TLE2082CDG4 Equivalent & Substitute Parts

Part Overview

The TLE2082CDG4 is a J-FET input operational amplifier manufactured by Texas Instruments, configured as a dual-channel (2 circuit) device in 8-SOIC surface mount packaging. This component is classified as Last Time Buy, indicating limited future availability from the original manufacturer. The TLE2082CDG4 is designed for applications requiring low input bias current, low input offset voltage, and moderate slew rate performance in a compact form factor.

Identification of equivalent and substitute parts is necessary due to the Last Time Buy status of the TLE2082CDG4. Alternative parts with compatible electrical and mechanical specifications ensure design continuity and supply chain reliability.

Key Parameters

Parameter	Value	Unit
Amplifier Type	J-FET	—
Number of Circuits	2	—
Slew Rate	45	V/µs
Gain Bandwidth Product	10	MHz
Current - Input Bias	20	pA
Voltage - Input Offset	1.1	mV
Current - Supply (x2 Channels)	3.1	mA
Current - Output / Channel	48	mA
Voltage - Supply Span (Min)	4.5	V
Voltage - Supply Span (Max)	38	V
Operating Temperature	0 to 70	°C
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 TLE2082CDG4 is determined by strict alignment of electrical and mechanical parameters. The following criteria define valid substitutes:

Primary Substitution Criteria:

Amplifier Type: J-FET (maintains input impedance and bias current characteristics)
Number of Circuits: 2 (dual-channel configuration)
Package / Case: 8-SOIC (0.154", 3.90mm Width) (ensures PCB footprint compatibility)
Mounting Type: Surface Mount (maintains assembly process compatibility)
Slew Rate: 45 V/µs (maintains signal fidelity in time-sensitive applications)
Gain Bandwidth Product: 10 MHz (maintains frequency response)
Current - Input Bias: 20 pA (maintains input impedance performance)
Voltage - Input Offset: 1.1 mV (maintains DC accuracy)
Voltage - Supply Span: 4.5 V to 38 V (maintains operating range)

Secondary Substitution Criteria:

RoHS3 Compliance (regulatory requirement)
MSL 1 (Unlimited) (handling and storage compatibility)

Substitute parts are grouped into two categories:

Category A - Direct Electrical Equivalents (J-FET Type, Identical Specifications): Parts that maintain all primary electrical specifications and J-FET amplifier type. These include TLE2082CDR, TLE2082CD, and LT1057 series variants (LT1057IS8, LT1057IS8#PBF, LT1057IS8#TRPBF, LT1057S8#PBF, LT1057S8#TRPBF).

Category B - Functional Alternatives (Different Amplifier Type): Parts that maintain 2-circuit configuration and 8-SOIC packaging but differ in amplifier type (Audio or General Purpose). These include LM833DR2G, LM833DT, and MC1458DT. These alternatives are suitable only when J-FET input characteristics are not required by the application.

Parameter Comparison

Parameter	TLE2082CDG4	TLE2082CDR	TLE2082CD	LT1057IS8	LT1057S8#TRPBF	LM833DR2G	LM833DT	MC1458DT
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Analog Devices Inc.	Analog Devices Inc.	onsemi	STMicroelectronics	STMicroelectronics
Amplifier Type	J-FET	J-FET	J-FET	J-FET	J-FET	Audio	Audio	General Purpose
Number of Circuits	2	2	2	2	2	2	2	2
Slew Rate (V/µs)	45	45	45	13	13	7	7	0.8
Gain Bandwidth Product (MHz)	10	10	10	5	5	15	15	1
Current - Input Bias (pA)	20	20	20	7	7	300	300	30
Voltage - Input Offset (mV)	1.1	1.1	1.1	0.22	0.22	0.3	0.3	1
Current - Supply (mA)	3.1	3.1	3.1	1.7	1.7	4	4	2.3
Current - Output / Channel (mA)	48	48	48	—	—	29	37	25
Voltage - Supply Span (Min - V)	4.5	4.5	4.5	20	20	10	5	5
Voltage - Supply Span (Max - V)	38	38	38	36	36	36	30	30
Operating Temperature (°C)	0 to 70	0 to 70	0 to 70	-40 to 85	0 to 70	-40 to 85	-40 to 105	0 to 70
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Last Time Buy	Active	Last Time Buy	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

TLE2082CDR is the primary recommended substitute. It maintains all electrical specifications of the TLE2082CDG4 (J-FET type, 45 V/µs slew rate, 10 MHz gain bandwidth product, 20 pA input bias current, 1.1 mV input offset voltage) while offering Active product status with significantly higher inventory availability (7228 pcs vs. 852 pcs). Both parts are ROHS3 compliant and MSL 1 rated. The TLE2082CDR is available in reel packaging, suitable for high-volume production environments.

TLE2082CD is a secondary option, maintaining identical electrical specifications but retaining Last Time Buy status. This part is suitable only when tube packaging is specifically required and inventory constraints are acceptable.

For J-FET Amplifier Applications with Extended Temperature Range:

The LT1057 series (LT1057IS8, LT1057IS8#PBF, LT1057IS8#TRPBF, LT1057S8#PBF, LT1057S8#TRPBF) provides J-FET input characteristics with Active product status. These parts differ in slew rate (13 V/µs vs. 45 V/µs) and gain bandwidth product (5 MHz vs. 10 MHz), making them suitable for applications where lower slew rate is acceptable. LT1057IS8 variants support extended temperature operation (-40°C to 85°C). Packaging options include tube and tape & reel formats. Input bias current is superior (7 pA vs. 20 pA), and input offset voltage is lower (220 µV vs. 1.1 mV).

For Audio and General Purpose Applications (When J-FET Input Not Required):

LM833DR2G (onsemi) and LM833DT (STMicroelectronics) are Audio amplifier alternatives with Active status and high inventory availability. These parts sacrifice J-FET input characteristics but offer higher gain bandwidth product (15 MHz) and extended temperature ranges. LM833DT supports -40°C to 105°C operation. These substitutes are appropriate only when input bias current and input offset voltage specifications are not critical design constraints.

MC1458DT is a General Purpose amplifier alternative with Active status. This part is suitable only for non-critical applications where low slew rate (0.8 V/µs) and low gain bandwidth product (1 MHz) are acceptable.

Compliance and Certification:

All recommended substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) rating, ensuring regulatory and handling compatibility with the original TLE2082CDG4 design.

Frequently Asked Questions (FAQ)

Q1: Can TLE2082CDR directly replace TLE2082CDG4 in existing designs?

A: Yes. TLE2082CDR is a direct electrical equivalent with identical J-FET amplifier type, dual-channel configuration, slew rate (45 V/µs), gain bandwidth product (10 MHz), input bias current (20 pA), input offset voltage (1.1 mV), and supply voltage range (4.5 V to 38 V). Both use 8-SOIC surface mount packaging. The primary difference is product status: TLE2082CDR is Active, while TLE2082CDG4 is Last Time Buy. PCB footprint and electrical performance are fully compatible.

Q2: What is the difference between TLE2082CDG4 and TLE2082CDR packaging?

A: TLE2082CDG4 is supplied in Tube packaging, while TLE2082CDR is supplied in Reel (Tape & Reel) packaging. Both use identical 8-SOIC (0.154", 3.90mm Width) surface mount package. Tube packaging is suitable for manual assembly and small-volume production. Reel packaging is optimized for automated pick-and-place assembly in high-volume manufacturing. The electrical specifications and PCB footprint are identical.

Q3: Can LT1057 series parts replace TLE2082CDG4?

A: LT1057 series parts (LT1057IS8, LT1057S8#TRPBF, etc.) are J-FET amplifiers with identical dual-channel configuration and 8-SOIC packaging. However, they differ in key electrical specifications: slew rate is 13 V/µs (vs. 45 V/µs), gain bandwidth product is 5 MHz (vs. 10 MHz), and input bias current is 7 pA (vs. 20 pA). These parts are suitable for applications where lower slew rate and lower gain bandwidth product are acceptable. LT1057 variants offer superior input offset voltage (220 µV vs. 1.1 mV) and lower supply current (1.7 mA vs. 3.1 mA). Extended temperature variants (-40°C to 85°C) are available.

Q4: Why are LM833 and MC1458 listed as substitutes if they have different amplifier types?

A: LM833 (Audio amplifier) and MC1458 (General Purpose amplifier) are listed as functional alternatives, not direct replacements. They maintain the dual-channel configuration and 8-SOIC packaging but differ fundamentally in amplifier type and electrical performance. These parts are suitable only for applications where J-FET input characteristics (low input bias current, high input impedance) are not required. Use of these alternatives requires circuit re-evaluation and testing.

Q5: What is the significance of "Last Time Buy" status for TLE2082CDG4?

A: Last Time Buy status indicates that Texas Instruments will discontinue production of TLE2082CDG4 after a specified date. New orders may be accepted for a limited time, but long-term availability is not guaranteed. Designs using TLE2082CDG4 should transition to Active-status alternatives such as TLE2082CDR to ensure supply chain continuity and support for future production runs.

Q6: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (TLE2082CDR, TLE2082CD, LT1057 series, LM833 series, MC1458DT) are ROHS3 compliant. All parts maintain MSL 1 (Unlimited) moisture sensitivity level, ensuring compatibility with standard PCB assembly and storage procedures.

Q7: Which substitute offers the best inventory availability?

A: LM833DT (STMicroelectronics) offers the highest inventory availability with 166,607 pcs in stock. LM833DR2G (onsemi) provides 45,855 pcs. TLE2082CDR (Texas Instruments) provides 7,228 pcs. If J-FET input characteristics are required, TLE2082CDR is the recommended choice with the highest inventory among J-FET alternatives.

Q8: Can TLE2082CDG4 be used in applications requiring extended temperature operation?

A: TLE2082CDG4 operates from 0°C to 70°C. For applications requiring extended temperature range (-40°C to 85°C or -40°C to 105°C), LT1057 series (LT1057IS8 variants) or LM833DT are appropriate alternatives. These parts maintain J-FET or Audio amplifier characteristics while supporting wider temperature ranges.

Q9: What is the impact of different slew rates on circuit performance?

A: Slew rate determines the maximum rate of change of output voltage. TLE2082CDG4 has 45 V/µs slew rate, suitable for high-speed signal processing. LT1057 series has 13 V/µs, and LM833 series has 7 V/µs. Lower slew rate may introduce distortion in high-frequency or high-amplitude signal applications. Selection depends on signal bandwidth and amplitude requirements. For time-critical applications, maintain slew rate at or above 45 V/µs.

Q10: What is the difference between input bias current specifications across substitutes?

A: Input bias current affects input impedance and DC offset performance. TLE2082CDG4 has 20 pA input bias current. LT1057 series has 7 pA (superior). LM833 series has 300 nA (significantly higher). MC1458DT has 30 nA. Lower input bias current is preferred for high-impedance signal sources and precision DC applications. For audio and general-purpose applications, higher input bias current is acceptable.

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