MCP651-E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP651 is a single 50 MHz gain-bandwidth operational amplifier with auto-zero offset calibration, 84 dB CMRR, and 5 nA maximum input bias current in an SOIC-8 package. Ideal for precision wideband signal conditioning.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP651-E/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.5200(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 MCP651-E/SN?
- 50 MHz gain-bandwidth product with auto-calibration continuously nulls offset voltage drift, removing the need for manual trim pots
- Ultra-low input bias current of 5 nA (max 0.005 µA) supports high-impedance photodiode and capacitive sensor interfaces
- Rail-to-rail input/output operation from 2.4 V to 5.5 V single supply enables direct ADC interfacing in low-voltage systems
What is MCP651-E/SN used for?
The MCP651 is used in active anti-aliasing filters ahead of high-speed ADCs, precision transimpedance amplifiers for photodetector readouts, and wideband sensor signal conditioning where the 50 MHz GBW allows Butterworth filter cutoffs up to several MHz. Its auto-zero feature makes it attractive for DC-coupled instrumentation that must hold offset below 10 µV over a -40°C to 125°C temperature range. Video signal buffers and servo-control loop compensators also benefit from its combination of high bandwidth and low bias current.
What are the specifications of MCP651-E/SN?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Reach Compliance Code | Compliant |
| Factory Lead Time | 6Weeks |
| YTEOL | 7 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.005 µA |
| Common-mode Reject Ratio-Min | 68dB |
| Common-mode Reject Ratio-Nom | 84dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 200 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Low-Bias | YES |
| Low-Offset | YES |
| Micropower | NO |
| 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 |
| Screening Level | TS 16949 |
| Slew Rate-Nom | 30V/us |
| Supply Current-Max | 9mA |
| Supply Voltage Limit-Max | 6.5V |
| Supply Voltage-Nom (Vsup) | 2.5V |
| 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 | 50000 |
| Voltage Gain-Min | 25118 |
| 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 | Mainland China, Thailand |
Where can I find the MCP651-E/SN datasheet?
MCP651-E/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP651-E/SN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What gain-bandwidth product does the MCP651 provide, and up to what filter cutoff frequency can it support?
The MCP651 specifies a 50 MHz gain-bandwidth product. At a closed-loop gain of 10 V/V, the resulting -3 dB bandwidth is approximately 5 MHz, making it suitable for active low-pass filters protecting 8-bit to 12-bit ADCs sampling at up to 10 Msps.
How does the auto-zero calibration in the MCP651 benefit precision DC measurement systems?
The MCP651's auto-zero circuit continuously corrects input offset voltage to below 10 µV over the -40°C to 125°C operating range without external trim components. This eliminates offset drift of 2–5 µV/°C seen in standard op-amps, keeping measurement error below 1 LSB on a 16-bit ADC with a 5 V reference.
For a portable industrial sensor transmitter, what supply voltage range does the MCP651 support?
The MCP651 operates from 2.4 V to 5.5 V single supply, covering 3 V lithium coin-cell battery applications up to 5 V loop-powered 4–20 mA transmitters. Its quiescent supply current is typically 1.3 mA, which is acceptable for always-on industrial field instruments.
When would a design team select MCP651 over MCP6023 for a sensor amplifier front-end?
Choose MCP651 when the application requires a 50 MHz GBW for wideband signal conditioning or active filters above 1 MHz. The MCP6023 is a general-purpose op-amp with lower bandwidth suitable for audio-rate signals; the MCP651 adds auto-zero calibration and 10× higher bandwidth at similar 5 nA bias current and SOIC-8 package cost.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.6994 | $1.70 |
| 1000+ | $1.6900 | $1690.00 |
| 5000+ | $1.5400 | $7700.00 |
| 7500+ | $1.5300 | $11475.00 |
| 10000+ | $1.5200 | $15200.00 |
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