22-Bit A/D Converters
AD7716Analog Devices   CMOS, 4-Channel, 22-Bit Data Acquisition System 
ADS1212Texas Instruments   22-Bit Analog-to-Digital Converter 
ADS1213Texas Instruments   22-Bit Analog-to-Digital Converter 
CS5542Cirrus Logic   22-Bit, Multichannel Delta-Sigma A/D Converter Chipset 
HI7190Intersil   A/D, 10KHz, Sigma Delta Converter, 24-Bit, 0.0007 %FS INL, 22-Bits Resolution No Missing Codes 

ChipCatalog.com - Your Source of Information About Electronic Components