MCP6491T-E/OT Microchip Undefined or Miscellaneous (SOT23 (5-Pin)) In Stock
The MCP6491T-E/OT is a single rail-to-rail input and output operational amplifier in a compact SOT-23-5 package, offering 88 dB common-mode rejection ratio and maximum input offset voltage of 1500 µV. It features a voltage-feedback architecture and is optimized for low-power, space-constrained applications. Available with worldwide shipping from authorized distributors.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MCP6491T-E/OT Datasheet PDF
- Category
- Undefined or Miscellaneous
- Price
- From $0.3859(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 MCP6491T-E/OT?
- Rail-to-rail input and output swing maximizes dynamic range in low-voltage single-supply systems down to standard logic rails
- 88 dB common-mode rejection ratio with maximum input offset voltage of 1500 µV for accurate signal conditioning in compact circuits
- SOT-23-5 package with voltage-feedback architecture enabling space-efficient PCB designs in portable consumer and industrial equipment
What is MCP6491T-E/OT used for?
The MCP6491T-E/OT is well suited for battery-operated portable devices, single-supply sensor signal conditioning, and low-power instrumentation front-ends where rail-to-rail output is needed. Its 88 dB CMRR and compact SOT-23-5 footprint make it a practical choice for audio preamplifiers, transducer interfaces, and analog signal buffering in IoT and wearable electronics.
What are the specifications of MCP6491T-E/OT?
| Manufacturer Package Code | SOT-23-5 |
| Factory Lead Time | 6Weeks |
| YTEOL | 14 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.00035 µA |
| Common-mode Reject Ratio-Min | 70dB |
| Common-mode Reject Ratio-Nom | 88dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 1500 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 |
| Screening Level | TS 16949 |
| Slew Rate-Nom | 6V/us |
| Supply Current-Max | 0.8mA |
| Supply Voltage Limit-Max | 6.5V |
| Supply Voltage-Nom (Vsup) | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Unity Gain BW-Nom | 7500 |
| Voltage Gain-Min | 56200 |
| 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 | Thailand |
Where can I find the MCP6491T-E/OT datasheet?
MCP6491T-E/OT Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP6491T-E/OT?
Compatible alternatives and drop-in replacements for MCP6491T-E/OT:
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Frequently Asked Questions
How does the MCP6491T-E/OT's rail-to-rail output benefit single-supply sensor circuits?
The MCP6491T-E/OT's rail-to-rail output stage swings within millivolts of both supply rails, maximizing the usable output dynamic range in 3.3 V or 5 V single-supply designs; a standard op-amp limited to 1 V to 2 V from each rail would sacrifice 30% to 60% of dynamic range in low-voltage sensor conditioning applications.
What is the maximum input offset voltage of the MCP6491T-E/OT and when does it matter in precision designs?
The MCP6491T-E/OT has a maximum input offset voltage of 1500 µV, which introduces a fixed 1.5 mV output error at unity gain; for precision 12-bit ADC front-ends this may require offset trimming, but for general-purpose signal buffering, audio conditioning, and filtering applications the 1500 µV specification is acceptable.
Which SOT-23-5 package dimensions apply to the MCP6491T-E/OT and how do they compare to SOIC-8 alternatives?
The MCP6491T-E/OT's SOT-23-5 package measures approximately 2.9 mm x 1.6 mm, versus a standard SOIC-8 at 5.0 mm x 4.0 mm, saving roughly 75% of PCB footprint area; this size advantage is critical in wearables, hearing aid analog stages, and multi-channel IoT nodes where board space is budgeted in square millimeters.
How does the 88 dB common-mode rejection ratio of the MCP6491T-E/OT affect differential measurement accuracy?
An 88 dB CMRR means the MCP6491T-E/OT attenuates common-mode interference such as 50 Hz / 60 Hz mains noise by a factor of approximately 79,000, keeping measurement error below 1 µV for every 79 mV of common-mode noise, sufficient for instrumentation-grade differential sensor readouts in industrial and medical monitoring systems.
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| 10+ | $0.4415 | $4.42 |
| 25+ | $0.3859 | $9.65 |
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