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Texas Instruments TLE2081CDR
- Part No.:
- TLE2081CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2081CDR.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,137
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Product details
Overview
TLE2081CDR 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 2.48–2.92 mA quiescent current per amplifier. It serves as a direct upgrade to TL071/TL081 in precision AC-coupled signal conditioning paths within oscilloscopes, data acquisition front-ends, and battery-powered test equipment.
For engineers reviewing the TLE2081CDR datasheet, TLE2081CDR pinout, TLE2081CDR application, or TLE2081CDR equivalent, key selection criteria include its 10.6 MHz bandwidth at unity gain, ±19 V rail operation, low 28 nV/√Hz input voltage noise at 1 kHz (±5 V), and SOIC-8 package compatibility with legacy TL081 footprints-enabling drop-in performance enhancement without layout changes.
Technical Context
The TLE2081CDR uses a JFET-input stage for high input impedance (>100 MΩ common-mode, >6 TΩ differential) and low input bias current (15–175 nA), enabling accurate amplification of high-impedance sensor signals. Its internal compensation ensures stable unity-gain operation with 56° phase margin and 300 kHz full-swing bandwidth under 25 pF load.
It delivers rail-to-rail output swing capability: ±4.985 V at ±5 V supplies (200 μA load) and ±14.985 V at ±15 V supplies, while maintaining <0.0032% THD+N at 1 kHz. The device operates across 0°C to 70°C and supports dual-supply configurations only-no single-supply operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-gain bandwidth | 10.6 MHz - enables stable closed-loop operation up to 10 MHz with minimal phase loss in buffer or gain-of-1 configurations |
| Slew rate | 32 V/μs - supports fast transient response for 2 V step inputs settling to 1 mV in 0.4 μs at ±15 V supplies |
| Supply voltage range | ±2.25 V to ±19 V - provides extended dynamic signal range over TL081 (±15 V max), critical for high-voltage sensor interfaces |
| Input offset voltage (max) | 6 mV at 25°C - ensures DC accuracy in precision instrumentation without external nulling circuitry |
| Input voltage noise | 28 nV/√Hz at 1 kHz (±5 V) - lower than TL081's ~40 nV/√Hz, improving SNR in low-level analog front-ends |
| Common-mode input range | –10.9 V to +15 V at ±15 V supplies - allows input signals to swing within 1.1 V of negative rail, supporting wide-range bipolar sensing |
| THD + N | 0.0032% at 1 kHz, 3 VRMS - meets fidelity requirements for audio and measurement-grade signal chains |
Pinout & Package
Package: SOIC-8 (D package), 4.9 mm × 6.0 mm body, tape-and-reel (R suffix). Pin 1 marked by beveled corner or dot; standard JEDEC MS-012AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No connect (NC) | Internally unused; must remain unconnected to avoid parasitic coupling or latch-up risk |
| 2 | Inverting input (IN–) | High-impedance JFET node; requires guarded trace routing to minimize leakage-induced offset drift |
| 3 | Non-inverting input (IN+) | Matched to IN– for CMRR >85 dB; balanced PCB layout essential for rejection of common-mode interference |
| 4 | Negative supply (VCC–) | Reference for all internal biasing; decoupling capacitor (0.1 μF ceramic) required within 5 mm |
| 5 | No connect (NC) | Unused terminal; leave floating-no tie to ground or supply |
| 6 | Output (OUT) | Capable of ±65 mA short-circuit current; drives 600 Ω loads with <0.01% gain error at DC |
| 7 | Positive supply (VCC+) | Accepts up to +19 V; separate decoupling from VCC– improves PSRR (82–99 dB) across frequency |
| 8 | No connect (NC) | Not bonded; electrically isolated-must not be soldered or routed |
Key Features
| Feature | Design Value |
|---|---|
| Direct TL071/TL081 upgrade path | Pins 1–8 match TL081C/D footprints; same SOIC-8 package enables board-level replacement without redesign |
| Excalibur process technology | JFET input stage with 100 MΩ input resistance and sub-100 nA bias current enables high-Z source interfacing |
| Wider supply rails | ±19 V operation extends usable input/output swing beyond TL081's ±15 V limit, reducing clipping in high-dynamic-range systems |
| Low 1/f noise corner | 2.77 μVPP integrated noise (0.1–10 Hz) supports precision DC-coupled measurements in digital multimeters and electricity meters |
| Stable unity-gain configuration | 56° phase margin with 25 pF capacitive load ensures robustness in driving cables or ADC input filters without oscillation |
Applications
| Oscilloscope Front-End Amplifier | Digital Multimeter (DMM) Input Stage |
|---|---|
|
Use Scenario: Amplifies attenuated probe signals before digitization in 100 MHz-class benchtop oscilloscopes. IC Role / Device Role / Timing Role: Single-ended gain-of-10 buffer with 10.6 MHz bandwidth and low noise to preserve signal integrity. Use Value: 32 V/μs slew rate prevents distortion on fast edges; ±19 V rails support ±10 V input ranges without clipping. |
Use Scenario: Conditions high-impedance voltage inputs in handheld DMMs measuring mV to 1000 V ranges. IC Role / Device Role / Timing Role: Precision non-inverting amplifier with <6 mV offset and 2.77 μVPP 0.1–10 Hz noise. Use Value: JFET input draws <175 nA bias current, minimizing loading error on 10 MΩ DMM input impedance. |
| AC Charging Station Control Loop | Flight Control Unit Signal Conditioning |
|
Use Scenario: Isolates and scales current-sense signals in bidirectional EV charger power stages operating at 400–800 V DC. IC Role / Device Role / Timing Role: High-voltage differential amplifier interface with ±19 V supply tolerance. Use Value: Common-mode input range extends to –10.9 V at ±15 V supplies, accommodating negative-side shunt monitoring. |
Use Scenario: Buffers analog sensor outputs (e.g., gyros, accelerometers) in airborne flight control units requiring DO-160 compliance. IC Role / Device Role / Timing Role: Low-noise, rail-compatible amplifier for 0–5 V sensor scaling prior to SAR ADC sampling. Use Value: 28 nV/√Hz input noise preserves resolution of 16-bit sensors; 85 dB CMRR rejects engine EMI. |
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 |
|---|---|---|---|
| TL081CDR | Lower 4 MHz bandwidth, 13 V/μs slew rate, ±15 V max supply, higher 18 nV/√Hz noise at 10 kHz | Legacy design reuse where bandwidth <5 MHz suffices and cost sensitivity outweighs performance gains | Select TL081CDR only when existing BOM validation prohibits change; TLE2081CDR offers measurable improvement in speed/noise/rail range |
| OPA1611AIDR | Lower 1.1 nV/√Hz noise, 50 MHz GBW, but ±18 V max supply and higher 3.6 mA ICC; requires external compensation for unity-gain stability | Ultra-low-noise audio or precision measurement where THD+N <0.0001% and bandwidth >20 MHz are mandatory | Choose OPA1611AIDR for new designs demanding best-in-class noise; TLE2081CDR remains optimal for TL081 drop-in upgrades with proven stability |
Compared with TL081CDR, TLE2081CDR doubles bandwidth and slew rate while extending supply rails and lowering noise-making it ideal for performance-critical replacements. Versus OPA1611AIDR, TLE2081CDR trades ultra-low noise for guaranteed unity-gain stability and lower quiescent current, simplifying design in industrial instrumentation.
Availability
TLE2081CDR is available at Aetrix Electronics and suitable for oscilloscope front-ends, digital multimeter input stages, and AC charging station control loops requiring stable component supply, long-term manufacturability, and TI-authorized traceability.
Supply support for TLE2081CDR 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 high-reliability analog ICs.
The TLE208x Excalibur family was designed specifically for high-speed, high-voltage precision amplification in test & measurement, industrial control, and energy infrastructure-delivering JFET-input performance with enhanced DC accuracy and AC bandwidth over legacy TL0xx series.
FAQ
What is the maximum supply voltage rating for the TLE2081CDR?
The TLE2081CDR supports dual-supply operation from ±2.25 V to ±19 V. Absolute maximum ratings specify 38 V total supply voltage (VCC+ to VCC–), but recommended operation caps at ±19 V to ensure parametric performance and reliability. Exceeding ±19 V risks exceeding internal junction temperature limits and degrading long-term stability.
Does the TLE2081CDR support single-supply operation?
No, the TLE2081CDR is specified and characterized exclusively for dual-supply operation. Its input common-mode range and output swing are defined relative to symmetric positive and negative rails. Attempting single-supply use (e.g., VCC– = GND) violates recommended operating conditions and results in undefined behavior, including potential phase reversal or latch-up.
How does the TLE2081CDR compare to TL081CDR in terms of noise performance?
The TLE2081CDR delivers 28 nV/√Hz input voltage noise at 1 kHz under ±5 V supplies-significantly lower than TL081CDR's typical 40 nV/√Hz. At 10 kHz, TLE2081CDR maintains 11.6 nV/√Hz versus TL081CDR's ~15 nV/√Hz. This 30–40% noise reduction directly improves SNR in low-amplitude signal conditioning, such as DMM front-ends or sensor amplifiers.
Is the TLE2081CDR pin-compatible with TL081CDR in SOIC-8 packages?
Yes, the TLE2081CDR uses the identical SOIC-8 (D) package and pinout as TL081CDR: Pin 2 (IN–), Pin 3 (IN+), Pin 4 (VCC–), Pin 6 (OUT), Pin 7 (VCC+) are functionally and physically aligned. NC pins (1, 5, 8) match exactly. This enables true drop-in replacement without PCB modification.
What is the typical settling time of the TLE2081CDR for a 10 V step input?
At ±15 V supplies, the TLE2081CDR settles to within 1 mV of final value in 1.5 μs for a 10 V step input under unity-gain configuration (AVD = –1) and 2 kΩ load. This is verified in Section 6.7 of the datasheet and reflects its 32 V/μs slew rate and optimized internal compensation for fast transient response in high-speed data acquisition systems.
TLE2081CDR 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:
- 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2081CDR FAQ
1.How can I place an order for TLE2081CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2081CDR 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 TLE2081CDR reliable?
The price and inventory of TLE2081CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2081CDR is usually 5 days.
3.What payment methods are accepted for TLE2081CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2081CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2081CDR?
TLE2081CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2081CDR 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 TLE2081CDR?
For technical support, including TLE2081CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2081CDR requirements.
6.How does Aetrix verify that TLE2081CDR is sourced from the original manufacturer or authorized distributors?
All TLE2081CDR 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 TLE2081CDR meets industry standards.
7.What is the process for return or replacement of TLE2081CDR?
All TLE2081CDR units undergo pre-shipment inspection (PSI). If there is an issue with TLE2081CDR, 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 TLE2081CDR part is unused and in its original packaging.
Return procedure for TLE2081CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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