MCP3551T-E/SN

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MCP3551T-E/SN

+BOM

IC ADC 22BIT SIGMA-DELTA 8SOIC

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Specifications

Attribute Value
Package Tape & Reel (TR)
ProductStatus Active
NumberofBits 22
SamplingRate(PerSecond) 14
NumberofInputs 1
InputType Differential
DataInterface SPI
Configuration ADC
NumberofA/DConverters 1
Architecture Sigma-Delta
ReferenceType External
Voltage-SupplyAnalog 2.7V ~ 5.5V
Voltage-SupplyDigital 2.7V ~ 5.5V
OperatingTemperature -40°C ~ 125°C
Package/Case 8-SOIC (0.154, 3.90mm Width)
SupplierDevicePackage 8-SOIC

Overview

Description

The MCP3551T-E/SN is a 22-bit delta-sigma ADC from Microchip, designed for high-precision analog-to-digital conversion. It features low noise (2.5 µV RMS), low power consumption (160 µA typical), and a SPI-compatible interface for easy microcontroller integration.
Key specifications:
- Resolution: 22 bits (21 bits noise-free).
- Input Range: Differential (±VREF, up to 2.048V).
- Sampling Rate: 12.5 SPS (max).
- Operating Voltage: 2.7V–5.5V.
- Package: 8-pin SOIC (SN).
Ideal for sensor interfaces, industrial instrumentation, and low-frequency signal acquisition where high accuracy is critical. Its internal oscillator and minimal external components simplify design.
For detailed use, refer to the datasheet for timing, calibration, and noise optimization.

Equivalent

Equivalent products to the MCP3551T-E/SN (24-bit ADC) include:
- ADS1240IPW (TI)
- LTC2400CS8 (Analog Devices)
- MAX11254 (Maxim Integrated)
- AD7799 (Analog Devices)
These offer similar 24-bit resolution and SPI/I2C interfaces. Check datasheets for exact specs like sampling rate, power, and package compatibility.

Features

The MCP3551T-E/SN is a 22-bit delta-sigma ADC with the following key features:
- Resolution: 22-bit (21-bit noise-free).
- Interface: SPI-compatible (up to 2.1 MHz).
- Input Type: Differential or single-ended.
- Sample Rate: 60 SPS (max).
- Voltage Range: ±2.5V (differential) or 0–2.5V (single-ended).
- Low Power: 1.5 mA (active), 1 µA (standby).
- Internal Oscillator: No external clock needed.
- Operating Voltage: 2.7V–5.5V.
- Temperature Range: -40°C to +125°C.
- Package: 8-pin SOIC.
Ideal for precision measurement in industrial, medical, and sensor applications.

Pinout

The MCP3551T-E/SN is a 22-bit delta-sigma ADC in an 8-pin SOIC package.
Pin Functions:
1. VDD – Power supply (2.7V–5.5V).
2. VIN+ – Positive analog input.
3. VIN– – Negative analog input.
4. VSS – Ground.
5. SCK – Serial clock input (SPI interface).
6. SDO – Serial data output.
7. CS – Chip select (active low).
8. MCLK – External clock input (optional).
Key Features:
- Single-channel differential input.
- SPI-compatible interface.
- Low power consumption.
- Internal oscillator (optional external clock).
This ADC is ideal for high-precision measurements in industrial, medical, and instrumentation applications.

Manufacturer

The MCP3551T-E/SN is manufactured by Microchip Technology Inc., a leading American semiconductor company specializing in microcontroller, mixed-signal, analog, and Flash-IP solutions. Founded in 1989 and headquartered in Chandler, Arizona, Microchip is known for its PIC microcontrollers, analog ICs, and embedded systems. The company serves industries like automotive, industrial, consumer electronics, and IoT. The MCP3551T-E/SN is a high-precision delta-sigma ADC, reflecting Microchip's expertise in analog and mixed-signal technology.

Package

The MCP3551T-E/SN comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. This surface-mount package is compact and widely used for analog and mixed-signal ICs, offering good thermal and electrical performance. The "SN" suffix denotes the SOIC package type.

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