MAX4080
Info: : PRODUCTION
searchIcon
cartIcon

MAX4080

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

Show More showmore-icon

Current-Sense Amplifiers Achieve 0.1% Accuracy with Operation Up to 76V

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Viewing: Part Details
arrow-icon

Not the part you were looking for?

viewall Go to Product Selection Table
file View Data Sheet (Rev.6)
Documentation View All Documentation
SPICE Model MAX4080T SPICE Macro Model Download 1.79KB SPICE Model MAX4080F SPICE Macro Model Download 1.78KB SPICE Model MAX4080S SPICE Macro Model Download 4.23KB
Part Models 12
1ku List Price Starting From $1.57
Features
  • Ideal for High-Voltage Current Monitoring Applications
    • 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)
  • Flexible Current Sensing Supports Monitoring of Charge and Discharge of Batteries
    • Bidirectional (MAX4081) or Unidirectional(MAX4080) ISENSE
    • Reference Input for Bidirectional OUT (MAX4081)
  • Minimizes Required Board Space
    • 8-Pin µMAX Package
Additional Details
show more Icon

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.

Applications

  • 48V Telecom and Backplane Current Measurement
  • Automotive (12V, 24V, or 42V Batteries)
  • Avalanche Photodiode and PIN-Diode Current Monitoring
  • Bidirectional Motor Control
  • General System/Board-Level Current Sensing
  • Power-Management Systems
  • Precision High-Voltage Current Sources
Show More Arrow image
file View Data Sheet (Rev.6)
Documentation View All Documentation
SPICE Model MAX4080T SPICE Macro Model Download 1.79KB SPICE Model MAX4080F SPICE Macro Model Download 1.78KB SPICE Model MAX4080S SPICE Macro Model Download 4.23KB
Part Models 12
1ku List Price Starting From $1.57
modal bookmark icon

{{modalTitle}}

modal close icon

{{modalDescription}}

{{dropdownTitle}}

input down arrow
  • {{defaultSelectedText}}
    • {{#each projectNames}}
  • {{name}}
    • {{/each}} {{#if newProjectText}}
  • plus icon {{newProjectText}}
    • {{/if}}
{{#if toggleButtonDescription}}
{{toggleButtonDescription}}
{{/if}} {{#if newProjectTitle}}

{{newProjectTitle}}

{{projectNameErrorText}}

{{/if}}

MAX4080

Documentation

28
overlayclose

Filters

1 Applied

mobileoverlaydownarrow
  • All
    TickIcon
  • Reliability Data
  • Data Sheet
  • Technical Articles
  • Design Note
  • All
    TickIcon
  • English
  • Chinese
  • Japanese
resetfilter

Reset Filters

Data Sheet

3

PDF Vector

PDF

UPDATED 06/30/2021
English

MAX4080-MAX4081: 76V, High-Side, Current-Sense Amplifiers with Voltage Output Data Sheet (Rev.6)

Open PDF File

redirect
1.00M
download

Download PDF

PDF Vector

PDF

UPDATED 01/01/1900
Chinese

3597: 76V、高边、电流检测放大器，带有电压输出 Data Sheet

Open PDF File

redirect
1.00M
download

Download PDF

PDF Vector

PDF

UPDATED 01/01/1900
Japanese

3597: 電圧出力、76V、ハイサイド、電流検出アンプ Data Sheet

Open PDF File

redirect
1.00M
download

Download PDF

Reliability Data

1

PDF Vector

PDF

UPDATED 01/12/2023
English
MAX4080 Reliability Data redirect icon

41.57K

download

Download PDF

Technical Articles

17

PDF Vector

HTML

UPDATED 02/15/2023
English
Optocoupler Extends High-Side Current Sensor to 1kV redirect icon

PDF Vector

HTML

UPDATED 02/15/2023
Chinese
利用光电耦合器将高端电流检测器的工作电压扩展至1kV redirect icon

PDF Vector

HTML

UPDATED 02/15/2023
Japanese
ハイサイド電流センサを1kVまで拡張するフォトカプラ redirect icon

PDF Vector

HTML

UPDATED 04/08/2009
English
Protect Current-Sense Amplifiers Against Overvoltage Transients redirect icon

PDF Vector

HTML

UPDATED 07/08/2009
Chinese
检流放大器的瞬态过压保护 redirect icon

PDF Vector

HTML

UPDATED 07/10/2009
Japanese
過電圧トランジェントに対する電流検出アンプの保護 redirect icon

PDF Vector

HTML

UPDATED 10/16/2009
English
Improve Current Measurement Accuracy by Skewing the Input Offset Voltage on Current-Sense Amplifiers redirect icon

PDF Vector

HTML

UPDATED 12/30/2009
Chinese
调整检流放大器的失调电压提高电流测量精度 redirect icon

PDF Vector

HTML

UPDATED 02/19/2010
Japanese
電流検出アンプの入力オフセット電圧をスキューさせることによる電流測定精度の向上 redirect icon

PDF Vector

HTML

UPDATED 09/22/2006
English
Creating a Bidirectional Current-Sense Amplifier from Two Unidirectional Current-Sense Amplifiers redirect icon

PDF Vector

HTML

UPDATED 01/23/2007
Chinese
用两个单向电流检测放大器组成一个双向电流检测放大器 redirect icon

PDF Vector

HTML

UPDATED 09/22/2006
Japanese
2組の片方向電流検出アンプによる双方向電流検出アンプの作成 redirect icon

PDF Vector

HTML

UPDATED 11/19/2001
English
High-Side Current-Sense Measurement: Circuits and Principles redirect icon

PDF Vector

HTML

UPDATED 05/26/2015
Chinese
高边电流检测测量:电路和原理 redirect icon

PDF Vector

HTML

UPDATED 11/19/2001
Japanese
ハイサイドの電流検出、その原理と回路の実装方法を解き明かす redirect icon

PDF Vector

HTML

UPDATED 04/09/2013
English
DC Error Budget Calculator Simplifies Selection of Optimal Current-Sense Amplifiers redirect icon

PDF Vector

HTML

UPDATED 04/09/2013
Chinese
直流误差计算器简化检流放大器的优化 redirect icon

Design Note

7

PDF Vector

HTML

UPDATED 07/28/2000
English
Circuit Breaker Handles Voltages to 76V redirect icon

PDF Vector

HTML

UPDATED 12/03/2012
English
Current-Sense Amplifier Doubles as a High-Common Mode Instrumentation Amplifier redirect icon

PDF Vector

HTML

UPDATED 10/29/2013
Chinese
用电流检测放大器替代高共模仪表放大器 redirect icon

PDF Vector

HTML

UPDATED 11/29/2010
English
Extend Range of Current-Sense Amplifiers redirect icon

PDF Vector

HTML

UPDATED 03/14/2003
English
Add High Voltage Capability to the MAX471/MAX472 High-Side Current Sense Amplifiers redirect icon

PDF Vector

HTML

UPDATED 02/09/2011
English
Protect Current-Sense Amplifiers from Negative Overvoltage redirect icon

PDF Vector

HTML

UPDATED 06/21/2016
English
40W Single Port MAX5971A Current Sensing redirect icon

There are no results matching this criteria. Try resetting your filters or searching for a different term

close icon

Documentation

Technical Documents 14
show more Icon

Data Sheet 1

MAX4080-MAX4081: 76V, High-Side, Current-Sense Amplifiers with Voltage Output Data Sheet (Rev.6)

Reliability Data 1

MAX4080 Reliability Data

Design Note 6

Circuit Breaker Handles Voltages to 76V
Current-Sense Amplifier Doubles as a High-Common Mode Instrumentation Amplifier
Extend Range of Current-Sense Amplifiers
Add High Voltage Capability to the MAX471/MAX472 High-Side Current Sense Amplifiers
Protect Current-Sense Amplifiers from Negative Overvoltage
40W Single Port MAX5971A Current Sensing

Technical Articles 6

Optocoupler Extends High-Side Current Sensor to 1kV
Protect Current-Sense Amplifiers Against Overvoltage Transients
Improve Current Measurement Accuracy by Skewing the Input Offset Voltage on Current-Sense Amplifiers
Creating a Bidirectional Current-Sense Amplifier from Two Unidirectional Current-Sense Amplifiers
High-Side Current-Sense Measurement: Circuits and Principles
DC Error Budget Calculator Simplifies Selection of Optimal Current-Sense Amplifiers

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX4080FASA+ Small-Outline IC, Narrow (0.15in) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
MAX4080FASA+T Small-Outline IC, Narrow (0.15in) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
MAX4080FAUA+ Micro-MAX, Thin Shrink Small-Outline external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
MAX4080FAUA+T Micro-MAX, Thin Shrink Small-Outline external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
MAX4080SASA+ Small-Outline IC, Narrow (0.15in) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
MAX4080SASA+T Small-Outline IC, Narrow (0.15in) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
MAX4080SAUA+ Micro-MAX, Thin Shrink Small-Outline external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
MAX4080SAUA+T Micro-MAX, Thin Shrink Small-Outline external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
MAX4080TASA+ Small-Outline IC, Narrow (0.15in) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
MAX4080TASA+T Small-Outline IC, Narrow (0.15in) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
MAX4080TAUA+ Micro-MAX, Thin Shrink Small-Outline external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
MAX4080TAUA+T Micro-MAX, Thin Shrink Small-Outline external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

May 22, 2018

- 1702N

ASSEMBLY

MAX4080FASA+

PRODUCTION

MAX4080FASA+T

PRODUCTION

pdf

pcn_1702n

external-icon

Oct 30, 2020

- 1702R2

ASSEMBLY

MAX4080SASA+

PRODUCTION

MAX4080SASA+T

PRODUCTION

pdf

pcn_1702r2

external-icon

Jan 28, 2019

- 1753B

ASSEMBLY

MAX4080SAUA+

PRODUCTION

MAX4080SAUA+T

PRODUCTION

pdf

pcn_1753b

external-icon

Sep 14, 2018

- 1702B

ASSEMBLY

MAX4080TASA+

PRODUCTION

MAX4080TASA+T

PRODUCTION

pdf

pcn_1702b

external-icon

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

May 22, 2018

- 1702N

arrow down

ASSEMBLY

MAX4080FASA+

PRODUCTION

MAX4080FASA+T

PRODUCTION

pdf

pcn_1702n

external-icon
Oct 30, 2020

- 1702R2

arrow down

ASSEMBLY

MAX4080SASA+

PRODUCTION

MAX4080SASA+T

PRODUCTION

pdf

pcn_1702r2

external-icon
Jan 28, 2019

- 1753B

arrow down

ASSEMBLY

MAX4080SAUA+

PRODUCTION

MAX4080SAUA+T

PRODUCTION

pdf

pcn_1753b

external-icon
Sep 14, 2018

- 1702B

arrow down

ASSEMBLY

MAX4080TASA+

PRODUCTION

MAX4080TASA+T

PRODUCTION

pdf

pcn_1702b

external-icon

Software & Part Ecosystem

Parts Product Life Cycle Description

Current Sense Amplifiers3
MAX4073
popup image
Cart

PRODUCTION

Low-Cost, SC70, Voltage-Output, High-Side Current-Sense Amplifier

MAX4173
popup image
Cart

PRODUCTION

Low-Cost, SOT23, Voltage-Output, High-Side Current-Sense Amplifier

MAX4070
popup image
Cart

PRODUCTION

Bidirectional, High-Side, Current-Sense Amplifiers with Reference

Evaluation Kits 1

MAX4080EVKIT

Evaluation Kit for the MAX4080 and MAX4081

zoom

MAX4080EVKIT

Evaluation Kit for the MAX4080 and MAX4081

download icon

Download

 print icon

Print
MAX4080EVKIT
Evaluation Kit for the MAX4080 and MAX4081

Features and Benefits

  • Real-Time Current Monitoring
  • Wide 4.5V to 76V Input Common-Mode Range Independent of Operating Supply Voltage
  • Bidirectional or Unidirectional ISENSE
  • ±0.1% Full-Scale Accuracy
  • 8-Pin µMAX Package
  • Fully Assembled and Tested
Buy Now View Details

Product Detail

The MAX4080 evaluation kit (EV kit) is a fully assembled and tested surface-mount printed-circuit board (PCB) that contains a MAX4080SAUA (8-pin µMAX®) IC. The MAX4080 is a high-side, current-sense amplifier with an input common-mode voltage range that extends from 4.5V to 76V. The current-sense amplifier provides an analog voltage output proportional to the load current flowing through an external sense resistor.

The EV kit can also be used to evaluate the MAX4081, which is a bidirectional version of the current-sense amplifier. The MAX4081's single output pin continuously monitors the transition from charge to discharge and avoids the need for a separate polarity output pin. The MAX4081 requires an external reference to set the zerocurrent output level (VSENSE = 0V). Charging current is represented by an output voltage from VREF to VCC, while discharge current is given from VREF to GND.

All gain versions of the MAX4080 and MAX4081 are footprint-compatible and the MAX4080SAUA can easily be replaced by a MAX4080FAUA, MAX4080TAUA, MAX4081FAUA, MAX4081TAUA, or MAX4081SAUA. With a combination of three gain versions (5V/V, 20V/V, 60V/V = F, T, S suffix) and a user-selectable, external sense resistor, the user can easily match the full-scale load current to the required output-voltage range.

For maximum versatility, these parts can operate with 76V input common-mode voltage at RS+ and RS- pins, independent of operating supply voltage (VCC) used. These parts also allow a large differential voltage between RS+ and RS- pins for high reliability. 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.

Applications

  • 48V Telecom and Backplane Current Measurement
  • Automotive (12V, 24V, or 42V Batteries)
  • Avalanche Photodiode and PIN-Diode Current Monitoring
  • Bidirectional Motor Control
  • General System/Board-Level Current Sensing
  • Power-Management Systems
  • Precision High-Voltage Current Sources

Evaluation Kits1

MAX4080EVKIT

Evaluation Kit for the MAX4080 and MAX4081

Recently Viewed

Part Details
Documentation
Software & Part Ecosystem
Evaluation Kit
Tools & Simulations
Latest Discussions