TL081BCD Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments TL081BCD is a JFET-input operational amplifier featuring 86 dB typical common-mode rejection ratio and 3 mV maximum input offset voltage. It provides voltage-feedback architecture with frequency compensation and ultra-low bias current of 0.2 nA at 25°C. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TL081BCD Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low input bias current of 0.2 nA at 25°C, minimizing loading errors in high-impedance sensor interface circuits
- 86 dB typical CMRR and 75 dB minimum CMRR for excellent rejection of common-mode noise in differential signal paths
- Voltage-feedback architecture with internal frequency compensation enabling stable gain in wideband analog signal conditioning
Applications
The TL081BCD is well-suited for precision analog signal conditioning, integrator circuits, and instrumentation amplifier front-ends where low input bias current and low offset voltage are essential. Its JFET input stage makes it ideal for interfacing high-impedance sensors such as photodiodes and piezoelectric transducers in test, measurement, and medical instrumentation applications.
Specifications
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.007 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) | 0.002 µA |
| Input Offset Voltage-Max | 3000 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 | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Min | 8V/us |
| Slew Rate-Nom | 13V/us |
| Subcategory | Operational Amplifier |
| Supply Current-Max | 2.8mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| 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 |
| ## TL081BCD Alternates Showing results | Image |
| 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 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TL081BCD:
suggested
suggested
Frequently Asked Questions
How does the TL081BCD input bias current specification affect high-impedance sensor interface designs?
The TL081BCD has a maximum input bias current of 7 nA and a typical value of 0.2 nA at 25°C, making it suitable for interfacing high-impedance sensors like photodiodes or piezoelectric elements. In a 10 MΩ source impedance circuit, the 7 nA maximum bias current introduces a maximum offset error of only 70 mV, which is acceptable for most precision measurement applications without additional compensation.
What is the CMRR specification of TL081BCD and in which signal conditioning designs is it most critical?
The TL081BCD provides a minimum CMRR of 75 dB and a typical CMRR of 86 dB, ensuring strong rejection of common-mode interference such as 50 Hz or 60 Hz power line noise. This level of CMRR is critical in differential amplifier and instrumentation applications where the signal level is small — for example, in bridge sensor outputs of a few millivolts riding on a common-mode DC level of several volts.
When is TL081BCD a better choice than a BJT-input op-amp for precision analog circuits?
TL081BCD is preferred over BJT-input op-amps in circuits with source impedances above 1 MΩ, where its JFET input stage maintains an input bias current of 0.2 nA typical compared to microampere-level bias currents in many BJT-input devices. This 3 orders of magnitude lower bias current reduces offset voltage errors in sample-and-hold circuits, active filters with large capacitors, and transimpedance amplifier designs using photodiodes.
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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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