MCP3551-E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP3551-E/SN is a 22-bit single-channel delta-sigma ADC from Microchip Technology with 15 samples per second output rate and built-in 50/60 Hz rejection in an 8-pin SOIC package. It accepts differential analog inputs up to ±2.5 V and provides high resolution for precision measurement applications. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP3551-E/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.8184(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 MCP3551-E/SN?
- 22-bit delta-sigma ADC resolution enabling sub-microvolt measurement accuracy for precision sensor readout
- Built-in 50/60 Hz rejection filter eliminates power-line interference without external filtering components
- Single-channel ±2.5 V differential input with SPI-compatible interface in a compact 8-pin SOIC package
What is MCP3551-E/SN used for?
The MCP3551-E/SN is designed for precision measurement applications including weigh scales, industrial pressure sensors, and thermocouple digitizers where 22-bit resolution at 15 samples per second is sufficient. Its integrated 50/60 Hz rejection simplifies designs in electrically noisy industrial environments, removing the need for external notch filters. The small 8-pin SOIC footprint allows it to be placed close to the sensor in data acquisition modules and portable instruments.
What are the specifications of MCP3551-E/SN?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 9 |
| Analog Input Voltage-Max | 2.5V |
| Analog Input Voltage-Min | -2.5 V |
| Conversion Time-Max | 73457.3 µs |
| Converter Type | ADC, DELTA-SIGMA |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Linearity Error-Max (EL) | 0.0006% |
| 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,.23 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Sample Rate | 0.02816MHz |
| Screening Level | TS 16949 |
| Supply Current-Max | 0.17mA |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Mainland China, Thailand |
Where can I find the MCP3551-E/SN datasheet?
MCP3551-E/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP3551-E/SN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What resolution and sampling rate does the MCP3551-E/SN provide, and which measurement applications benefit most from these specs?
The MCP3551-E/SN delivers 22-bit effective resolution at a maximum output data rate of 15 samples per second (maximum conversion time approximately 73,457 µs). This combination is ideal for weigh scales, bridge sensor readout, and precision temperature measurement where very low noise and high accuracy are more critical than high-speed sampling.
How does the MCP3551-E/SN's integrated 50/60 Hz rejection simplify industrial sensor designs?
The MCP3551-E/SN includes a digital filter designed to reject 50 Hz and 60 Hz mains-frequency interference, which is the dominant noise source in industrial sensor cables. By placing this rejection inside the ADC, the designer can eliminate external LC notch filters or complex active anti-aliasing stages, reducing BOM count and PCB complexity while maintaining better than 100 dB rejection of 50/60 Hz signals.
What differential input voltage range does the MCP3551-E/SN accept, and how should a designer match it to a Wheatstone bridge output?
The MCP3551-E/SN accepts differential analog inputs from -2.5 V to +2.5 V, giving a 5 V full-scale differential range. A Wheatstone bridge excited at 5 V typically produces a differential output of a few millivolts at full scale, so an instrumentation amplifier with a gain of 100–500 is normally used to amplify the bridge output to the 1–2.5 V range before driving the MCP3551, making full use of its 22-bit dynamic range.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.8184 | $2.82 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit