MAX9918EVKIT+ by Analog Devices

-20V to +75V Input Range, Precision Uni-/Bidirectional, Current-Sense Amplifiers


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.

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Prices starting from US$23.70

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Features

Reduce Protective Clamping for High Inductive Kickback Voltage -20V to +75V Input Common-Mode Voltage Range
-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
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)
8-Pin SOIC Package
Single-Supply Operation (4.5V to 5.5V)
AEC-Q100 Qualified (MAX9918ASA/V+, MAX9919FASA/V+, MAX9919NASA/V+, MAX9920ASA/V+ Only)

Specifications

VSENSE_FS (mV) (recomm.) 50
VOS @25°C (µV) (max) 400
Output Format Voltage
CMVR (V) (min) -20
CMVR (V) (max) 75
VCC (V) (min) 4.5
VCC (V) (max) 5.5
ICC (µA) (typ) 1000
Bi-Dir. Curr. Sense Yes
Gain Adj.
Gain Accuracy @25°C (%) (max) 0.6
Oper. Temp. (°C) -40 to +125
Package/Pins SOIC (N)/8
BudgetaryPrice (See Notes) 1.24


MAX9918EVKIT+ Development Boards & Evaluation Kits by Analog Devices

EVAL BOARD CURRENT SENSE AMPLIFIER

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Silicon Manufacturer Maxim Integrated Products
Silicon Core Number MAX9918
Kit Application Type Amplifier
Application Sub Type Current Sense Amplifier
Kit Contents Eval Board MAX9918
Product Range -
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Eval Kit MAX9918 (-20V to +75V | Analog Devices
Eval Board, Current Sense Amplifier | Newark Electronics
EVAL BOARD, CURRENT SENSE AMPLIFIER | element14

Frequently Asked Questions

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Is the MAX9918EVKIT+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Analog Devices, Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX9918EVKIT+ .

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