This part is a kind of semiconductor called ADC161S626.

Function of this product has MicroPower ADC.

Manufacturers : National Semiconductor

Image and pinout :

Some of the text within the PDF file :

ADC161S626 16-Bit, 50 to 250 kSPS, Differential Input, MicroPower ADC May 14, 2009 ADC161S626 16-Bit, 50 to 250 kSPS, Differential Input, MicroPower ADC General Description The ADC161S626 is a 16-bit successive-approximation register (SAR) Analog-to-Digital converter (ADC) with a maximum sampling rate of 250 kSPS. The ADC161S626 has a minimum signal span accuracy of ± 0.003% over the temperate range of −40°C to +85°C. The converter features a differential analog input with an excellent common-mode signal rejection ratio of 85 dB, making the ADC161S626 suitable for noisy environments. The ADC161S626 operates with a single analog supply (VA) and a separate digital input/output (VIO) supply. VA can range from +4.5V to +5.5V and VIO can range from +2.7V to +5.5V. T [ ... ]

ADC161S626 PDF Datasheet Download