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MD-90 Motor Driver

Data Sheet

<table><tbody><tr><th>Quantity</th><th>Unit Price</th></tr><tr><td>1</td><td>$1180</td></tr><tr><td>2</td><td>$1144</td></tr><tr><td>5</td><td>$1109</td></tr><tr><td>10</td><td>$1075</td></tr></tbody></table>

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<table><tbody><tr><th>Quantity</th><th>Unit Price</th></tr><tr><td>1</td><td>$1180</td></tr><tr><td>2</td><td>$1144</td></tr><tr><td>5</td><td>$1109</td></tr><tr><td>10</td><td>$1075</td></tr></tbody></table>


The MD-90 is a 2-channel linear amplifier for operating the I-20 piezo motor. This original equipment manufacturer (OEM) unit can be used in two primary ways as a: 1.) 2-channel piezo motor driver complete with quadrature encoder feedback and 2.) 2-channel piezo device amplifier with analog feedback for both closed and open loop operation.


<table><tbody><tr><td>Channels</td><td>2 with USB Interface</td></tr><tr><td>Maximum Continuous Current (mA)</td><td>90 (RMS current into a capacitive load)</td></tr><tr><td>Maximum Peak Current (mA)</td><td>90</td></tr><tr><td>Output Voltage</td><td>2 Channels -30 to +150 V</td></tr><tr><td>Amplifier bandwidth (kHz)</td><td>> 5 (-3 dB)</td></tr><tr><td>Electrical Noise on Output (mVrms)</td><td>~2</td></tr><tr><td>Operating Voltage</td><td>24 VDC input at 3A</td></tr></tbody></table>


Two 16-bit and two 12-bit differential inputs

Two 16-bit DACS

Configurable input voltages (eight ranges)


Differential or single ended encoder inputs 5V 1A max to power encoder

Eight digital IO lines ( can be configured for input or output during manufacturing)


Dedicated power supply controller (closed loop voltage control)

Remote enable and soft start to limit current on power up

Main controller limits output current for each channel


Original equipment manufacturer (OEM) style with board edge connectors

1” X 2” X 6” enclosure


Each channel is independently controlled. Preprogrammed waveforms for DSM's motors are included.

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