MAX4081FASA+T by Analog Devices

76V, High-Side, Current-Sense Amplifiers with Voltage Output

Status: Active
Series: MAX4081
RoHS: Unknown
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The MAX4080/MAX4081 are high-side, current-sense amplifiers with an input voltage range that extends from 4.5V to 76V making them ideal for telecom, automotive, backplane, and other systems where high-voltage current monitoring is critical. The MAX4080 is designed for unidirectional current-sense applications and the MAX4081 allows bidirectional current sensing. The MAX4081 single output pin continuously monitors the transition from charge to discharge and avoids the need for a separate polarity output. The MAX4081 requires an external reference to set the zero-current output level (VSENSE = 0V). The charging current is represented by an output voltage from VREF to VCC, while discharge current is given from VREF to GND. For maximum versatility, the 76V input voltage range applies independently to both supply voltage (VCC) and common-mode input voltage (VRS+). High-side current monitoring does not interfere with the ground path of the load being measured, making the MAX4080/MAX4081 particularly useful in a wide range of high-voltage systems. The combination of three gain versions (5V/V, 20V/V, 60V/V = F, T, S suffix) and a user-selectable, external sense resistor sets the full-scale current reading and its proportional output voltage. The MAX4080/MAX4081 offer a high level of integration, resulting in a simple, accurate, and compact current-sense solution. The MAX4080/MAX4081 operate from a 4.5V to 76V single supply and draw only 75µA of supply current. These devices are specified over the automotive operating temperature range (-40°C to +125°C) and are available in a space-saving 8-pin µMAX® or SO package.

Prices starting from US$0.60


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Logo for Newark Electronics Newark Electronics US$0.60
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Features

Ideal for High-Voltage Current Monitoring Applications Wide 4.5V to 76V Input Common-Mode Range Independent Operating Supply Voltage
Wide 4.5V to 76V Input Common-Mode Range
Independent Operating Supply Voltage
High Accuracy and Low Quiescent Current Support Precision Application Requirements ±0.1% Full-Scale Accuracy Low 100µV Input Offset Voltage Three Gain Versions Available 5V/V (MAX4080F/MAX4081F) 20V/V (MAX4080T/MAX4081T) 60V/V (MAX4080S/MAX4081S) 75µA Supply Current (MAX4080)
±0.1% Full-Scale Accuracy
Low 100µV Input Offset Voltage
Three Gain Versions Available 5V/V (MAX4080F/MAX4081F) 20V/V (MAX4080T/MAX4081T) 60V/V (MAX4080S/MAX4081S)
5V/V (MAX4080F/MAX4081F)
20V/V (MAX4080T/MAX4081T)
60V/V (MAX4080S/MAX4081S)
75µA Supply Current (MAX4080)
Flexible Current Sensing Supports Monitoring of Charge and Discharge of Batteries Bidirectional (MAX4081) or Unidirectional(MAX4080) ISENSE Reference Input for Bidirectional OUT (MAX4081)
Bidirectional (MAX4081) or Unidirectional(MAX4080) ISENSE
Reference Input for Bidirectional OUT (MAX4081)
Minimizes Required Board Space 8-Pin µMAX Package
8-Pin µMAX Package

Specifications

VSENSE_FS (mV) (recomm.) +/-125+/-50+/-500
VOS @25°C (µV) (max) 600
Output Format Voltage
CMVR (V) (min) 4.5
CMVR (V) (max) 76
VCC (V) (min) 4.5
VCC (V) (max) 76
ICC (µA) (typ) 103
Bi-Dir. Curr. Sense Yes
Gain 20 V/V5 V/V60 V/V
Gain Accuracy @25°C (%) (max) 0.6
Oper. Temp. (°C) -40 to +125
Package/Pins SOIC (N)/8UMAX/8
BudgetaryPrice (See Notes) 1.46


MAX4081FASA+T Amplifiers & Comparators by Analog Devices

CURRENT SENSE AMPLIFIER 150KHZ SOIC-8

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

Specifications

No. of Amplifiers 1 Amplifier
Input Bias Current 5A
Amplifier Case Style SOIC
No. of Pins 8Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Bandwidth 150kHz
Supply Voltage Min 4.5V
Supply Voltage Max 76V
Input Offset Voltage 100µV
CMRR 124dB
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Current Sense Amplifier, 150Khz, Soic-8 | Newark Electronics
CURRENT SENSE AMPLIFIER, 150KHZ, SOIC-8 | Farnell

Frequently Asked Questions

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Is the MAX4081FASA+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

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