TLE2064CDRG4 Equivalent & Substitute Parts

Part Overview

The TLE2064CDRG4 is a J-FET input operational amplifier manufactured by Texas Instruments, configured as a 4-circuit integrated circuit in 14-SOIC surface mount packaging. This device is classified as obsolete, though 3290 units remain in stock as new original inventory. The TLE2064CDRG4 is designed for applications requiring low input bias current and moderate bandwidth performance in a compact form factor.

Due to the obsolete product status of the TLE2064CDRG4, identification of equivalent and substitute parts is necessary for design continuity, procurement planning, and long-term system reliability. Active alternative products with comparable electrical characteristics and identical packaging are available from multiple manufacturers.

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	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

Substitution of the TLE2064CDRG4 is determined by strict alignment of electrical and mechanical parameters. The following criteria establish valid substitute relationships:

Primary Substitution Criteria:

Amplifier Type: J-FET input configuration
Number of Circuits: 4 independent operational amplifiers
Package / Case: 14-SOIC form factor (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Operating Temperature Range: Minimum 0°C to 70°C coverage
Voltage Supply Span: Minimum 7V to 36V compatibility

Secondary Electrical Parameters for Compatibility Assessment:

Slew Rate: 3.4 V/µs or greater
Gain Bandwidth Product: 2 MHz or greater
Current - Input Bias: 4 pA to 50 pA range
Voltage - Input Offset: 900 µV to 5 mV range
Current - Supply: 600 µA to 7.2 mA per 4 channels
Current - Output / Channel: 14 mA to 80 mA

Substitute parts are grouped into two categories: Direct Equivalents (identical base product with different packaging) and Functional Alternatives (different base products meeting all primary criteria with enhanced or comparable secondary parameters).

Parameter Comparison

Part Number	Manufacturer	Product Status	Amplifier Type	Circuits	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (mV)	Supply Current (mA)	Output Current (mA)	Supply Span (V)	Temp Range (°C)	Package	Packaging Type
TLE2064CDRG4	Texas Instruments	Obsolete	J-FET	4	3.4	2	4	0.9	1.25	80	7–36	0–70	14-SOIC	Tube
TLE2064CDR	Texas Instruments	Active	J-FET	4	3.4	2	4	0.9	1.25	80	7–36	0–70	14-SOIC	Tape & Reel
LF347M/NOPB	Texas Instruments	Active	J-FET	4	13	4	50	5	7.2	—	10–36	0–70	14-SOIC	Tube
LF347MX/NOPB	Texas Instruments	Active	J-FET	4	13	4	50	5	7.2	—	10–36	0–70	14-SOIC	Cut Tape & Digi-Reel
LF444CM/NOPB	Texas Instruments	Active	J-FET	4	1	1	10	3	0.6	14	36–36	0–70	14-SOIC	Tube
LF444CMX/NOPB	Texas Instruments	Active	J-FET	4	1	1	10	3	0.6	14	36–36	0–70	14-SOIC	Cut Tape & Digi-Reel
LF247DT	STMicroelectronics	Active	J-FET	4	16	4	20	3	1.4	40	44–44	−40–105	14-SOIC	Cut Tape & Digi-Reel
LF347D	STMicroelectronics	Active	J-FET	4	16	3	20	3	1.4	40	44–44	0–70	14-SOIC	Tube
LF347DT	STMicroelectronics	Active	J-FET	4	16	4	20	3	1.4	40	44–44	0–70	14-SOIC	Cut Tape & Digi-Reel
TL074IYDT	STMicroelectronics	Active	J-FET	4	13	3	20	3	1.4	40	6–36	−40–105	14-SOIC	Cut Tape & Digi-Reel
SC2902DG	onsemi	Active	General Purpose	4	—	—	90	2	—	40	3–32	−40–105	14-SOIC	Tube

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Substitute):

The TLE2064CDR is the direct equivalent of the TLE2064CDRG4. Both parts share identical electrical specifications, J-FET amplifier architecture, and 14-SOIC packaging. The TLE2064CDR differs only in packaging format (Tape & Reel versus Tube) and holds Active product status with 3695 units in stock. This part provides seamless electrical and mechanical compatibility with zero design modification required.

Active Functional Alternatives:

The following parts meet all primary substitution criteria and maintain Active product status:

LF347 Series (Texas Instruments & STMicroelectronics):

LF347M/NOPB, LF347MX/NOPB (Texas Instruments)
LF347D, LF347DT (STMicroelectronics)

These parts provide enhanced performance with 13–16 V/µs slew rate and 3–4 MHz gain bandwidth product. Supply voltage minimum increases to 10 V (Texas Instruments) or 44 V fixed (STMicroelectronics). All maintain J-FET input configuration, 4-circuit topology, and 14-SOIC packaging. Operating temperature range extends to −40°C to 105°C for STMicroelectronics variants.

LF444 Series (Texas Instruments):

LF444CM/NOPB, LF444CMX/NOPB

These parts feature ultra-low supply current (600 µA total) and reduced output current (14 mA per channel), suitable for power-constrained applications. Fixed 36 V supply span and 1 V/µs slew rate represent trade-offs for lower power consumption. J-FET input and 4-circuit configuration maintained.

TL074IYDT (STMicroelectronics):

This part combines 13 V/µs slew rate with supply span of 6–36 V, matching the TLE2064CDRG4 minimum supply voltage. Extended operating temperature (−40°C to 105°C) and Active status support long-term availability.

SC2902DG (onsemi):

This General Purpose amplifier deviates from J-FET input architecture, utilizing standard bipolar input stage. Input bias current increases to 90 nA. Inclusion is based on 4-circuit topology, 14-SOIC packaging, and Active status. Use only when J-FET input characteristics are not functionally required.

Compliance & Certification:

All substitute parts listed maintain ROHS3 compliance, MSL Level 1 (Unlimited), and REACH Unaffected status, matching the TLE2064CDRG4 regulatory profile.

Frequently Asked Questions (FAQ)

Q: Can the TLE2064CDR directly replace the TLE2064CDRG4 without circuit modification?

A: Yes. The TLE2064CDR is electrically and mechanically identical to the TLE2064CDRG4. The only difference is packaging format (Tape & Reel versus Tube). No design changes are required. Both parts are J-FET input, 4-circuit operational amplifiers in 14-SOIC surface mount packages with identical electrical specifications.

Q: What is the primary reason to substitute the TLE2064CDRG4?

A: The TLE2064CDRG4 is classified as obsolete. While 3290 units remain in current stock, long-term availability cannot be guaranteed. The TLE2064CDR provides identical functionality with Active product status, ensuring sustained procurement and supply chain reliability.

Q: Are the LF347 and LF444 series suitable replacements for all applications using the TLE2064CDRG4?

A: The LF347 and LF444 series are functionally compatible in terms of package, pin configuration, and J-FET input architecture. However, electrical performance differs. The LF347 series offers higher slew rate (13–16 V/µs versus 3.4 V/µs) and greater bandwidth (3–4 MHz versus 2 MHz). The LF444 series trades performance for lower power consumption. Application-specific circuit analysis is required to confirm suitability based on gain, bandwidth, and slew rate requirements.

Q: What is the difference between the LF347M/NOPB and LF347MX/NOPB?

A: Both parts are electrically identical LF347 operational amplifiers from Texas Instruments. The difference is packaging format: LF347M/NOPB is supplied in Tube packaging, while LF347MX/NOPB is supplied in Cut Tape & Digi-Reel format. Electrical specifications, pin configuration, and 14-SOIC package dimensions are identical.

Q: Why does the SC2902DG have different input bias current (90 nA) compared to the TLE2064CDRG4 (4 pA)?

A: The SC2902DG uses a General Purpose amplifier architecture with standard bipolar input stage, whereas the TLE2064CDRG4 employs J-FET input technology. J-FET inputs inherently exhibit lower input bias current (picoampere range) compared to bipolar inputs (nanoampere range). The SC2902DG is listed as a functional alternative only when J-FET input characteristics are not critical to circuit operation.

Q: Can I use the LF444 series in high-frequency applications?

A: No. The LF444 series is optimized for low-power operation with 1 V/µs slew rate and 1 MHz gain bandwidth product. These specifications are significantly lower than the TLE2064CDRG4 (3.4 V/µs, 2 MHz). The LF444 series is suitable only for low-frequency, power-constrained applications. For high-frequency requirements, use the LF347 series or TL074IYDT.

Q: What is the operating temperature range difference between the TLE2064CDRG4 and STMicroelectronics alternatives?

A: The TLE2064CDRG4 operates from 0°C to 70°C. STMicroelectronics LF247DT, LF347D, LF347DT, and TL074IYDT extend the operating range to −40°C to 105°C (LF247DT and TL074IYDT) or 0°C to 70°C (LF347D). Extended temperature range provides greater environmental tolerance but may not be necessary for all applications.

Q: Are all substitute parts available in the same packaging options?

A: No. Packaging availability varies by manufacturer and part number. The TLE2064CDRG4 is supplied in Tube format. Substitutes are available in Tube, Tape & Reel, and Cut Tape & Digi-Reel formats. Verify packaging compatibility with your procurement and assembly processes before finalizing part selection.

Q: What is the minimum supply voltage for each substitute part?

A: TLE2064CDRG4 and TLE2064CDR: 7 V minimum. LF347M/NOPB and LF347MX/NOPB: 10 V minimum. LF444CM/NOPB and LF444CMX/NOPB: 36 V fixed. LF247DT, LF347D, LF347DT: 44 V fixed. TL074IYDT: 6 V minimum. SC2902DG: 3 V minimum. Confirm supply voltage compatibility with your circuit design before substitution.

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