TLE2064CD Equivalent & Substitute Parts

Part Overview

The TLE2064CD 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 inventory availability. The TLE2064CD operates across a wide supply voltage range of 7V to 36V and is designed for applications requiring low input bias current and moderate bandwidth performance. Due to its Last Time Buy status, identifying equivalent substitute parts with compatible electrical and mechanical specifications is essential for design continuity and long-term component sourcing.

Key Parameters

Parameter	TLE2064CD 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	0 to 70	°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 TLE2064CD are grouped based on strict compatibility with the following critical parameters:

Primary Compatibility Criteria:

Amplifier Type: J-FET input configuration
Number of Circuits: 4 independent amplifier circuits
Package / Case: 14-SOIC surface mount form factor
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Secondary Performance Parameters (must be equal to or exceed TLE2064CD specifications):

Slew Rate: minimum 3.4 V/µs
Gain Bandwidth Product: minimum 2 MHz
Current - Input Bias: maximum 4 pA
Voltage - Input Offset: maximum 900 µV
Current - Supply: maximum 1.25 mA (x4 Channels)
Current - Output / Channel: minimum 80 mA
Voltage - Supply Span: minimum 7V to maximum 36V
Operating Temperature: 0°C to 70°C minimum coverage

Substitutes are categorized into two groups: Direct Equivalents (identical electrical specifications and packaging) and Enhanced Alternatives (superior performance characteristics while maintaining package compatibility).

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 Span (V)	Temp Range (°C)	Package	Product Status
TLE2064CD	Texas Instruments	J-FET	3.4	2	4	900	1.25	80	7–36	0–70	14-SOIC	Last Time Buy
TLE2064CDR	Texas Instruments	J-FET	3.4	2	4	900	1.25	80	7–36	0–70	14-SOIC	Active
LF347M/NOPB	Texas Instruments	J-FET	13	4	50	5000	7.2	—	10–36	0–70	14-SOIC	Active
LF347MX/NOPB	Texas Instruments	J-FET	13	4	50	5000	7.2	—	10–36	0–70	14-SOIC	Active
LF444CM/NOPB	Texas Instruments	J-FET	1	1	10	3000	0.6	14	36–36	0–70	14-SOIC	Active
LF444CMX/NOPB	Texas Instruments	J-FET	1	1	10	3000	0.6	14	36–36	0–70	14-SOIC	Active
LF247DT	STMicroelectronics	J-FET	16	4	20	3000	1.4	40	44–44	−40–105	14-SO	Active
LF347D	STMicroelectronics	J-FET	16	3	20	3000	1.4	40	44–44	0–70	14-SO	Active
LF347DT	STMicroelectronics	J-FET	16	4	20	3000	1.4	40	44–44	0–70	14-SO	Active
NCS20074DR2G	onsemi	General Purpose	2.4	3.2	5	1300	0.42	65	2.7–36	−40–125	14-SOIC	Active
TL074IYDT	STMicroelectronics	J-FET	13	3	20	3000	1.4	40	6–36	−40–105	14-SO	Active

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Substitute):

The TLE2064CDR is the manufacturer-recommended direct equivalent to the TLE2064CD. Both parts share identical electrical specifications, including slew rate (3.4 V/µs), gain bandwidth product (2 MHz), input bias current (4 pA), and supply voltage range (7V–36V). The TLE2064CDR differs only in packaging format (Tape & Reel versus Tube) and product status (Active versus Last Time Buy). This part maintains full compatibility with existing designs and offers superior availability with 3695 units in stock compared to 2500 units of the original part. Both parts are ROHS3 compliant with MSL 1 rating.

Enhanced Performance Alternatives:

The LF347M/NOPB and LF347MX/NOPB offer enhanced performance with 4 MHz gain bandwidth product and 13 V/µs slew rate, exceeding TLE2064CD specifications. However, these parts require minimum 10V supply voltage (versus 7V for TLE2064CD) and exhibit higher input bias current (50 pA versus 4 pA). These alternatives are suitable for applications where higher bandwidth and slew rate are beneficial and supply voltage constraints permit 10V minimum operation.

Low-Power Alternative:

The LF444CM/NOPB and LF444CMX/NOPB provide ultra-low supply current (600 µA total versus 1.25 mA for TLE2064CD), making them suitable for battery-powered or power-constrained applications. These parts operate at fixed ±18V supply only and exhibit reduced output current capability (14 mA versus 80 mA), limiting their use to low-current signal conditioning applications.

Extended Temperature Range Options:

The LF247DT, LF347D, LF347DT, and TL074IYDT from STMicroelectronics provide extended operating temperature ranges (−40°C to 105°C) compared to TLE2064CD (0°C to 70°C). These parts feature enhanced slew rates (13–16 V/µs) and are suitable for industrial and automotive applications requiring wider temperature operation. Note that STMicroelectronics parts use 14-SO package designation (functionally equivalent to 14-SOIC).

Rail-to-Rail General Purpose Alternative:

The NCS20074DR2G from onsemi is a general-purpose (non-JFET) amplifier with rail-to-rail output capability and extended temperature range (−40°C to 125°C). This part offers the widest supply voltage range (2.7V–36V) and lowest minimum supply voltage, enabling single-supply operation. However, it does not employ J-FET input architecture and exhibits different input characteristics (5 pA bias current, 1.3 mV offset voltage). This part is suitable only for applications where J-FET input characteristics are not required.

Product Status Consideration:

All recommended substitutes carry Active product status, ensuring long-term availability and continued manufacturing support. The TLE2064CD's Last Time Buy status necessitates migration to an active equivalent for new designs or long-term production requirements.

Frequently Asked Questions (FAQ)

Q1: Can I directly replace TLE2064CD with TLE2064CDR in my existing design?

A: Yes. The TLE2064CDR is the direct equivalent with identical electrical specifications. The only difference is packaging format (Tape & Reel versus Tube). Both parts are pin-compatible, functionally equivalent, and require no circuit modifications. TLE2064CDR is the recommended substitute due to Active product status and superior inventory availability.

Q2: What are the key differences between TLE2064CD and LF347M/NOPB?

A: The LF347M/NOPB offers superior performance with 4 MHz bandwidth (versus 2 MHz) and 13 V/µs slew rate (versus 3.4 V/µs). However, it requires minimum 10V supply voltage and exhibits 50 pA input bias current (versus 4 pA). Use LF347M/NOPB only if your application benefits from higher bandwidth and your power supply can provide minimum 10V.

Q3: Can I use LF444CM/NOPB as a substitute in a high-current output application?

A: No. The LF444CM/NOPB provides only 14 mA output current per channel, compared to 80 mA for TLE2064CD. This part is suitable only for low-current signal conditioning. For applications requiring 80 mA output capability, use TLE2064CDR or LF347-series alternatives.

Q4: Are STMicroelectronics LF347D and LF347DT compatible with TLE2064CD?

A: Both parts are functionally compatible in 14-SOIC package form factor and provide J-FET input amplification. However, they require fixed ±22V supply (44V span) compared to TLE2064CD's 7V–36V range. STMicroelectronics parts offer extended temperature operation (−40°C to 105°C) and higher slew rates (16 V/µs). Use these parts only if your design operates at ±22V supply and requires extended temperature range.

Q5: What is the difference between 14-SOIC and 14-SO package designations?

A: 14-SOIC and 14-SO are functionally equivalent surface mount packages with identical pin pitch, lead spacing, and PCB footprint. The designations reflect different manufacturer naming conventions. Parts specified as 14-SO (STMicroelectronics) are directly interchangeable with 14-SOIC (Texas Instruments) on the same PCB layout.

Q6: Why does NCS20074DR2G have different input bias current specifications?

A: The NCS20074DR2G uses general-purpose CMOS input architecture rather than J-FET input. CMOS inputs exhibit different bias current characteristics (5 pA versus 4 pA for J-FET). This part is suitable only for applications where J-FET input characteristics are not critical to circuit performance.

Q7: Can I use TLE2064CDR in a single-supply application?

A: No. The TLE2064CDR requires minimum 7V supply span, meaning it operates with dual supplies (e.g., ±3.5V) or single supply with minimum 7V. For true single-supply operation from 2.7V, use NCS20074DR2G, which supports rail-to-rail single-supply operation.

Q8: What is the significance of ROHS3 compliance and MSL 1 rating?

A: ROHS3 compliance indicates the part contains no restricted hazardous substances and meets environmental regulations for electronic components. MSL 1 (Unlimited) rating means the part has unlimited shelf life and requires no special moisture control during storage or handling, simplifying inventory management and reducing component waste.

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