The AD converter is embedded in the LQFP package.There are 48 pins, which are pronged contacts as part of a signal interface in a computer or other communications device.
LTC2358HLX-18#PBF Features
LTC2358HLX-18#PBF Applications
There are a lot of Analog Devices, Inc. LTC2358HLX-18#PBF ADC applications.