This part is a kind of semiconductor called ADS7861E.
Function of this product has Dual/ 500kHz/ 12-Bit/ 2 2 Channel/ Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTER.
Manufacturers : Burr-Brown Corporation
Image and pinout :

Some of the text within the PDF file :
® ADS ADS7861 786 1 Dual, 500kHz, 12-Bit, 2 + 2 Channel, Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTER FEATURES q q q q q q q 4 INPUT CHANNELS FULLY DIFFERENTIAL INPUTS 2µs TOTAL THROUGHPUT PER CHANNEL GUARANTEED NO MISSING CODES 1MHz EFFECTIVE SAMPLING RATE LOW POWER: 40mW SSI SERIAL INTERFACE DESCRIPTION The ADS7861 is a dual, 12-bit, 500kHz, analog-todigital converter with 4 fully differential input channels grouped into two pairs for high speed, simultaneous signal acquisition. Inputs to the sample-and-hold amplifiers are fully differential and are maintained differential to the input of the A/D converter. This provides excellent common-mode rejection of 80dB at 50kHz which is important in high noise environments. The ADS7861 offers a high speed, dual serial interface and con [ ... ]
ADS7861E PDF Datasheet Download
