This part is a kind of semiconductor called AD7699.

Function of this product has 500 kSPS PulSAR ADC.

Manufacturers : Analog Devices

Image and pinout :

Some of the text within the PDF file :

Data Sheet FEATURES 16-bit resolution with no missing codes 8-channel multiplexer with choice of inputs Unipolar single-ended Differential (GND sense) Pseudobipolar Throughput: 500 kSPS INL: ±0.5 LSB typical, ±1.5 LSB maximum (±23 ppm or FSR) Dynamic range: 93.3 dB SINAD: 91.5 dB at 20 kHz THD: −97 dB at 20 kHz Analog input range: 0 V to VREF with VREF up to VDD Multiple reference types Internal 4.096 V External buffered (up to 4.096 V) External (up to VDD) Internal temperature sensor Channel sequencer, selectable 1-pole filter, busy indicator No pipeline delay, SAR architecture Single-supply 5 V operation with 1.8 V to 5 V logic interface Serial interface compatible with SPI, MICROWIRE, QSPI, and DSP Power dissipation 26 mW at 500 kSPS 5.2 μW at 100 SPS Standby current: 50 nA 20-lea [ ... ]

AD7699 PDF Datasheet Download