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Texas Instruments TLE2081ACD
- Part No.:
- TLE2081ACD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2081ACD.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,836
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Product details
Overview
TLE2081ACD from Texas Instruments is a single high-speed JFET-input operational amplifier in SOIC-8 package, delivering 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 TLE2081ACD datasheet, TLE2081ACD pinout, TLE2081ACD application, or TLE2081ACD equivalent, this page provides verified electrical specifications, SOIC-8 terminal mapping, Excalibur-family performance context, and validated alternative options for high-voltage, low-noise op-amp selection in industrial test equipment and power electronics monitoring circuits.
Technical Context
The TLE2081ACD implements a JFET-input differential pair with high-impedance (>100 MΩ common-mode, >6 TΩ differential) inputs and rail-to-rail output swing capability up to ±14.5 V at ±15 V supplies. Its internal compensation ensures stable unity-gain operation with 56° phase margin into 2 kΩ loads with 25 pF capacitive load.
It operates across 0°C to 70°C ambient temperature, supports ±2.25 V to ±19 V dual-supply configurations, and achieves 2.77 μVPP integrated noise (0.1 Hz–10 Hz) and 0.0032% THD+N at 1 kHz - enabling high-fidelity analog signal amplification without external trimming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-gain bandwidth | 10.6 MHz - enables stable closed-loop gain ≥1 operation up to audio and low-RF frequencies without external compensation. |
| Slew rate | 32 V/μs - supports fast transient response for 2 V step signals settling to 1 mV in ≤0.4 μs at ±15 V supply. |
| Input offset voltage (max) | 3 mV at 25°C - reduces DC error in precision gain stages without nulling circuitry in DMM and metering applications. |
| Supply voltage range | ±2.25 V to ±19 V - accommodates wide dynamic range in AC charging station sensor interfaces and industrial power stage feedback loops. |
| Input bias current (max) | 175 nA - preserves accuracy in high-impedance transducer interfaces (e.g., piezoelectric sensors, photodiode TIA feedback networks). |
| Common-mode input range | –11.9 V to +15 V at ±15 V supply - allows direct sensing of signals near negative rail in single-supply-derived systems. |
| THD+N | 0.0032% at 1 kHz - meets fidelity requirements for low-distortion audio processing and digitizer front-end amplification. |
Pinout & Package
Package: SOIC-8 (D), 4.9 mm × 6.0 mm body, 1.27 mm pitch, gull-wing leads. RoHS-compliant, tape-and-reel compatible (TLE2081ACDR variant available).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No connect | Internally unused; must remain unconnected per datasheet to avoid parasitic coupling. |
| 2 | Inverting input (IN–) | Differential input node with 100 MΩ common-mode resistance; connects to feedback network in inverting amplifier configurations. |
| 3 | Non-inverting input (IN+) | Differential input node with identical impedance to Pin 2; used for reference biasing or non-inverting gain stages. |
| 4 | Negative supply (VCC–) | Ground reference for negative rail; requires local 0.1 μF ceramic decoupling adjacent to pin. |
| 5 | No connect | Internally unused; floating connection avoids noise injection into sensitive analog core. |
| 6 | Output (OUT) | Class-AB output stage capable of ±20 mA continuous drive; supports direct interface to 600 Ω loads or ADC input buffers. |
| 7 | Positive supply (VCC+) | Power rail input; requires separate 0.1 μF ceramic + 10 μF tantalum decoupling per TI layout guidelines. |
| 8 | No connect | Unused terminal; no internal connection; PCB trace should be omitted or isolated. |
Key Features
| Feature | Design Value |
|---|---|
| Direct TL071/TL081 upgrade path | Pins 1–8 match TL081CD/TL071CD SOIC-8 footprint and basic functionality, enabling drop-in replacement without board redesign. |
| Excalibur high-speed architecture | 10.6 MHz bandwidth and 32 V/μs slew rate exceed TL081 (3 MHz / 13 V/μs) by >2×, supporting faster settling in automated test equipment. |
| Wider supply rails (±19 V) | Enables full-scale signal handling in ±15 V systems with headroom for transients - critical for AC drive power stage voltage monitoring. |
| Low 1/f noise (2.77 μVPP) | Minimizes baseline drift in electricity meter current-sensing amplifiers over time and temperature. |
| High CMRR (85 dB) | Maintains accuracy in noisy industrial environments where common-mode interference exceeds 100 mV on sensor lines. |
Applications
| Oscilloscope Vertical Amplifier Stage | Digital Multimeter (DMM) Input Buffer |
|---|---|
Use Scenario: Amplifies attenuated probe signals before ADC sampling in 100 MHz-class bench oscilloscopes. IC Role / Device Role / Timing Role: High-speed, low-noise gain block with wide common-mode range to handle ±5 V input offsets. Use Value: 32 V/μs slew rate ensures <0.4 μs settling to 1 mV for 10 V step inputs, preserving waveform fidelity. |
Use Scenario: Buffers high-impedance voltage divider outputs in 6½-digit handheld DMMs. IC Role / Device Role / Timing Role: Precision unity-gain follower with <3 mV offset to minimize measurement zero-error. Use Value: 100 MΩ input resistance prevents loading of 10 MΩ divider networks, maintaining accuracy. |
| AC Charging Station Sensor Interface | Flight Control Unit Analog Signal Conditioning |
Use Scenario: Isolates and conditions shunt-based current measurements in EV charging pile power modules. IC Role / Device Role / Timing Role: High-voltage differential amplifier with ±19 V supply tolerance for direct connection to isolation amplifiers. Use Value: ±14.5 V output swing at ±15 V supply enables full-range scaling into 16-bit SAR ADCs. |
Use Scenario: Amplifies gyroscope and accelerometer analog outputs in UAV flight controllers. IC Role / Device Role / Timing Role: Low-drift, low-noise signal conditioner operating across –40°C to +85°C ambient. Use Value: 3 mV max VIO and 3.2 μV/°C tempco ensure <5 mV total offset drift over full temperature range. |
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), slower slew rate (13 V/μs), higher VIO (10 mV max), same SOIC-8 package. | Acceptable for <100 kHz signal paths but insufficient for fast-settling DMM auto-ranging or oscilloscope front-ends. | Select when cost sensitivity outweighs speed/precision needs and existing TL071 layout reuse is required. |
| OPA2134PA | Higher precision (0.5 mV VIO), lower noise (8 nV/√Hz), but lower slew rate (20 V/μs) and narrower supply (±18 V max). | Better for audio-grade low-distortion paths; less suitable for high-dV/dt industrial transients requiring >30 V/μs. | Prefer for battery-powered portable instruments where ultra-low distortion and low quiescent current dominate. |
Compared with TL071CDR and OPA2134PA, the TLE2081ACD delivers optimal balance of speed (10.6 MHz), precision (3 mV VIO), and ruggedness (±19 V supply), making it the preferred choice for industrial test and power electronics monitoring where both bandwidth and DC accuracy are simultaneously critical.
Availability
TLE2081ACD is available at Aetrix Electronics and suitable for oscilloscope vertical amplifiers, digital multimeter input buffers, and AC charging station sensor interfaces requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TLE2081ACD 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 heritage in precision op-amps and industrial signal chain solutions.
The TLE208x Excalibur family was designed specifically for high-speed, high-voltage analog signal conditioning in test & measurement, energy metering, and motor control applications - emphasizing bandwidth, rail tolerance, and low 1/f noise without sacrificing DC accuracy.
FAQ
What is the maximum supply voltage rating for the TLE2081ACD?
The TLE2081ACD supports dual-supply operation from ±2.25 V to ±19 V, with absolute maximum ratings of ±38 V across VCC+ and VCC– terminals. Operation beyond ±19 V is not recommended, as specified in Section 6.1 of the datasheet, and may compromise reliability or parametric performance.
Does the TLE2081ACD have pin compatibility with the TL081CD?
Yes, the TLE2081ACD uses the same SOIC-8 (D) package and identical pinout as the TL081CD and TL071CD, including IN– (Pin 2), IN+ (Pin 3), VCC– (Pin 4), OUT (Pin 6), and VCC+ (Pin 7). This enables direct physical replacement in legacy designs without PCB modification.
What is the typical input bias current of the TLE2081ACD at 25°C?
The typical input bias current of the TLE2081ACD is 15 nA at 25°C under ±5 V supply conditions, with a maximum of 175 nA across the full 0°C to 70°C operating range. This JFET-input characteristic ensures minimal loading of high-impedance sensor sources.
Can the TLE2081ACD drive a 600 Ω load effectively?
Yes, the TLE2081ACD delivers 80 dB large-signal open-loop gain into 600 Ω loads at ±5 V supply and maintains stable phase margin. Its output stage supports ±20 mA continuous current, enabling direct drive of standard video or instrumentation line drivers without external buffering.
Is the TLE2081ACD suitable for use in electricity metering applications?
Yes, the TLE2081ACD is explicitly listed in TI's documentation for electricity meter applications due to its low 1/f noise (2.77 μVPP), 3 mV max input offset, and stable performance across temperature - all critical for accurate RMS current/voltage measurement over years of field operation.
TLE2081ACD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2081ACD FAQ
1.How can I place an order for TLE2081ACD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2081ACD 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 TLE2081ACD reliable?
The price and inventory of TLE2081ACD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2081ACD is usually 5 days.
3.What payment methods are accepted for TLE2081ACD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2081ACD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2081ACD?
TLE2081ACD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2081ACD 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 TLE2081ACD?
For technical support, including TLE2081ACD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2081ACD requirements.
6.How does Aetrix verify that TLE2081ACD is sourced from the original manufacturer or authorized distributors?
All TLE2081ACD 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 TLE2081ACD meets industry standards.
7.What is the process for return or replacement of TLE2081ACD?
All TLE2081ACD units undergo pre-shipment inspection (PSI). If there is an issue with TLE2081ACD, 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 TLE2081ACD part is unused and in its original packaging.
Return procedure for TLE2081ACD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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