MCP3550-50E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP3550-50E/SN is a single-channel 21-bit delta-sigma ADC from Microchip with a maximum sample rate of 125 SPS and a linearity error of 0.006%. It features a simple SPI-compatible serial interface and operates from an analog input range of -0.1 V to 5.5 V. Available in stock with worldwide shipping from authorized distributors.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP3550-50E/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.7500(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 MCP3550-50E/SN?
- 21-bit delta-sigma ADC with 0.006% maximum linearity error for high-precision signal measurement
- 125 SPS output data rate via SPI-compatible 2-wire serial interface requiring minimal host MCU pins
- Wide analog input range of -0.1 V to 5.5 V with SOIC-8 package for compact PCB integration
What is MCP3550-50E/SN used for?
The MCP3550-50E/SN is used in precision industrial measurement systems such as weigh scales, pressure sensors, and thermocouple signal conditioners where high resolution and low noise are critical. Its 21-bit delta-sigma architecture and low linearity error make it suitable for scientific instruments and data acquisition modules that require accurate DC and low-frequency AC signal conversion. Designers also deploy it in battery-powered portable measurement equipment where its low-power SOIC-8 form factor helps minimize board space and current consumption.
What are the specifications of MCP3550-50E/SN?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 7Weeks |
| Analog Input Voltage-Max | 5.5V |
| Analog Input Voltage-Min | -0.1 V |
| Conversion Time-Max | 80800 µs |
| Converter Type | ADC, DELTA-SIGMA |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Linearity Error-Max (EL) | 0.006% |
| Number of Analog In Channels | 1 |
| Number of Bits | 22 |
| Number of Functions | 1 |
| Output Bit Code | 2'S COMPLEMENT BINARY |
| Output Format | SERIAL |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supplies | 2.7/5 V |
| Qualification Status | Not Qualified |
| Sample Rate | 0.0256MHz |
| Subcategory | Analog to Digital Converters |
| Supply Voltage-Nom | 2.7V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| ## MCP3550-50E/SN Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
Where can I find the MCP3550-50E/SN datasheet?
MCP3550-50E/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP3550-50E/SN?
Compatible alternatives and drop-in replacements for MCP3550-50E/SN:
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Frequently Asked Questions
What is the resolution and sample rate of MCP3550-50E/SN for precision measurement applications?
The MCP3550-50E/SN delivers 21-bit effective resolution through its delta-sigma architecture at a maximum output data rate of 125 SPS. The conversion time can extend up to 80800 µs for maximum accuracy, making it appropriate for low-frequency precision measurements such as weighing scales, pressure transducers, and industrial sensor signal conditioning where speed is secondary to accuracy.
How does the MCP3550-50E/SN connect to a microcontroller for serial data readout?
The MCP3550-50E/SN uses a 2-wire SPI-compatible serial interface with a chip-select and serial data line, requiring only 2 to 3 MCU pins for full operation. Data is read back as a 21-bit two's complement word after conversion completion, simplifying firmware integration. The SOIC-8 package footprint further eases PCB layout in space-constrained designs.
Which sensor interfaces benefit most from the MCP3550-50E/SN ADC linearity of 0.006%?
Bridge-type sensors such as strain gauges, load cells, and pressure transducers benefit most from the MCP3550-50E/SN 0.006% linearity error and 21-bit resolution, as these sensors produce small differential voltages that demand high accuracy over the -0.1 V to 5.5 V analog input range. Its low linearity error also benefits RTD and thermocouple measurement circuits in industrial temperature monitoring where a 0.1°C or better accuracy is required.
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| Qty. | Unit Price | Ext. Price |
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| 1+ | $3.5400 | $3.54 |
| 25+ | $3.1000 | $77.50 |
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| 1000+ | $2.7800 | $2780.00 |
| 5000+ | $2.7500 | $13750.00 |
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