TLE2064AMD Equivalent & Substitute Parts

Part Overview

The TLE2064AMD is a J-FET input operational amplifier integrated circuit manufactured by Texas Instruments, configured as a 4-circuit device in a 14-SOIC surface mount package. This component is classified as a Last Time Buy product, indicating discontinued production status. The TLE2064AMD provides low input bias current characteristics suitable for precision signal conditioning and high-impedance input applications across industrial and instrumentation systems.

Identification of equivalent and substitute parts is necessary due to the Last Time Buy status of the TLE2064AMD. Alternative components with compatible electrical and mechanical specifications ensure design continuity and supply chain reliability for applications requiring J-FET amplifier functionality.

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 TLE2064AMD are evaluated based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

Amplifier Type: J-FET configuration for low input bias current performance
Number of Circuits: 4-circuit configuration
Package / Case: 14-SOIC surface mount form factor
Mounting Type: Surface mount compatibility
Supply Voltage Range: Minimum 7V to maximum 36V operational span

Secondary Compatibility Parameters:

Slew Rate: 3.4 V/µs baseline performance
Gain Bandwidth Product: 2 MHz baseline performance
Input Bias Current: 4 pA baseline specification
Input Offset Voltage: 900 µV baseline specification
Output Current per Channel: 80 mA baseline specification

Substitute parts are grouped into two categories:

Category 1: Direct Equivalents (Identical Amplifier Type) Parts maintaining J-FET amplifier architecture with compatible supply voltage ranges and 14-SOIC packaging. These include TLE2064AMDR, LF247DT, LF347D, LF347DT, TL074IYDT, TL084ACDT, TL084AIDT, and TL084BIDT.

Category 2: Functional Alternatives (Different Amplifier Type) Parts with General Purpose amplifier architecture that maintain 4-circuit configuration and 14-SOIC packaging but operate with different input bias current and offset voltage characteristics. These include OP4177ARZ and TS514AIDT.

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)	Temp Range (°C)	Product Status
TLE2064AMD	Texas Instruments	J-FET	3.4	2	4	900	7	36	-55 to 125	Last Time Buy
TLE2064AMDR	Texas Instruments	J-FET	3.4	2	4	900	7	36	-55 to 125	Active
LF247DT	STMicroelectronics	J-FET	16	4	20	3000	44	44	-40 to 105	Active
LF347D	STMicroelectronics	J-FET	16	3	20	3000	44	44	0 to 70	Active
LF347DT	STMicroelectronics	J-FET	16	4	20	3000	44	44	0 to 70	Active
OP4177ARZ	Analog Devices Inc.	General Purpose	0.7	1.3	500	15	5	30	-40 to 125	Active
TL074IYDT	STMicroelectronics	J-FET	13	3	20	3000	6	36	-40 to 105	Active
TL084ACDT	STMicroelectronics	J-FET	16	4	20	3000	6	36	0 to 70	Active
TL084AIDT	STMicroelectronics	J-FET	16	4	20	3000	6	36	-40 to 105	Active
TL084BIDT	STMicroelectronics	J-FET	16	4	20	1000	6	36	-40 to 105	Active
TS514AIDT	STMicroelectronics	General Purpose	1.5	3	50000	500	6	30	-40 to 125	Active

Engineering Selection Recommendations

Primary Recommendation: TLE2064AMDR

The TLE2064AMDR is the direct equivalent of the TLE2064AMD, manufactured by Texas Instruments with identical electrical specifications and 14-SOIC packaging. The TLE2064AMDR maintains Active product status and is available in Tape & Reel packaging format. This part provides complete functional and mechanical compatibility with no design modifications required. Selection of TLE2064AMDR is appropriate for applications requiring exact parameter matching and Texas Instruments sourcing continuity.

Secondary Recommendations: J-FET Amplifier Alternatives

For applications where supply voltage flexibility is required, the following J-FET amplifier alternatives maintain the 4-circuit, 14-SOIC configuration with Active product status:

TL084AIDT and TL084BIDT provide enhanced slew rate performance (16 V/µs versus 3.4 V/µs) and higher gain bandwidth product (4 MHz versus 2 MHz). Both parts support the full -40°C to 105°C operating temperature range and operate across 6V to 36V supply span. TL084BIDT offers improved input offset voltage specification (1 mV versus 3 mV). Both parts carry AEC-Q100 automotive qualification and are available in high inventory quantities.

TL074IYDT provides intermediate slew rate performance (13 V/µs) and 3 MHz gain bandwidth product with -40°C to 105°C temperature range and 6V to 36V supply compatibility. This part is suitable for applications requiring performance enhancement over the baseline TLE2064AMD specification.

LF347DT offers 16 V/µs slew rate and 4 MHz gain bandwidth product with Active status and high inventory availability. Operating temperature range is limited to 0°C to 70°C, and supply voltage is fixed at 44V, restricting application scope compared to the TLE2064AMD.

Alternative Category: General Purpose Amplifiers

OP4177ARZ and TS514AIDT are General Purpose amplifier configurations that maintain 4-circuit, 14-SOIC packaging and Active product status. These parts are suitable only for applications where J-FET input bias current performance is not critical. OP4177ARZ provides extended temperature range (-40°C to 125°C) and 5V to 30V supply compatibility. TS514AIDT supports -40°C to 125°C operation and 6V to 30V supply range but exhibits significantly higher input bias current (50 nanoamperes versus 4 picoamperes).

Compliance and Certification Status

All recommended substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited) classification, matching the TLE2064AMD environmental specifications. All parts carry EAR99 export classification and are REACH unaffected.

Frequently Asked Questions (FAQ)

Q: Can TLE2064AMDR be used as a direct replacement for TLE2064AMD?

A: Yes. The TLE2064AMDR is manufactured by Texas Instruments with identical electrical specifications, 14-SOIC packaging, and surface mount configuration. The only difference is packaging format (Tape & Reel versus tube). No circuit modifications are required.

Q: What is the primary difference between TLE2064AMD and the STMicroelectronics TL084 series?

A: The TL084 series (TL084ACDT, TL084AIDT, TL084BIDT) provides higher slew rate (16 V/µs versus 3.4 V/µs) and higher gain bandwidth product (4 MHz versus 2 MHz). Input bias current is higher (20 pA versus 4 pA), and input offset voltage is higher (1-3 mV versus 900 µV). The TL084 series supports the same 6V to 36V supply range and 14-SOIC packaging.

Q: Are the LF247DT and LF347DT suitable replacements for the TLE2064AMD?

A: The LF247DT and LF347DT maintain J-FET amplifier architecture and 14-SOIC packaging but operate at a fixed 44V supply voltage, which differs from the TLE2064AMD's 7V to 36V range. These parts are suitable only for applications with 44V supply availability. Both parts provide higher slew rate (16 V/µs) and higher gain bandwidth product (3-4 MHz) compared to the TLE2064AMD.

Q: What is the difference between J-FET and General Purpose amplifier types?

A: J-FET amplifiers (TLE2064AMD, TL084 series, LF347 series) provide extremely low input bias current (4-20 pA range), making them suitable for high-impedance input applications. General Purpose amplifiers (OP4177ARZ, TS514AIDT) have higher input bias current (500 pA to 50 nA range) but may offer other performance advantages. Selection depends on application input impedance requirements.

Q: Can OP4177ARZ or TS514AIDT replace the TLE2064AMD?

A: These General Purpose amplifiers maintain 4-circuit, 14-SOIC packaging and Active product status but are not recommended as direct replacements. Input bias current is significantly higher (500 pA and 50 nA respectively versus 4 pA), which affects high-impedance input circuit performance. Use these parts only when input bias current specification is not critical to application function.

Q: What is the significance of the Last Time Buy status for TLE2064AMD?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of the TLE2064AMD. Existing inventory is available but will not be replenished. For new designs or long-term production requirements, selection of an Active status substitute part (such as TLE2064AMDR or TL084AIDT) is necessary to ensure supply continuity.

Q: Are all substitute parts available in 14-SOIC packaging?

A: Yes. All substitute parts listed maintain the 14-SOIC (0.154", 3.90mm Width) surface mount package form factor, ensuring mechanical compatibility with existing printed circuit board layouts. Packaging format variations (Tube, Tape & Reel, Cut Tape) do not affect electrical performance or board-level compatibility.

Q: What is the temperature range consideration when selecting a substitute?

A: The TLE2064AMD operates across -55°C to 125°C. Some substitute parts have narrower temperature ranges: LF347D and LF347DT operate 0°C to 70°C, and TL084ACDT operates 0°C to 70°C. For applications requiring full -55°C to 125°C operation, select TLE2064AMDR, TL084AIDT, TL084BIDT, OP4177ARZ, or TS514AIDT.

Q: Which substitute provides the best performance improvement over TLE2064AMD?

A: The TL084AIDT and TL084BIDT provide the most significant performance enhancement, offering 16 V/µs slew rate (4.7× improvement), 4 MHz gain bandwidth product (2× improvement), and lower input offset voltage (1-3 mV versus 900 µV). These parts maintain J-FET input bias current performance (20 pA) and support the full 6V to 36V supply range with -40°C to 105°C temperature operation.

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