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MAX4073, MAX4073F, MAX4073H, MAX4073T
Low-Cost, SC70, Voltage-Output, High-Side Current-Sense Amplifier


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 268kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail


Description
The MAX4073 low-cost, high-side current-sense amplifier features a voltage output that eliminates the need for gain-setting resistors making it ideal for cell phones, notebook computers, PDAs, and other systems where current monitoring is crucial. High-side current monitoring does not interfere with the ground path of the battery charger making the MAX4073 particularly useful in battery-powered systems. The input common-mode range of +2V to +28V is independent of the supply voltage. The MAX4073's wide 1.8MHz bandwidth makes it suitable for use inside battery-charger control loops.

The combination of three gain versions and a selectable external-sense resistor sets the full-scale current reading. The MAX4073 offers a high level of integration, resulting in a simple and compact current-sense solution.

The MAX4073 operates from a +3V to +28V single supply and draws only 0.5mA of supply current. This device is specified over the automotive operating temperature range (-40°C to +125°C) and is available in a space-saving 5-pin SC70 package (half the size of the SOT23).

For a similar device in a 6-pin SOT23 with a wider common-mode voltage range (0 to +28V), see the MAX4173 data sheet.

An evaluation kit is available:  MAX4073EVKIT  

Key Features
  • Low-Cost, Compact, Current-Sense Solution
  • Three Gain Versions Available
    • +20V/V (MAX4073T)
    • +50V/V (MAX4073F)
    • +100V/V (MAX4073H)
  • ±1.0% Full-Scale Accuracy
  • 500µA Supply Current
  • Wide 1.8MHz Bandwidth
  • +3V to +28V Operating Supply
  • Wide +2V to +28V Common-Mode Range Independent of Supply Voltage
  • Automotive Temperature Range (-40°C to +125°C)
  • Available in Space-Saving 5-Pin SC70 Package

Key Specifications:  Current Sense Amplifiers
Part Number CMVR
(V)
CMVR
(V)
VCC
(V)
VCC
(V)
ICC
(µA)
Bi-Dir. Curr. Sense VSENSE_FS
(mV)
Gain Gain Accuracy @25°C
(%)
BW
(kHz)
Comp-
arators
Oper. Temp.
(°C)
Package/Pins Price
min max min max typ recomm. max @ -3dB See Notes
MAX4073  2 28 3 28 500 No 100
20 V/V
50 V/V
100 V/V
4.5
1600
1700
1800
0 -40 to +125
SC70/5
SOT/6
$0.70 @1k
See All Current Sense Amplifiers (26)

Diagram
MAX4073F, MAX4073H, MAX4073T: Typical Operating Circuit
Typical Operating Circuit

Application Notes
  • Application Note 746: High-Side Current-Sense Measurement: Circuits and Principles - MAX4073
  • Application Note 3888: Performance of Current-Sense Amplifiers with Input Series Resistors - MAX4073
  • Application Note 3906: Creating a Bidirectional Current-Sense Amplifier from Two Unidirectional Current-Sense Amplifiers - MAX4073

    Evaluation Kits
  • MAX4073EVKIT

    Design Guides
  • Amplifiers and Sensors (PDF)

    Reliability Reports
  • Reliability Report: MAX4073F.pdf
  • Show FIT data for:
  • Request Reliability Report for:

    Software/Models
  • MAX4073T Macromodel
  • MAX4073T Macromodel
  • MAX4073TGBW Test Circuit File
  • MAX4073T Orcad Library

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-19 of 19

    MAX4073F Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4073FAXK+  
    Active SC70;5 pin;5.3 mm²
    Outline Drawing: 21-0076 (PDF)
    Land Pattern: 90-0188 (PDF)
    Use pkgcode/variation: X5+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4073FAXK-T    
    Active SC70;5 pin;5.3 mm²
    Outline Drawing: 21-0076 (PDF)
    Land Pattern: 90-0188 (PDF)
    Use pkgcode/variation: X5-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4073FAXK+T    
    Active SC70;5 pin;5.3 mm²
    Outline Drawing: 21-0076 (PDF)
    Land Pattern: 90-0188 (PDF)
    Use pkgcode/variation: X5+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4073FAUT-T    
    Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6-4*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4073FAUT+T    
    Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6+4*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4073H Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4073HAXK+  
    Active SC70;5 pin;5.3 mm²
    Outline Drawing: 21-0076 (PDF)
    Land Pattern: 90-0188 (PDF)
    Use pkgcode/variation: X5+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4073HAXK-T    
    Active SC70;5 pin;5.3 mm²
    Outline Drawing: 21-0076 (PDF)
    Land Pattern: 90-0188 (PDF)
    Use pkgcode/variation: X5-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4073HAXK+T    
    Active SC70;5 pin;5.3 mm²
    Outline Drawing: 21-0076 (PDF)
    Land Pattern: 90-0188 (PDF)
    Use pkgcode/variation: X5+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4073HAUT+  
    Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6+4*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4073HAUT  
    Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6-4*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4073HAUT-T    
    Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6-4*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4073HAUT+T    
    Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6+4*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4073T Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4073TAXK+  
    Active SC70;5 pin;5.3 mm²
    Outline Drawing: 21-0076 (PDF)
    Land Pattern: 90-0188 (PDF)
    Use pkgcode/variation: X5+1*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4073TAXK  
    Active SC70;5 pin;5.3 mm²
    Outline Drawing: 21-0076 (PDF)
    Land Pattern: 90-0188 (PDF)
    Use pkgcode/variation: X5-1*
    -40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4073TAXK-T    
    Active SC70;5 pin;5.3 mm²
    Outline Drawing: 21-0076 (PDF)
    Land Pattern: 90-0188 (PDF)
    Use pkgcode/variation: X5-1*
    -40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4073TAXK+T    
    Active SC70;5 pin;5.3 mm²
    Outline Drawing: 21-0076 (PDF)
    Land Pattern: 90-0188 (PDF)
    Use pkgcode/variation: X5+1*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4073TAUT+  
    Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6+4*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4073TAUT-T    
    Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6-4*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4073TAUT+T    
    Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6+4*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  • Topmark Coding: MAX4073
  • New Product Press Release 2001-06-01 

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    Document Ref.: 19-2048; Rev 0; 2001-05-18
    This page last modified: 2007-06-15


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