MCP3551-22-Bit Delta-Sigma ADC - MSOP Package - High-Precision Analog-to-Digital Converter for Precision Measurements

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-Command

 Conversions through 3-wire SPI™ Interface

• Ultra-Low Conversion Current (MCP3551):

-100µA typica l(VDD = 2.7V)

-120µA typica l(VDD = 5.0V)

• Differential Input with VSS to VDD Common Mode

 Range

• 2.7V to 5.5V Single-Supply Operation

• Extended Temperature Range:

 -40°C to +125°C