资 源 简 介
The ADS5204 is a dual 10-bit, 40MSPS Analog-to-DigitalConverter (ADC). It simultaneously converts each analoginput signal into a 10-bit, binary coded digital word up toa maximum sampling rate of 40MSPS per channel. Alldigital inputs and outputs are 3.3VTTL/CMOS compaTIble.An innovaTIve dual pipeline architecture implemented ina CMOS process and the 3.3V supply results in very lowpower dissipaTIon. In order to provide maximum flexibility,both top and bottom voltage references can be setfrom user-supplied voltages. AlternaTIvely, if no externalreferences are available, the on-chip internal referencescan be used. Both ADCs share a common referenceto improve offset and gain matching. If externalreference voltage levels are available, the internal referencescan be powered down independently from therest of the chip, resulting in even greater power savings.The ADS5204 also features dual, onboard ProgrammableGain Amplifiers (PGAs) that allow a setting of 0dB to 18dBto adjust the gain of each set of inputs in order to matchthe amplitude of the incoming signal.The ADS5204 is characterized for operation from –40°Cto +85°C and is available in a TQFP-48 package.
