TLE2064MD Equivalent & Substitute Parts

Part Overview

The TLE2064MD is a J-FET input operational amplifier containing four independent circuits in a 14-SOIC surface mount package, manufactured by Texas Instruments. This device is classified as Last Time Buy, indicating discontinued production with limited availability. The TLE2064MD operates across a wide supply voltage range of 7V to 36V and maintains ultra-low input bias current of 4 pA, making it suitable for high-impedance signal conditioning applications. Equivalent and substitute parts are necessary due to product discontinuation and to ensure design flexibility across manufacturing sources and packaging formats.

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	—

Substitute Part Grouping Explanation

Substitution of the TLE2064MD is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:

Critical Parameters for Substitution:

Amplifier Type: J-FET (ultra-low input bias current requirement)
Number of Circuits: 4 (functional equivalence)
Package / Case: 14-SOIC form factor (mechanical compatibility)
Mounting Type: Surface Mount (assembly compatibility)
Supply Voltage Range: Minimum 7V to Maximum 36V (operational envelope)
Operating Temperature Range: Minimum -55°C to Maximum 125°C (environmental specification)

Substitute parts are grouped into two categories:

Category 1 - Direct Functional Equivalents (J-FET Type, Identical Supply Range): TLE2064MDR represents the same base product in alternative packaging (Tape & Reel format). This part maintains identical electrical specifications and supply voltage range.

Category 2 - J-FET Alternatives with Modified Specifications: LF247DT, LF347D, LF347DT, and TL074IYDT are J-FET amplifiers with four circuits in 14-SOIC packaging. These parts exhibit higher slew rates (13–16 V/µs) and gain bandwidth products (3–4 MHz) compared to the TLE2064MD. However, they operate within the 6V to 36V supply range, which encompasses the TLE2064MD specification. Input bias current remains at 20 pA, which is higher than the TLE2064MD but acceptable for most applications not requiring ultra-low bias current.

Category 3 - J-FET Alternatives with Restricted Temperature Range: TL084ACDT and TL084AIDT are automotive-qualified J-FET amplifiers with AEC-Q100 certification. These parts operate at 0°C to 70°C (TL084ACDT) or -40°C to 105°C (TL084AIDT), which does not fully cover the TLE2064MD extended range of -55°C to 125°C. TL084BIDT offers improved input offset voltage (1 mV vs. 3 mV) with identical temperature range to TL084AIDT.

Category 4 - General Purpose Alternatives: LM2902DR2G and OP4177ARZ-REEL are general-purpose amplifiers with four circuits. These parts do not meet the J-FET input requirement and exhibit significantly different electrical characteristics (higher input bias current: 90 nA and 500 pA respectively). These are listed as alternatives only when J-FET input characteristics are not mandatory.

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)	Packaging	Product Status
TLE2064MD	Texas Instruments	J-FET	3.4	2	4	0.9	7	36	-55 to 125	Tube	Last Time Buy
TLE2064MDR	Texas Instruments	J-FET	3.4	2	4	0.9	7	36	-55 to 125	Tape & Reel	Active
LF247DT	STMicroelectronics	J-FET	16	4	20	3	44	44	-40 to 105	Tape & Reel	Active
LF347D	STMicroelectronics	J-FET	16	3	20	3	44	44	0 to 70	Tube	Active
LF347DT	STMicroelectronics	J-FET	16	4	20	3	44	44	0 to 70	Cut Tape & Digi-Reel	Active
LM2902DR2G	onsemi	General Purpose	—	1	90000	2	3	32	-40 to 105	Cut Tape & Digi-Reel	Active
OP4177ARZ-REEL	Analog Devices Inc.	General Purpose	0.7	1.3	500	0.015	5	30	-40 to 125	Cut Tape & Digi-Reel	Active
TL074IYDT	STMicroelectronics	J-FET	13	3	20	3	6	36	-40 to 105	Cut Tape & Digi-Reel	Active
TL084ACDT	STMicroelectronics	J-FET	16	4	20	3	6	36	0 to 70	Cut Tape & Digi-Reel	Active
TL084AIDT	STMicroelectronics	J-FET	16	4	20	3	6	36	-40 to 105	Cut Tape & Digi-Reel	Active
TL084BIDT	STMicroelectronics	J-FET	16	4	20	1	6	36	-40 to 105	Cut Tape & Digi-Reel	Active

Engineering Selection Recommendations

Primary Recommendation - Identical Specifications: TLE2064MDR is the direct equivalent of TLE2064MD, differing only in packaging format (Tape & Reel vs. Tube). This part maintains all electrical specifications, supply voltage range, and operating temperature range. Selection of TLE2064MDR is appropriate when design requirements mandate the exact electrical performance of the original part and when Tape & Reel packaging is acceptable for manufacturing processes.

Secondary Recommendation - J-FET Alternatives with Enhanced Performance: TL084AIDT and TL084BIDT are suitable substitutes when the application can tolerate higher slew rates (16 V/µs vs. 3.4 V/µs) and gain bandwidth products (4 MHz vs. 2 MHz). Both parts maintain the 6V to 36V supply range and offer -40°C to 105°C operating temperature. TL084BIDT provides superior input offset voltage specification (1 mV vs. 3 mV). Both parts carry AEC-Q100 automotive qualification. These parts are appropriate for applications not requiring the extended -55°C lower temperature limit of the TLE2064MD.

Tertiary Recommendation - J-FET Alternatives with Supply Voltage Limitation: TL074IYDT operates within 6V to 36V supply range and -40°C to 105°C temperature range. This part is suitable when the lower 7V minimum supply voltage of the TLE2064MD is not required and when extended low-temperature operation below -40°C is not necessary.

Not Recommended for Direct Substitution: LM2902DR2G and OP4177ARZ-REEL are general-purpose amplifiers lacking J-FET input characteristics. These parts exhibit input bias currents of 90 nA and 500 pA respectively, compared to 4 pA for the TLE2064MD. Selection of these parts is appropriate only when ultra-low input bias current is not a design requirement.

Frequently Asked Questions (FAQ)

Q: Can TLE2064MDR be used as a direct replacement for TLE2064MD? A: Yes. TLE2064MDR is electrically identical to TLE2064MD. The only difference is packaging format: TLE2064MD is supplied in Tube packaging, while TLE2064MDR is supplied in Tape & Reel format. Both parts maintain identical electrical specifications, supply voltage range (7V to 36V), and operating temperature range (-55°C to 125°C). Selection depends on manufacturing assembly requirements.

Q: What is the primary difference between TLE2064MD and TL084AIDT? A: The primary differences are slew rate (3.4 V/µs vs. 16 V/µs), gain bandwidth product (2 MHz vs. 4 MHz), and operating temperature range (-55°C to 125°C vs. -40°C to 105°C). Both are J-FET amplifiers with four circuits in 14-SOIC packaging and operate within 6V to 36V supply range. TL084AIDT is suitable when higher slew rate and bandwidth are beneficial and when the extended -55°C lower temperature limit is not required.

Q: Why is input bias current important for substitution? A: Input bias current determines the amplifier's suitability for high-impedance signal conditioning applications. The TLE2064MD specifies 4 pA input bias current, which is ultra-low. Most J-FET alternatives (LF247DT, LF347D, LF347DT, TL074IYDT, TL084 series) specify 20 pA. General-purpose alternatives (LM2902DR2G, OP4177ARZ-REEL) specify 90 nA and 500 pA respectively. Selection must ensure input bias current meets application requirements.

Q: Can LM2902DR2G replace TLE2064MD? A: LM2902DR2G is a general-purpose amplifier, not a J-FET amplifier. It exhibits input bias current of 90 nA, which is 22,500 times higher than the TLE2064MD (4 pA). This part is suitable only when ultra-low input bias current is not a design requirement. The supply voltage range (3V to 32V) does not fully encompass the TLE2064MD specification (7V to 36V).

Q: What does AEC-Q100 qualification mean? A: AEC-Q100 is an automotive qualification standard indicating the part has been tested and approved for automotive applications. TL084ACDT, TL084AIDT, and TL084BIDT carry this qualification. This certification is relevant only when automotive-grade components are required by design specification or customer requirement.

Q: Why do some substitutes specify 44V supply voltage instead of a range? A: LF247DT, LF347D, and LF347DT specify "Voltage - Supply Span (Min): 44V" and "Voltage - Supply Span (Max): 44V," indicating a fixed dual-supply configuration (±22V). This differs from the TLE2064MD single-supply specification of 7V to 36V. These parts are suitable for dual-supply applications but require circuit redesign for single-supply operation.

Q: Is packaging format (Tube vs. Tape & Reel) electrically significant? A: No. Packaging format is a manufacturing and logistics consideration, not an electrical specification. Tube and Tape & Reel packaging contain identical components. Selection depends on assembly equipment compatibility and manufacturing process requirements.

Q: Can TL084ACDT be used in applications requiring -55°C operation? A: No. TL084ACDT operates from 0°C to 70°C, which does not include -55°C. If extended low-temperature operation to -55°C is required, TLE2064MDR or TL084AIDT must be selected. TL084AIDT operates from -40°C to 105°C, which covers most extended-temperature requirements but does not reach -55°C.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message