TLE2141AID Equivalent & Substitute Parts

Part Overview

The TLE2141AID is a general-purpose operational amplifier manufactured by Texas Instruments in the Excalibur™ series. This device is a single-circuit, 8-SOIC surface-mount integrated circuit designed for linear amplification applications. The TLE2141AID is currently designated as Last Time Buy, indicating discontinued production status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications utilizing this amplifier topology.

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 Range	-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 TLE2141AID is determined by strict alignment of electrical and mechanical parameters within the 8-SOIC package form factor. The critical parameters governing substitution eligibility are:

Electrical Compatibility Criteria:

Amplifier topology (General Purpose vs. J-FET architecture)
Slew rate performance (45 V/µs baseline)
Gain bandwidth product (5.9 MHz baseline)
Input bias current characteristics
Supply voltage range compatibility (minimum 4 V, maximum 44 V)
Operating temperature range coverage (-40°C to 105°C)
Output current capability (50 mA per channel)

Mechanical Compatibility Criteria:

Package type: 8-SOIC form factor
Surface-mount configuration
Pin count and pinout alignment

Substitute parts are grouped into two categories:

Category 1: Direct Functional Equivalents (Same Amplifier Type)

TLE2141AIDR (Texas Instruments, Tape & Reel packaging variant)

Category 2: Functional Alternatives (Different Amplifier Type)

AD711KRZ, AD711KRZ-REEL, AD711KRZ-REEL7 (Analog Devices, J-FET topology)
AD8510BRZ, AD8510BRZ-REEL7 (Analog Devices, J-FET topology)
LT1055S8#PBF, LT1055S8#TRPBF (Analog Devices, J-FET topology)
LT1056S8#PBF, LT1056S8#TRPBF (Analog Devices, J-FET topology)

Parts in Category 2 employ J-FET input architecture, which differs from the general-purpose topology of the TLE2141AID. These alternatives are listed based on the substitute relationships provided in the input data and share the 8-SOIC package form factor.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA/nA)	Input Offset (µV)	Supply Current (mA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package	Status
TLE2141AID	Texas Instruments	General Purpose	45	5.9	700 nA	175	3.5	50	4	44	-40 to 105	8-SOIC	Last Time Buy
TLE2141AIDR	Texas Instruments	General Purpose	45	5.9	700 nA	175	3.5	50	4	44	-40 to 105	8-SOIC	Active
AD711KRZ	Analog Devices	J-FET	20	4	15 pA	200	2.5	25	9	36	0 to 70	8-SOIC	Active
AD711KRZ-REEL	Analog Devices	J-FET	20	4	15 pA	200	2.5	25	9	36	0 to 70	8-SOIC	Active
AD711KRZ-REEL7	Analog Devices	J-FET	20	4	15 pA	200	2.5	25	9	36	0 to 70	8-SOIC	Active
AD8510BRZ	Analog Devices	J-FET	20	8	25 pA	80	2.2	70	9	36	-40 to 125	8-SOIC	Active
AD8510BRZ-REEL7	Analog Devices	J-FET	20	8	25 pA	80	2.2	70	9	36	-40 to 125	8-SOIC	Active
LT1055S8#PBF	Analog Devices	J-FET	12	4.5	30 pA	500	2.8	—	10	36	0 to 70	8-SOIC	Active
LT1055S8#TRPBF	Analog Devices	J-FET	12	4.5	30 pA	500	2.8	—	10	36	0 to 70	8-SOIC	Active
LT1056S8#PBF	Analog Devices	J-FET	14	5.5	30 pA	500	5	—	10	36	0 to 70	8-SOIC	Active
LT1056S8#TRPBF	Analog Devices	J-FET	14	5.5	30 pA	500	5	—	10	36	0 to 70	8-SOIC	Active

Engineering Selection Recommendations

Primary Recommendation: TLE2141AIDR

The TLE2141AIDR is the direct functional equivalent of the TLE2141AID, manufactured by Texas Instruments. This part maintains identical electrical specifications across all critical parameters: 45 V/µs slew rate, 5.9 MHz gain bandwidth product, 700 nA input bias current, 175 µV input offset voltage, and full -40°C to 105°C operating temperature range. The only difference is packaging format (Tape & Reel versus Tube). The TLE2141AIDR carries Active product status, ensuring continued availability and supply chain support. Both parts are ROHS3 compliant with MSL 1 rating and identical pin configurations in the 8-SOIC package.

Secondary Recommendations: Analog Devices J-FET Alternatives

For applications where J-FET input characteristics are acceptable, the following Analog Devices parts provide active alternatives:

AD8510BRZ / AD8510BRZ-REEL7: Offers superior input offset voltage (80 µV vs. 175 µV), higher output current capability (70 mA vs. 50 mA), and extended operating temperature range (-40°C to 125°C). Gain bandwidth product is 8 MHz. Supply voltage range is 9 V to 36 V, which does not cover the 4 V minimum of the TLE2141AID.
LT1056S8#PBF / LT1056S8#TRPBF: Provides gain bandwidth product of 5.5 MHz, closest to the TLE2141AID's 5.9 MHz specification. Slew rate is 14 V/µs (lower than 45 V/µs). Supply range is 10 V to 36 V. Operating temperature range is 0°C to 70°C.
AD711KRZ / AD711KRZ-REEL / AD711KRZ-REEL7: Offers lowest input bias current (15 pA) among J-FET alternatives. Gain bandwidth product is 4 MHz. Operating temperature range is 0°C to 70°C. Supply range is 9 V to 36 V.
LT1055S8#PBF / LT1055S8#TRPBF: Provides 4.5 MHz gain bandwidth product with 12 V/µs slew rate. Supply range is 10 V to 36 V. Operating temperature range is 0°C to 70°C.

All J-FET alternatives are ROHS3 compliant with MSL 1 rating and maintain 8-SOIC package compatibility. Selection among these alternatives depends on specific application requirements for input bias current, slew rate, bandwidth, and supply voltage constraints.

Frequently Asked Questions (FAQ)

Q1: Can TLE2141AIDR be used as a direct replacement for TLE2141AID?

A: Yes. The TLE2141AIDR is electrically and functionally identical to the TLE2141AID. Both parts share the same general-purpose amplifier topology, identical electrical specifications, and 8-SOIC pinout. The difference is packaging format: TLE2141AID is supplied in Tube packaging, while TLE2141AIDR is supplied in Tape & Reel format. Both are ROHS3 compliant with MSL 1 moisture sensitivity rating.

Q2: What is the key difference between the TLE2141AID and the Analog Devices J-FET alternatives?

A: The TLE2141AID employs general-purpose amplifier architecture, while AD711, AD8510, LT1055, and LT1056 series use J-FET input stages. J-FET inputs provide significantly lower input bias current (15–30 pA vs. 700 nA) but typically exhibit lower slew rates and narrower supply voltage ranges. The TLE2141AID supports supply voltages from 4 V to 44 V, while most J-FET alternatives require minimum 9–10 V supply.

Q3: Are the J-FET alternatives suitable for applications requiring -40°C to 105°C operation?

A: Most J-FET alternatives have limited temperature ranges. AD711KRZ variants and LT1055/LT1056 series operate only from 0°C to 70°C. The AD8510BRZ and AD8510BRZ-REEL7 extend to -40°C to 125°C, covering the full temperature range of the TLE2141AID. Verify application temperature requirements before selecting J-FET alternatives.

Q4: Can I substitute TLE2141AID in a design requiring 4 V minimum supply voltage?

A: The TLE2141AID and TLE2141AIDR both support 4 V minimum supply voltage. Most Analog Devices J-FET alternatives (AD711, LT1055, LT1056) require minimum 9–10 V supply. The AD8510BRZ requires 9 V minimum. If 4 V operation is required, use TLE2141AIDR as the substitute. J-FET alternatives are not suitable for 4 V supply applications.

Q5: What are the packaging format options for TLE2141 equivalents?

A: The TLE2141AID is supplied in Tube packaging. The TLE2141AIDR is the Tape & Reel variant of the same part. Both use 8-SOIC form factor with identical pinout and electrical specifications. Analog Devices alternatives are available in multiple packaging formats: Tube (standard), Tape & Reel (TR), and Cut Tape with Digi-Reel® (CT). Verify packaging requirements for automated assembly processes.

Q6: Which substitute part offers the best slew rate performance?

A: The TLE2141AID and TLE2141AIDR both provide 45 V/µs slew rate, the highest among all listed parts. Analog Devices J-FET alternatives offer lower slew rates: AD8510BRZ and AD711KRZ provide 20 V/µs, LT1056S8 provides 14 V/µs, and LT1055S8 provides 12 V/µs. For applications requiring high slew rate, TLE2141AIDR is the recommended choice.

Q7: Are all substitute parts RoHS3 compliant?

A: Yes. All parts listed—TLE2141AID, TLE2141AIDR, and all Analog Devices alternatives (AD711, AD8510, LT1055, LT1056 series)—are ROHS3 compliant. All carry MSL 1 (Unlimited) moisture sensitivity level rating. All are REACH Unaffected and classified as EAR99 for export control purposes.

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