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 PackagesApplication·Photodiode Current-Monitoring Systems
·Portable Instrumentation
·Medical Instrumentation
·Laboratory Instrumentation
·Consumer Electronics
·Current-to-Voltage Conversion
·Level TranslationPinout
SpecificationsCLAMP to GND .....................................................-0.3V to +25V
BIAS, REF to GND ................................................-0.3V to +25V
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°C)
6-Pin SOT23 (derate 8.7mW/°C above +70°C)...........696mW
Operating Temperature Range ......................-40°C to +85°C
Junction Temperature...................................................+150°C
Storage Temperature Range ........................-65°C to +150°C
Lead Temperature (soldering, 10s) .............................+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
DescriptionThe 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 MAX4004 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 of MAX4004 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, spacesaving 6-pin SOT23 packages, and operate over the extended temperature range of -40°C to +85°C.
MAX4004 Data Sheet
