Hi Lkhagvajantsan, The ADS1285 has been specifically designed to interface with geophone sensors while consuming very small 5mW while providing very high dynamic range. It is a good choice for seismic data acquisition. The main issue of the ADS1262 for seismic data acquisition is signal aliasing. The signal is aliased by two mechanisms: 1) The ADS1262 sinc filter provides very little rejection at the Nyquist frequency and above (> fs/2). This type of filter is not optimal for ac applications because of the aliasing. 2) Even if the ADS1262 had an optimal brickwall filter (such as in the ADS1285), multiplexing causes further aliasing problems because the effective sample rate due to multiplexing is now shifted to within passband of the filter, so there is no aliasing protection at fs/2. I recommend ADS1285 or lower cost ADS1288 for seismic data acquisition. Regards, Mark
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