Hello ADI,
Do you have any reference design for piezo amplifiers using analog devices products? My application is underwater sensing of very faint sound signals generating at hundreds of kms with frequency range from 1Hz to 15 kHz, the amplitude of sound picked by piezo sensor would be in hundreds of nVs (system would be noisy as environment is noisy), the sensor is being deployed at varying depths from 10m to 1000m, and hence there would be significant DC offset because of pressure exerted by water. This signal would be amplified and supplied to an ADC. Can ADI suggest me a suitable reference design for my requirements. The piezo sensor is capacitive sensor with capacitance if 8000 pF +/- 10%. The design can be multiple parts to achieve the goal. I look forward to hear from you soon.
