MAX4007/MAX4008 19-2743 Rev 3 4/07 High-Accuracy, 76V, High-Side Current Monitors in SOT23 General Description Features The MAX4007/MAX4008 precision, high-side, high-volt- Wide Reference Current Dynamic Range age current monitors are specifically designed for mon- Guaranteed 250nA to 2.5mA with 5% Monitor itoring photodiode current in fiber applications. They Accuracy offer a connection point for the reference current and a Extended 10nA to 10mA with 10% Monitor monitor output that produces a signal proportional to Accuracy the reference current. The monitor output of the MAX4007 is a current proportional to the reference cur- Current (MAX4007) or Voltage (MAX4008) Monitor rent. The monitor output of the MAX4008 is a voltage Outputs proportional to the reference current. The current moni- Reference Current-Limit Protection (20mA, typ) tors have six decades of dynamic range and monitor reference currents of 250nA to 2.5mA with better than Voltage Clamp Protects Subsequent Output 5% accuracy. The photodiode current can be moni- Circuitry tored from 10nA to 10mA with reduced accuracy. +2.7V to +76V Wide Voltage Range Operation The MAX4007/MAX4008 accept a supply voltage of 6-Pin SOT23 Packages +2.7V to +76V, suitable for APD or PIN photodiode appli- cations. 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 temper- ature reaches +150C. The MAX4007/MAX4008 are available in tiny, space- saving 6-pin SOT23 packages, and operate over the Ordering Information extended temperature range of -40C to +85C. PKG PART PIN-PACKAGE TOP MARK Applications CODE Photodiode Current-Monitoring Systems 6 SOT23-6 ABNM MAX4007EUT-T U6S-3 6 SOT23-6 ABNO Portable Instrumentation MAX4008EUT-T U6S-3 Medical Instrumentation Note: All devices are specified over the -40C to +85C operating temperature range. Laboratory Instrumentation Consumer Electronics Current-to-Voltage Conversion Level Translation Pin Configuration Selector Guide TOP VIEW PIN- INTERNAL TYPICAL PART PACKAGE RESISTOR ACCURACY (%) CLAMP16 BIAS MAX4007EUT-T 6 SOT23-6 None 5 MAX4007 MAX4008EUT-T 6 SOT23-6 10k 1 GND 2 5 N.C. MAX4008 OUT34 REF SOT23 Typical Operating Circuit appears at end of data sheet. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.High-Accuracy, 76V, High-Side Current Monitors in SOT23 ABSOLUTE MAXIMUM RATINGS CLAMP to GND ......................................................-0.3V to +80V Operating Temperature Range ...........................-40C to +85C BIAS, REF to GND..................................................-0.3V to +80V Junction Temperature......................................................+150C OUT to GND .........................................-0.3V to (V + 0.6V) Storage Temperature Range .............................-65C to +150C CLAMP Short Circuit, REF to GND..........................................Continuous Lead Temperature (soldering, 10s) .................................+300C Current into Any Pin..........................................................30mA Continuous Power Dissipation (T = +70C) A 6-Pin SOT23 (derate 8.7mW/C above +70C)............696mW 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. ELECTRICAL CHARACTERISTICS (V = 40V, GND = 0V, REF = open, V = 0V (MAX4007), CLAMP = open, T = -40C to +85C. Typical values are at T = +25C, BIAS OUT A A unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Inferred from power-supply Bias Voltage Range V 2.7 76 V BIAS rejection test I = 250nA 90 200 A REF Bias Quiescent Current I BIAS I = 2.5mA 3.6 4 mA REF Reference Voltage V I = 2.5mA V - 1.1 V - 0.8 V REF REF BIAS BIAS Thermal Shutdown REF shorted to GND, junction T 150 C SHDN Engage Temperature temperature rising Trip-Point Temperature REF shorted to GND, junction T 5 C HYS Hysteresis temperature falling Input Current Limit I V = V - 5V 20 mA LIM REF BIAS I = 250nA 0.3 REF f = 0.1Hz to 10Hz I = 2.5mA 63 REF MAX4007 i pA NOUT RMS Output Current Noise I = 250nA 9.2 REF f = 0.1Hz to 10kHz I = 2.5mA 1240 REF I = 250nA 0.041 REF f = 0.1Hz to 10Hz I = 2.5mA 0.63 MAX4008 REF e V NOUT RMS Output Voltage Noise I = 250nA 1.3 REF f = 0.1Hz to 10kHz I = 2.5mA 12.5 REF I = 250nA 50 G REF MAX4007 Output Resistance R I = 2.5mA 5M OUT REF MAX4008 10 k Output Leakage REF = open 1 pA V = 2.7V to 76V, I = 0 to 1mA, BIAS RE F 0 to 0 to Output Voltage Range V V MAX4007: I /I = 1%, OUT OUT OUT V - 1.5 V - 0.85 BIAS BIAS MAX4008: V /I = 1% OUT OUT V - OUT Output Clamp Voltage 0.6 V V CLAMP 2 MAX4007/MAX4008