Part # AD7643 datasheet

Part Manufacturer: Analog Devices

Analog Devices

Part Description: AD7643 18-Bit 1.25 MSPS PulSAR ADC Data Sheet (Rev. 0)


Part Details:

18-Bit, 1.25 MSPS PulSAR® ADC AD7643 FEATURES FUNCTIONAL BLOCK DIAGRAM Throughput: 1.25 MSPS TEMP REFBUFIN REF REFGND DVDD DGND INL: ±1.5 LSB typical, ±3 LSB maximum (±11 ppm of full scale) AGND 18-bit resolution with no missing codes AD7643 OVDD AVDD Dynamic range: 95 dB typical OGND REF SINAD: 93.5 dB typical @ 20 kHz (VREF = 2.5 V) REF AMP SERIAL THD: -113 dB typical @ 20 kHz (V PORT REF = 2.5 V) IN+ 18 SWITCHED D[17:0] 2.048 V internal reference: typical drift 8 ppm/°C; TEMP output IN­ CAP DAC MODE0 PARALLEL Differential input range: ±VREF (VREF up to 2.5 V) INTERFACE MODE1 No pipeline delay (SAR architecture) PDREF CLOCK BUSY Parallel (18-, 16-, or 8-bit bus) and serial 5 V/3.3 V/2.5 V interface PDBUF RD CONTROL LOGIC AND SPI®/QSPITM/MICROWIRETM/DSP compatible PD CALIBRATION CIRCUITRY CS Single 2.5 V supply operation RESET D0/OB/2C Power dissipation -001 65 mW typical @ 1.25 MSPS with internal REF CNVST


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AD7643.pdf Datasheet