TLE2141IP Equivalent & Substitute Parts Reference

Part Overview

The TLE2141IP is a general-purpose operational amplifier manufactured by Texas Instruments in the Excalibur™ series. This single-circuit, 8-PDIP through-hole device operates across a wide supply voltage range (4V to 44V) and temperature range (-40°C to 105°C). The part is designated as Last Time Buy, indicating discontinued production status. Identifying equivalent and substitute components is essential for design continuity, inventory management, and long-term product support in applications requiring general-purpose amplification.

Substiute Parts

TLE2141IP

Texas InstrumentsIn Stock: 5576TLE2141IP Datasheet

Current PartRFQ

TLE2141IDR

Texas InstrumentsIn Stock: 8953TLE2141IDR Datasheet

MFR RecommendedRFQ

AD711KNZ

Analog Devices Inc.In Stock: 1348AD711KNZ Datasheet

MFR RecommendedRFQ

LT1055CN8#PBF

Analog Devices Inc.In Stock: 1534LT1055CN8#PBF Datasheet

MFR RecommendedRFQ

LT1056CN8#PBF

Analog Devices Inc.In Stock: 1340LT1056CN8#PBF Datasheet

MFR RecommendedRFQ

LT1792ACN8#PBF

Analog Devices Inc.In Stock: 2321LT1792ACN8#PBF Datasheet

MFR RecommendedRFQ

LT1792AIN8#PBF

Analog Devices Inc.In Stock: 1019LT1792AIN8#PBF Datasheet

MFR RecommendedRFQ

LT1792CN8#PBF

Analog Devices Inc.In Stock: 1976LT1792CN8#PBF Datasheet

MFR RecommendedRFQ

LT1792IN8#PBF

Analog Devices Inc.In Stock: 804LT1792IN8#PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLE2141IP is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Package type: 8-DIP through-hole configuration (0.300", 7.62mm)
• Single-circuit operational amplifier topology
• Supply voltage range compatibility: minimum 4V, maximum 44V
• Operating temperature range: -40°C to 105°C preferred for industrial applications
• Slew rate: 45V/µs or higher for signal fidelity
• Gain bandwidth product: 5.9 MHz or higher for frequency response
• Input bias current: 700 nA or lower for precision applications
• Input offset voltage: 200 µV or lower for accuracy

Substitution Categories:

Category 1: Direct Functional Equivalent (Same Manufacturer) TLE2141IDR is the surface-mount variant of the same base product (TLE2141) from Texas Instruments. It maintains identical electrical specifications but differs in package type (8-SOIC) and mounting method (surface mount). This part is Active status and suitable for new designs requiring SMD assembly.

Category 2: J-FET Input Amplifiers (Alternative Topology) Parts AD711KNZ, LT1055CN8#PBF, LT1056CN8#PBF, LT1792ACN8#PBF, LT1792AIN8#PBF, LT1792CN8#PBF, and LT1792IN8#PBF are J-FET input operational amplifiers in 8-DIP through-hole packages. These devices offer lower input bias current (15 pA to 300 pA versus 700 nA) but operate within restricted supply voltage ranges (9V to 40V maximum) and narrower temperature ranges (0°C to 70°C standard, -40°C to 85°C for industrial grades). Substitution requires verification of supply voltage and temperature requirements.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Performance):

TLE2141IDR is the recommended substitute when design continuity and identical electrical specifications are required. This part maintains all performance parameters of the TLE2141IP while offering Active product status and improved availability (8,868 units in stock versus 5,500 for the original). The only design consideration is the transition from through-hole (8-DIP) to surface-mount (8-SOIC) assembly, which requires PCB layout modification. Both parts are ROHS3 compliant and carry identical supply voltage and temperature ratings.

For J-FET Input Substitution (Low Input Bias Current Applications):

When applications require ultra-low input bias current (below 100 pA), J-FET input amplifiers from the Analog Devices LT1792 series are suitable alternatives. LT1792AIN8#PBF and LT1792IN8#PBF extend the operating temperature range to -40°C to 85°C, matching the industrial temperature specification of the TLE2141IP. However, these parts operate within a reduced supply voltage range (9V to 40V maximum) compared to the TLE2141IP (4V to 44V). Substitution is valid only when supply voltage requirements fall within 9V to 40V.

For General-Purpose Applications with Standard Temperature Range:

AD711KNZ, LT1055CN8#PBF, and LT1056CN8#PBF are suitable for applications operating within 0°C to 70°C. These parts offer lower input bias current and are Active status. Supply voltage range restrictions (9V to 36V or 10V to 36V) must be verified against circuit requirements.

Compliance and Regulatory Considerations:

All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the regulatory status of the TLE2141IP. All parts carry ECCN EAR99 classification and HTSUS code 8542.33.0001, ensuring consistent export and tariff treatment.

Frequently Asked Questions (FAQ)

Q1: Can TLE2141IDR be used as a direct replacement for TLE2141IP in existing designs?

A: TLE2141IDR is electrically identical to TLE2141IP and maintains all performance specifications. The primary difference is package type: TLE2141IDR uses 8-SOIC surface-mount packaging versus 8-DIP through-hole for TLE2141IP. Direct PCB substitution is not possible without layout redesign. TLE2141IDR is suitable for new production runs or redesigned boards targeting surface-mount assembly.

Q2: What is the key limitation when substituting J-FET input amplifiers (LT1792 series) for the TLE2141IP?

A: J-FET input amplifiers operate within a reduced supply voltage range. The TLE2141IP supports 4V to 44V, while LT1792 variants support 9V to 40V. Substitution is valid only when circuit supply voltages remain within 9V to 40V. Additionally, standard temperature-grade LT1792 parts (LT1792CN8#PBF, LT1792ACN8#PBF) are limited to 0°C to 70°C, below the TLE2141IP industrial range of -40°C to 105°C. Industrial-grade variants (LT1792AIN8#PBF, LT1792IN8#PBF) extend to -40°C to 85°C.

Q3: Why does AD711KNZ show lower slew rate (20V/µs) compared to TLE2141IP (45V/µs)?

A: AD711KNZ is a J-FET input amplifier optimized for low input bias current (15 pA) rather than high-speed performance. The lower slew rate reflects different design priorities. Substitution is appropriate for precision, low-noise applications where input bias current is critical. For applications requiring high slew rate and fast transient response, J-FET alternatives are not suitable.

Q4: Are all substitute parts available in the same 8-DIP through-hole package?

A: All substitute parts except TLE2141IDR are available in 8-DIP through-hole packaging (0.300", 7.62mm), enabling direct PCB socket compatibility. TLE2141IDR uses 8-SOIC surface-mount packaging and requires PCB redesign. All through-hole alternatives maintain identical pin configuration and footprint compatibility with TLE2141IP.

Q5: What is the inventory status of substitute parts?

A: TLE2141IDR has the highest inventory (8,868 units), followed by LT1792CN8#PBF (1,900 units) and LT1792ACN8#PBF (2,270 units). Lowest inventory parts are LT1792IN8#PBF (697 units) and LT1792AIN8#PBF (944 units). For long-term supply security, TLE2141IDR and LT1792CN8#PBF are preferred due to higher stock levels and Active product status.

Q6: Can TLE2141IP be substituted in applications requiring extended temperature operation below -40°C or above 105°C?

A: No. The TLE2141IP operating range is -40°C to 105°C. No substitute parts in this list extend beyond these limits. Applications requiring operation outside this range require alternative amplifier families not included in this reference.

Q7: What compliance certifications apply to all substitute parts?

A: All substitute parts are ROHS3 compliant, REACH unaffected, and carry ECCN EAR99 classification. HTSUS code 8542.33.0001 applies uniformly across all parts, ensuring consistent regulatory and tariff treatment.