TL074CPWRG4 Equivalent & Substitute Parts

Part Overview

The TL074CPWRG4 is a J-FET input operational amplifier featuring four independent circuits in a 14-TSSOP surface mount package. This device is manufactured by Texas Instruments and is classified as a linear amplifier. The TL074CPWRG4 is currently discontinued at DiGi Electronics, necessitating identification of equivalent substitute components that maintain functional and electrical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value
Amplifier Type	J-FET
Number of Circuits	4
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 (x4 Channels)
Voltage - Supply Span (Min)	10 V
Voltage - Supply Span (Max)	30 V
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	14-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the TL074CPWRG4 are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

Package type: 14-TSSOP surface mount configuration
Circuit count: Four independent amplifier circuits
Mounting footprint: 0.173" width, 4.40mm standard dimension
Supply voltage range overlap: Minimum 10 V to maximum 30 V operational envelope
Environmental compliance: ROHS3 compliance and MSL Level 1

Substitution Logic: Substitute parts are grouped into two categories based on amplifier topology:

J-FET Topology Substitutes (TL074CPWR, TL084CPT, TL084IPT): These maintain the J-FET input architecture of the original TL074CPWRG4, ensuring equivalent input bias current characteristics and high input impedance performance.
General Purpose Topology Substitute (ADA4077-4ARUZ, ADA4077-4ARUZ-RL): These employ general purpose amplifier architecture with different electrical characteristics but maintain the same package footprint and circuit count.

Parameter Comparison

Parameter	TL074CPWRG4	TL074CPWR	TL084CPT	TL084IPT	ADA4077-4ARUZ	ADA4077-4ARUZ-RL
Manufacturer	Texas Instruments	Texas Instruments	STMicroelectronics	STMicroelectronics	Analog Devices Inc.	Analog Devices Inc.
Amplifier Type	J-FET	J-FET	J-FET	J-FET	General Purpose	General Purpose
Number of Circuits	4	4	4	4	4	4
Slew Rate	13 V/µs	13 V/µs	16 V/µs	16 V/µs	1.2 V/µs	1.2 V/µs
Gain Bandwidth Product	5.25 MHz	5.25 MHz	4 MHz	4 MHz	3.6 MHz	3.6 MHz
Current - Input Bias	65 pA	65 pA	20 pA	20 pA	400 pA	400 pA
Voltage - Input Offset	3 mV	3 mV	3 mV	3 mV	15 µV	15 µV
Current - Supply	1.4 mA (x4)	1.4 mA (x4)	1.4 mA (x4)	1.4 mA (x4)	400 µA (x4)	400 µA (x4)
Voltage - Supply Span (Min)	10 V	10 V	6 V	6 V	5 V	5 V
Voltage - Supply Span (Max)	30 V	30 V	36 V	36 V	30 V	30 V
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 105°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP
Product Status	Discontinued	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

TL074CPWR (Texas Instruments)

The TL074CPWR is the direct active equivalent to the discontinued TL074CPWRG4. This part maintains identical electrical specifications including J-FET amplifier topology, slew rate of 13 V/µs, gain bandwidth product of 5.25 MHz, and input bias current of 65 pA. The TL074CPWR is currently in active production status with substantial inventory availability (31,027 pieces). This part is recommended as the primary substitute for direct replacement applications where the original TL074CPWRG4 specifications are required. Both parts share identical operating temperature range (0°C ~ 70°C) and supply voltage specifications (10 V to 30 V). The TL074CPWR is supplied in Cut Tape and Digi-Reel packaging formats.

TL084CPT and TL084IPT (STMicroelectronics)

The TL084CPT and TL084IPT are J-FET amplifier alternatives manufactured by STMicroelectronics. These parts offer enhanced performance characteristics including higher slew rate (16 V/µs versus 13 V/µs) and lower input bias current (20 pA versus 65 pA). The TL084 series supports extended supply voltage range (6 V to 36 V) compared to the TL074CPWRG4 (10 V to 30 V). The TL084CPT operates at 0°C ~ 70°C, matching the original part's temperature range. The TL084IPT extends the operating temperature to -40°C ~ 105°C. Both TL084 variants carry AEC-Q100 automotive qualification. These parts are suitable for applications requiring improved slew rate performance or extended supply voltage flexibility while maintaining J-FET input characteristics.

ADA4077-4ARUZ and ADA4077-4ARUZ-RL (Analog Devices Inc.)

The ADA4077-4ARUZ and ADA4077-4ARUZ-RL are general purpose amplifier alternatives from Analog Devices Inc. These parts employ a different amplifier topology (general purpose versus J-FET) and exhibit significantly different electrical characteristics. The ADA4077 series features lower slew rate (1.2 V/µs), lower input bias current (400 pA), and substantially lower input offset voltage (15 µV versus 3 mV). Supply current consumption is reduced to 400 µA per channel compared to 1.4 mA for the TL074CPWRG4. The ADA4077 series supports extended operating temperature range (-40°C ~ 125°C) and lower minimum supply voltage (5 V). These parts are suitable for applications where lower power consumption and lower input offset voltage are prioritized over J-FET input characteristics. The ADA4077-4ARUZ is supplied in Tube packaging; the ADA4077-4ARUZ-RL is supplied in Tape & Reel format.

Frequently Asked Questions (FAQ)

Q: Can the TL074CPWR be used as a direct replacement for the TL074CPWRG4?

A: Yes. The TL074CPWR is electrically and mechanically identical to the TL074CPWRG4. Both parts feature J-FET amplifier topology, four circuits, identical slew rate (13 V/µs), identical gain bandwidth product (5.25 MHz), and identical input bias current (65 pA). The TL074CPWR is currently in active production status, whereas the TL074CPWRG4 is discontinued. The TL074CPWR is the recommended substitute for direct replacement applications.

Q: What is the difference between J-FET and general purpose amplifier topologies?

A: J-FET input amplifiers (TL074, TL084 series) feature extremely high input impedance and very low input bias current (20-65 pA range). General purpose amplifiers (ADA4077 series) feature lower input impedance and higher input bias current (400 pA). J-FET topology is preferred for high-impedance signal sources and applications requiring minimal input loading. General purpose topology is preferred for applications prioritizing low power consumption and low input offset voltage.

Q: Are the TL084CPT and TL084IPT suitable substitutes for the TL074CPWRG4?

A: The TL084 series maintains J-FET amplifier topology and four-circuit configuration, making them functionally compatible. The TL084 series offers improved performance with higher slew rate (16 V/µs versus 13 V/µs) and lower input bias current (20 pA versus 65 pA). The TL084 series supports extended supply voltage range (6 V to 36 V). The TL084CPT operates at 0°C ~ 70°C, matching the original part. The TL084IPT extends temperature range to -40°C ~ 105°C. These parts are suitable substitutes for applications where improved performance specifications are acceptable.

Q: What are the key differences between the ADA4077-4ARUZ and ADA4077-4ARUZ-RL?

A: The ADA4077-4ARUZ and ADA4077-4ARUZ-RL are electrically identical. The primary difference is packaging format. The ADA4077-4ARUZ is supplied in Tube packaging for lower-volume applications. The ADA4077-4ARUZ-RL is supplied in Tape & Reel format for high-volume automated assembly. Both parts feature identical electrical specifications and operating characteristics.

Q: Can the ADA4077 series be used in applications designed for the TL074CPWRG4?

A: The ADA4077 series can be used in applications where the different electrical characteristics are acceptable. The ADA4077 features lower slew rate (1.2 V/µs versus 13 V/µs), higher input bias current (400 pA versus 65 pA), and lower input offset voltage (15 µV versus 3 mV). The ADA4077 is preferred for low-power applications and applications requiring minimal input offset voltage. The ADA4077 is not suitable for applications requiring high slew rate or minimal input bias current loading.

Q: Are all substitute parts available in the same 14-TSSOP package?

A: Yes. All substitute parts listed (TL074CPWR, TL084CPT, TL084IPT, ADA4077-4ARUZ, ADA4077-4ARUZ-RL) are manufactured in the 14-TSSOP surface mount package with identical 0.173" width and 4.40mm standard dimensions. All parts are pin-compatible and suitable for direct PCB footprint replacement.

Q: What is the inventory status of substitute parts?

A: The TL074CPWR has the highest inventory availability with 31,027 pieces in stock. The TL084IPT has 26,371 pieces in stock. The TL084CPT has 12,870 pieces in stock. The ADA4077-4ARUZ has 6,402 pieces in stock. The ADA4077-4ARUZ-RL has 5,818 pieces in stock. All substitute parts are currently in active production status.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). All parts are suitable for applications requiring environmental compliance certification.

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