This part is a kind of semiconductor called AD7682.

Function of this product has 16-Bit - 4-Channel/8-Channel - 250 kSPS PulSAR ADC.

Manufacturers : Analog Devices

Image and pinout :

Some of the text within the PDF file :

16-Bit, 4-Channel/8-Channel, 250 kSPS PulSAR ADC AD7682/AD7689 FEATURES 16-bit resolution with no missing codes 4-channel (AD7682)/8-channel (AD7689) multiplexer with choice of inputs Unipolar single ended Differential (GND sense) Pseudobipolar Throughput: 250 kSPS INL: ±0.5 LSB typical, ±1.5 LSB maximum (±23 ppm or FSR) Dynamic range: 93.8 dB SINAD: 92.5 dB @ 20 kHz THD: −100 dB @ 20 kHz Analog input range: 0 V to VREF with VREF up to VDD Multiple reference types Internal selectable 2.5 V or 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 2.7 V to 5.5 V operation with 1.8 V to 5 V logic interface Serial interface [ ... ]

AD7682 PDF Datasheet Download