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Texas Instruments TLE2081ID
- Part No.:
- TLE2081ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE2081ID.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,187
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Product details
Overview
TLE2081ID 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, and ±19 V supply capability. It delivers low input offset voltage (6 mV max at 25°C), low noise (7 nV/√Hz at 1 kHz, ±15 V), and operates across –40°C to 85°C. It serves as a direct upgrade to TL081 in precision analog front-ends for oscilloscopes and high-speed data acquisition systems.
For engineers reviewing the TLE2081ID datasheet, TLE2081ID pinout, TLE2081ID application, or TLE2081ID equivalent, key selection criteria include its wide supply range (±2.25 V to ±19 V), rail-to-rail output swing capability under load, JFET-input bias current (≤175 nA), and compatibility with legacy TL08x PCB layouts in SOIC-8 packages.
Technical Context
The TLE2081ID uses a JFET-input stage enabling high input impedance (>100 MΩ common-mode, >6 TΩ differential) and low input bias current, critical for high-impedance sensor interfaces. Its internal compensation ensures stable unity-gain operation with 56° phase margin and supports fast settling (0.25 μs to 10 mV on a 2 V step).
It features low THD+N (0.0032% at 1 kHz), low peak-to-peak input noise (2.77 μVPP, 0.1 Hz–10 Hz), and maintains DC precision (input offset drift ≤29 μV/°C) while delivering AC performance suitable for signal conditioning in portable test equipment and industrial metering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-gain bandwidth | 10.6 MHz - enables stable amplification up to audio and low RF frequencies without external compensation |
| Slew rate | 32 V/μs - supports faithful reproduction of fast transients in oscilloscope vertical amplifiers |
| Supply voltage range | ±2.25 V to ±19 V - accommodates wide dynamic signal range in high-voltage industrial sensing |
| Input offset voltage (max) | 6 mV at 25°C - ensures minimal DC error in precision gain stages and active filters |
| Input bias current (max) | 175 nA - preserves accuracy in high-impedance photodiode or piezoelectric sensor interfaces |
| Operating temperature | –40°C to +85°C - qualified for use in automotive cabin electronics and industrial power modules |
| THD+N | 0.0032% at 1 kHz - meets fidelity requirements in low-power audio processing paths |
Pinout & Package
Package: SOIC-8 (D package), 4.9 mm × 6.0 mm, surface-mount, moisture-sensitive level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No connect | Internally unused; must remain unconnected per datasheet |
| 2 (IN–) | Inverting input | Primary feedback node for closed-loop configurations; high-impedance JFET input |
| 3 (IN+) | Non-inverting input | High-impedance reference node; sensitive to layout-induced noise coupling |
| 4 (VCC–) | Negative supply | Connects to system ground or negative rail; decoupling capacitor required near pin |
| 5 (NC) | No connect | Internally unused; must remain unconnected |
| 6 (OUT) | Output | Capable of ±20 mA drive; supports 1.5 V to ±14.5 V swing into 20 mA load |
| 7 (VCC+) | Positive supply | Accepts up to +19 V; requires local 0.1 μF ceramic decoupling |
| 8 (NC) | No connect | Internally unused; must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Direct TL081 upgrade | Pin-compatible replacement with doubled bandwidth and improved DC specs |
| JFET input stage | Enables <175 nA input bias current and >100 MΩ input resistance for high-Z sources |
| Wide supply range | ±2.25 V to ±19 V operation supports both low-power portable and high-dynamic-range industrial rails |
| Low 1/f noise | 2.77 μVPP (0.1 Hz–10 Hz) enables stable DC-coupled measurements in digital multimeters |
| Stable unity-gain configuration | 56° phase margin with 25 pF capacitive load ensures robustness in active filter designs |
Applications
| Oscilloscopes and Digitizers | High-Speed Data Acquisition |
|---|---|
Use Scenario: Vertical amplifier stage in portable 100-MHz-class oscilloscopes requiring fast transient response and low distortion. IC Role / Device Role / Timing Role: Single-ended signal conditioning amplifier with gain ≥10 and bandwidth >10 MHz. Use Value: 32 V/μs slew rate and 0.0032% THD+N preserve waveform fidelity for sub-10 ns rise-time signals. | Use Scenario: Front-end buffer and anti-aliasing driver in 1 MSPS, 12-bit industrial DAQ modules. IC Role / Device Role / Timing Role: High-impedance input buffer driving SAR ADC sample-and-hold inputs. Use Value: Low 7 nV/√Hz input noise and 0.25 μs settling time ensure accurate digitization of fast analog events. |
| Digital Multimeter (DMM) | Electricity Meter |
Use Scenario: Precision DC gain stage and integrator in handheld 6½-digit DMMs measuring microvolt-level offsets. IC Role / Device Role / Timing Role: Low-drift, low-noise op-amp in auto-zeroed measurement path. Use Value: 6 mV max VIO and 2.77 μVPP 0.1–10 Hz noise enable stable sub-μV resolution over temperature. | Use Scenario: Current-sense amplifier and voltage scaling stage in Class 0.2 polyphase electricity meters. IC Role / Device Role / Timing Role: Isolated analog front-end conditioner interfacing shunt or CT sensors. Use Value: ±19 V supply tolerance and –40°C to +85°C operation support wide-range metrology in outdoor enclosures. |
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 |
|---|---|---|---|
| TL081CD | Lower bandwidth (4 MHz), higher VIO (15 mV max), no I-grade temp range | Limited to general-purpose audio and non-critical signal conditioning | Select when cost sensitivity outweighs speed/precision needs and ambient temperature stays <70°C |
| OPA2134PA | Higher precision (0.5 mV VIO), lower noise (8 nV/√Hz), but only ±18 V max supply | Better suited for audio line drivers and medical instrumentation requiring ultra-low distortion | Choose for premium audio or battery-powered portable instruments where supply headroom is constrained |
Compared with TL081CD and OPA2134PA, the TLE2081ID uniquely balances high speed (10.6 MHz), wide supply (±19 V), and industrial temperature rating (–40°C to +85°C) in a cost-effective SOIC-8 package-making it optimal for test equipment and energy metering where both AC performance and ruggedness are required.
Availability
TLE2081ID is available at Aetrix Electronics and suitable for oscilloscopes and digitizers, high-speed data acquisition systems, and electricity metering applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLE2081ID 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 high-reliability industrial ICs.
The TLE208x family was designed specifically for high-speed, high-voltage analog signal conditioning in test & measurement, industrial automation, and energy infrastructure-emphasizing upgrade compatibility, DC accuracy, and thermal robustness.
FAQ
What is the maximum supply voltage for the TLE2081ID?
The TLE2081ID supports a total supply voltage of up to 38 V, corresponding to ±19 V operation. This allows full utilization of its wide dynamic range in high-voltage industrial signal chains. Absolute maximum ratings prohibit exceeding ±19 V, and recommended operating conditions specify ±2.25 V to ±19 V. Operation beyond these limits risks permanent damage to the TLE2081ID.
Does the TLE2081ID have rail-to-rail output capability?
The TLE2081ID does not provide true rail-to-rail output swing. Under ±15 V supplies and 20 mA load, its output swings from –11.5 V to +11.5 V - a 23 V peak-to-peak range centered around 0 V. At lighter loads (200 μA), it achieves ±14.985 V. The TLE2081ID output stage is optimized for speed and linearity rather than full rail compliance, distinguishing it from modern CMOS RRO op-amps.
Is the TLE2081ID pin-compatible with the TL081?
Yes, the TLE2081ID is fully pin-compatible with the TL081 in SOIC-8 (D) and PDIP-8 (P) packages. Pin functions match exactly: IN– (2), IN+ (3), VCC– (4), OUT (6), VCC+ (7). Unused pins (1, 5, 8) are identical. This enables drop-in replacement in existing TL081 designs without PCB modification, delivering immediate bandwidth and precision improvements.
What is the input bias current specification for the TLE2081ID?
The TLE2081ID specifies a maximum input bias current of 175 nA at 25°C, with typical values around 15–20 nA. Over the full –40°C to +85°C operating range, the maximum remains 175 nA. This JFET-input characteristic enables high-impedance interface stability in applications like photodiode transimpedance amplifiers and high-resistance sensor bridges where leakage current would otherwise dominate error.
Can the TLE2081ID be used in unity-gain stable configurations?
Yes, the TLE2081ID is unity-gain stable with a phase margin of 56° at unity gain when driving a 25 pF capacitive load. Its internal compensation eliminates the need for external compensation networks in standard inverting/non-inverting buffers and active filters. Stability testing per Figure 6-17 in the datasheet confirms robust behavior under real-world capacitive loading conditions typical of PCB traces and ADC inputs.
TLE2081ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Excalibur™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- 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:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLE2081ID FAQ
1.How can I place an order for TLE2081ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE2081ID 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 TLE2081ID reliable?
The price and inventory of TLE2081ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE2081ID is usually 5 days.
3.What payment methods are accepted for TLE2081ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE2081ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE2081ID?
TLE2081ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE2081ID 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 TLE2081ID?
For technical support, including TLE2081ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE2081ID requirements.
6.How does Aetrix verify that TLE2081ID is sourced from the original manufacturer or authorized distributors?
All TLE2081ID 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 TLE2081ID meets industry standards.
7.What is the process for return or replacement of TLE2081ID?
All TLE2081ID units undergo pre-shipment inspection (PSI). If there is an issue with TLE2081ID, 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 TLE2081ID part is unused and in its original packaging.
Return procedure for TLE2081ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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