MCP6281T-E/OT Microchip Integrated Circuit (SOT23 (5-Pin)) In Stock
Microchip MCP6281T-E/OT is a single rail-to-rail operational amplifier with voltage-feedback architecture in a 5-pin SOT-23 package. Features 85 dB typical common-mode rejection ratio, 5 nA maximum input bias current, and internal frequency compensation for stable closed-loop designs. Available from stock worldwide in tape-and-reel format for automated assembly.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MCP6281T-E/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4480(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP6281T-E/OT?
- Single rail-to-rail op-amp with voltage-feedback architecture
- 85 dB typical common-mode rejection ratio (CMRR)
- Ultralow 5 nA maximum input bias current
- Internal frequency compensation for unconditional stability
- Compact 5-pin SOT-23 package for space-constrained applications
- RoHS-compliant Pb-free construction
What is MCP6281T-E/OT used for?
The MCP6281T-E/OT is well-suited for single-supply sensor signal conditioning, battery-powered measurement circuits, and low-power amplifier stages where rail-to-rail output swing is needed. Its 5 nA input bias current makes it ideal for high-impedance sensor interfaces such as pH electrodes, photodiodes, and strain gauges. The compact SOT-23 footprint allows integration into portable medical devices, wearables, and handheld test instruments.
What are the specifications of MCP6281T-E/OT?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-5 |
| Factory Lead Time | 6Weeks |
| YTEOL | 9 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.005 µA |
| Common-mode Reject Ratio-Min | 65dB |
| Common-mode Reject Ratio-Nom | 85dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 5000 µV |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | YES |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE |
| Packing Method | TAPE AND REEL |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 2.5V/us |
| Supply Current-Max | 0.57mA |
| Supply Voltage Limit-Max | 7V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 5000 |
| Voltage Gain-Min | 31620 |
| Wideband | NO |
| ## MCP6281T-E/OT Alternates Showing results | Image |
| Package | SOT23 (5-Pin) |
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 | Malaysia, Thailand |
Where can I find the MCP6281T-E/OT datasheet?
MCP6281T-E/OT Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP6281T-E/OT?
Compatible alternatives and drop-in replacements for MCP6281T-E/OT:
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Frequently Asked Questions
How does MCP6281T-E/OT handle common-mode signals in single-supply sensor conditioning circuits?
The MCP6281T-E/OT provides a typical common-mode rejection ratio of 85 dB with a minimum of 65 dB, effectively suppressing common-mode interference from power supply noise and ground offsets. Operating on a single supply, its rail-to-rail input and output range allows signal conditioning from 0 V to the supply rail, making it ideal for 3.3 V and 5 V sensor systems.
For a photodiode transimpedance amplifier, why is the 5 nA input bias current of MCP6281T-E/OT significant?
With a maximum input bias current of only 5 nA (0.005 µA), the MCP6281T-E/OT introduces negligible offset voltage error in high-impedance transimpedance circuits. For a 1 MΩ feedback resistor, the 5 nA bias current contributes only 5 mV of input-referred offset, ensuring accurate photodiode current measurement across a wide dynamic range in optical sensing applications.
What supply voltage range does MCP6281T-E/OT support and which battery chemistries does it accommodate?
The MCP6281T-E/OT operates from a single supply between 1.8 V and 6 V, covering single-cell alkaline at 1.5 V recharged to 1.8 V, two AAA cells in series, 3 V coin cells, and single-cell Li-ion at 3.7 V to 4.2 V. This wide range eliminates the need for level shifting in battery-powered designs spanning multiple product generations.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.5730 | $0.57 |
| 25+ | $0.5300 | $13.25 |
| 100+ | $0.4700 | $47.00 |
| 500+ | $0.4650 | $232.50 |
| 1000+ | $0.4480 | $448.00 |
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