TL081IDRE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments TL081IDRE4 is a JFET-input single operational amplifier with a 3 MHz gain-bandwidth product and 86 dB typical CMRR in an 8-pin SOIC package. Its ultra-low bias current of 0.2 nA makes it ideal for high-impedance signal conditioning. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TL081IDRE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TL081IDRE4?
- JFET input stage delivering ultra-low bias current of 0.2 nA typical at 25°C for high-impedance sensor interfaces
- 3 MHz gain-bandwidth product supporting audio and precision signal conditioning applications
- 86 dB typical common-mode rejection ratio ensuring accurate differential signal amplification
- Voltage-feedback architecture with frequency compensation for stable closed-loop operation
- 8-pin SOIC package enabling compact SMT layout in space-constrained analog front-end designs
What is TL081IDRE4 used for?
The TL081IDRE4 is widely used in precision analog front-ends for photodiode transimpedance amplifiers, piezoelectric sensor signal conditioners, and integrators where JFET input minimizes leakage current errors. Its 3 MHz bandwidth and low offset make it suitable for audio preamplifier stages and active filter designs in measurement instruments. The 8-pin SOIC package integrates cleanly onto mixed-signal PCBs alongside ADCs and microcontrollers.
What are the specifications of TL081IDRE4?
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.02 µA |
| Bias Current-Max (IIB) @25C | 0.0002 µA |
| Common-mode Reject Ratio-Min | 75dB |
| Common-mode Reject Ratio-Nom | 86dB |
| Frequency Compensation | YES |
| Input Offset Current-Max (IIO) | 0.01 µA |
| Input Offset Voltage-Max | 9000 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -18 V |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power | YES |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Min | 8V/us |
| Slew Rate-Nom | 13V/us |
| Supply Current-Max | 2.8mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 3000 |
| Voltage Gain-Min | 25000 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the TL081IDRE4 datasheet?
TL081IDRE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TL081IDRE4?
Compatible alternatives and drop-in replacements for TL081IDRE4:
Frequently Asked Questions
What input bias current does the TL081IDRE4 exhibit, and why does this matter for sensor interfaces?
The TL081IDRE4 has a maximum bias current (IIB) of 20 nA and a typical value of 0.2 nA at 25°C due to its JFET input stage. In high-impedance sensor circuits such as photodiode amplifiers or pH electrode buffers, this near-zero bias current prevents voltage errors caused by current flowing through large source resistances, improving measurement accuracy.
What is the gain-bandwidth product of the TL081IDRE4, and how does this constrain amplifier designs?
The TL081IDRE4 has a gain-bandwidth product (GBW) of 3 MHz. This means that at a closed-loop gain of 10, the usable signal bandwidth is limited to approximately 300 kHz. Designers must account for this tradeoff when building audio processing stages, active filters, or instrumentation front-ends where both gain and bandwidth targets must be satisfied simultaneously.
How does the TL081IDRE4 compare to bipolar-input op-amps for integrator circuit applications?
Unlike bipolar-input op-amps with bias currents in the hundreds of nanoampere range, the TL081IDRE4's JFET input keeps bias current below 0.2 nA typical, dramatically reducing integrator drift over time. For a 1 MΩ feedback resistor, a 0.2 nA bias current produces only 0.2 mV of offset voltage error, making the TL081IDRE4 far superior for long time-constant integration circuits.
What is the common-mode rejection ratio of the TL081IDRE4 and when does CMRR specification matter?
The TL081IDRE4 achieves a typical CMRR of 86 dB and a minimum guaranteed CMRR of 75 dB. High CMRR is critical in differential amplifier configurations used for industrial sensor signal conditioning, where common-mode noise from 50 Hz or 60 Hz power lines must be rejected while accurately amplifying small differential signals from bridge transducers or thermocouples.
For a compact single-supply audio preamp design, what advantages does the TL081IDRE4 offer over a DIP-packaged equivalent?
The TL081IDRE4 comes in an 8-pin SOIC package with a 1.27 mm pin pitch, occupying roughly 60% less PCB area than an equivalent 8-pin DIP device. This size reduction is valuable in portable audio equipment, hearing aids, and compact instrument amplifiers where board space is at a premium, while still delivering the 3 MHz bandwidth needed for audio-frequency signal chains.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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