TL081IDRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TL081IDRG4 is a JFET-input general-purpose operational amplifier from Texas Instruments with 3MHz gain-bandwidth product and ultra-low 0.2nA bias current. It operates on split supplies up to ±18V and delivers 86dB CMRR in the industrial-grade 8-pin SOIC package. Available from stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TL081IDRG4 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 TL081IDRG4?
- JFET input stage provides ultra-low input bias current of 0.2nA, ideal for high-impedance sensor interfaces and sample-and-hold circuits
- 3MHz gain-bandwidth product with 13V/µs slew rate supports audio signal processing and active filter designs up to several hundred kilohertz
- Wide ±18V supply range and 86dB CMRR enable precision instrumentation in industrial data acquisition systems with ±15V rails
- Industrial temperature grade (-40°C to 85°C) ensures reliable operation in harsh factory automation and test equipment environments
- 8-pin SOIC package provides a compact, industry-standard footprint compatible with dual-channel layout on standard FR4 PCBs
What is TL081IDRG4 used for?
The TL081IDRG4 suits precision analog front-ends in industrial measurement instruments, photodiode transimpedance amplifiers, and audio preamplifier stages where the high-impedance JFET inputs minimize loading on sensitive signal sources. It is also used in active low-pass and band-pass filters operating in the 10kHz to 100kHz range, benefiting from the 3MHz GBW and low noise. Its wide supply voltage range makes it a reliable general-purpose op-amp for legacy ±15V instrumentation designs requiring industrial-grade reliability.
What are the specifications of TL081IDRG4?
| 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 TL081IDRG4 datasheet?
TL081IDRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TL081IDRG4?
Compatible alternatives and drop-in replacements for TL081IDRG4:
Frequently Asked Questions
How does the TL081IDRG4 JFET input benefit a photodiode transimpedance amplifier design?
The JFET input stage limits input bias current to just 0.2nA, which generates less than 0.2mV of error across a 1MΩ transimpedance resistor. This ultra-low leakage preserves measurement accuracy for weak photodiode currents in the picoampere to nanoampere range, making the TL081IDRG4 significantly better than BJT-input op-amps that draw tens of nanoamps.
What slew rate does the TL081IDRG4 provide, and which signal frequencies does that support?
The TL081IDRG4 delivers a 13V/µs slew rate, which allows it to reproduce full-swing sine waves up to approximately 200kHz without slew-rate distortion at ±10V output. Combined with its 3MHz gain-bandwidth product, this supports active filter and audio amplifier designs well into the upper audio band.
Can TL081IDRG4 operate from a single 5V supply rail in battery-powered sensor nodes?
The TL081IDRG4 is primarily designed for split supplies and is rated for supply voltages from ±2V to ±18V (4V to 36V total). While it can operate from a single 5V rail, the output swing is limited and does not include rail-to-rail capability, so single-supply designs requiring output near 0V or 5V would be better served by a rail-to-rail op-amp such as the OPA314 in the same 8-pin SOIC package.
How does the industrial-grade TL081IDRG4 differ from the commercial TL081CDR in terms of temperature rating?
The TL081IDRG4 is specified over a -40°C to 85°C industrial temperature range, while the commercial TL081CDR covers only 0°C to 70°C. The extended low-end rating of -40°C is required for outdoor enclosures, automotive auxiliary electronics, and industrial control panels that may experience cold-start conditions below freezing.
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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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