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Quad Current-Sense Amplifier with Overcurrent Threshold Comparators

Accurate Current Measurement with Automatic Overcurrent Shutdown for Four Supply Rails

Product Details

Key Features

Parametric specs for Current Sense Amplifiers
VSENSE_FS (mV) (recomm.) 5
10
20
40
VOS @25°C (µV) (max) 600
Output Format Voltage
CMVR (V) (min) 2
CMVR (V) (max) 28
VCC (V) (min) 2.7
VCC (V) (max) 5.5
ICC (µA) (typ) 100
Bi-Dir. Curr. Sense No
Gain 100 V/V
200 V/V
25 V/V
50 V/V
Gain Accuracy @25°C (%) (max) 0.6
Oper. Temp. (°C) -40 to +85
Package/Pins TQFN/24
Budgetary
Price (See Notes)
2.12
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Simplified Block Diagram

Technical Docs

Support & Training

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Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Parameters

Parametric specs for Current Sense Amplifiers
VSENSE_FS (mV) (recomm.) 5
10
20
40
VOS @25°C (µV) (max) 600
Output Format Voltage
CMVR (V) (min) 2
CMVR (V) (max) 28
VCC (V) (min) 2.7
VCC (V) (max) 5.5
ICC (µA) (typ) 100
Bi-Dir. Curr. Sense No
Gain 100 V/V
200 V/V
25 V/V
50 V/V
Gain Accuracy @25°C (%) (max) 0.6
Oper. Temp. (°C) -40 to +85
Package/Pins TQFN/24
Budgetary
Price (See Notes)
2.12

Key Features

  • Four Precision Current-Sense Amplifiers
  • Fixed Gains of 25V/V, 50V/V, 100V/V, and 200V/V
  • Less Than ±600µV of Input Offset
  • Less Than ±0.6% of Gain Error (T/F/H) or ±0.8% of Gain Error (W)
  • Wide 2.0V to 28V Common Mode Range
  • Analog Voltage Outputs for Each Amplifier
  • Independent Overcurrent Comparators with Fixed 1.0V Threshold
  • Low Power Consumption
  • -40°C to +85°C Temperature Range
  • Small 24-Pin TQFN (4mm x 4mm) Package

Applications/Uses

  • Base Stations
  • Industrial Controls
  • Network Switches/Routers
  • Servers
  • Smart Grid Network Systems

Description

The MAX34406 is a quad, high-side, unidirectional, current-sense amplifier that offers precision accuracy. It provides analog outputs for each of the four amplifiers that can be routed to an external ADC, and contains four overcurrent comparators with a fixed 1.0V threshold. All four comparators are logically ORed, and the result can be delayed/filtered with an external capacitor before it is fed to a latched common shutdown open-drain output pin.

Simplified Block Diagram

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.