MCP6043-E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP6043-E/SN is a single-channel general-purpose rail-to-rail input/output operational amplifier rated to 6 V supply, featuring 80 dB typical CMRR and 0.005 µA max bias current in an 8-pin SOIC package. Its voltage-feedback architecture with internal frequency compensation suits precision low-power signal conditioning. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP6043-E/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5540(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Rail-to-rail input and output (RRIO) swings on a 6 V supply, maximizing dynamic range in single-supply signal-chain designs
- Ultra-low 0.005 µA maximum input bias current minimizing error in high-impedance sensor interfaces such as pH probes and photodiodes
- 80 dB typical CMRR (62 dB minimum) rejecting common-mode noise in differential measurement bridges and instrumentation front-ends
- Internal frequency compensation in a standard 8-pin SOIC package simplifying PCB layout for low-frequency precision amplifier stages
Applications
The MCP6043-E/SN is suited for battery-powered sensor nodes, medical diagnostic front-ends, and industrial process controllers requiring low-offset amplification from high-impedance sources such as thermocouples, strain gauges, and photodiodes. Its rail-to-rail output on a single 6 V or dual ±3 V supply allows the amplified signal to span the full ADC input range without headroom loss. Designers integrate it in electrochemical sensor interfaces, portable data loggers, and analog filter stages where 0.005 µA bias current prevents significant measurement error across MΩ-range source impedances.
Specifications
| 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) | 0.005 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 | 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 | AUTOMOTIVE |
| 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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP6043-E/SN:
Frequently Asked Questions
How does MCP6043-E/SN's 0.005 µA maximum bias current affect measurement accuracy with a 10 MΩ source impedance?
With a maximum input bias current of 0.005 µA (5 nA) flowing through a 10 MΩ source impedance, the resulting offset voltage error is only 50 mV at worst case—well within the range that a downstream 16-bit ADC can accommodate without saturation on a 3.3 V reference. For even higher-impedance sources such as 100 MΩ pH electrodes, the 5 nA bias produces only 500 mV error, which can be nulled by a simple offset trim resistor in the feedback network.
For a single-supply 3.3 V system, how does MCP6043-E/SN's rail-to-rail output benefit ADC interfacing?
On a 3.3 V single supply, the rail-to-rail output of MCP6043-E/SN swings from approximately 10 mV to 3.29 V, preserving over 99% of the ADC's full-scale input range for a 12-bit or 16-bit converter. Conventional op-amps with 200 mV to 500 mV output headroom losses would waste 6–15% of the ADC range, degrading effective resolution by up to 0.5 bits. The RRIO topology eliminates this loss in pressure sensor signal conditioning chains and temperature measurement bridges running from 3.3 V rails.
In a differential bridge amplifier design, how much common-mode noise does MCP6043-E/SN's 62 dB minimum CMRR reject?
With a minimum CMRR of 62 dB, the MCP6043-E/SN attenuates common-mode interference—such as 50 Hz or 60 Hz mains noise coupled onto strain gauge bridge leads—by a factor of approximately 1260:1 at DC and low frequencies. A 100 mV common-mode noise spike on the input appears as only about 80 µV at the output, which is below the 1 LSB threshold of a 12-bit ADC referenced to 3.3 V (roughly 800 µV per LSB). The 80 dB typical CMRR provides even better rejection in most production units.
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| 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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