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MAX9918/MAX9919/MAX9920
-20V to +75V Input Range, Precision Uni-/Bidirectional,
Current-Sense
Amplifiers
General Description
The MAX9918/MAX9919/MAX9920 are single-supply, high-accuracy current-sense
amplifiers with a high input common-mode range that extends from -20V to +75V.
These
amplifiers are well suited for current monitoring of inductive loads such as motors and solenoids, where common-mode
voltages can become negative due to inductive kickback, reverse-battery conditions, or transient events.
The MAX9918/MAX9920 feature adjustable gain set by an external resistive-divider network.
The MAX9919 features fixed gains of 45V/V ...