Low-Power Single Channel 22-Bit Delta Sigma ADCs

The Microchip Technology Inc. MCP355X devices are 2.7V to 5.5V low-power, 22-bit delta-sigma A/D converters. The devices offer output noise as low as 2.5 µVRMS with a total unadjusted error of less than 10 ppm. The family exhibits less than 6 ppm integral non-linearity (INL) error, 3 µV offset error, and 2 ppm full scale error. The MCP355X devices provide high accuracy and low noise performance for applications where sensor measurements such as pressure, temperature, and humidity are performed. With the internal oscillator and high oversampling rate, minimal external components are required for high accuracy applications. The fully differential analog inputs make it compatible with a wide variety of sensor and measurement applications. The MCP355X devices operate from -40°C to +125°C and are available in the space-saving 8-pin MSOP and SOIC packages.



  • 22-bit ADC with automatic internal offset and gain calibration
  • Low output noise 2.5 µVrms
  • 3 µV offset error
  • 2 ppm typical full-scale error
  • 6 ppm maximum INL error
  • Total unadjusted error less than 10 ppm
  • Sample rate 12.5 sps
  • >120 dB rejection of 50 Hz noise
  • No digital filter settling time, single command conversions through 3-wire SPI™ interface
  • Low conversion current
  • 100 µA typical (VDD = 2.7V)
  • 120 µA typical (VDD = 5.0V)
  • 8-pin MSOP and SOIC packages
  • Differential inputs with VSS to VDD common mode range
  • 2.7V to 5.5V single supply operation
  • Extended temperature range: -40°C to +125°C



  • Family    Data Acquisition - Analog to Digital Converters (ADC)
  • Series    -
  • Number of Bits    22
  • Sampling Rate (Per Second)    12.5
  • Data Interface    Serial, SPI™
  • Number of Converters    1
  • Power Dissipation (Max)    -
  • Voltage Supply Source    Single Supply
  • Operating Temperature    -40°C ~ 125°C
  • Mounting Type    Surface Mount
  • Package / Case    8-SOIC (0.154", 3.90mm Width)
  • Supplier Device Package    8-SOICN

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  • Brand: Microchip
  • Product Code: MCP3550
  • Availability: In Stock
  • Fiyat : 20.00TL
  • KDV Dahil : 23.60TL

Tags: MCP3550 22BIT ADC