MCP6043-I/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP6043-I/SN is a single-channel 1.6 V supply voltage-feedback op-amp with 14 kHz gain-bandwidth product, 0.0001 µA maximum bias current, and chip select shutdown in a RoHS-compliant 8-pin SOIC package. From $0.80 in stock worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP6043-I/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5540(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP6043-I/SN?
- Ultra-low supply voltage operation down to 1.6 V makes the MCP6043 suitable for single-cell alkaline or Li-ion coin-cell powered sensor applications with minimal headroom
- Extremely low input bias current of 0.0001 µA (100 pA) maximum enables accurate amplification of high-impedance sensor signals such as pH electrodes and photodiodes without loading errors
- Chip select shutdown pin reduces quiescent current to near-zero in standby mode, extending battery life in duty-cycled IoT and wearable measurement systems
What is MCP6043-I/SN used for?
The MCP6043-I/SN is designed for ultra-low-power sensor interface circuits in battery-operated systems such as medical wearables, environmental monitors, and portable instrumentation. Its 1.6 V minimum supply voltage and 100 pA maximum bias current make it ideal for amplifying signals from high-impedance sensors including pH probes, electrochemical cells, and photodiodes. The chip select feature allows the amplifier to be powered down between measurement cycles, reducing average current consumption to extend battery life in duty-cycled applications.
What are the specifications of MCP6043-I/SN?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.0001 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 | R-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 | 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 |
| Slew Rate-Nom | 0.003V/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 | 1.27mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 14 |
| 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 |
Where can I find the MCP6043-I/SN datasheet?
MCP6043-I/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP6043-I/SN?
Compatible alternatives and drop-in replacements for MCP6043-I/SN:
Microchip Technology Inc SINGLE 1.6V 10 KHZ OP W/CS, E TEMP
Frequently Asked Questions
How does the MCP6043-I/SN's 100 pA maximum bias current benefit a pH electrode measurement circuit?
A pH glass electrode presents a source impedance of 100 MΩ to 1 GΩ, and a 100 pA bias current flowing through this impedance creates an input error voltage of up to 100 mV on a 1 GΩ source, or only 10 mV on a 100 MΩ source. This is far better than standard CMOS op-amps with 1 nA to 10 nA bias currents that would produce 1 V to 10 V errors on the same high-impedance source, making the MCP6043 suitable for direct pH electrode buffer stages.
What signal frequency range is practical with the MCP6043-I/SN's 14 kHz gain-bandwidth product?
With a 14 kHz gain-bandwidth product, the MCP6043-I/SN can provide a closed-loop bandwidth of 14 kHz at unity gain (0 dB), approximately 1.4 kHz at a closed-loop gain of 10, or 140 Hz at a gain of 100. This frequency range covers slow sensor signals, DC measurements, and audio-frequency signals below 1 kHz, making it appropriate for thermocouple amplifiers, strain gauge conditioners, and low-frequency signal acquisition but not for radio frequency or high-speed applications.
How does the chip select shutdown feature of the MCP6043-I/SN reduce power consumption in a duty-cycled IoT design?
The chip select input on the MCP6043-I/SN places the op-amp into a low-power shutdown state where quiescent current drops to near zero, compared to the active supply current which is typically in the 0.9 µA range at 1.6 V. In a sensor node that activates measurements for 10 ms every 10 seconds, the shutdown feature reduces average current from 0.9 µA continuous to approximately 0.9 nA average, extending a 200 mAh coin cell battery life from under 3 years to potentially decades.
When would a designer choose the MCP6043-I/SN over a rail-to-rail output op-amp in a 1.8 V single-supply portable design?
The MCP6043-I/SN is preferred when the priority is minimizing input bias current below 100 pA and achieving operation at supply voltages as low as 1.6 V, rather than maximizing output voltage swing. A rail-to-rail output op-amp operating from 1.8 V can swing within 50 mV of the rails, providing more output dynamic range, but typically has higher bias currents of 1 nA to 10 nA that compromise accuracy on high-impedance sensor inputs. The MCP6043 is the better choice for precision low-current sensor front-ends.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.8200 | $0.82 |
| 25+ | $0.6900 | $17.25 |
| 100+ | $0.6200 | $62.00 |
| 5000+ | $0.6000 | $3000.00 |
| 7500+ | $0.5560 | $4170.00 |
| 10000+ | $0.5540 | $5540.00 |
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