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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
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.
Related Guides
How to Choose a Panasonic FT SMD Aluminum Electrolytic Capacitor for 35 V Control Rails
Selection guide for EEEFT1V101AP and related Panasonic FT/FK SMD aluminum electrolytic capacitors on 35 V and lower control rails.
Jul 8, 2026
EEEFK1E470P Design Guide for 24 V Control-Board Hold-Up
Design EEEFK1E470P into 12 V and 24 V control boards with correct voltage derating, ripple checks, layout, and sourcing alternatives.
Jul 8, 2026
EEEFK1E470P Selection Guide for 47 uF SMD Aluminum Electrolytic Capacitors
Selection guidance for EEEFK1E470P and nearby Panasonic FK or FT SMD aluminum electrolytic capacitors for power-rail bulk decoupling.
Jul 7, 2026
EEEFT1V101AP Design Guide for SMD Aluminum Electrolytic Bulk Decoupling
Design guidance for using EEEFT1V101AP as an SMD aluminum electrolytic bulk capacitor in power-rail decoupling and hold-up networks.
Jul 7, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.2480 | $0.25 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”