TLE2082CD Equivalent & Substitute Parts

Part Overview

The TLE2082CD 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 discontinued production with limited remaining inventory (2030 pcs). The TLE2082CD operates across a wide supply voltage range (4.5V to 38V) and is suitable for applications requiring low input bias current and low input offset voltage characteristics inherent to J-FET amplifier topology.

Identification of equivalent and substitute parts is necessary due to the Last Time Buy status of the TLE2082CD. Alternative components with compatible electrical and mechanical specifications ensure design continuity and long-term 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	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the TLE2082CD is determined by strict alignment of electrical and mechanical parameters. The following criteria establish valid substitute relationships:

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 form factor (mechanical compatibility)
Mounting Type: Surface Mount (PCB assembly compatibility)
Voltage - Supply Span: Minimum 4.5V, Maximum ≥38V (operational envelope containment)

Secondary Compatibility Parameters:

Slew Rate: ≥45V/µs (performance preservation)
Gain Bandwidth Product: ≥10 MHz (frequency response)
Current - Input Bias: ≤20 pA (low-noise operation)
Voltage - Input Offset: ≤1.1 mV (precision requirements)

Substitute parts are grouped into two categories:

Category A - Direct J-FET Substitutes (Highest Compatibility): Parts maintaining J-FET amplifier topology with electrical parameters meeting or exceeding TLE2082CD specifications. These include TLE2082CDR, LT1057S8#TRPBF, LT1057IS8#PBF, and LT1057IS8.

Category B - Functional Alternatives (Conditional Compatibility): Parts with different amplifier topology (General Purpose or Audio) that share 8-SOIC packaging and dual-channel configuration but may require application-level verification. These include AS358MTR-E1, AS358MTR-G1, LM833DR2G, and LM833DT.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (mV)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Status
TLE2082CD	Texas Instruments	J-FET	45	10	20	1.1	4.5	38	0 to 70	Last Time Buy
TLE2082CDR	Texas Instruments	J-FET	45	10	20	1.1	4.5	38	0 to 70	Active
ADTL082ARZ-REEL	Analog Devices Inc.	J-FET	20	5	2	1.5	8	36	-40 to 125	Active
AS358MTR-E1	Diodes Incorporated	General Purpose	—	—	20000	2	3	36	-40 to 85	Active
AS358MTR-G1	Diodes Incorporated	General Purpose	—	—	20000	2	3	36	-40 to 85	Active
LM833DR2G	onsemi	Audio	7	15	300000	0.3	10	36	-40 to 85	Active
LM833DT	STMicroelectronics	Audio	7	15	300000	0.3	5	30	-40 to 105	Active
LT1057IS8	Analog Devices Inc.	J-FET	13	5	7	0.22	20	36	-40 to 85	Active
LT1057IS8#PBF	Analog Devices Inc.	J-FET	13	5	7	0.22	20	36	-40 to 85	Active
LT1057IS8#TRPBF	Analog Devices Inc.	J-FET	13	5	7	0.22	20	36	-40 to 85	Active
LT1057S8#PBF	Analog Devices Inc.	J-FET	13	5	7	0.22	20	36	0 to 70	Active

Engineering Selection Recommendations

Tier 1 - Recommended Direct Replacement:

TLE2082CDR is the primary recommended substitute. Manufactured by Texas Instruments, this part maintains identical electrical specifications to the TLE2082CD while offering Active product status with significantly higher inventory availability (7228 pcs). Both parts share J-FET amplifier topology, dual-channel configuration, 8-SOIC packaging, and equivalent performance parameters. The TLE2082CDR is ROHS3 compliant and carries MSL 1 rating, matching the original part's environmental compliance profile.

Tier 2 - J-FET Topology Alternatives:

LT1057S8#PBF, LT1057IS8#TRPBF, and LT1057IS8#PBF are Analog Devices J-FET amplifiers in Active status. These parts maintain J-FET input characteristics with lower input bias current (7 pA vs. 20 pA) and superior input offset voltage (220 µV vs. 1.1 mV). However, they exhibit reduced slew rate (13V/µs vs. 45V/µs) and lower gain bandwidth product (5 MHz vs. 10 MHz). Supply voltage minimum requirement is 20V, which exceeds the TLE2082CD's 4.5V minimum. These parts are suitable for applications where lower input bias current is prioritized and supply voltage constraints are not limiting.

ADTL082ARZ-REEL (Analog Devices) offers J-FET topology with extended operating temperature range (-40°C to 125°C) and Active status. Input bias current is significantly lower (2 pA), but slew rate and gain bandwidth product are reduced. Supply voltage minimum is 8V, restricting use in low-voltage applications.

Tier 3 - Functional Alternatives (Conditional Use):

AS358MTR-E1 and AS358MTR-G1 (Diodes Incorporated) are General Purpose amplifiers with high inventory availability. These parts do not maintain J-FET topology; input bias current is substantially higher (20 nA vs. 20 pA). These alternatives are suitable only for applications where J-FET characteristics are not critical and where the lower supply voltage minimum (3V) provides advantage.

LM833DR2G and LM833DT (onsemi and STMicroelectronics) are Audio amplifiers with Active status and high inventory. These parts do not meet J-FET specifications and exhibit significantly higher input bias current (300 nA). Use is restricted to audio-specific applications where J-FET performance is not required.

Compliance and Certification:

All recommended substitutes maintain ROHS3 compliance and MSL 1 rating (except AS358 variants with MSL 3). All parts carry EAR99 ECCN classification and REACH Unaffected status, matching the original part's regulatory profile.

Frequently Asked Questions (FAQ)

Q1: Can TLE2082CDR be used as a direct drop-in replacement for TLE2082CD?

A: Yes. TLE2082CDR is manufactured by Texas Instruments with identical electrical specifications, dual J-FET topology, and 8-SOIC packaging. Both parts operate across 4.5V to 38V supply range with equivalent slew rate (45V/µs), gain bandwidth product (10 MHz), input bias current (20 pA), and input offset voltage (1.1 mV). The primary difference is product status: TLE2082CDR is Active with higher inventory availability.

Q2: What is the key difference between J-FET and General Purpose amplifier substitutes?

A: J-FET amplifiers (TLE2082CD, TLE2082CDR, LT1057 series, ADTL082ARZ-REEL) feature extremely low input bias current (2–20 pA range) and high input impedance, suitable for precision measurement and low-noise applications. General Purpose amplifiers (AS358 series) have input bias current in the nanoampere range (20 nA), making them unsuitable for applications requiring J-FET characteristics. Selection depends on application requirements for input impedance and bias current performance.

Q3: Why do LT1057 series parts require a minimum 20V supply while TLE2082CD operates at 4.5V minimum?

A: The LT1057 series is designed for higher supply voltage operation and does not support the 4.5V to 20V supply range of the TLE2082CD. Applications operating at supply voltages below 20V cannot use LT1057 variants. TLE2082CDR or ADTL082ARZ-REEL (8V minimum) are appropriate for low-voltage designs.

Q4: Are AS358MTR-E1 and AS358MTR-G1 interchangeable with each other?

A: Yes. Both parts are General Purpose amplifiers from Diodes Incorporated with identical electrical specifications. The difference is packaging: AS358MTR-E1 is supplied in Cut Tape (CT) & Digi-Reel format, while AS358MTR-G1 is supplied in Tape & Reel (TR) format. Electrical performance and 8-SOIC package are identical.

Q5: What is the significance of operating temperature range differences?

A: TLE2082CD operates 0°C to 70°C. LT1057 variants and ADTL082ARZ-REEL extend to -40°C to 85°C or -40°C to 125°C. Extended temperature range is necessary for industrial or automotive applications. Standard commercial temperature range (0°C to 70°C) is sufficient for consumer and general industrial use. LM833DT extends to 105°C maximum, suitable for high-temperature environments.

Q6: Can LM833 Audio amplifiers replace TLE2082CD in precision applications?

A: No. LM833 series are Audio amplifiers with input bias current of 300 nanoamperes, approximately 15,000 times higher than TLE2082CD's 20 picoamperes. This makes LM833 unsuitable for precision measurement, low-noise, or high-impedance source applications. LM833 is appropriate only for audio signal processing where J-FET characteristics are not required.

Q7: What does "Last Time Buy" status mean for TLE2082CD?

A: Last Time Buy indicates Texas Instruments has discontinued production of TLE2082CD. Remaining inventory (2030 pcs) represents the final available stock. Once depleted, the part will no longer be available from the manufacturer. Transition to an Active substitute part (such as TLE2082CDR) is necessary for long-term design continuity and supply chain reliability.

Q8: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the original TLE2082CD. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for most J-FET and Audio variants, with AS358 series rated MSL 3 (168 Hours). MSL rating affects storage and handling requirements; MSL 1 parts have no moisture sensitivity restrictions.

Q9: What is the difference between 8-SOIC and 8-SO package designations?

A: Both designations refer to 8-pin Small Outline Integrated Circuit packages with 0.154" (3.90mm) width. The terms are used interchangeably in industry documentation. All listed parts are mechanically compatible in 8-SOIC footprint.

Q10: Which substitute offers the best low-noise performance?

A: LT1057IS8#TRPBF offers the lowest input offset voltage (220 µV) and extremely low input bias current (7 pA), superior to TLE2082CD's 1.1 mV and 20 pA specifications. However, LT1057 requires minimum 20V supply voltage. For applications requiring low-voltage operation with low-noise performance, TLE2082CDR maintains TLE2082CD's specifications with Active product status.

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