MCP6141-I/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP6141-I/MS is a single-channel, voltage-feedback operational amplifier with a 1.6 V minimum supply voltage, 100 kHz gain-bandwidth product, and 5 nA maximum input bias current, housed in an 8-pin MSOP package. It features rail-to-rail input and output for maximum dynamic range at low supply voltages. Available from stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP6141-I/MS Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low 5 nA maximum input bias current enabling high-impedance sensor interfacing without signal loading in precision measurement circuits
- 1.6 V minimum single-supply operation with rail-to-rail input and output, ideal for battery-powered and energy-harvesting IoT sensor front-ends
- 80 dB typical common-mode rejection ratio (CMRR) and internal frequency compensation ensuring stable, low-noise signal conditioning across the 100 kHz bandwidth
Applications
The MCP6141-I/MS is well-suited for low-power sensor signal conditioning, photodiode transimpedance amplifiers, and battery-powered instrumentation where operation from a 1.6 V to 6 V single supply is required. Its 5 nA input bias current makes it ideal for high-impedance pH, gas, and electrochemical sensor interfaces where even small bias currents would introduce measurement error. The MSOP-8 package and 100 kHz bandwidth serve compact wearable health monitors, IoT environmental nodes, and portable data loggers.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 11Weeks |
| YTEOL | 9 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.005 µA |
| Common-mode Reject Ratio-Min | 62dB |
| Common-mode Reject Ratio-Nom | 80dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 3000 µV |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | YES |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.25 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 24000V/us |
| Supply Current-Max | 0.001mA |
| Supply Voltage Limit-Max | 7V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Unity Gain BW-Nom | 100 |
| Voltage Gain-Min | 56200 |
| 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 | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How low can the MCP6141-I/MS supply voltage go, and does this make it suitable for single-cell battery-powered sensor nodes?
The MCP6141-I/MS operates from a minimum supply voltage of 1.6 V, which is below the end-of-discharge voltage of most AAA and AA alkaline batteries (typically 0.9 V per cell, so 1.8 V for two cells). At 1.6 V single supply with rail-to-rail output, the device squeezes maximum dynamic range from the available voltage headroom, making it appropriate for two-cell alkaline or harvested-energy powered sensor nodes.
What input bias current does MCP6141-I/MS specify, and which sensor types benefit most from this characteristic?
The MCP6141-I/MS specifies a maximum input bias current of 5 nA (0.005 µA). This extremely low bias current is critical for interfacing with high-impedance sensors such as pH electrodes (source impedance up to 100 MΩ), photodiodes in transimpedance configurations, and gas sensors, where even a 10 nA bias current across a 10 MΩ source impedance would introduce a 100 mV offset error.
What is the gain-bandwidth product of MCP6141-I/MS, and for which signal frequency ranges is it an appropriate amplifier choice?
The MCP6141-I/MS has a gain-bandwidth product of 100 kHz. This means at a closed-loop gain of 10, the usable signal bandwidth is approximately 10 kHz, suitable for audio-frequency sensor signals, slow industrial process variables, and biomedical signals such as ECG (0.05 Hz to 150 Hz) or EEG (0.1 Hz to 100 Hz) that require amplification without high-frequency switching noise.
When is MCP6141-I/MS a preferred low-power alternative to general-purpose op-amps like the LM358 in portable designs?
The MCP6141-I/MS is preferred over LM358 in portable designs when supply voltage is below 3 V, because the LM358 requires a minimum of 3 V while MCP6141 operates down to 1.6 V. Additionally, MCP6141 provides true rail-to-rail output swing, versus LM358 which cannot swing within 1.5 V of the positive rail, giving up to 1.5 V more usable output range at 3.3 V supply in battery-constrained applications.
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