TLE2141ACD Equivalent & Substitute Parts

Part Overview

The TLE2141ACD 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 TLE2141ACD is currently in Last Time Buy status, indicating that the original manufacturer has discontinued or will discontinue production. 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.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	TLE2141ACD	—
Manufacturer	Texas Instruments	—
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
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	0 to 70	°C
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the TLE2141ACD is determined by strict alignment of electrical and mechanical parameters. The following criteria establish valid substitute relationships:

Primary Substitution Criteria:

Package / Case: 8-SOIC (0.154", 3.90mm Width) — mechanical compatibility required
Mounting Type: Surface Mount — assembly process compatibility
Number of Circuits: 1 — functional equivalence
Voltage - Supply Span: Minimum 4V, Maximum 44V — power supply compatibility
Operating Temperature Range: 0°C to 70°C or broader — thermal compatibility
RoHS Status: ROHS3 Compliant — regulatory compliance
Moisture Sensitivity Level: 1 (Unlimited) — handling and storage compatibility

Secondary Performance Parameters:

Slew Rate: 45 V/µs or higher — signal fidelity
Gain Bandwidth Product: 5.9 MHz or higher — frequency response
Current - Input Bias: 700 nA or lower — input impedance characteristics
Voltage - Input Offset: 175 µV or lower — DC accuracy
Current - Supply: 3.5 mA or lower — power consumption
Current - Output / Channel: 50 mA or higher — output drive capability

Substitute parts must satisfy all primary criteria and maintain compatibility with secondary performance parameters within the application's tolerance margins.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (nA)	Input Offset (µV)	Supply Current (mA)	Output Current (mA)	Supply Span Min (V)	Supply Span Max (V)	Temp Range (°C)	Package	Status
TLE2141ACD	Texas Instruments	General Purpose	45	5.9	700	175	3.5	50	4	44	0 to 70	8-SOIC	Last Time Buy
TLE2141AIDR	Texas Instruments	General Purpose	45	5.9	700	175	3.5	50	4	44	-40 to 105	8-SOIC	Active
AD711KRZ	Analog Devices Inc.	J-FET	20	4.0	0.015	200	2.5	25	9	36	0 to 70	8-SOIC	Active
AD711KRZ-REEL	Analog Devices Inc.	J-FET	20	4.0	0.015	200	2.5	25	9	36	0 to 70	8-SOIC	Active
AD711KRZ-REEL7	Analog Devices Inc.	J-FET	20	4.0	0.015	200	2.5	25	9	36	0 to 70	8-SOIC	Active
AD8510BRZ	Analog Devices Inc.	J-FET	20	8.0	0.025	80	2.2	70	9	36	-40 to 125	8-SOIC	Active
AD8510BRZ-REEL7	Analog Devices Inc.	J-FET	20	8.0	0.025	80	2.2	70	9	36	-40 to 125	8-SOIC	Active
LT1055S8#PBF	Analog Devices Inc.	J-FET	12	4.5	0.030	500	2.8	—	10	36	0 to 70	8-SOIC	Active
LT1055S8#TRPBF	Analog Devices Inc.	J-FET	12	4.5	0.030	500	2.8	—	10	36	0 to 70	8-SOIC	Active
LT1056S8#PBF	Analog Devices Inc.	J-FET	14	5.5	0.030	500	5.0	—	10	36	0 to 70	8-SOIC	Active
LT1056S8#TRPBF	Analog Devices Inc.	J-FET	14	5.5	0.030	500	5.0	—	10	36	0 to 70	8-SOIC	Active

Engineering Selection Recommendations

Primary Recommendation: TLE2141AIDR

The TLE2141AIDR is the manufacturer-recommended direct substitute for the TLE2141ACD. Both devices are manufactured by Texas Instruments and share identical electrical specifications: 45 V/µs slew rate, 5.9 MHz gain bandwidth product, 700 nA input bias current, 175 µV input offset voltage, 3.5 mA supply current, and 50 mA output current. The TLE2141AIDR is in Active product status, ensuring long-term availability and supply chain stability. The primary difference is packaging format (Tape & Reel versus Tube) and an extended operating temperature range (-40°C to 105°C versus 0°C to 70°C). Both devices are ROHS3 Compliant with MSL 1 (Unlimited) rating. Selection of TLE2141AIDR provides direct functional equivalence with improved temperature performance and guaranteed production continuity.

Secondary Recommendations: AD711KRZ Series and AD8510BRZ Series

The AD711KRZ, AD711KRZ-REEL, and AD711KRZ-REEL7 devices from Analog Devices Inc. are functionally compatible substitutes with J-FET input architecture. These parts maintain 8-SOIC packaging and Active product status. Key differences include lower slew rate (20 V/µs versus 45 V/µs), lower gain bandwidth product (4.0 MHz versus 5.9 MHz), significantly lower input bias current (15 pA versus 700 nA), and reduced output current capability (25 mA versus 50 mA). Supply voltage range is narrower (9V to 36V versus 4V to 44V). Selection of AD711KRZ variants is appropriate for applications prioritizing ultra-low input bias current and low input offset voltage over high slew rate performance.

The AD8510BRZ and AD8510BRZ-REEL7 devices offer enhanced performance with 8.0 MHz gain bandwidth product, superior input offset voltage (80 µV), and extended operating temperature range (-40°C to 125°C). These J-FET input amplifiers provide higher output current capability (70 mA) and are suitable for applications requiring improved frequency response and wider temperature operation. Supply voltage range remains 9V to 36V.

Tertiary Recommendations: LT1055S8 and LT1056S8 Series

The LT1055S8#PBF, LT1055S8#TRPBF, LT1056S8#PBF, and LT1056S8#TRPBF devices from Analog Devices Inc. are J-FET input amplifiers with Active product status. These parts maintain 8-SOIC packaging and are suitable for applications where lower slew rate (12 to 14 V/µs) and lower supply current (2.8 to 5.0 mA) are acceptable trade-offs. Input bias current is 30 pA, and input offset voltage is 500 µV. Supply voltage range is 10V to 36V. These devices are appropriate for low-power applications with relaxed frequency response requirements.

Compliance and Certification:

All recommended substitute parts are ROHS3 Compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage procedures. All parts are classified under ECCN EAR99 and HTSUS 8542.33.0001.

Frequently Asked Questions (FAQ)

Q1: Can TLE2141AIDR directly replace TLE2141ACD in existing designs?

A: Yes. The TLE2141AIDR is the manufacturer-recommended direct substitute with identical electrical specifications. The only differences are packaging format (Tape & Reel versus Tube) and extended operating temperature range. No circuit modifications are required. Verify that your assembly process accommodates the selected packaging format.

Q2: What is the primary difference between TLE2141ACD and TLE2141AIDR?

A: Both devices share identical electrical performance. TLE2141AIDR is in Active production status with extended temperature range (-40°C to 105°C), while TLE2141ACD is in Last Time Buy status with standard temperature range (0°C to 70°C). TLE2141AIDR is supplied in Tape & Reel packaging; TLE2141ACD is supplied in Tube packaging.

Q3: Are AD711KRZ variants suitable replacements for TLE2141ACD?

A: AD711KRZ variants are functionally compatible but with performance trade-offs. These J-FET input amplifiers have lower slew rate (20 V/µs versus 45 V/µs), lower gain bandwidth product (4.0 MHz versus 5.9 MHz), and reduced output current (25 mA versus 50 mA). However, they offer ultra-low input bias current (15 pA versus 700 nA). Selection depends on application requirements. Verify that lower slew rate and reduced output current are acceptable for your circuit.

Q4: What are the key differences between AD8510BRZ and AD711KRZ?

A: Both are J-FET input amplifiers in 8-SOIC packaging. AD8510BRZ offers higher gain bandwidth product (8.0 MHz versus 4.0 MHz), superior input offset voltage (80 µV versus 200 µV), higher output current (70 mA versus 25 mA), and extended operating temperature range (-40°C to 125°C versus 0°C to 70°C). AD8510BRZ is suitable for applications requiring enhanced frequency response and wider temperature operation.

Q5: Why do LT1055S8 and LT1056S8 have lower slew rates than TLE2141ACD?

A: LT1055S8 and LT1056S8 are optimized for low-power operation with slew rates of 12 V/µs and 14 V/µs respectively, compared to TLE2141ACD's 45 V/µs. This design trade-off reduces power consumption (2.8 to 5.0 mA versus 3.5 mA) and input bias current (30 pA versus 700 nA). These devices are appropriate for applications where signal bandwidth is limited and power efficiency is prioritized.

Q6: Are all substitute parts ROHS3 Compliant?

A: Yes. All recommended substitute parts listed in this document are ROHS3 Compliant with MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing processes and environmental regulations.

Q7: What packaging options are available for substitute parts?

A: Substitute parts are available in multiple packaging formats: Tube (standard packaging), Tape & Reel (TR) for automated assembly, and Cut Tape & Digi-Reel® (CT) for mixed-volume applications. Verify that your assembly process and procurement workflow accommodate the selected packaging format. All parts maintain identical electrical specifications regardless of packaging format.

Q8: Can I use AD8510BRZ in applications requiring operation below 9V?

A: No. AD8510BRZ has a minimum supply voltage of 9V, while TLE2141ACD operates down to 4V. If your application requires operation below 9V, TLE2141AIDR is the appropriate substitute. Verify supply voltage requirements before part selection.

Q9: Which substitute part offers the best input offset voltage performance?

A: AD8510BRZ offers the lowest input offset voltage at 80 µV, compared to TLE2141ACD's 175 µV. This superior DC accuracy makes AD8510BRZ suitable for precision measurement and instrumentation applications. However, AD8510BRZ has a higher minimum supply voltage (9V versus 4V) and different slew rate characteristics.

Q10: Are there inventory considerations when selecting substitute parts?

A: Yes. Current inventory levels vary by part number and packaging format. TLE2141AIDR (1472 pcs), AD711KRZ-REEL7 (7628 pcs), and LT1056S8#TRPBF (3182 pcs) show higher inventory availability. Verify current stock levels with your supplier to ensure timely procurement and support long-term production requirements.

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