MCP6421T-E/OT Microchip Integrated Circuit (SOT23 (5-Pin)) In Stock
The MCP6421T-E/OT is a single-channel operational amplifier with a 90 kHz gain-bandwidth product and ultra-low 1 mV offset voltage in a compact SOT-23-5 package. It operates from a 1.8 V to 5.5 V single supply and features rail-to-rail input and output with less than 50 nA input bias current. Available from stock worldwide with standard lead times.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MCP6421T-E/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5000(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 MCP6421T-E/OT?
- Ultra-low 1 mV maximum input offset voltage enables precision signal conditioning with minimal DC error
- 90 kHz gain-bandwidth product with rail-to-rail input/output suited for low-power single-supply designs
- Extremely low 50 pA typical input bias current ideal for high-impedance sensor interfaces
What is MCP6421T-E/OT used for?
The MCP6421T-E/OT is ideal for precision signal conditioning in portable medical devices, battery-powered sensor nodes, and consumer electronics where low supply current and minimal offset error are critical. It excels as a buffer or amplifier in photodiode transimpedance circuits, thermocouple signal chains, and resistive bridge sensor interfaces operating from a single 1.8 V to 5.5 V supply rail.
What are the specifications of MCP6421T-E/OT?
| Manufacturer Package Code | SOT-23-5 |
| Factory Lead Time | 6Weeks |
| YTEOL | 13 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.00005 µA |
| Bias Current-Max (IIB) @25C | 0.00005 µA |
| Common-mode Reject Ratio-Min | 75dB |
| Common-mode Reject Ratio-Nom | 90dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 1000 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 | 0.05V/us |
| Supply Current-Max | 0.0055mA |
| 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 | 90 |
| 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 | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the MCP6421T-E/OT datasheet?
MCP6421T-E/OT Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP6421T-E/OT?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the gain-bandwidth product of the MCP6421T-E/OT and how does it affect signal fidelity?
The MCP6421T-E/OT has a gain-bandwidth product of 90 kHz. At unity gain this limits the usable bandwidth to 90 kHz, which is sufficient for audio-frequency signal processing and slow sensor data acquisition but not for high-speed applications. At a gain of 10, the -3 dB bandwidth drops to approximately 9 kHz.
How does the ultra-low input bias current of MCP6421T-E/OT benefit high-impedance sensor designs?
The MCP6421T-E/OT specifies a maximum input bias current of 50 pA (0.00005 µA). When connected to a 10 MΩ source impedance such as a pH electrode or photodiode, this bias current produces less than 0.5 mV of offset error, preserving the accuracy of the measurement without requiring compensation resistors on the non-inverting input.
When is MCP6421T-E/OT a compact alternative to dual-supply op-amps in space-constrained PCB designs?
In battery-powered wearables and IoT sensor modules where board space is limited to a few square millimeters, the 5-pin SOT-23 package of the MCP6421T-E/OT occupies under 3 mm² of PCB area while delivering rail-to-rail performance on a 1.8 V to 5.5 V single supply. This eliminates the need for a negative supply rail and reduces the regulator count compared to dual-supply op-amp solutions.
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About Microchip
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.6341 | $0.63 |
| 10+ | $0.6308 | $6.31 |
| 25+ | $0.5700 | $14.25 |
| 100+ | $0.5300 | $53.00 |
| 5000+ | $0.5000 | $2500.00 |
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