MCP6281-E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP6281-E/SN is a single-channel voltage-feedback operational amplifier from Microchip with a 5 MHz gain-bandwidth product and rail-to-rail output swing. It offers a maximum input bias current of 5 nA, a minimum CMRR of 65 dB, and fits in an 8-pin SOIC package. Available in stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP6281-E/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1700(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 MCP6281-E/SN?
- 5 MHz gain-bandwidth product with rail-to-rail output enables accurate signal amplification across the full supply voltage range
- Ultra-low input bias current of 5 nA maximum (0.005 µA) suits high-impedance sensor interfaces and transimpedance amplifier designs
- 85 dB typical CMRR and internal frequency compensation simplify filtering and instrumentation circuit design
What is MCP6281-E/SN used for?
The MCP6281-E/SN is ideal for single-supply sensor signal conditioning, active filter stages, and transimpedance amplifier circuits in portable medical devices and industrial sensors. Its 5 MHz bandwidth and 5 nA bias current make it a strong choice for photodiode amplifier front-ends, pH meter conditioning circuits, and battery-powered data loggers where precision and low power consumption are equally important.
What are the specifications of MCP6281-E/SN?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| 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-G8 |
| JESD-609 Code | e3 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | YES |
| 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-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 | 1.27mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 5000 |
| Voltage Gain-Min | 31620 |
| 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 |
| Country of Origin | Thailand |
Where can I find the MCP6281-E/SN datasheet?
MCP6281-E/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP6281-E/SN?
Compatible alternatives and drop-in replacements for MCP6281-E/SN:
Frequently Asked Questions
What gain-bandwidth product does MCP6281-E/SN offer, and how does it affect closed-loop bandwidth at a gain of 10?
The MCP6281-E/SN has a 5 MHz gain-bandwidth product. At a non-inverting closed-loop gain of 10, the usable small-signal bandwidth is approximately 500 kHz, which is more than adequate for audio processing, industrial 4-20 mA loop signal conditioning, and most sensor output amplification tasks running at signal frequencies below 100 kHz.
How does the 5 nA maximum input bias current of MCP6281-E/SN benefit high-impedance sensor circuits?
With a maximum input bias current of only 5 nA (0.005 µA), the MCP6281-E/SN introduces negligible voltage error across source impedances up to several megaohms. For example, at a 1 MΩ source impedance the worst-case offset error is just 5 mV, making this op amp well suited for pH electrode amplifiers, photodiode transimpedance stages, and capacitive humidity sensor interfaces.
For a compact single-supply design, how does MCP6281-E/SN in SOIC-8 compare to MCP6271 in the same package?
The MCP6281-E/SN is the single-channel variant while MCP6271 is a dual-channel version sharing the same 5 MHz bandwidth, 65 dB minimum CMRR, and SOIC-8 footprint. Choose MCP6281-E/SN when only 1 amplifier channel is needed to keep the 8-pin BOM and power consumption minimal; upgrade to MCP6271 when 2 independent channels are required without increasing the board area beyond 8 pins.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.1700 | $0.17 |
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