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MAX9920 Datasheet Current-sense Amplifiers

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: Click here for production status of specific part numbers. MAX9918/MAX9919/MAX9920 -20V to +75V Input Range, Precision Uni-/Bidirectional, Current-Sense Amplifiers.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The MAX9918/MAX9919/MAX9920 are single-supply, high-accuracy current-sense amplifiers with a high input mon-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 mon-mode voltages can bee negative due to inductive kickback, reverse-battery conditions, or transient events.

The MAX9918/MAX9920

Key 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 t.

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number Description
MAX9921 2-Wire Hall-Effect Sensor Interface
MAX9922 High-Side Current-Sense Amplifiers
MAX9923 High-Side Current-Sense Amplifiers
MAX9924 Variable Reluctance Sensor Interfaces
MAX9925 Variable Reluctance Sensor Interfaces
MAX9926 Variable Reluctance Sensor Interfaces
MAX9927 Variable Reluctance Sensor Interfaces
MAX9928 Current-Sense Amplifiers
MAX9929 Current-Sense Amplifiers
MAX9910 (MAX9910 - MAX9913) Rail-to-Rail I/O Op Amps

MAX9920 Distributor