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Part Number: MAX4008

 

 

 

 

Description: The MAX4007/MAX4008 precision, high-side, high-voltage current monitors are specifically designed for ...


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MAX4008 General Description


The MAX4007/MAX4008 precision, high-side, high-voltage 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 MAX4007 is a current proportional to the reference current. The monitor output of the MAX4008 is a voltage proportional to the reference current. The current monitors have six decades of dynamic range and monitor reference currents of 250nA to 2.5mA with better than 5% accuracy. The photodiode current can be monitored from 10nA to 10mA with reduced accuracy.

The MAX4007/MAX4008 accept a supply voltage of +2.7V to +76V, suitable for APD or PIN photodiode applications. Internal current limiting (20mA, typ) protects the devices against short circuit to ground. A clamp diode protects the monitor output from overvoltage. Additionally,these devices feature thermal shutdown if the die temperature reaches +150.

The MAX4007/MAX4008 are available in tiny, spacesaving 6-pin SOT23 packages, and operate over the extended temperature range of -40 to +85.

MAX4008 Maximum Ratings

CLAMP to GND .....................................................-0.3V to +80V
BIAS, REF to GND ................................................-0.3V to +80V
OUT to GND ........................................-0.3V to (VCLAMP + 0.6V)
Short Circuit, REF to GND ........................................Continuous
Current into Any Pin.......................................................±30mA
Continuous Power Dissipation (TA = +70)
6-Pin SOT23 (derate 8.7mW/ above +70)................696mW
Operating Temperature Range ...........................-40 to +85
Junction Temperature......................................................+150
Storage Temperature Range .............................-65 to +150
Lead Temperature (soldering, 10s) .................................+300

MAX4008 Features

·Wide Reference Current Dynamic Range
  Guaranteed 250nA to 2.5mA with 5% Monitor Accuracy
  Extended 10nA to 10mA with 10% Monitor Accuracy
·Current (MAX4007) or Voltage (MAX4008) Monitor Outputs
·Reference Current-Limit Protection (20mA, typ)
·Voltage Clamp Protects Subsequent Output Circuitry
· +2.7V to +76V Wide Voltage Range Operation
·6-Pin SOT23 Packages

MAX4008 Typical Application

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

MAX4008 Connection Diagram

MAX4008  Connection Diagram

MAX4008 datasheet

MAX4008
PDF/DataSheet Download

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