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Texas Instruments TLE2081CP
- Part No.:
- TLE2081CP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLE2081CP.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,361
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Product details
Overview
TLE2081CP from Texas Instruments is a single-channel Excalibur high-speed JFET-input operational amplifier designed for precision AC-coupled signal conditioning in ±2.25 V to ±19 V supply systems. It delivers 10.6 MHz unity-gain bandwidth, 32 V/μs slew rate, and ±14.5 V output swing at ±15 V supplies, enabling high-fidelity amplification in oscilloscopes, digital multimeters, and flight control units.
For engineers reviewing the TLE2081CP datasheet, TLE2081CP pinout, TLE2081CP application, or TLE2081CP equivalent, key selection criteria include its 6 mV max input offset voltage (C-suffix, 0°C to 70°C), 2.92 mA supply current per amplifier, PDIP-8 package with 9.81 mm × 9.43 mm footprint, and direct upgrade path from TL081 without layout changes.
Technical Context
The TLE2081CP uses a JFET-input stage with high-impedance differential pair architecture, delivering low input bias current (15–175 nA) and low input noise voltage (7 nV/√Hz at ±15 V). Its internal compensation ensures stable unity-gain operation with 56° phase margin and 300 kHz full-output-swing bandwidth.
It operates across ±2.25 V to ±19 V supplies, supports common-mode input ranges from –10.9 V to +15 V (at ±15 V), and maintains DC precision with 85 dB CMRR and 99 dB supply-voltage rejection ratio - critical for high-resolution data acquisition and metering front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-gain bandwidth | 10.6 MHz - enables stable closed-loop gain ≥1 with minimal phase lag up to audio and low-MHz frequencies |
| Slew rate | 32 V/μs - supports fast transient response for 10 V step signals settling within 0.4 μs to 1 mV |
| Input offset voltage (max) | 6 mV at 25°C - defines worst-case DC error in precision sensor amplification or reference buffering |
| Supply voltage range | ±2.25 V to ±19 V - accommodates wide dynamic signal range in industrial power monitoring and battery-powered test gear |
| Output voltage swing (±15 V) | ±11.5 V at 20 mA load - delivers rail-to-rail usable amplitude for driving ADC inputs or analog comparators |
| Input bias current (max) | 175 nA - minimizes voltage error across high-impedance source networks (e.g., piezoelectric sensors) |
| Total harmonic distortion + noise | 0.0032% at 1 kHz - preserves signal fidelity in low-power audio processing and spectral analysis paths |
Pinout & Package
Package: PDIP-8 (Plastic Dual Inline Package), 9.81 mm × 9.43 mm body size with 2.54 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | No connect - must remain unconnected to avoid parasitic coupling or latch-up risk |
| 2 | IN– | Inverting input - primary feedback node for standard op-amp configurations (inverting amp, integrator) |
| 3 | IN+ | Non-inverting input - used for buffer, non-inverting amplifier, or comparator reference input |
| 4 | VCC– | Negative supply rail - connects to system ground or negative voltage rail; decoupling capacitor required |
| 5 | NC | No connect - electrically isolated; floating or tied to ground degrades noise performance |
| 6 | OUT | Amplified output - drives loads up to ±65 mA short-circuit; requires series resistor for capacitive loads >100 pF |
| 7 | VCC+ | Positive supply rail - connects to system positive rail; separate decoupling from VCC– improves PSRR |
| 8 | NC | No connect - no internal connection; PCB trace stubs must be minimized to reduce EMI pickup |
Key Features
| Feature | Design Value |
|---|---|
| Direct TL081 upgrade | Pins 1–8 match TL081CP; same PDIP-8 footprint and electrical interface - zero redesign needed |
| Wider supply rails | ±19 V operation extends dynamic range by >2× vs. TL081 (±15 V), reducing clipping in high-voltage transducer interfaces |
| Low input noise | 7 nV/√Hz at ±15 V enables sub-mV resolution in 16-bit+ data acquisition front-ends |
| High slew rate | 32 V/μs supports >100 kHz full-power bandwidth for 10 Vpp signals - essential for oscilloscope vertical amplifiers |
| Stable unity-gain operation | 56° phase margin with 25 pF load ensures robustness in active filters and gain-of-1 buffers without external compensation |
Applications
| Oscilloscopes and Digitizers | Digital Multimeter (DMM) |
|---|---|
|
Use Scenario: Amplifying fast-rising edge signals from probe tips before ADC sampling in portable and benchtop digitizers. IC Role / Device Role / Timing Role: High-speed voltage follower and gain-stage amplifier in the analog front-end signal chain. Use Value: 32 V/μs slew rate and 10.6 MHz bandwidth preserve rise time integrity of 10 ns edges; ±14.5 V swing matches 16-bit ADC input range. |
Use Scenario: Precision DC and AC voltage/current measurement with auto-ranging and RMS conversion in handheld DMMs. IC Role / Device Role / Timing Role: Low-drift buffer and programmable-gain amplifier for sensor excitation and signal conditioning. Use Value: 6 mV max input offset and 85 dB CMRR minimize measurement error across 4½-digit resolution; JFET input avoids loading high-impedance shunts. |
| Flight Control Unit | AC Charging (Pile) Station |
|
Use Scenario: Signal conditioning of inertial sensor outputs (gyros, accelerometers) and actuator feedback in UAV autopilot systems. IC Role / Device Role / Timing Role: Low-noise, rail-compatible amplifier for analog sensor fusion and closed-loop servo control loops. Use Value: ±19 V supply tolerance accommodates avionics 28 VDC bus regulation; 7 nV/√Hz noise floor preserves angular rate resolution below 0.01°/s. |
Use Scenario: Isolated voltage and current sensing in Level 2 EV charging stations with bidirectional power flow monitoring. IC Role / Device Role / Timing Role: High-common-mode-rejection amplifier in shunt-based current measurement and DC-link voltage scaling. Use Value: 85 dB CMRR rejects 50/60 Hz noise from switching converters; ±11.5 V output swing drives isolation amplifier inputs directly. |
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, ±15 V max supply, 15 mV max VIO | Acceptable for <100 kHz signal paths but insufficient for oscilloscope front-ends or fast-settling DMMs | Select TL081CP only when cost sensitivity outweighs speed and precision requirements |
| OPA2134PA | 10 MHz bandwidth, 20 V/μs slew rate, ±18 V supply, 500 μV max VIO, FET input | Better DC accuracy and lower noise (8 nV/√Hz), but higher quiescent current (4 mA) and no direct pin compatibility | Choose OPA2134PA for ultra-low-offset metrology where board redesign is acceptable |
Compared with TL081CP and OPA2134PA, the TLE2081CP uniquely balances 10.6 MHz bandwidth, 32 V/μs slew rate, and PDIP-8 pin compatibility - making it the only drop-in upgrade for legacy TL081 designs requiring higher speed without layout revision.
Availability
TLE2081CP is available at Aetrix Electronics and suitable for oscilloscopes and digitizers, digital multimeters (DMM), and flight control units requiring stable component supply across extended temperature and voltage operating conditions.
Supply support for TLE2081CP 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 solutions, with over 90 years of innovation in precision amplifiers and signal-chain ICs.
The TLE208x family was engineered for high-voltage, high-speed analog signal conditioning in test equipment, industrial instrumentation, and aerospace systems - emphasizing bandwidth, output drive, and DC precision under wide supply and temperature ranges.
FAQ
What is the maximum supply voltage rating for the TLE2081CP?
The TLE2081CP has an absolute maximum supply voltage rating of ±19 V (38 V total), verified per Section 6.1 Absolute Maximum Ratings in the TI SLOS182C datasheet. Operation beyond this risks permanent damage. Recommended operating range is ±2.25 V to ±19 V, with full specification compliance guaranteed across that span for the C-suffix grade (0°C to 70°C).
Is the TLE2081CP pin-compatible with the TL081CP?
Yes, the TLE2081CP is fully pin-compatible with the TL081CP in the PDIP-8 package: both share identical pin 1 (NC), pin 2 (IN–), pin 3 (IN+), pin 4 (VCC–), pin 5 (NC), pin 6 (OUT), pin 7 (VCC+), and pin 8 (NC) assignments and functions. This allows direct replacement without PCB modification.
What is the typical input offset voltage of the TLE2081CP at 25°C?
The typical input offset voltage of the TLE2081CP is 0.49 mV at 25°C and ±15 V supply, as specified in Section 6.6 of the TI SLOS182C datasheet. The maximum guaranteed value is 6 mV across the full 0°C to 70°C operating range, supporting precision applications like DMM front-ends and sensor signal conditioning.
Does the TLE2081CP require external compensation for unity-gain stability?
No, the TLE2081CP is internally compensated for unity-gain stability. Its phase margin is 56° at unity gain with a 25 pF capacitive load, as confirmed in Section 6.5 and 6.7 of the datasheet. No external compensation components are needed for standard non-inverting or inverting configurations with gains ≥1.
What is the output current capability of the TLE2081CP?
The TLE2081CP provides ±65 mA short-circuit output current, as specified in Sections 6.4 and 6.6 of the TI SLOS182C datasheet. Under normal linear operation, it delivers ±20 mA with ±11.5 V swing at ±15 V supplies - sufficient to drive ADC reference buffers, analog switches, or moderate-impedance transmission lines without external boost stages.
TLE2081CP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 490 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
TLE2081CP FAQ
1.How can I place an order for TLE2081CP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2081CP 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 TLE2081CP reliable?
The price and inventory of TLE2081CP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2081CP is usually 5 days.
3.What payment methods are accepted for TLE2081CP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2081CP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2081CP?
TLE2081CP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2081CP 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 TLE2081CP?
For technical support, including TLE2081CP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2081CP requirements.
6.How does Aetrix verify that TLE2081CP is sourced from the original manufacturer or authorized distributors?
All TLE2081CP 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 TLE2081CP meets industry standards.
7.What is the process for return or replacement of TLE2081CP?
All TLE2081CP units undergo pre-shipment inspection (PSI). If there is an issue with TLE2081CP, 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 TLE2081CP part is unused and in its original packaging.
Return procedure for TLE2081CP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE2081CP Tags
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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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