TLE2064AMDRG4 Equivalent & Substitute Parts

Part Overview

The TLE2064AMDRG4 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 with limited inventory availability. The TLE2064AMDRG4 operates across a wide supply voltage range of 7V to 36V and maintains performance across the extended industrial temperature range of -55°C to 125°C. Identification of equivalent and substitute parts is necessary due to product discontinuation and the need for long-term design continuity and supply chain alternatives.

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	-55 to 125	°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 TLE2064AMDRG4 are grouped based on strict alignment with the following critical parameters: amplifier type (J-FET), number of circuits (4), package type (14-SOIC surface mount), and electrical operating ranges (supply voltage and temperature). The substitution logic recognizes two distinct categories:

Category 1: Direct Equivalents (Texas Instruments TLE2064 Series) The TLE2064AMDR represents the active production equivalent of the TLE2064AMDRG4. Both parts share identical electrical specifications, J-FET architecture, and packaging. The primary difference is product status: TLE2064AMDR is Active, while TLE2064AMDRG4 is Last Time Buy. This substitution is valid for all applications where the original part was specified.

Category 2: J-FET Operational Amplifiers with Enhanced Performance Parts including LF247DT, LF347D, LF347DT, TL074IYDT, TL084ACDT, TL084AIDT, and TL084BIDT maintain J-FET input architecture and 4-circuit configuration in 14-SOIC packaging. These substitutes feature higher slew rates (13V/µs to 16V/µs versus 3.4V/µs) and increased gain bandwidth products (3MHz to 4MHz versus 2MHz). All operate within compatible supply voltage ranges (6V to 36V or 44V fixed). These parts are suitable for applications where the original specifications represent design margins rather than hard requirements.

Category 3: General Purpose Amplifiers (TS514 Series) The TS514AIDT and TS514IDT represent general-purpose amplifier alternatives with 4-circuit configuration and 14-SOIC packaging. These parts differ fundamentally in amplifier type (General Purpose versus J-FET) and exhibit different electrical characteristics including lower input bias current (50nA versus 4pA) and reduced supply current (500µA versus 1.25mA). These substitutes are applicable only when J-FET input characteristics are not essential to circuit function.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (µV)	Supply Current (mA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Product Status
TLE2064AMDRG4	Texas Instruments	J-FET	3.4	2	4	900	1.25	80	7	36	-55 to 125	Last Time Buy
TLE2064AMDR	Texas Instruments	J-FET	3.4	2	4	900	1.25	80	7	36	-55 to 125	Active
LF247DT	STMicroelectronics	J-FET	16	4	20	3000	1.4	40	44	44	-40 to 105	Active
LF347D	STMicroelectronics	J-FET	16	3	20	3000	1.4	40	44	44	0 to 70	Active
LF347DT	STMicroelectronics	J-FET	16	4	20	3000	1.4	40	44	44	0 to 70	Active
TL074IYDT	STMicroelectronics	J-FET	13	3	20	3000	1.4	40	6	36	-40 to 105	Active
TL084ACDT	STMicroelectronics	J-FET	16	4	20	3000	1.4	40	6	36	0 to 70	Active
TL084AIDT	STMicroelectronics	J-FET	16	4	20	3000	1.4	40	6	36	-40 to 105	Active
TL084BIDT	STMicroelectronics	J-FET	16	4	20	1000	1.4	40	6	36	-40 to 105	Active
TS514AIDT	STMicroelectronics	General Purpose	1.5	3	50000	500	0.5	23	6	30	-40 to 125	Active
TS514IDT	STMicroelectronics	General Purpose	1.5	3	50000	500	0.5	23	6	30	-40 to 125	Active

Engineering Selection Recommendations

Primary Recommendation: TLE2064AMDR The TLE2064AMDR is the direct active production equivalent of the TLE2064AMDRG4. This part maintains 100% electrical and mechanical compatibility, identical specifications across all parameters, and identical 14-SOIC packaging. Selection of TLE2064AMDR is appropriate for all applications currently using TLE2064AMDRG4. Both parts carry ROHS3 compliance, MSL Level 1, and REACH Unaffected status. The transition from Last Time Buy to Active status ensures continued supply availability.

Secondary Recommendation: TL084AIDT The TL084AIDT is suitable for applications where enhanced performance margins are acceptable. This part maintains J-FET input architecture, 4-circuit configuration, and 14-SOIC packaging. The TL084AIDT operates across the 6V to 36V supply range, matching the original part's operating envelope. Operating temperature range extends to -40°C to 105°C, covering the majority of the original -55°C to 125°C specification. The TL084AIDT carries AEC-Q100 automotive qualification and ROHS3 compliance. Higher slew rate (16V/µs versus 3.4V/µs) and increased gain bandwidth product (4MHz versus 2MHz) provide design margin for signal processing applications. Input bias current increases to 20pA and input offset voltage to 3mV; these changes are acceptable in applications where the original specifications represented design margins.

Tertiary Recommendation: TL074IYDT The TL074IYDT provides J-FET input performance with supply voltage compatibility (6V to 36V) matching the original part. This part operates across -40°C to 105°C, suitable for most industrial applications. The TL074IYDT features 13V/µs slew rate and 3MHz gain bandwidth product, representing moderate performance enhancement over the original specification. This part is appropriate for applications where the original 3.4V/µs slew rate and 2MHz bandwidth represent design margins.

Not Recommended for Direct Substitution: TS514 Series The TS514AIDT and TS514IDT employ general-purpose amplifier architecture rather than J-FET input design. These parts exhibit fundamentally different input characteristics (50nA input bias current versus 4pA) and reduced output current capability (23mA versus 80mA). Selection of TS514 series parts is appropriate only when circuit design does not depend on J-FET input characteristics and when reduced output current is acceptable.

Not Recommended: LF247DT and LF347 Series The LF247DT, LF347D, and LF347DT operate at fixed 44V supply voltage, incompatible with the original part's 7V to 36V operating range. These parts are suitable only for applications specifically designed for 44V operation.

Frequently Asked Questions (FAQ)

Q: Can TLE2064AMDR be used as a direct replacement for TLE2064AMDRG4? A: Yes. The TLE2064AMDR is the active production equivalent with identical electrical specifications, J-FET architecture, 4-circuit configuration, and 14-SOIC packaging. All parameters including slew rate, gain bandwidth product, input bias current, supply voltage range, and operating temperature are identical. The only difference is product status: TLE2064AMDR is Active while TLE2064AMDRG4 is Last Time Buy.

Q: What is the primary difference between TLE2064AMDRG4 and TL084AIDT? A: Both parts maintain J-FET input architecture and 4-circuit 14-SOIC configuration. The TL084AIDT features higher slew rate (16V/µs versus 3.4V/µs) and increased gain bandwidth product (4MHz versus 2MHz). Input bias current increases from 4pA to 20pA, and input offset voltage increases from 900µV to 3mV. The TL084AIDT operates across -40°C to 105°C versus the original -55°C to 125°C. Supply voltage range is 6V to 36V, matching the original part.

Q: Are the TS514 series parts suitable replacements? A: The TS514AIDT and TS514IDT are general-purpose amplifiers, not J-FET input devices. These parts exhibit 50nA input bias current (versus 4pA in the original) and reduced output current (23mA versus 80mA). These parts are suitable only when circuit design does not require J-FET input characteristics and when reduced output current is acceptable.

Q: What is the significance of the 14-SOIC package specification? A: All substitute parts listed maintain the 14-SOIC (0.154", 3.90mm Width) surface mount package. This ensures mechanical and electrical compatibility with existing printed circuit board layouts. Package compatibility is a fundamental requirement for all listed substitutes.

Q: Can LF247DT or LF347 series parts be used? A: The LF247DT, LF347D, and LF347DT operate at fixed 44V supply voltage. These parts are incompatible with the original part's 7V to 36V operating range and are suitable only for applications specifically designed for 44V operation.

Q: What compliance certifications apply to substitute parts? A: All listed substitute parts carry ROHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and REACH Unaffected status, matching the original TLE2064AMDRG4. The TL084 series parts (TL084ACDT, TL084AIDT, TL084BIDT) carry additional AEC-Q100 automotive qualification.

Q: How does operating temperature range affect substitution? A: The original TLE2064AMDRG4 operates across -55°C to 125°C. Most J-FET substitutes operate across -40°C to 105°C or 0°C to 70°C. Substitution is valid when the application's actual operating temperature falls within the substitute part's specified range. Applications requiring -55°C operation require TLE2064AMDR or TS514 series parts.

Q: What is the difference between TL084AIDT and TL084BIDT? A: Both parts share identical electrical specifications except for input offset voltage: TL084AIDT specifies 3mV maximum, while TL084BIDT specifies 1mV maximum. Both operate across -40°C to 105°C and carry AEC-Q100 automotive qualification. The TL084BIDT is appropriate for applications requiring tighter input offset voltage specification.

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