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Texas Instruments TLE2081ACDR
- Part No.:
- TLE2081ACDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2081ACDR.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,260
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Product details
Overview
TLE2081ACDR from Texas Instruments is a single-channel Excalibur high-speed JFET-input operational amplifier with 10.6 MHz unity-gain bandwidth, 32 V/μs slew rate, ±19 V supply capability, and 3 mV max input offset voltage at 25°C. It serves as a direct upgrade to TL071/TL081 in precision AC-coupled signal conditioning paths within oscilloscopes, digital multimeters, and high-speed data acquisition front-ends.
For engineers reviewing the TLE2081ACDR datasheet, TLE2081ACDR pinout, TLE2081ACDR application, or TLE2081ACDR equivalent, this device delivers verified high-voltage swing, low 1/f noise (2.77 μVPP, 0.1–10 Hz), and stable 56° phase margin-critical for closed-loop stability in active filter and sensor interface designs requiring >10 MHz small-signal bandwidth.
Technical Context
The TLE2081ACDR uses a JFET-input stage enabling ultra-low input bias current (15 nA typical) and high input impedance (100 MΩ common-mode, 6 TΩ differential), supporting high-source-impedance transducer interfaces without significant DC error. Its internal compensation ensures unconditional stability with 2 kΩ load and 25 pF capacitive load.
It operates across 0°C to 70°C ambient temperature with ±2.25 V to ±19 V dual supplies, delivering rail-to-rail output swing capability (±14.5 V at 20 mA load) and 85 dB CMRR-enabling robust performance in noisy industrial analog signal chains where common-mode rejection and wide dynamic range are essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-gain bandwidth | 10.6 MHz - supports stable closed-loop gain ≥1 up to 10 MHz without peaking |
| Slew rate | 32 V/μs - enables full-scale 10 Vpp output at 500 kHz without distortion |
| Input offset voltage (max) | 3 mV at 25°C - limits DC error to ≤0.03% of 10 V full-scale in precision gain stages |
| Supply voltage range | ±2.25 V to ±19 V - accommodates wide dynamic range in ±15 V industrial systems and ±5 V portable instruments |
| Input bias current (typ) | 15 nA - allows use with >1 MΩ source impedances without significant offset drift |
| Phase margin | 56° at unity gain - guarantees stable operation with 25 pF capacitive load and 2 kΩ series resistance |
| Equivalent input noise (0.1–10 Hz) | 2.77 μVPP - supports sub-millivolt resolution in low-frequency sensor amplification |
Pinout & Package
Package: SOIC-8 (D package), 4.9 mm × 6.0 mm, tape-and-reel (R suffix). Pin 1 is NC; pins 2 and 3 are IN− and IN+; pin 4 is VCC−; pin 5 is NC; pin 6 is OUT; pin 7 is VCC+; pin 8 is NC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No connect | Must remain unconnected; no internal connection or function |
| 2 | Inverting input | Primary feedback node in inverting configurations; high-impedance JFET input |
| 3 | Non-inverting input | Reference input for non-inverting gain stages; matched to pin 2 for CMRR optimization |
| 4 | Negative supply | Return path for dual-supply operation; must be decoupled locally to ground |
| 5 | No connect | Unused terminal; electrically isolated from die |
| 6 | Output | Capable of ±20 mA continuous drive into resistive loads; stable with 25 pF capacitance |
| 7 | Positive supply | Power rail for high-voltage swing operation; requires local 0.1 μF ceramic decoupling |
| 8 | No connect | Unused terminal; no internal bond wire or circuit connection |
Key Features
| Feature | Design Value |
|---|---|
| Direct TL071/TL081 upgrade | Pins 1–8 compatible with TL081CDR/TL071CDR; same SOIC-8 footprint and biasing |
| Wider supply rails | ±19 V operation extends dynamic range by 27% vs. ±15 V TL081, reducing clipping in high-amplitude AC signals |
| Low 1/f noise | 2.77 μVPP (0.1–10 Hz) enables stable DC-coupled amplification of thermocouple and strain gauge outputs |
| High slew rate | 32 V/μs supports accurate reproduction of fast transients in oscilloscope vertical amplifiers and pulse conditioning |
| Input protection | JFET input stage withstands ±38 V absolute max supply and ±(VS + 0.2 V) differential input without latch-up |
Applications
| Oscilloscope Vertical Amplifier | Digital Multimeter Analog Front-End |
|---|---|
|
Use Scenario: Amplifies probe-sensed input signals before ADC sampling in 100 MHz bandwidth oscilloscopes. IC Role / Device Role / Timing Role: High-speed, low-noise gain block with ±14.5 V output swing driving 50 Ω or 1 MΩ inputs. Use Value: 10.6 MHz bandwidth and 32 V/μs slew rate preserve rise time integrity for 5 ns pulses; 2.77 μVPP noise avoids masking low-level signal details. |
Use Scenario: Buffers and conditions high-impedance voltage/current measurement paths in 6½-digit DMMs. IC Role / Device Role / Timing Role: Precision unity-gain buffer with 3 mV VIO and 15 nA IIB minimizing loading error on meter input dividers. Use Value: ±19 V supply enables full-scale 20 V range without external level-shifting; 85 dB CMRR rejects power-line interference during AC measurements. |
| High-Speed Data Acquisition Channel | AC Drive Power Stage Monitoring |
|
Use Scenario: Signal conditioning stage before SAR ADC in 1 MSPS industrial DAQ modules. IC Role / Device Role / Timing Role: Anti-aliasing filter driver and gain stage with stable 56° phase margin into 25 pF ADC input capacitance. Use Value: 32 V/μs slew rate settles 2 V steps to 1 mV in 0.4 μs, meeting timing budget for 1 μs conversion cycles. |
Use Scenario: Isolated current/voltage sensing amplifier in motor drive inverter control boards. IC Role / Device Role / Timing Role: High-common-mode rejection amplifier for shunt-based phase current measurement under ±400 V bus conditions. Use Value: 85 dB CMRR and ±19 V supply allow direct interfacing to isolated amplifiers; 10.6 MHz bandwidth captures PWM edge harmonics up to 5th order. |
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 |
|---|---|---|---|
| TL071CDR | Lower bandwidth (3 MHz), higher VIO (10 mV max), 13 V/μs slew rate | Not suitable for >5 MHz signal paths or low-noise <10 μVPP applications | Select when cost sensitivity outweighs bandwidth/noise requirements and ±15 V supply suffices |
| OPA1611AIDR | Lower noise (1.1 nV/√Hz), higher precision (125 μV VIO max), but 45 MHz GBW and ±18 V supply | Overqualified for general-purpose high-speed buffering; higher quiescent current (3.6 mA) | Choose only when sub-2 nV/√Hz noise and <200 μV offset are mandatory, accepting higher cost and power |
Compared with TL071CDR and OPA1611AIDR, the TLE2081ACDR uniquely balances 10.6 MHz bandwidth, ±19 V operation, and 2.77 μVPP low-frequency noise at moderate quiescent current (2.92 mA), making it optimal for cost-constrained, wide-supply industrial instrumentation where both speed and DC precision matter.
Availability
TLE2081ACDR is available at Aetrix Electronics and suitable for oscilloscope design, digital multimeter manufacturing, and high-speed data acquisition systems requiring stable component supply with guaranteed long-term sourcing.
Supply support for TLE2081ACDR 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 over 90 years of innovation in precision amplifiers and signal chain solutions.
The TLE208x family was engineered for high-voltage, high-speed analog signal conditioning in test equipment and industrial measurement-delivering Excalibur-class AC performance while maintaining DC precision and ruggedness.
FAQ
What is the maximum supply voltage rating for the TLE2081ACDR?
The TLE2081ACDR has an absolute maximum supply voltage of ±19 V per rail, with recommended operating range from ±2.25 V to ±19 V. Exceeding ±19 V risks permanent damage. The device maintains specified performance across its full ±19 V range, enabling direct use in ±15 V industrial systems and extended-range test equipment without external regulation.
Does the TLE2081ACDR support capacitive loads, and what is the maximum stable value?
Yes, the TLE2081ACDR is internally compensated for stability with up to 25 pF capacitive load when driving through a 2 kΩ series resistor, achieving 56° phase margin at unity gain. Driving larger capacitive loads directly (e.g., >100 pF) requires external isolation resistance or feedback network adjustment to maintain stability.
How does the input offset voltage of the TLE2081ACDR compare to the standard TLE2081CDR?
The TLE2081ACDR specifies a maximum input offset voltage of 3 mV at 25°C, versus 6 mV for the TLE2081CDR. This tighter VIO spec reduces DC error in precision gain stages-e.g., a 100× amplifier using TLE2081ACDR contributes ≤0.3 V offset error versus ≤0.6 V for TLE2081CDR-making it preferred for high-accuracy measurement front-ends.
Can the TLE2081ACDR replace TL081CDR in existing PCB layouts?
Yes, the TLE2081ACDR is pin-compatible with TL081CDR in the SOIC-8 (D) package, sharing identical pinout (NC, IN−, IN+, V−, NC, OUT, V+, NC) and footprint. No PCB changes are required, and it delivers immediate performance gains: 10.6 MHz bandwidth vs. 3 MHz, 32 V/μs slew rate vs. 13 V/μs, and ±19 V supply vs. ±15 V.
What is the typical input bias current of the TLE2081ACDR, and why does it matter?
The TLE2081ACDR has a typical input bias current of 15 nA, enabled by its JFET input stage. This low IIB minimizes voltage drop across high-impedance sources (e.g., photodiode bias networks or piezoelectric sensors), preventing signal attenuation and DC drift-critical in sensor interfaces where source impedances exceed 100 kΩ.
TLE2081ACDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2081ACDR FAQ
1.How can I place an order for TLE2081ACDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2081ACDR 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 TLE2081ACDR reliable?
The price and inventory of TLE2081ACDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2081ACDR is usually 5 days.
3.What payment methods are accepted for TLE2081ACDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2081ACDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2081ACDR?
TLE2081ACDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2081ACDR 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 TLE2081ACDR?
For technical support, including TLE2081ACDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2081ACDR requirements.
6.How does Aetrix verify that TLE2081ACDR is sourced from the original manufacturer or authorized distributors?
All TLE2081ACDR 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 TLE2081ACDR meets industry standards.
7.What is the process for return or replacement of TLE2081ACDR?
All TLE2081ACDR units undergo pre-shipment inspection (PSI). If there is an issue with TLE2081ACDR, 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 TLE2081ACDR part is unused and in its original packaging.
Return procedure for TLE2081ACDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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