This part is a kind of semiconductor called AD7845.

Function of this product has LC2MOS Complete 12-Bit Multiplying DAC.

Manufacturers : Analog Devices

Image and pinout :

Some of the text within the PDF file :

a FEATURES 12-Bit CMOS MDAC with Output Amplifier 4-Quadrant Multiplication Guaranteed Monotonic (TMIN to T MAX) Space-Saving 0.3" DIPs and 24- or 28-Terminal Surface Mount Packages Application Resistors On Chip for Gain Ranging, etc. Low Power LC 2MOS APPLICATIONS Automatic Test Equipment Digital Attenuators Programmable Power Supplies Programmable Gain Amplifiers Digital-to-4–20 mA Converters LC2MOS Complete 12-Bit Multiplying DAC AD7845 FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS The AD7845 is the industry’s first 4-quadrant multiplying D/A converter with an on-chip amplifier. It is fabricated on the LC2MOS process, which allows precision linear components and digital circuitry to be implemented on the same chip. The 12 data inputs drive latches which are con [ ... ]

AD7845 PDF Datasheet Download