TL072ACDRG4 Equivalent & Substitute Parts

Part Overview

The TL072ACDRG4 is a J-FET input operational amplifier featuring dual circuits in an 8-SOIC surface mount package, manufactured by Texas Instruments. This device is discontinued at DiGi Electronics but remains available through inventory stock of 934 pieces. The TL072ACDRG4 is designed for applications requiring low input bias current, low input offset voltage, and moderate slew rate performance in a compact form factor.

Due to the discontinued status of the TL072ACDRG4, equivalent substitute parts are necessary to maintain design continuity and ensure long-term component availability for production and repair applications.

Key Parameters

Parameter	Value
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	0°C ~ 70°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TL072ACDRG4 is determined by the following critical parameters:

Primary Substitution Criteria:

Package compatibility: 8-SOIC form factor (0.154", 3.90mm Width)
Number of circuits: 2 dual-channel configuration
Amplifier type: J-FET input topology for low input bias current performance
Supply voltage range: Minimum 10 V to maximum 30 V compatibility
Operating temperature range: 0°C ~ 70°C
Surface mount mounting type

Substitute parts are grouped into two categories:

Category 1 - Direct J-FET Equivalents (Highest Compatibility): TL072ACDR, TL072ACDT, TL072BIDT, TL072BIYDT, and TL072CDT maintain J-FET amplifier topology with identical or superior electrical characteristics. These parts preserve the low input bias current specification (20 pA or lower) and are pin-compatible in 8-SOIC packaging.

Category 2 - General Purpose Amplifier Alternatives (Functional Compatibility): MC33172D, MC33172DT, MC33172VDR2G, and MC34072DR2G provide general purpose amplifier functionality in identical 8-SOIC packaging. These parts offer extended supply voltage ranges and wider operating temperature spans but feature different amplifier topologies and electrical performance characteristics.

Category 3 - Audio Amplifier Alternative (Limited Compatibility): LM833DT is an audio-specific amplifier with different electrical characteristics and should be evaluated only for audio-specific applications requiring its particular performance profile.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA/nA)	Input Offset (mV/µV)	Supply Current	Voltage Supply Min (V)	Voltage Supply Max (V)	Temp Range	Product Status
TL072ACDRG4	Texas Instruments	J-FET	13	5.25	65 pA	3 mV	1.4 mA	10	30	0°C ~ 70°C	Discontinued
TL072ACDR	Texas Instruments	J-FET	13	5.25	65 pA	3 mV	1.4 mA	10	30	0°C ~ 70°C	Active
TL072ACDT	STMicroelectronics	J-FET	16	4	20 pA	3 mV	1.4 mA	6	36	0°C ~ 70°C	Active
TL072BIDT	STMicroelectronics	J-FET	16	4	20 pA	1 mV	1.4 mA	6	36	-40°C ~ 125°C	Active
TL072BIYDT	STMicroelectronics	J-FET	16	4	20 pA	1 mV	1.4 mA	6	36	-40°C ~ 125°C	Active
TL072CDT	STMicroelectronics	J-FET	16	4	20 pA	3 mV	1.4 mA	6	36	0°C ~ 70°C	Active
MC33172D	STMicroelectronics	General Purpose	2	2.1	20 nA	1 mV	220 µA	4	44	-40°C ~ 105°C	Active
MC33172DT	STMicroelectronics	General Purpose	2	2.1	20 nA	1 mV	220 µA	4	44	-40°C ~ 105°C	Active
MC33172VDR2G	onsemi	General Purpose	2.1	1.8	20 nA	2 mV	220 µA	3	44	-40°C ~ 125°C	Active
MC34072DR2G	onsemi	General Purpose	13	4.5	100 nA	1 mV	1.9 mA	3	44	0°C ~ 70°C	Active
LM833DT	STMicroelectronics	Audio	7	15	300 nA	300 µV	4 mA	5	30	-40°C ~ 105°C	Active

Engineering Selection Recommendations

Recommended Primary Substitutes:

TL072ACDR is the optimal substitute for the TL072ACDRG4. This part is manufactured by Texas Instruments, maintains identical electrical specifications, and is currently in active production status with 47,600 pieces in stock. The TL072ACDR provides direct functional equivalence with no design modifications required.

TL072CDT is an alternative J-FET substitute manufactured by STMicroelectronics with superior slew rate (16 V/µs versus 13 V/µs), lower input bias current (20 pA versus 65 pA), and extended supply voltage range (6 V to 36 V). This part is AEC-Q100 qualified for automotive applications and maintains active production status with 203,200 pieces in stock.

Secondary Substitutes for Extended Temperature Range Applications:

TL072BIDT and TL072BIYDT extend the operating temperature range to -40°C ~ 125°C while maintaining J-FET amplifier topology. Both parts feature improved input bias current (20 pA) and reduced input offset voltage (1 mV). TL072BIYDT is supplied in Tape & Reel packaging with 3,600 pieces in stock. TL072BIDT is supplied in Cut Tape packaging with 1,249 pieces in stock.

General Purpose Alternatives:

MC34072DR2G provides slew rate performance (13 V/µs) comparable to the original part with extended supply voltage range (3 V to 44 V) and wider operating temperature span (0°C ~ 70°C). This part is suitable for applications where J-FET input characteristics are not critical.

MC33172 series parts (MC33172D, MC33172DT, MC33172VDR2G) offer extended supply voltage ranges and wider temperature ratings but feature significantly reduced slew rate (2 V/µs to 2.1 V/µs) and gain bandwidth product (1.8 MHz to 2.1 MHz). These parts are suitable only for low-frequency applications.

Not Recommended:

LM833DT is an audio-specific amplifier with substantially different electrical characteristics including higher input bias current (300 nA), higher input offset voltage (300 µV), and higher supply current (4 mA). This part should be selected only for dedicated audio applications.

Frequently Asked Questions (FAQ)

Q: Can TL072ACDR be used as a direct replacement for TL072ACDRG4?

A: Yes. TL072ACDR is manufactured by Texas Instruments and provides identical electrical specifications, package configuration, and pin compatibility. No circuit modifications are required. The primary difference is product status: TL072ACDR is in active production while TL072ACDRG4 is discontinued.

Q: What is the difference between TL072ACDR and TL072CDT?

A: Both are J-FET operational amplifiers in 8-SOIC packaging. TL072ACDR is manufactured by Texas Instruments with specifications matching the original TL072ACDRG4. TL072CDT is manufactured by STMicroelectronics with improved slew rate (16 V/µs versus 13 V/µs), lower input bias current (20 pA versus 65 pA), and extended supply voltage range (6 V to 36 V versus 10 V to 30 V). TL072CDT is AEC-Q100 qualified for automotive applications.

Q: Can I use MC33172 series parts as substitutes?

A: MC33172 series parts are pin-compatible in 8-SOIC packaging but feature different amplifier topology (general purpose versus J-FET) and significantly different electrical performance. Slew rate is reduced to 2 V/µs to 2.1 V/µs, and gain bandwidth product is reduced to 1.8 MHz to 2.1 MHz. These parts are suitable only for low-frequency applications where the original J-FET performance is not required.

Q: What is the advantage of TL072BIDT over TL072ACDR?

A: TL072BIDT extends the operating temperature range to -40°C ~ 125°C compared to 0°C ~ 70°C for TL072ACDR. TL072BIDT also features improved input bias current (20 pA versus 65 pA) and reduced input offset voltage (1 mV versus 3 mV). TL072BIDT is AEC-Q100 qualified for automotive applications. Select TL072BIDT when extended temperature range or automotive qualification is required.

Q: Are all substitute parts available in 8-SOIC packaging?

A: Yes. All substitute parts listed are available in 8-SOIC (0.154", 3.90mm Width) surface mount packaging. Packaging format (Cut Tape, Tape & Reel, or Tube) varies by part number and supplier.

Q: What is the minimum supply voltage for each substitute?

A: TL072ACDR and TL072ACDRG4 require minimum 10 V supply. TL072ACDT, TL072BIDT, TL072BIYDT, and TL072CDT require minimum 6 V supply. MC33172 series parts require minimum 3 V to 4 V supply. MC34072DR2G requires minimum 3 V supply. LM833DT requires minimum 5 V supply. Verify supply voltage compatibility with your circuit design.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant and REACH unaffected, matching the compliance status of the original TL072ACDRG4.

Q: Which substitute has the lowest input bias current?

A: TL072ACDT, TL072BIDT, TL072BIYDT, and TL072CDT all feature 20 pA input bias current, which is lower than the original TL072ACDRG4 specification of 65 pA. MC33172 series parts feature 20 nA input bias current, which is significantly higher. Select TL072 series parts when low input bias current is critical.

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