A high performance, fully compensated Error Amplifier
with access to both inputs and output (Pins 9, 10, 11) is
provided to facilitate the implementation of closed loop
motor speed control. The amplifier features a typical dc
voltage gain of 80 dB, 0.6 MHz gain bandwidth, and a wide
input common mode voltage range that extends from ground
to Vref. In most open loop speed control applications, the
amplifier is configured as a unity gain voltage follower with
the Noninverting Input connected to the speed set voltage
source. Additional configurations are shown in Figures 30
through 34