I am designing a moving magnet actuator for nano positioning application and need a linear servo driver that could operate it in the current mode. My requirements are - Current driver that could run a 400 mH and 21 ohms coil in the actuator at a current closed loop bandwidth of 1000 Hz and has a noise floor of 10 nV/sqrt(Hz) or 10 micro volts rms till 1 MHz or lower noise floor. I am also want the driver to give at least 2-3 A continuous current. Does TI have any current driver that meets these specifications.
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