16λ˫¼«ÐÔÊäÈëͬ²½²ÉÑùADCÊý¾Ý±íAD7606/ad7606-6/ad7606-4

¡¡¡¡The AD76061 /AD7606-6/AD7606-4 are 16-bit£¬ simultaneous sampling£¬ analog-to-digital data acquisition systems £¨DAS£© with eight£¬ six£¬ and four channels£¬ respectively. Each part contains analog input clamp protection£¬ a second-order antialiasing filter£¬ a track-and-hold amplifier£¬ a 16-bit charge redistribution successive approximation analog-to-digital converter £¨ADC£©£¬ a flexible digital filter£¬ a 2.5 V reference and reference buffer£¬ and high speed serial and parallel interfaces. The AD7606/AD7606-6/AD7606-4 operate from a single 5 V supply and can accommodate ¡À10 V and ¡À5 V true bipolar input signals while sampling at throughput rates up to 200 kSPS for all channels. The input clamp protection circuitry can tolerate voltages up to ¡À16.5 V. The AD7606 has 1 M? analog input impedance regardless of sampling frequency. The single supply operation£¬ on-chip filtering£¬ and high input impedance eliminate the need for driver op amps and external bipolar supplies. The AD7606/AD7606-6/AD7606-4 antialiasing filter has a 3 dB cutoff frequency of 22 kHz and provides 40 dB antialias rejection when sampling at 200 kSPS. The flexible digital filter is pin driven£¬ yields improvements in SNR£¬ and reduces the 3 dB bandwidth. 1 Patent pending.