TLE2082IDRG4 Equivalent & Substitute Parts

Part Overview

The TLE2082IDRG4 is a J-FET input operational amplifier manufactured by Texas Instruments, configured as a dual-channel (2 circuit) device in an 8-SOIC surface mount package. This component is classified as a linear amplifier and is designed for applications requiring high input impedance and low input bias current characteristics typical of J-FET input op-amps.

The TLE2082IDRG4 is currently discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design support and production requirements. Substitute parts must maintain functional compatibility through matching package type, circuit count, and electrical performance within acceptable operating parameters.

Key Parameters

Parameter	Value	Unit
Amplifier Type	J-FET	—
Number of Circuits	2	—
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Slew Rate	45	V/µs
Gain Bandwidth Product	10	MHz
Current - Input Bias	20	pA
Voltage - Input Offset	1.1	mV
Current - Supply	3.1 (x2 Channels)	mA
Current - Output / Channel	48	mA
Voltage - Supply Span (Min)	4.5	V
Voltage - Supply Span (Max)	38	V
Operating Temperature	-40 to 85	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the TLE2082IDRG4 is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure direct PCB footprint compatibility.

Circuit Configuration: All substitutes must provide 2 circuits (dual-channel configuration) to maintain functional equivalence in dual op-amp applications.

Amplifier Type Classification: Substitutes are grouped into two categories based on amplifier type:

J-FET Input Amplifiers: LT1057 series parts maintain the same J-FET input architecture as the TLE2082IDRG4, providing ultra-low input bias current (7 pA) and high input impedance.
Audio and General Purpose Amplifiers: LM833, OP275, and MC1458 series parts offer alternative amplifier topologies with different electrical characteristics suitable for applications where J-FET input performance is not mandatory.

Electrical Parameter Ranges: Substitutes must operate within the supply voltage range of 4.5 V to 38 V minimum and maximum, with operating temperature coverage of -40°C to 85°C or broader.

Compliance and Status: All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and active product status to ensure long-term availability and regulatory conformance.

Parameter Comparison

Parameter	TLE2082IDRG4	LT1057IS8#PBF	LT1057IS8#TRPBF	LT1057S8#PBF	LT1057S8#TRPBF	OP275GSZ	OP275GSZ-REEL	OP275GSZ-REEL7	LM833DR2G	LM833DT	MC1458DT
Manufacturer	Texas Instruments	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	onsemi	STMicroelectronics	STMicroelectronics
Amplifier Type	J-FET	J-FET	J-FET	J-FET	J-FET	Audio	Audio	Audio	Audio	Audio	General Purpose
Number of Circuits	2	2	2	2	2	2	2	2	2	2	2
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Slew Rate (V/µs)	45	13	13	13	13	22	22	22	7	7	0.8
Gain Bandwidth Product (MHz)	10	5	5	5	5	9	9	9	15	15	1
Current - Input Bias (pA/nA)	20 pA	7 pA	7 pA	7 pA	7 pA	100 nA	100 nA	100 nA	300 nA	300 nA	30 nA
Voltage - Input Offset (mV/µV)	1.1 mV	220 µV	220 µV	220 µV	220 µV	1 mV	1 mV	1 mV	300 µV	300 µV	1 mV
Current - Supply (mA)	3.1	1.7	1.7	1.7	1.7	4	4	4	4	4	2.3
Current - Output / Channel (mA)	48	—	—	—	—	90	90	90	29	37	25
Voltage - Supply Span (Min)	4.5 V	20 V	20 V	20 V	20 V	9 V	9 V	9 V	10 V	5 V	5 V
Voltage - Supply Span (Max)	38 V	36 V	36 V	36 V	36 V	44 V	44 V	44 V	36 V	30 V	30 V
Operating Temperature	-40 to 85°C	-40 to 85°C	-40 to 85°C	0 to 70°C	0 to 70°C	-40 to 85°C	-40 to 85°C	-40 to 85°C	-40 to 85°C	-40 to 105°C	0 to 70°C
Product Status	Discontinued	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

Engineering Selection Recommendations

J-FET Input Substitutes (Preferred for High Input Impedance Applications)

The LT1057 series (LT1057IS8#PBF, LT1057IS8#TRPBF, LT1057S8#PBF, LT1057S8#TRPBF) manufactured by Analog Devices Inc. provides direct functional substitution for J-FET input amplifier applications. These parts maintain J-FET input architecture with superior input bias current performance (7 pA versus 20 pA). All LT1057 variants are ROHS3 compliant and carry active product status with extended inventory availability.

Selection between LT1057 variants depends on packaging requirements: tube packaging (LT1057IS8#PBF, LT1057S8#PBF) or tape & reel (LT1057IS8#TRPBF, LT1057S8#TRPBF). Temperature-rated variants include industrial grade (-40°C to 85°C) and commercial grade (0°C to 70°C) options.

Audio Amplifier Substitutes (Alternative for Broadband Applications)

The OP275 series (OP275GSZ, OP275GSZ-REEL, OP275GSZ-REEL7) manufactured by Analog Devices Inc. offers audio amplifier topology with higher slew rate (22 V/µs) and superior output current capability (90 mA per channel). These parts support the full supply voltage range of the TLE2082IDRG4 (9 V to 44 V maximum) and maintain -40°C to 85°C operating temperature coverage. All variants are ROHS3 compliant with active product status.

The LM833 series (LM833DR2G from onsemi, LM833DT from STMicroelectronics) provides audio amplifier functionality with 15 MHz gain bandwidth product. The STMicroelectronics LM833DT variant extends operating temperature to 105°C and supports minimum supply voltage of 5 V. Both manufacturers maintain active product status and ROHS3 compliance.

General Purpose Amplifier Substitute (Low-Speed Applications)

The MC1458DT manufactured by STMicroelectronics provides general purpose amplifier topology with reduced bandwidth (1 MHz) and slew rate (0.8 V/µs). This part is suitable only for applications not requiring the performance characteristics of the TLE2082IDRG4. Operating temperature is limited to 0°C to 70°C, and supply voltage range is 5 V to 30 V.

Compliance and Availability

All substitute parts maintain ROHS3 compliance and MSL Level 1 moisture sensitivity rating. All recommended substitutes carry active product status, ensuring long-term availability and manufacturing continuity. Inventory levels across substitute options range from 1,515 to 166,607 units, providing supply security for production requirements.

Frequently Asked Questions (FAQ)

Q: Can the LT1057 series directly replace the TLE2082IDRG4 without circuit modification?

A: The LT1057 series maintains the same 8-SOIC package footprint and dual-channel configuration, enabling direct PCB substitution. However, the minimum supply voltage requirement of 20 V for LT1057 parts differs from the TLE2082IDRG4 minimum of 4.5 V. Circuit designs operating below 20 V supply voltage require alternative substitutes such as OP275 or LM833 series.

Q: What is the primary difference between J-FET input substitutes and audio amplifier substitutes?

A: J-FET input amplifiers (LT1057 series) provide ultra-low input bias current (7 pA) and high input impedance, suitable for high-impedance signal sources and precision measurement applications. Audio amplifiers (OP275, LM833 series) use bipolar input stages with higher input bias current (100-300 nA) but offer higher slew rates and output current capability, optimized for audio frequency applications and lower impedance loads.

Q: Are packaging variants (tube, tape & reel, cut tape) electrically equivalent?

A: Yes. Packaging variants of the same base part number (such as OP275GSZ, OP275GSZ-REEL, and OP275GSZ-REEL7) are electrically identical. Packaging selection depends on production volume and assembly equipment compatibility. Tube packaging suits lower-volume applications, while tape & reel packaging is standard for automated assembly processes.

Q: What is the significance of operating temperature range differences between substitute parts?

A: Operating temperature range defines the maximum and minimum ambient temperatures at which the component maintains specified electrical performance. The TLE2082IDRG4 operates from -40°C to 85°C. Substitutes with narrower ranges (such as MC1458DT at 0°C to 70°C) are unsuitable for applications requiring full industrial temperature coverage. Extended-range variants (such as LM833DT at -40°C to 105°C) provide additional thermal margin for high-temperature environments.

Q: Can the MC1458DT substitute for the TLE2082IDRG4 in all applications?

A: No. The MC1458DT is a general purpose amplifier with significantly reduced performance specifications: 1 MHz gain bandwidth product versus 10 MHz, and 0.8 V/µs slew rate versus 45 V/µs. This part is suitable only for low-frequency applications where bandwidth and slew rate requirements are minimal. High-speed or precision applications require J-FET or audio amplifier substitutes.

Q: What supply voltage range must be verified when selecting a substitute?

A: The TLE2082IDRG4 operates from 4.5 V to 38 V. Substitutes must support the actual supply voltage used in the circuit. LT1057 series requires minimum 20 V, limiting use in low-voltage designs. OP275 series supports 9 V to 44 V, and LM833DT supports 5 V to 30 V. Verify that the selected substitute's supply voltage range encompasses the circuit design requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All recommended substitute parts are ROHS3 compliant and carry MSL Level 1 moisture sensitivity rating, matching the compliance profile of the TLE2082IDRG4. This ensures regulatory conformance for applications subject to RoHS directives and environmental standards.

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