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High-Accuracy, High-Side Current Monitors in SOT23

Precision, High-Side 10:1 Current Monitor Senses Currents from 10nA to 10mA

Product Details

Key Features

Applications/Uses

Parametric specs for Fiber Photodiode Current Monitors
Photo Diode Appl. PIN
IDIODE (min) 10nA (-113dBm)
IDIODE (max) 10mA (+7dBm)
VBIAS (V) (min) 2.7
VBIAS (V) (max) 22
ICC (µA) (typ) 40
iNOUT (pARMS) (to 10kHz) 9.2
Package/Pins SOT23/6
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
1.31
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Simplified Block Diagram

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Parameters

Parametric specs for Fiber Photodiode Current Monitors
Photo Diode Appl. PIN
IDIODE (min) 10nA (-113dBm)
IDIODE (max) 10mA (+7dBm)
VBIAS (V) (min) 2.7
VBIAS (V) (max) 22
ICC (µA) (typ) 40
iNOUT (pARMS) (to 10kHz) 9.2
Package/Pins SOT23/6
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
1.31

Key Features

  • Wide Reference Current Dynamic Range
    • Guaranteed 250nA to 2.5mA with 5% Accuracy
    • Extended 10nA to 10mA with 10% Monitor Accuracy
  • Current (MAX4004) or Voltage (MAX4006) Monitor Output
  • Reference Current-Limit Protection (20mA, typ)
  • Voltage Clamp Protects Subsequent Output Circuitry
  • +2.7V to +22V Wide Voltage Range Operation
  • 6-Pin SOT23 Packages

Applications/Uses

  • Consumer Electronics
  • Current-to-Voltage Conversion
  • Laboratory Instrumentation
  • Level Translation
  • Medical Instrumentation
  • Photodiode Current-Monitoring Systems
  • Portable Instrumentation

Description

The MAX4004/MAX4006 precision, high-side, current monitors are specifically designed for monitoring photodiode current in fiber applications. They offer a connection point for the reference current and a monitor output that produces a signal proportional to the reference current. The monitor output of the MAX4004 is a current proportional to the reference current. The monitor output of the MAX4006 is a voltage proportional to the reference current. The current monitors have six decades of dynamic range and monitor reference current of 250nA to 2.5mA with better than 5% accuracy. The photodiode current can be monitored from 10nA to 10mA with reduced accuracy.

The MAX4004/MAX4006 accept a +2.7V to +22V supply voltage, suitable for PIN photodiode applications. (For higher voltage applications, refer to the MAX4007/MAX4008 data sheet.) Internal current limiting (20mA, typ) protects the device against short-circuit-to-ground or excessive current conditions. A clamp diode protects the monitor output from overvoltage. Additionally, these devices feature thermal shutdown if the die temperature reaches +150°C.

The MAX4004/MAX4006 are available in tiny, space-saving 6-pin SOT23 packages, and operate over the extended temperature range of -40°C to +85°C.

Simplified Block Diagram

MAX4004, MAX4006: Functional Diagrams MAX4004, MAX4006: Functional Diagrams Zoom icon

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 .