MAX2014 19-0583 Rev 1 2/12 50MHz to 1000MHz, 75dB Logarithmic Detector/Controller General Description Features The MAX2014 complete multistage logarithmic amplifier is Complete RF Detector/Controller designed to accurately convert radio-frequency (RF) sig- 50MHz to 1000MHz Frequency Range nal power in the 50MHz to 1000MHz frequency range to an equivalent DC voltage. The outstanding dynamic range Exceptional Accuracy Over Temperature and precision over temperature of this log amplifier make it High Dynamic Range particularly useful for a variety of base-station and other 2.7V to 5.25V Supply Voltage Range* wireless applications, including automatic gain control (AGC), transmitter power measurements, and received- Scaling Stable Over Supply and Temperature signal-strength indication (RSSI) for terminal devices. Variations The MAX2014 can also be operated in a controller Controller Mode with Error Output mode where it measures, compares, and controls the output power of a variable-gain amplifier as part of a Shutdown Mode with Typically 1A of Supply fully integrated AGC loop. Current This logarithmic amplifier provides much wider mea- Available in 8-Pin TDFN and 8-pin MAX Package surement range and superior accuracy compared to controllers based on diode detectors, while achieving excellent temperature stability over the full -40C to +85C operating range. Applications AGC Measurement and Control RF Transmitter Power Measurement *See the Power-Supply Connections section. RSSI Measurements Cellular Base-Station, WLAN, Microwave Link, Radar, and other Military Applications Optical Networks Ordering Information appears at end of data sheet. MAX is a registered trademark of Maxim Integrated Products, Inc. Functional Diagram V CC 1, 4 POWER DETECTORS 8 2 OUT INHI 7 50 7dB 7dB 7dB SET 3 INLO 20k 5 OFFSET AND COMMON- PWDN 20k MODE AMP MAX2014 6 GND Pin Configuration appears at end of data sheet. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.50MHz to 1000MHz, 75dB Logarithmic Detector/Controller ABSOLUTE MAXIMUM RATINGS V (Pins 1, 4) to GND........................................-0.3V to +5.25V Operating Temperature Range ...........................-40C to +85C CC SET, PWDN to GND....................................-0.3V to (V + 0.3V) Junction Temperature......................................................+150C CC Input Power Differential INHI, INLO................................+23dBm Storage Temperature Range .............................-65C to +150C Input Power Single Ended (INHI or INLO grounded).....+19dBm Lead Temperature (soldering, 10s) .................................+300C Continuous Power Dissipation (T = +70C) Soldering Temperature (reflow) .......................................+260C A TDFN (derate 18.5mW/C above +70C)....................1480mW MAX (derate 4.5mW/C above +70C) .......................362mW 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. PACKAGE THERMAL CHARACTERISTICS (Note 1) TDFN: MAX: Junction-to-Ambient Thermal Resistance ( ) ............54C/W Junction-to-Ambient Thermal Resistance ( ) ..........221C/W JA JA Junction-to-Case Thermal Resistance ( ) ...................8C/W Junction-to-Case Thermal Resistance ( ) .................42C/W JC JC Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial. DC ELECTRICAL CHARACTERISTICS (Typical Application Circuit (Figure 1), V = +3.3V, f = 50MHz to 1000MHz, R1 = 0, R4 = 0, R = 10k, T = -40C to +85C, S RF L A unless otherwise noted. Typical values are at T = +25C, unless otherwise noted.) (Note 2) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLY R4 = 75 1%, PWDN must be 4.75 5.25 connected to GND Supply Voltage V V S R4 = 0 2.7 3.6 T = +25C, V = 5.25V, A S 17.3 R4 = 75 Supply Current I mA CC T = +25C 17.3 20.5 A Supply Current Variation with Temp I T = -40C to +85C 0.05 mA/C CC A Shutdown Current I V = V 1A CC PWDN CC CONTROLLER REFERENCE (SET) SET Input Voltage Range 0.5 to 1.8 V SET Input Impedance 40 k DETECTOR OUTPUT (OUT) Source Current 4mA Sink Current 450 A Minimum Output Voltage V 0.5 V OUT(MIN) Maximum Output Voltage V 1.8 V OUT(MAX) 2 MAX2014