Description

DSM's VF-90 linear piezoelectric amplifier module provides functionality for driving piezoelectric (capacitive) loads in an extremely compact form factor. Compact original equipment manufacturer (OEM) format providing 90 mA maximum continuous and peak current for piezo devices rated for up to 150 V, 200 V, or for piezo benders (bimorphs) rated for up to ± 100 V. Low noise for precision applications; 0.5 mVrms typical. The VF-90 features over-current, over-temperature, and short-circuit protection as well as protection against over/under voltage conditions on the power line.

Specifications

<table><tbody><tr><td>Output Voltage (V)</td><td>-30 to +150</td></tr><tr><td>Input Voltage Signal (V)</td><td>-0.75 to +3.75</td></tr><tr><td>Max. Peak Current (mA)</td><td>90</td></tr><tr><td>Dimensions (in)</td><td>3.5 x 0.9 x 4</td></tr><tr><td>Dimensions (mm)</td><td>89 x 23 x 102</td></tr><tr><td>Operating Voltage (VDC)</td><td>5.5, 2 A</td></tr><tr><td>Bandwidth (kHz)</td><td>>5 (-3 dB)</td></tr><tr><td>Noise (mVrms)</td><td><1 (0.5 Typical)</td></tr><tr><td>Gain (V/V)</td><td>40 +/-5%</td></tr><tr><td>Recommended Min. Capacitance (nF)</td><td>200</td></tr><tr><td>Connector</td><td>Screw Terminals</td></tr></tbody></table>