MCP3551 Overview
The Microchip Technology Inc. MCP3551/3 devices are 2.7V to 5.5V low-power, 22-bit Delta-Sigma Analog-to-Digital Converters (ADCs). The devices offer output noise as low as 2.5 µVRMS, with a total unadjusted error of 10 ppm.
MCP3551 Key Features
- 22-bit ADC in Small 8-pin MSOP Package with Automatic Internal Offset and Gain Calibration
- Low-Output Noise of 2.5 µVRMS with Effective Resolution of 21.9 bits (MCP3551)
- 3 µV Typical Offset Error
- 2 ppm Typical Full-Scale Error
- 6 ppm Maximum INL Error
- Total Unadjusted Error Less Than 10 ppm
- No Digital Filter Settling Time, Single-mand Conversions through 3-wire SPI™ Interface
- Ultra-Low Conversion Current (MCP3551)
- 100 µA typical (VDD = 2.7V)
- 120 µA typical (VDD = 5.0V)