitution is possible only if circuit design explicitly requires audio amplifier specifications. Verify performance through circuit simulation or prototype testing before production implementation.

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