TLE2141ID Equivalent & Substitute Parts

Part Overview

The TLE2141ID is a general-purpose operational amplifier manufactured by Texas Instruments in the Excalibur™ series. This single-circuit, 8-SOIC surface-mount device operates across a wide supply voltage range of 4V to 44V and is rated for temperatures from -40°C to 105°C. The TLE2141ID is currently in Last Time Buy status, indicating discontinued production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain component availability for new production runs and field replacements.

Key Parameters

Parameter	Value
Manufacturer Part Number	TLE2141ID
Manufacturer	Texas Instruments
Category	Linear, Amplifiers
Amplifier Type	General Purpose
Number of Circuits	1
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Slew Rate	45 V/µs
Gain Bandwidth Product	5.9 MHz
Current - Input Bias	700 nA
Voltage - Input Offset	200 µV
Current - Supply	3.5 mA
Current - Output / Channel	50 mA
Voltage - Supply Span (Min)	4 V
Voltage - Supply Span (Max)	44 V
Operating Temperature	-40°C to 105°C
RoHS Status	ROHS3 Compliant
Product Status	Last Time Buy

Substitute Part Grouping Explanation

Substitution of the TLE2141ID is determined by strict alignment of the following critical parameters:

Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface-mount package to ensure PCB footprint compatibility without redesign.

Electrical Performance Envelope: Substitute parts must operate within the supply voltage range of 4V to 44V minimum. Parts with lower maximum supply ratings (such as 36V) represent a constraint and are suitable only for applications not requiring the full 44V capability.

Amplifier Architecture: The TLE2141ID is a general-purpose bipolar amplifier. Substitute parts may include J-FET input amplifiers, which offer different input bias current characteristics but maintain functional compatibility in general-purpose applications.

Temperature Rating: The TLE2141ID operates from -40°C to 105°C. Substitute parts with identical or extended temperature ranges are acceptable; parts with narrower ranges (0°C to 70°C) are suitable only for commercial-temperature applications.

Compliance & Certifications: All substitute parts must maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating to ensure manufacturing and storage compatibility.

Slew Rate & Bandwidth: The TLE2141ID provides 45V/µs slew rate and 5.9 MHz gain-bandwidth product. Substitute parts with equal or superior performance are functionally compatible; parts with lower performance may be acceptable depending on application bandwidth requirements.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA/nA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package	Product Status
TLE2141ID	Texas Instruments	General Purpose	45	5.9	700 nA	4	44	-40 to 105	8-SOIC	Last Time Buy
TLE2141IDR	Texas Instruments	General Purpose	45	5.9	700 nA	4	44	-40 to 105	8-SOIC	Active
AD711KRZ	Analog Devices Inc.	J-FET	20	4	15 pA	9	36	0 to 70	8-SOIC	Active
AD711KRZ-REEL	Analog Devices Inc.	J-FET	20	4	15 pA	9	36	0 to 70	8-SOIC	Active
AD711KRZ-REEL7	Analog Devices Inc.	J-FET	20	4	15 pA	9	36	0 to 70	8-SOIC	Active
AD8510BRZ	Analog Devices Inc.	J-FET	20	8	25 pA	9	36	-40 to 125	8-SOIC	Active
AD8510BRZ-REEL7	Analog Devices Inc.	J-FET	20	8	25 pA	9	36	-40 to 125	8-SOIC	Active
ADA4622-1ARZ-RL	Analog Devices Inc.	J-FET	23	8	2 pA	5	30	-40 to 125	8-SOIC	Active
LT1055S8#PBF	Analog Devices Inc.	J-FET	12	4.5	30 pA	10	36	0 to 70	8-SOIC	Active
LT1055S8#TRPBF	Analog Devices Inc.	J-FET	12	4.5	30 pA	10	36	0 to 70	8-SOIC	Active
LT1056S8#PBF	Analog Devices Inc.	J-FET	14	5.5	30 pA	10	36	0 to 70	8-SOIC	Active

Engineering Selection Recommendations

Primary Substitute - Direct Replacement:

The TLE2141IDR is the recommended primary substitute. This part is manufactured by Texas Instruments and maintains identical electrical specifications to the TLE2141ID across all critical parameters: 45V/µs slew rate, 5.9 MHz gain-bandwidth product, 700 nA input bias current, and 4V to 44V supply range. The TLE2141IDR is in Active product status with current manufacturing availability. The only difference is packaging format (Cut Tape & Digi-Reel® versus Tube), which does not affect electrical performance or PCB compatibility.

Secondary Substitutes - Functional Alternatives:

The AD8510BRZ and AD8510BRZ-REEL7 (Analog Devices Inc.) are suitable substitutes for applications where extended temperature operation (-40°C to 125°C) is required. These J-FET input amplifiers provide superior gain-bandwidth product (8 MHz versus 5.9 MHz) and lower input bias current (25 pA versus 700 nA). However, the maximum supply voltage is limited to 36V, making these parts unsuitable for applications requiring the full 44V capability of the TLE2141ID.

Tertiary Substitutes - Limited Scope:

The AD711KRZ, AD711KRZ-REEL, and AD711KRZ-REEL7 (Analog Devices Inc.) are J-FET input amplifiers with commercial temperature rating (0°C to 70°C) and 36V maximum supply voltage. These parts are suitable only for non-industrial applications operating within the commercial temperature range and not requiring supply voltages above 36V.

The LT1055S8#PBF and LT1055S8#TRPBF (Analog Devices Inc.) provide the lowest slew rate (12V/µs) and gain-bandwidth product (4.5 MHz) among available substitutes. These parts are suitable only for low-frequency applications where reduced bandwidth is acceptable.

The LT1056S8#PBF (Analog Devices Inc.) offers intermediate performance with 14V/µs slew rate and 5.5 MHz gain-bandwidth product, suitable for applications with moderate bandwidth requirements and commercial temperature operation.

The ADA4622-1ARZ-RL (Analog Devices Inc.) provides rail-to-rail output capability and the lowest input bias current (2 pA) among J-FET substitutes. However, the maximum supply voltage is limited to 30V, and the minimum supply voltage is 5V, restricting use to applications within this narrower range.

All substitute parts maintain ROHS3 compliance and MSL Level 1 moisture sensitivity rating, ensuring manufacturing and storage compatibility with the original TLE2141ID.

Frequently Asked Questions (FAQ)

Q: Can the TLE2141IDR be used as a direct replacement for the TLE2141ID without circuit modification?

A: Yes. The TLE2141IDR is electrically and functionally identical to the TLE2141ID. Both parts share the same 8-SOIC package footprint, supply voltage range (4V to 44V), operating temperature range (-40°C to 105°C), and all key electrical parameters. The only difference is packaging format (Cut Tape & Digi-Reel® versus Tube), which does not affect circuit performance or PCB assembly compatibility.

Q: What is the primary limitation of AD711KRZ and AD8510BRZ substitutes?

A: Both the AD711KRZ and AD8510BRZ series have a maximum supply voltage rating of 36V, compared to the TLE2141ID's 44V maximum. These parts are unsuitable for applications requiring the full 44V supply capability. Additionally, the AD711KRZ is limited to commercial temperature operation (0°C to 70°C), while the AD8510BRZ supports industrial temperature range (-40°C to 125°C).

Q: Are J-FET input amplifiers (AD711, AD8510, ADA4622, LT1055, LT1056) functionally equivalent to the TLE2141ID?

A: J-FET input amplifiers are functionally compatible in general-purpose applications but differ in input bias current characteristics. The TLE2141ID has 700 nA input bias current (bipolar input stage), while J-FET substitutes have input bias currents ranging from 2 pA to 30 pA. This difference is negligible in most applications but may affect performance in high-impedance circuits. All J-FET substitutes maintain the 8-SOIC package and surface-mount compatibility.

Q: Which substitute part offers the best performance improvement over the TLE2141ID?

A: The AD8510BRZ and AD8510BRZ-REEL7 provide superior gain-bandwidth product (8 MHz versus 5.9 MHz) and extended temperature rating (-40°C to 125°C). However, these parts are limited to 36V maximum supply voltage. The ADA4622-1ARZ-RL offers the lowest input bias current (2 pA) and rail-to-rail output capability but is limited to 30V maximum supply voltage.

Q: Can LT1055S8 and LT1056S8 parts be used in high-frequency applications?

A: No. The LT1055S8 series has a gain-bandwidth product of 4.5 MHz and slew rate of 12V/µs, both lower than the TLE2141ID. The LT1056S8 provides 5.5 MHz gain-bandwidth product and 14V/µs slew rate, which is marginally lower than the TLE2141ID's 5.9 MHz and 45V/µs. These parts are suitable only for low-to-moderate frequency applications where reduced bandwidth is acceptable.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with modern manufacturing processes and storage requirements.

Q: What is the difference between tube, tape & reel, and cut tape packaging formats?

A: Tube packaging contains individual components in a plastic tube for manual handling. Tape & Reel (TR) packaging places components on a continuous tape wound on a reel for automated assembly. Cut Tape (CT) & Digi-Reel® packaging provides the same tape format but in smaller quantities. All three formats are electrically identical; the choice depends on production volume and assembly equipment compatibility. The TLE2141ID is supplied in Tube format, while TLE2141IDR is available in Cut Tape & Digi-Reel® format.

Q: Is the ADA4622-1ARZ-RL suitable for 44V supply applications?

A: No. The ADA4622-1ARZ-RL has a maximum supply voltage rating of 30V, making it unsuitable for applications requiring the full 44V capability of the TLE2141ID. This part is limited to applications operating within the 5V to 30V supply range.

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