TLE2064AID Equivalent & Substitute Parts

Part Overview

The TLE2064AID is a J-FET input operational amplifier manufactured by Texas Instruments, configured as a 4-circuit device in 14-SOIC surface mount packaging. This component is classified as Last Time Buy, indicating discontinued production status. The TLE2064AID operates across a wide supply voltage range of 7V to 36V with low input bias current of 4 pA, making it suitable for high-impedance signal conditioning applications. Due to its Last Time Buy status, equivalent and substitute parts are necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value	Unit
Amplifier Type	J-FET	—
Number of Circuits	4	—
Slew Rate	3.4	V/µs
Gain Bandwidth Product	2	MHz
Current - Input Bias	4	pA
Voltage - Input Offset	900	µV
Current - Supply (x4 Channels)	1.25	mA
Current - Output / Channel	80	mA
Voltage - Supply Span (Min)	7	V
Voltage - Supply Span (Max)	36	V
Operating Temperature	-40 to 85	°C
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the TLE2064AID are grouped into two primary categories based on amplifier type and electrical compatibility:

Category 1: J-FET Input Amplifiers (Direct Technology Match) Parts maintaining J-FET input architecture: TLE2064AIDR, LF247DT, LF347D, LF347DT, and OP482GSZ-REEL. These substitutes preserve the low input bias current characteristic (3–20 pA range) essential for high-impedance applications. All operate within compatible supply voltage ranges and maintain 4-circuit configuration in 14-SOIC packaging.

Category 2: General Purpose Amplifiers (Functional Equivalents) Parts with general purpose architecture: ADA4004-4ARZ-RL, AS324AMTR-E1, LM324ADT, NCS20074DR2G, and OP4177ARZ. These substitutes provide 4-circuit configuration in 14-SOIC packaging with broader supply voltage compatibility. Input bias current ranges from 5 pA to 500 pA, suitable for applications where J-FET input characteristics are not mandatory.

Key Substitution Criteria:

Number of circuits: 4 (all substitutes)
Package type: 14-SOIC surface mount (all substitutes)
Supply voltage overlap with TLE2064AID range (7–36V minimum requirement)
Input bias current: ≤ 4 pA (Category 1) or ≤ 500 pA (Category 2)
Output current per channel: ≥ 10 mA
Operating temperature: Minimum -40°C, maximum ≥ 85°C
RoHS3 compliance (all substitutes)

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (µV)	Supply Min (V)	Supply Max (V)	Output/Ch (mA)	Temp Range (°C)	Product Status
TLE2064AID	Texas Instruments	J-FET	3.4	2	4	900	7	36	80	-40 to 85	Last Time Buy
TLE2064AIDR	Texas Instruments	J-FET	3.4	2	4	900	7	36	80	-40 to 85	Active
OP482GSZ-REEL	Analog Devices Inc.	J-FET	9	4	3	200	9	36	10	-40 to 85	Active
LF247DT	STMicroelectronics	J-FET	16	4	20	3000	44	44	40	-40 to 105	Active
LF347D	STMicroelectronics	J-FET	16	3	20	3000	44	44	40	0 to 70	Active
LF347DT	STMicroelectronics	J-FET	16	4	20	3000	44	36	40	0 to 70	Active
ADA4004-4ARZ-RL	Analog Devices Inc.	General Purpose	2.7	12	40	40	10	30	10	-40 to 125	Active
AS324AMTR-E1	Diodes Incorporated	General Purpose	—	—	20	2000	3	36	40	-40 to 85	Active
LM324ADT	STMicroelectronics	General Purpose	0.4	1.3	20	2000	3	30	40	0 to 70	Active
NCS20074DR2G	onsemi	General Purpose	2.4	3.2	5	1300	2.7	36	65	-40 to 125	Active
OP4177ARZ	Analog Devices Inc.	General Purpose	0.7	1.3	500	15	5	30	10	-40 to 125	Active

Engineering Selection Recommendations

Primary Recommendation: TLE2064AIDR The TLE2064AIDR is the direct equivalent to TLE2064AID, manufactured by Texas Instruments with identical electrical specifications. This part maintains Active product status with 4,754 units in stock, ensuring long-term availability. All parameters match the original part exactly, including J-FET input architecture, 4 pA input bias current, 3.4 V/µs slew rate, and 7–36V supply range. RoHS3 compliance and MSL 1 rating are maintained. This substitution requires no circuit redesign.

Secondary Recommendation for J-FET Applications: OP482GSZ-REEL The OP482GSZ-REEL provides J-FET input technology with 3 pA input bias current (lower than TLE2064AID), 9 V/µs slew rate, and 4 MHz gain bandwidth product. Supply voltage range is 9–36V, requiring verification that minimum 9V supply is available in the application. This part is Active with 2,300 units in stock. Output current per channel is 10 mA versus 80 mA for TLE2064AID; applications requiring higher output current must be evaluated.

Alternative for General Purpose Applications: NCS20074DR2G The NCS20074DR2G offers general purpose amplification with rail-to-rail output, 5 pA input bias current, and extended temperature range (-40 to 125°C). Supply voltage range is 2.7–36V, providing broader compatibility. This part is Active with 10,100 units in stock. Output current per channel is 65 mA. This substitution is suitable for applications where J-FET input characteristics are not critical and lower supply voltage operation is beneficial.

Compatibility Verification Required:

LF247DT and LF347DT series: Fixed 44V supply requirement incompatible with TLE2064AID's 7V minimum specification
LM324ADT: Reduced operating temperature range (0–70°C) versus TLE2064AID (-40–85°C); unsuitable for extended temperature applications
ADA4004-4ARZ-RL: Maximum supply voltage 30V versus TLE2064AID's 36V; verify application does not require 36V operation

All recommended substitutes maintain RoHS3 compliance, 14-SOIC packaging, and 4-circuit configuration.

Frequently Asked Questions (FAQ)

Q1: Can TLE2064AIDR directly replace TLE2064AID without circuit modification? Yes. TLE2064AIDR is the direct equivalent with identical electrical specifications, supply voltage range, input bias current, and output current ratings. No circuit redesign is required. The only difference is product status: TLE2064AID is Last Time Buy while TLE2064AIDR is Active.

Q2: What is the key difference between J-FET and General Purpose amplifier substitutes? J-FET input amplifiers (TLE2064AIDR, OP482GSZ-REEL, LF247DT, LF347D, LF347DT) feature extremely low input bias current (3–20 pA), suitable for high-impedance signal sources and precision instrumentation. General Purpose amplifiers (ADA4004-4ARZ-RL, AS324AMTR-E1, LM324ADT, NCS20074DR2G, OP4177ARZ) have higher input bias current (5–500 pA) but offer broader supply voltage ranges and higher gain bandwidth products. Selection depends on application requirements for input impedance and signal bandwidth.

Q3: Why do LF247DT and LF347DT show 44V supply specification? The LF247DT and LF347DT are specified with ±22V dual supply operation, resulting in a 44V total supply span. The TLE2064AID operates on single or dual supplies with 7–36V range. These parts are not recommended as direct substitutes due to incompatible supply voltage specifications.

Q4: Is OP482GSZ-REEL suitable for applications requiring 80 mA output current per channel? No. OP482GSZ-REEL provides 10 mA output current per channel, significantly lower than TLE2064AID's 80 mA. Applications requiring high output current must use TLE2064AIDR or NCS20074DR2G (65 mA per channel).

Q5: Can LM324ADT be used in applications operating below 0°C? No. LM324ADT is specified for 0–70°C operating temperature, while TLE2064AID operates from -40–85°C. LM324ADT is unsuitable for extended low-temperature applications. Use TLE2064AIDR, OP482GSZ-REEL, or NCS20074DR2G for -40°C minimum temperature requirement.

Q6: What is the significance of MSL (Moisture Sensitivity Level) rating? MSL 1 (Unlimited) indicates the component has no moisture sensitivity restrictions and requires no special handling or baking procedures before soldering. All recommended J-FET substitutes (TLE2064AIDR, OP482GSZ-REEL, LF247DT, LF347D, LF347DT) maintain MSL 1 rating. General Purpose substitutes NCS20074DR2G and AS324AMTR-E1 also maintain MSL 1. Only ADA4004-4ARZ-RL and OP4177ARZ have MSL 3 (168 Hours), requiring controlled storage and handling.

Q7: Does NCS20074DR2G's rail-to-rail output provide advantages over TLE2064AID? Rail-to-rail output capability allows the amplifier to swing closer to supply rails, maximizing output voltage swing in low-supply-voltage applications. TLE2064AID does not specify rail-to-rail output. This feature is beneficial in 2.7V minimum supply applications but provides no advantage in standard 7–36V supply range operation.

Q8: Are all substitute parts available in 14-SOIC packaging? Yes. All substitute parts listed are available in 14-SOIC (0.154", 3.90mm Width) surface mount packaging, maintaining PCB layout compatibility with TLE2064AID.

Q9: Which substitute offers the best inventory availability? LM324ADT has the highest inventory with 55,200 units in stock, followed by LF347DT with 27,321 units. TLE2064AIDR has 4,754 units available. For immediate procurement, LM324ADT provides maximum supply security, though it requires temperature range verification for the application.

Q10: Can multiple substitute parts be used interchangeably within the same design? No. Each substitute has different electrical characteristics (slew rate, gain bandwidth product, input offset voltage, output current). Once a substitute is selected and validated for the application, it should be maintained throughout production. Changing substitutes mid-production requires re-qualification and testing.

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