Piezoelectric transducers are used for many different applications that require low-noise, high-gain performance. These transducers exhibit high output impedance (> 10 MΩ), and therefore require very high impedance loading for subsequent input stages. The JFE150 has ultra-low input gate current (maximum I_G = ±10 pA) and low input capacitance (C_ISS = 24 pF), which makes the device an excellent choice for transducers with an effective capacitance of greater than 240 pF. For smaller, lower-capacitance transducers, the C_ISS can impact the gain of the front end by attenuating the input signal, thereby reducing the noise performance.