MCP6231T-E/OT Microchip Integrated Circuit (SOT23 (5-Pin)) In Stock
The MCP6231T-E/OT is a single general-purpose rail-to-rail input/output operational amplifier from Microchip, operating on supply voltages up to 6 V. It features a voltage-feedback architecture with a maximum input bias current of 1.1 nA and a common-mode rejection ratio of 75 dB typical, housed in a compact 5-pin SOT-23 package for space-constrained designs.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MCP6231T-E/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2480(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 MCP6231T-E/OT?
- Single op-amp with rail-to-rail input and output swing up to 6 V supply
- Ultra-low input bias current maximum 1.1 nA for high-impedance sensor interfaces
- 75 dB typical common-mode rejection ratio (CMRR) for precision signal conditioning
- Voltage-feedback architecture with internal frequency compensation
- 5-pin SOT-23 package for minimal PCB footprint
- RoHS-compliant lead-free construction with 7-week standard lead time
What is MCP6231T-E/OT used for?
The MCP6231T-E/OT is commonly used in portable sensor signal conditioning circuits, such as current sense amplifiers and transducer interfaces, where a single-supply rail-to-rail op-amp simplifies design at voltages from 1.8 V to 6 V. Battery-powered IoT nodes and wearable medical devices benefit from its low bias current and compact SOT-23 footprint, enabling accurate analog front-ends without significant power overhead. It also serves as a buffer or active filter stage in low-frequency data acquisition systems.
What are the specifications of MCP6231T-E/OT?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-5 |
| Factory Lead Time | 7Weeks |
| YTEOL | 8 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.0011 µA |
| Common-mode Reject Ratio-Min | 61dB |
| Common-mode Reject Ratio-Nom | 75dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 7000 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 | 0.15V/us |
| Supply Current-Max | 0.03mA |
| 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 | 300 |
| Voltage Gain-Min | 31620 |
| Wideband | NO |
| 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 MCP6231T-E/OT datasheet?
MCP6231T-E/OT Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP6231T-E/OT?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supply voltage range does the MCP6231T-E/OT support and can it run from a single 3.3 V rail?
The MCP6231T-E/OT operates from a single supply of 1.8 V up to 6 V, so a 3.3 V single-supply rail is well within its rated range. Its rail-to-rail input and output capability ensures the output can swing within millivolts of both the positive and negative supply rails, maximizing dynamic range in low-voltage signal processing stages.
How does the 1.1 nA maximum input bias current affect photodiode or high-impedance sensor interface designs?
With a maximum input bias current of 1.1 nA (0.0011 µA), the MCP6231T-E/OT introduces negligible voltage error even when connected to source impedances in the megohm range. For a 10 MΩ photodiode or sensor source, the worst-case offset error due to bias current is only 11 mV, making it suitable for precision transimpedance amplifier and pH electrode buffer applications.
In what scenarios would a designer choose MCP6231T-E/OT over a dual op-amp package for a wearable health monitor?
A single op-amp in a 5-pin SOT-23 package occupies roughly 8 mm² of PCB area, making MCP6231T-E/OT the right choice when only one amplification stage is needed and board space is critical. In a wearable ECG or SpO2 front-end where two independent gain stages require isolation, a dual op-amp in an 8-pin SOIC could save one package, but risks crosstalk at the -40 dB channel-to-channel isolation level.
What is the procurement lead time for MCP6231T-E/OT and how should engineers plan for high-volume consumer device builds?
Microchip quotes a 7-week standard factory lead time for the MCP6231T-E/OT. Consumer device programs targeting production runs above 50,000 units per quarter should place rolling blanket purchase orders with franchised distributors at least 3 months ahead of build dates, as general-purpose op-amp demand can spike during peak electronics manufacturing seasons.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.2480 | $0.25 |
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