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Texas Instruments TLE2081ACP
- Part No.:
- TLE2081ACP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLE2081ACP.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,945
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Product details
Overview
TLE2081ACP from Texas Instruments is a single-channel Excalibur high-speed JFET-input operational amplifier designed for precision AC-coupled signal conditioning in ±2.25V to ±19V supply systems. It delivers 10.6 MHz unity-gain bandwidth, 32 V/μs slew rate, and 2.77 μVPP (0.1–10 Hz) input noise voltage, enabling accurate high-speed data acquisition and oscilloscope front-end amplification.
For engineers reviewing the TLE2081ACP datasheet, TLE2081ACP pinout, TLE2081ACP application, or TLE2081ACP equivalent, this device serves as a direct upgrade path from TL081/TL071 with doubled bandwidth and extended ±19V supply rails-critical for high-dynamic-range analog stages in electricity meters, flight control units, and portable test equipment.
Technical Context
The TLE2081ACP uses a JFET-input differential pair architecture with high-impedance (>100 MΩ common-mode, >6 TΩ differential) inputs and internal frequency compensation optimized for unity-gain stability. Its 56° phase margin at unity gain ensures robust transient response under capacitive loads up to 25 pF.
It operates across 0°C to 70°C ambient temperature with ±2.25V to ±19V dual-supply capability, supporting rail-to-rail output swing within ±1.5V of each rail at 20 mA load-enabling wide-swing signal processing without external level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-gain bandwidth | 10.6 MHz - supports stable closed-loop operation at gains ≥1 with minimal phase lag in high-frequency filters and active equalizers. |
| Slew rate | 32 V/μs - enables faithful reproduction of fast 2-V step signals with ≤0.4 μs settling to 1 mV in oscilloscope vertical amplifiers. |
| Input offset voltage (max) | 6 mV - defines worst-case DC error in precision integrators and low-gain sensor interfaces without trimming. |
| Supply voltage range | ±2.25V to ±19V - allows operation in industrial ±15V systems and battery-powered ±5V designs without external regulators. |
| Input noise voltage | 2.77 μVPP (0.1–10 Hz) - ensures sub-millivolt baseline stability in high-resolution digital multimeter front-ends. |
| Common-mode input range | –10.9 V to +15 V at ±15 V supplies - accommodates ground-referenced AC signals with large DC offsets in power electronics monitoring. |
| Output current (short-circuit) | ±65 mA - sustains drive into 600 Ω loads typical in legacy test equipment line drivers and audio buffer stages. |
Pinout & Package
Package: PDIP-8 (Plastic Dual In-line Package), 9.81 mm × 9.43 mm footprint with through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | No connection - must remain unconnected per datasheet; floating pin avoids parasitic coupling. |
| 2 | IN– | Inverting input - accepts feedback network for stable closed-loop gain configurations (e.g., inverting amplifier, transimpedance stage). |
| 3 | IN+ | Non-inverting input - used for high-impedance signal sensing in buffer, comparator, or instrumentation amplifier topologies. |
| 4 | VCC– | Negative supply rail - connects to system ground or negative voltage source; establishes reference for bipolar operation. |
| 5 | NC | No connection - electrically isolated; PCB trace must be omitted to prevent noise injection. |
| 6 | OUT | Amplified output - drives downstream ADC inputs, cable lines, or active filter sections with 32 V/μs transient capability. |
| 7 | VCC+ | Positive supply rail - powers internal JFET stages; decoupling capacitor required near pin for high-frequency PSRR integrity. |
| 8 | NC | No connection - unused terminal; no routing or thermal pad connection permitted. |
Key Features
| Feature | Design Value |
|---|---|
| Direct TL081/TL071 upgrade | Pins 1–8 and electrical behavior match TL081CP/TL071CP, enabling drop-in replacement without layout change in existing designs. |
| ±19V supply capability | Extends dynamic range by 2× versus standard ±15V op-amps, reducing clipping risk in high-voltage sensor signal chains. |
| 32 V/μs slew rate | Supports >100 kHz full-power bandwidth at ±10V output swing, critical for digitizer front-end fidelity. |
| 2.77 μVPP low-frequency noise | Minimizes baseline drift in 16-bit+ DMMs and precision charge amplifiers where 0.1–10 Hz noise dominates error budget. |
| JFET input stage | Delivers >100 MΩ input resistance and <100 fA bias current, preserving accuracy in high-impedance pH probe and photodiode circuits. |
Applications
| Electricity Meter Front-End | Oscilloscope Vertical Amplifier |
|---|---|
Use Scenario: Amplifying isolated current transformer outputs before 24-bit sigma-delta ADC sampling. IC Role / Device Role / Timing Role: Single-ended to differential driver with gain of 10 and ±15V supply compliance. Use Value: 10.6 MHz bandwidth preserves harmonic content up to 500 kHz for Class 0.2 metering accuracy; 6 mV max VIO contributes <0.04% gain error at full scale. |
Use Scenario: High-fidelity vertical deflection amplifier driving CRT or active probe interface. IC Role / Device Role / Timing Role: Unity-gain buffer with 32 V/μs slew rate and 56° phase margin for stable 2-V step response. Use Value: 0.4 μs settling to 1 mV meets 100-MHz scope bandwidth requirements; ±19V rails support ±10V output swing into 50 Ω loads. |
| Digital Multimeter Input Stage | Flight Control Unit Signal Conditioning |
Use Scenario: Low-noise, high-Z buffer for thermocouple and RTD measurement circuits. IC Role / Device Role / Timing Role: Non-inverting amplifier with 100 MΩ input impedance and 2.77 μVPP noise floor. Use Value: Sub-μVPP noise enables 6½-digit resolution; JFET input prevents loading of high-impedance sensors. |
Use Scenario: Analog signal conditioning for inertial measurement unit (IMU) outputs in avionics-grade control loops. IC Role / Device Role / Timing Role: Precision gain stage with ±19V supply tolerance and 85 dB CMRR for EMI resilience. Use Value: 85 dB common-mode rejection suppresses engine ignition noise; 0°C to 70°C rating matches commercial aircraft environmental envelope. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed JFET-input op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL081CP | Lower 3 MHz bandwidth, 13 V/μs slew rate, ±15V max supply, 15 mV max VIO. | Acceptable for <100 kHz signal paths but insufficient for oscilloscope or high-speed DAQ front-ends. | Select when cost sensitivity outweighs bandwidth/noise requirements and existing TL081 designs require minimal validation. |
| OPA2134PA | 10 MHz bandwidth, 20 V/μs slew rate, ±18V max supply, 0.5 mV max VIO, FET input. | Better DC precision and lower distortion, but reduced short-circuit current (±25 mA) limits drive capability. | Prefer for audio and precision instrumentation where low VIO and THD dominate over output drive strength. |
Compared with TL081CP and OPA2134PA, the TLE2081ACP uniquely balances high slew rate (32 V/μs), wide supply range (±19V), and direct pin compatibility-making it optimal for upgrading legacy test equipment while maintaining PCB layout integrity and extending dynamic range.
Availability
TLE2081ACP is available at Aetrix Electronics and suitable for electricity meter front-ends, oscilloscope vertical amplifiers, and flight control unit signal conditioning requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for TLE2081ACP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision amplifiers and high-reliability industrial ICs.
The TLE208x family was engineered for high-speed, high-voltage analog signal conditioning in test and measurement, energy metering, and aerospace systems-emphasizing bandwidth, supply flexibility, and direct upgrade compatibility with legacy TI op-amps.
FAQ
What is the maximum supply voltage for TLE2081ACP?
The TLE2081ACP supports a total supply voltage (VCC+ – VCC–) up to 38 V, with individual rails rated from ±2.25 V to ±19 V. This allows operation at ±15 V for industrial systems or ±5 V in portable instruments while maintaining full AC performance specs such as 10.6 MHz bandwidth and 32 V/μs slew rate. Absolute maximum ratings must not be exceeded to ensure reliability.
Is TLE2081ACP pin-compatible with TL081CP?
Yes, the TLE2081ACP is fully pin-compatible with TL081CP in the PDIP-8 package: both share identical pin 1–8 assignments (NC, IN–, IN+, VCC–, NC, OUT, VCC+, NC) and mechanical footprint. No PCB redesign is needed for drop-in replacement, and key parameters-including input structure, gain-bandwidth product, and supply range-are enhanced while preserving functional interoperability.
What is the input bias current specification for TLE2081ACP?
The TLE2081ACP exhibits a typical input bias current of 15 nA at 25°C, with a maximum of 175 nA across the 0°C to 70°C operating range. As a JFET-input amplifier, this ultra-low bias current minimizes voltage errors in high-impedance sensor interfaces-such as piezoelectric transducers or pH electrodes-where leakage currents would otherwise dominate measurement uncertainty.
Does TLE2081ACP support unity-gain stable operation?
Yes, the TLE2081ACP is internally compensated for unity-gain stability, with a measured phase margin of 56° at unity gain under standard test conditions (VCC = ±15 V, CL = 25 pF, RL = 2 kΩ). This enables reliable use in voltage followers, active filters, and transimpedance configurations without external compensation components.
What is the typical input-referred voltage noise of TLE2081ACP at 1 kHz?
The TLE2081ACP delivers 28 nV/√Hz input-referred voltage noise at 1 kHz under ±5 V supply conditions, and 7 nV/√Hz under ±15 V supply-demonstrating improved noise performance at higher supply voltages due to optimized internal biasing. This low noise supports high-resolution measurements in digital multimeters and precision data acquisition systems where signal integrity below 100 μV is critical.
TLE2081ACP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- J-FET
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 45V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 pA
- Voltage - Input Offset:
- 470 µV
- Current - Supply:
- 1.7mA
- Current - Output / Channel:
- 48 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 38 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLE2081ACP FAQ
1.How can I place an order for TLE2081ACP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2081ACP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TLE2081ACP reliable?
The price and inventory of TLE2081ACP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2081ACP is usually 5 days.
3.What payment methods are accepted for TLE2081ACP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2081ACP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2081ACP?
TLE2081ACP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2081ACP order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TLE2081ACP?
For technical support, including TLE2081ACP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2081ACP requirements.
6.How does Aetrix verify that TLE2081ACP is sourced from the original manufacturer or authorized distributors?
All TLE2081ACP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TLE2081ACP meets industry standards.
7.What is the process for return or replacement of TLE2081ACP?
All TLE2081ACP units undergo pre-shipment inspection (PSI). If there is an issue with TLE2081ACP, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TLE2081ACP part is unused and in its original packaging.
Return procedure for TLE2081ACP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2081ACP Tags
-
LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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