FEATURES
Throughput: 6 MSPS SAR architecture 16-bit resolution with no missing codes SNR: 92 dB Typ, 90dB Min @ 1MHz INL: ±1 LSB Typ, ±2 LSB Max DNL: ±0.3 LSB Typ, ±1 LSB Max Differential input range: ± 4.096V No latency/no pipeline delay (SAR architecture) Serial LVDS interface: Self-clocked mode Echoed-clock mode Reference: Internal 4.096 V External (1.2V) buffered to 4.096 V External 4.096 V Power dissipation 150 mW 32-Lead LFCSP package (5 mm x 5 mm) 16-Bit, 6MSPS PulSAR Differential ADC AD7625 FUNCTIONAL BLOCK DIAGRAM REFIN REF VCM 1.2V BANDGAP IN+ INCAP DAC 2 CLOCK LOGIC VIO CNV D AD7626 SAR SERIAL LVDS DCO CLK Figure 1. GENERAL DESCRIPTION
SAR architecture allows unmatched performance both in noise – 92dB SNR - and in linearity – 1LSB. On the CNV edge, it samples the voltage difference between IN+ and IN− pins. The 4.096V reference voltage, REF, can be generated internally or applied externally. All converted results are available on a single LVDS self-clocked or echoed-clock serial interface reducing external hardware connections.
Analog Devices
