TLE2082AIDRG4 Equivalent & Substitute Parts

Part Overview

The TLE2082AIDRG4 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 discontinued at DiGi Electronics, necessitating identification of equivalent substitute parts for ongoing design requirements and production continuity.

Key Parameters

Parameter	Value
Amplifier Type	J-FET
Number of Circuits	2
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Slew Rate	40 V/µs
Gain Bandwidth Product	10 MHz
Current - Input Bias	20 pA
Voltage - Input Offset	700 µV
Current - Supply	3.1 mA (x2 Channels)
Current - Output / Channel	48 mA
Voltage - Supply Span (Min)	4.5 V
Voltage - Supply Span (Max)	38 V
Operating Temperature	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TLE2082AIDRG4 is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

Amplifier Type: J-FET input configuration
Number of Circuits: Dual-channel (2 circuits)
Package / Case: 8-SOIC form factor
Mounting Type: Surface Mount
Supply Voltage Range: Compatibility with 4.5 V to 38 V operating envelope
Operating Temperature Range: Support for -40°C to 85°C minimum

Secondary Compatibility Parameters:

Slew Rate: 40 V/µs or greater
Gain Bandwidth Product: 10 MHz or greater
Input Bias Current: 20 pA or lower
Input Offset Voltage: 700 µV or lower
Output Current per Channel: 48 mA or greater
Supply Current: 3.1 mA or lower per channel

Substitute parts must satisfy all primary criteria and maintain compatibility within the secondary parameter ranges to ensure functional equivalence in circuit applications.

Parameter Comparison

Parameter	TLE2082AIDRG4	TL082CMX/NOPB	AD746JRZ	AD8620ARZ	AD8620BRZ	LT1057IS8#PBF	LT1057S8#PBF
Amplifier Type	J-FET	J-FET	J-FET	J-FET	J-FET	J-FET	J-FET
Number of Circuits	2	2	2	2	2	2	2
Package / Case	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
Slew Rate (V/µs)	40	13	75	60	60	13	13
Gain Bandwidth Product (MHz)	10	4	13	25	25	5	5
Current - Input Bias (pA)	20	50	110	3	3	7	7
Voltage - Input Offset (µV)	700	5000	300	85	45	220	220
Current - Supply (mA)	3.1	3.6	7	3	3	1.7	1.7
Current - Output / Channel (mA)	48	17	25	45	45	Not specified	Not specified
Voltage - Supply Span Min (V)	4.5	36	9	10	10	20	20
Voltage - Supply Span Max (V)	38	36	36	26	26	36	36
Operating Temperature (°C)	-40 to 85	0 to 70	0 to 70	-40 to 125	-40 to 125	-40 to 85	0 to 70
Product Status	Discontinued	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Full Compatibility):

The AD8620ARZ, AD8620ARZ-REEL, AD8620ARZ-REEL7, and AD8620BRZ from Analog Devices Inc. provide the most comprehensive substitution for the TLE2082AIDRG4. These devices maintain J-FET amplifier architecture with dual circuits in 8-SOIC packaging and exceed the original part's electrical specifications across slew rate (60 V/µs), gain bandwidth product (25 MHz), and input bias current (3 pA). All variants are ROHS3 compliant with MSL 1 rating and active product status, ensuring long-term availability. The AD8620 series supports extended operating temperature range (-40°C to 125°C), exceeding the original specification.

Secondary Substitutes (Conditional Compatibility):

The AD746JRZ from Analog Devices Inc. offers J-FET dual-channel architecture in 8-SOIC packaging with superior slew rate (75 V/µs) and gain bandwidth product (13 MHz). However, the minimum supply voltage requirement (9 V) exceeds the original part's 4.5 V minimum, restricting use in low-voltage applications. This device is ROHS3 compliant and maintains active product status.

The TL082CMX/NOPB from Texas Instruments provides J-FET dual-channel configuration in 8-SOIC packaging with ROHS3 compliance and active status. However, reduced slew rate (13 V/µs) and gain bandwidth product (4 MHz) fall below the original specification, and the maximum supply voltage is limited to 36 V. This substitute is suitable only for applications not requiring the original part's performance envelope.

Marginal Substitutes (Limited Compatibility):

The LT1057IS8#PBF, LT1057IS8#TRPBF, LT1057S8#PBF, and LT1057S8#TRPBF from Analog Devices Inc. (LT® series) maintain J-FET dual-channel 8-SOIC architecture with ROHS3 compliance and active status. However, these devices exhibit significantly reduced slew rate (13 V/µs) and gain bandwidth product (5 MHz) compared to the original part. The minimum supply voltage requirement (20 V) restricts application in low-voltage circuits. Output current per channel is not specified, introducing uncertainty in high-current applications. These substitutes are suitable only for low-speed, moderate-performance applications.

Packaging Considerations:

All substitute parts maintain identical 8-SOIC (0.154", 3.90mm Width) surface mount packaging, ensuring direct PCB layout compatibility without redesign. Packaging variants (Tube, Tape & Reel, Cut Tape & Digi-Reel) do not affect electrical performance and are selected based on procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can the TL082CMX/NOPB directly replace the TLE2082AIDRG4 in all applications?

A: The TL082CMX/NOPB shares J-FET dual-channel 8-SOIC architecture and ROHS3 compliance. However, it does not meet the original part's electrical specifications: slew rate is reduced from 40 V/µs to 13 V/µs, and gain bandwidth product decreases from 10 MHz to 4 MHz. Direct substitution is limited to applications where these reduced performance parameters are acceptable. The maximum supply voltage is also limited to 36 V compared to the original 38 V maximum.

Q: Which substitute offers the best overall performance match?

A: The AD8620ARZ, AD8620ARZ-REEL, AD8620ARZ-REEL7, and AD8620BRZ exceed the original TLE2082AIDRG4 specifications across all critical parameters: slew rate (60 V/µs vs. 40 V/µs), gain bandwidth product (25 MHz vs. 10 MHz), and input bias current (3 pA vs. 20 pA). These devices maintain J-FET dual-channel 8-SOIC configuration, ROHS3 compliance, and active product status with extended operating temperature range (-40°C to 125°C).

Q: Are there supply voltage limitations with substitute parts?

A: Yes. The original TLE2082AIDRG4 operates from 4.5 V to 38 V. The AD8620 series operates from 10 V to 26 V, the AD746JRZ from 9 V to 36 V, the TL082CMX/NOPB at 36 V fixed, and the LT1057 series from 20 V to 36 V. Applications requiring operation below 9 V cannot use the AD746JRZ or AD8620 series. Applications requiring operation above 26 V cannot use the AD8620 series.

Q: Do all substitute parts have identical packaging?

A: Yes. All substitute parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package, ensuring direct PCB compatibility without layout modifications. Packaging formats (Tube, Tape & Reel, Cut Tape & Digi-Reel) affect procurement and assembly logistics but not electrical performance or physical footprint.

Q: What is the significance of the discontinued status of the TLE2082AIDRG4?

A: The TLE2082AIDRG4 is discontinued at DiGi Electronics, indicating no further production or distribution through standard channels. All recommended substitute parts maintain active product status, ensuring availability for new designs and production continuity. Existing inventory of the original part (1115 pcs) is finite and subject to depletion.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (TL082CMX/NOPB, AD746JRZ, AD8620ARZ, AD8620ARZ-REEL, AD8620ARZ-REEL7, AD8620BRZ, LT1057IS8#PBF, LT1057IS8#TRPBF, LT1057S8#PBF, LT1057S8#TRPBF) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting environmental and regulatory requirements equivalent to the original part.

Q: Which substitute is recommended for low-power applications?

A: The LT1057 series (LT1057IS8#PBF, LT1057IS8#TRPBF, LT1057S8#PBF, LT1057S8#TRPBF) exhibits the lowest supply current at 1.7 mA per dual-channel configuration, compared to 3 mA for the AD8620 series and 3.1 mA for the original part. However, reduced slew rate (13 V/µs) and gain bandwidth product (5 MHz) limit applicability to low-speed circuits. The minimum supply voltage requirement (20 V) also restricts use in low-voltage designs.

Q: Can the AD8620 series be used in temperature-critical applications?

A: Yes. The AD8620ARZ, AD8620ARZ-REEL, AD8620ARZ-REEL7, and AD8620BRZ support operating temperature range from -40°C to 125°C, exceeding the original TLE2082AIDRG4 specification (-40°C to 85°C). This extended range is suitable for industrial and automotive applications requiring operation at elevated temperatures.

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