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 (MAX9919F) and 90V/V (MAX9919N). The MAX9918/MAX9919/MAX9920 operate as unidirectional amplifiers when VREFIN = GND and as bidirectional amplifiers when VREFIN = VCC/2. The MAX9920 attenuates the input signal by a factor of 4 at the input level-shifting stage allowing the device to sense voltages up to 200mV (unidirectional operation) or ±100mV (bidirectional operation). The MAX9918/MAX9919/MAX9920 operate with a single 5V supply voltage, are fully specified over the -40°C to +125°C automotive temperature range, and are available in an 8-pin SOIC package. Applications * Automotive * Current Monitoring of Inductive Loads * H-Bridge Motor Current Sensing * High- and Low-Side Precision Current Sensing * Precision High-Voltage Current Monitoring * Solenoid Current Sensing * Super-Capacitor Charge/Discharge Monitoring * Reduce Protective Clamping for High Inductive Kickback Voltage * -20V to +75V Input Common-Mode Voltage Range * Supports Wide Range of Precision AC and DC Current Sensing Applications * Uni- or Bidirectional Current Sensing * 0.6% (max) Gain Accuracy Error * 400µV (max) Input Offset Voltage * 120kHz, -3dB Bandwidth (MAX9919N) * Reference Input for Bidirectional OUT * Rail-to-Rail Output * Saves Board Space * 8-Pin SOIC Package * Single-Supply Operation (4.5V to 5.5V) * AEC-Q100 Qualified (MAX9918ASA/V+, MAX9919FASA/V+, MAX9919NASA/V+, MAX9920ASA/V+ Only) https://elecena.pl/product/22334582/20v-to-75v-input-range-precision-uni-bidirectional-current-sense-amplifiers 2022-12-28 https://elecena.pl/product/22334582/20v-to-75v-input-range-precision-uni-bidirectional-current-sense-amplifiers 2025-01-22