TLE2141AIDRG4 Equivalent & Substitute Parts

Part Overview

The TLE2141AIDRG4 is a general-purpose operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device is classified as obsolete, which necessitates identification of active equivalent and substitute components for ongoing design support and procurement. The TLE2141AIDRG4 operates across a wide supply voltage range of 4V to 44V and is suitable for applications requiring moderate bandwidth and slew rate performance in the general-purpose amplifier category.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Slew Rate	45	V/µs
Gain Bandwidth Product	5.9	MHz
Current - Input Bias	700	nA
Voltage - Input Offset	175	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 to 105	°C
Package / Case	8-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 TLE2141AIDRG4 is determined by compatibility across the following critical parameters: package type (8-SOIC surface mount), number of circuits (single channel), supply voltage range capability, and operating temperature range. The substitute parts identified fall into two functional categories based on amplifier architecture:

Category 1: J-FET Input Amplifiers (AD711KRZ, AD711KRZ-REEL, AD711KRZ-REEL7, AD8510BRZ, AD8510BRZ-REEL7, LT1055S8#PBF, LT1055S8#TRPBF, LT1056S8#PBF, LT1056S8#TRPBF) — These devices feature J-FET input stages, offering significantly lower input bias current (15–30 pA) compared to the TLE2141AIDRG4 (700 nA). All maintain 8-SOIC packaging and single-circuit configuration. Supply voltage ranges vary: AD711 series operates 9V–36V, AD8510 series operates 9V–36V, and LT1055/LT1056 series operate 10V–36V. Operating temperature ranges differ: AD711 operates 0°C–70°C, AD8510 operates -40°C–125°C, and LT1055/LT1056 operate 0°C–70°C.

Substitution within this category is valid when the application's supply voltage and temperature requirements fall within the substitute part's specified ranges. The TLE2141AIDRG4's extended low-voltage capability (4V minimum) is not matched by any J-FET substitute, which all require minimum 9V–10V supplies.

Parameter Comparison

Parameter	TLE2141AIDRG4	AD711KRZ / AD711KRZ-REEL / AD711KRZ-REEL7	AD8510BRZ / AD8510BRZ-REEL7	LT1055S8#PBF / LT1055S8#TRPBF	LT1056S8#PBF / LT1056S8#TRPBF
Amplifier Type	General Purpose	J-FET	J-FET	J-FET	J-FET
Number of Circuits	1	1	1	1	1
Slew Rate (V/µs)	45	20	20	12	14
Gain Bandwidth Product (MHz)	5.9	4	8	4.5	5.5
Current - Input Bias (pA/nA)	700 nA	15 pA	25 pA	30 pA	30 pA
Voltage - Input Offset (µV)	175	200	80	500	500
Current - Supply (mA)	3.5	2.5	2.2	2.8	5
Current - Output / Channel (mA)	50	25	70	—	—
Voltage - Supply Span Min (V)	4	9	9	10	10
Voltage - Supply Span Max (V)	44	36	36	36	36
Operating Temperature (°C)	-40 to 105	0 to 70	-40 to 125	0 to 70	0 to 70
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active

Engineering Selection Recommendations

For applications operating within 9V–36V supply range and 0°C–70°C temperature:

The AD711KRZ, AD711KRZ-REEL, and AD711KRZ-REEL7 (all identical electrical specifications, differing only in packaging format) provide direct functional substitution. These devices maintain single-channel J-FET architecture with 8-SOIC packaging. All three variants are ROHS3 compliant and carry active product status. Selection between tube (AD711KRZ), tape & reel (AD711KRZ-REEL), and cut tape & Digi-Reel (AD711KRZ-REEL7) depends on procurement and assembly requirements.

For applications requiring extended temperature operation (-40°C–125°C) within 9V–36V supply:

The AD8510BRZ and AD8510BRZ-REEL7 are suitable. These devices offer superior input offset voltage (80 µV versus 200 µV for AD711 series) and higher output current capability (70 mA versus 25 mA). Both are ROHS3 compliant and active products.

For applications with lower slew rate tolerance (≤14 V/µs) and standard temperature range (0°C–70°C):

The LT1055S8#PBF, LT1055S8#TRPBF, LT1056S8#PBF, and LT1056S8#TRPBF are applicable. LT1056 variants provide marginally higher slew rate (14 V/µs) and gain bandwidth product (5.5 MHz) compared to LT1055 variants (12 V/µs, 4.5 MHz). All are ROHS3 compliant and active products.

Critical Limitation:

No substitute part accommodates the TLE2141AIDRG4's minimum supply voltage of 4V. All identified substitutes require minimum 9V–10V supplies. Applications dependent on 4V–8V operation cannot use these substitutes.

Frequently Asked Questions (FAQ)

Q: Can the AD711KRZ directly replace the TLE2141AIDRG4 in all applications?

A: Direct replacement is valid only when the application operates within the AD711KRZ's specified ranges: 9V–36V supply voltage and 0°C–70°C operating temperature. If the original design uses supply voltages below 9V or operates below 0°C or above 70°C, the AD711KRZ is not suitable. The TLE2141AIDRG4 supports 4V minimum supply; no substitute matches this specification.

Q: What is the difference between AD711KRZ, AD711KRZ-REEL, and AD711KRZ-REEL7?

A: These three part numbers are electrically identical. The differences are packaging formats: AD711KRZ is supplied in tube packaging, AD711KRZ-REEL in tape & reel format, and AD711KRZ-REEL7 in cut tape & Digi-Reel format. Selection depends on assembly line requirements and procurement preferences.

Q: Why does the AD8510BRZ have higher output current (70 mA) than the TLE2141AIDRG4 (50 mA)?

A: The AD8510BRZ is a higher-performance J-FET amplifier with enhanced output drive capability. This parameter difference does not prevent substitution; it indicates the AD8510BRZ can deliver greater load current if required by the application.

Q: Can I use LT1055S8#PBF in place of LT1056S8#PBF?

A: Both are J-FET amplifiers in 8-SOIC packaging with identical supply voltage and temperature ranges. The LT1056 offers higher slew rate (14 V/µs versus 12 V/µs) and gain bandwidth product (5.5 MHz versus 4.5 MHz). Substitution is valid if the application does not require the LT1056's enhanced performance specifications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts carry ROHS3 Compliant status, matching the TLE2141AIDRG4's compliance certification.

Q: What does "Moisture Sensitivity Level 1 (Unlimited)" mean?

A: MSL 1 indicates the component has unlimited shelf life under standard storage conditions and requires no special moisture control measures during handling or storage. All listed parts carry this classification.

Q: If my application requires -40°C operation, which substitute should I use?

A: Only the AD8510BRZ and AD8510BRZ-REEL7 support -40°C minimum operating temperature. The AD711 and LT1055/LT1056 series are rated 0°C minimum and are not suitable for -40°C operation.

Q: Can I substitute the TLE2141AIDRG4 in a 3.3V supply application?

A: No. The TLE2141AIDRG4 requires minimum 4V supply. All identified substitutes require 9V–10V minimum. For 3.3V applications, alternative amplifier families must be evaluated.

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