The MAX9918, MAX9919F/N, and MAX9920 are single-supply, high-accuracy, current-sense amplifiers with a high common-mode range that extends from –20V to +75V. These amplifiers are well suited for current monitoring in inductive loads, such as motors and solenoids, where common-mode voltages can become negative due to flyback, reverse-drive conditions, or transient events.
Key Features
Input Common-Mode Voltage Range: -20V to +75V
Low Input Offset Voltage: 400µV(max)
0.4% (max) Gain Accuracy Error
4.5V to 5.5V Single-Supply Operation
Uni- or Bidirectional Current Sensing
REFIN Range from Ground to (VCC - 1.4V) for Bidirectional Output
