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Part: MAX4006
Category:
Analog & Mixed-Signal Processing
Description: MAX4004, MAX4006 High-Accuracy, High-side Current Monitors in SOT23
Company: Maxim Integrated Products
Datasheet: Download MAX4006 datasheet File size : 155 kB
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Datasheet text preview:
19-2742; Rev 1; 5/03
High-Accuracy, High-Side Current Monitors in SOT23
General 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 o f dynamic range and monitor reference current of 250nA to 2.5mA with better than 5% accuracy. The p h o t o d i o d e 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 h i g h e r 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, spacesaving 6-pin SOT23 packages, and operate over the extended temperature range of -40°C to +85°C.
Features
o Wide Reference Current Dynamic Range Guaranteed 250nA to 2.5mA with 5% Accuracy Extended 10nA to 10mA with 10% Monitor Accuracy o Current (MAX4004) or Voltage (MAX4006) Monitor Output o Reference Current-Limit Protection (20mA, typ) o Voltage Clamp Protects Subsequent Output Circuitry o +2.7V to +22V Wide Voltage Range Operation o 6-Pin SOT23 Packages
MAX4004/MAX4006
Ordering Information
PART MAX4004EUT-T MAX4006EUT-T TEMP RANGE -40°C to +85°C -40°C to +85°C PIN-PACKAGE 6 SOT23-6 6 SOT23-6 TOP MARK ABNL ABNN
Applications
Photodiode Current-Monitoring Systems Portable Instrumentation Medical Instrumentation Laboratory Instrumentation Consumer Electronics Current-to-Voltage Conversion Level Translation
Pin Configuration Selector Guide
TOP VIEW
CLAMP 1 6 BIAS
PART MAX4004EUT-T MAX4006EUT-T
PIN-PACKAGE 6 SOT23-6 6 SOT23-6
INTERNAL TYPICAL RESISTOR ACCURACY None 10k 5% 1%
GND 2
MAX4004 MAX4006
5
N.C.
OUT 3
4
REF
Typical Operating Circuit appears at end of data sheet.
SOT23
________________________________________________________________ Maxim Integrated Products
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For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
High-Accuracy, High-Side Current Monitors in SOT23 MAX4004/MAX4006
ABSOLUTE MAXIMUM RATINGS
CLAMP 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.
ELECTRICAL CHARACTERISTICS
(VBIAS = 5V, GND = 0V, REF = Open, VOUT = 0V (MAX4004), CLAMP = Open, TA = -40°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER Bias Voltage Range Bias Quiescent Current Reference Voltage Thermal Shutdown Engage Temperature Trip-Point Temperature Hysteresis Input Current Limit MAX4004 Output Current Noise SYMBOL V BIAS IB I A S V REF TSHDN THYS ILIM CONDITIONS Inferred from power-supply rejection test IREF = 250nA IREF = 2.5mA IREF = 2.5mA REF shorted to GND, junction temperature rising REF shorted to GND, junction temperature falling VREF = VBIAS - 5V f = 0.1Hz to 10Hz
i NOUT
MIN 2.7
TYP
MAX 22
UNITS V µA mA V °C °C mA
40 3.6 VBIAS - 1.1 VBIAS - 0.8 150 5 20 IREF = 250nA IREF = 2.5mA IREF = 250nA IREF = 2.5mA IREF = 250nA IREF = 2.5mA IREF = 250nA IREF = 2.5mA IREF = 250nA IREF = 2.5mA 0.3 63 9.2 1240 0.041 0.63 1.3 12.5 50 5 10 1 0 to VBIAS - 1.5 0 to VBIAS - 0.85
100 4
pARMS
f = 0.1Hz to 10kHz f = 0.1Hz to 10Hz MAX4006 Output Voltage Noise eNOUT f = 0.1Hz to 10kHz MAX4004 MAX4006 Output Leakage Output Voltage Range V OUT REF = open
µVRMS
G M k pA V
Output Resistance
ROUT
VBIAS = 2.7V to 22V, IREF = 0 to 1mA, MAX4004: IOUT/IOUT = ±1%, MAX4006: VOUT/IOUT = ±1%
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High-Accuracy, High-Side Current Monitors in SOT23
ELECTRICAL CHARACTERISTICS (continued)
(VBIAS = 5V, GND = 0V, REF = Open, VOUT = 0V (MAX4004), CLAMP = Open, TA = -40°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER Output Clamp Voltage Output Clamp Leakage MAX4004 Current Gain IOUT/IREF SYMBOL VOUT V CLAMP VCLAMP = 0 to 22V IREF = 250nA IREF = 2.5mA IREF = 10mA, VBIAS = 12V MAX4006 Transimpedance Gain IREF = 250nA VOUT/IREF (IOUT/IOUT) /VBIAS (VOUT/VOUT) /VBIAS tS IREF = 2.5mA IREF = 10mA, VBIAS = 12V Power-Supply Rejection Ratio (PSRR) MAX4004: VBIAS = 2.7V to 22V MAX4006: VBIAS = 2.7V to 22V IREF = 250nA IREF = 1mA IREF = 1mA 0.9 0.95 0.09 0.094 CONDITIONS MIN TYP 0.6 1 0.099 0.095 0.098 0.995 0.998 0.992 50 50 50 7.5 90 1000 1000 1000 ms µs ppm/V 1.1 1.05 V/mA 0.11 0.106 mA/mA MAX UNITS V pA
MAX4004/MAX4006
Power-Up Settling Time
IOUT settles within 0.1%, IREF = 250nA CIN = 10nF between IREF = 2.5mA REF and GND
Note 1: All devices are 100% tested at room temperature (TA = +25°C). All temperature limits are guaranteed by design.
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