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°C.
The MAX4007/MAX4008 are available in tiny, spacesaving
6-pin SOT23 packages, and operate over the extended temperature range of -40°C to +85°C.
Key Features
Applications/Uses
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
Consumer Electronics
Current-to-Voltage Conversion
Laboratory Instrumentation
Level Translation
Medical Instrumentation
Photodiode Current-Monitoring Systems
Portable Instrumentation
Key Specifications:
Fiber Photodiode Current Monitors
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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