MAX4000/MAX4001/MAX4002 19-2288 Rev 2 12/07 2.5GHz 45dB RF-Detecting Controllers General Description Features Complete RF-Detecting PA Controllers The MAX4000/MAX4001/MAX4002 low-cost, low-power logarithmic amplifiers are designed to control RF power Variety of Input Ranges amplifiers (PA) operating in the 0.1GHz to 2.5GHz fre- MAX4000: -58dBV to -13dBV quency range. A typical dynamic range of 45dB makes (-45dBm to 0dBm in 50) this family of log amps useful in a variety of wireless appli- MAX4001: -48dBV to -3dBV cations including cellular handset PA control, transmitter (-35dBm to +10dBm in 50) power measurement, and RSSI for terminal devices. MAX4002: -43dBV to +2dBV Logarithmic amplifiers provide much wider measurement (-30dBm to +15dBm in 50) range and superior accuracy to controllers based on diode detectors. Excellent temperature stability is Frequency Range from 100MHz to 2.5GHz achieved over the full operating range of -40C to +85C. Temperature Stable Linear-in-dB Response The choice of three different input voltage ranges elimi- nates the need for external attenuators, thus simplifying Fast Response: 70ns 10dB Step PA control-loop design. The logarithmic amplifier is a volt- 10mA Output Sourcing Capability age-measuring device with a typical signal range of -58dBV to -13dBV for the MAX4000, -48dBV to -3dBV for Low Power: 17mW at 3V (typ) the MAX4001, and -43dBV to +2dBV for the MAX4002. Shutdown Current 30A (max) The input signal for the MAX4000 is internally AC-coupled Available in an 8-Bump UCSP and a Small 8-Pin using an on-chip 5pF capacitor in series with a 2k input resistance. This highpass coupling, with a corner at MAX Package 16MHz, sets the lowest operating frequency and allows the input signal source to be DC grounded. The Ordering Information MAX4001/MAX4002 require an external coupling capaci- PIN- TOP tor in series with the RF input port. These PA controllers PART TEMP RANGE PACKAGE MARK feature a power-on delay when coming out of shutdown, holding OUT low for approximately 5s to ensure glitch- ABF MAX4000EBL-T -40C to +85C 8 UCSP-8 free controller output. MAX4000EUA -40C to +85C 8 MAX The MAX4000/MAX4001/MAX4002 family is available in ABE MAX4001EBL-T -40C to +85C 8 UCSP-8 an 8-pin MAX package and an 8-bump chip-scale MAX4001EUA -40C to +85C 8 MAX package (UCSP). The device consumes 5.9mA with a ABD MAX4002EBL-T -40C to +85C 8 UCSP-8 5.5V supply, and when powered down the typical shut- down current is 13A. MAX4002EUA -40C to +85C 8 MAX Applications Pin Configurations appear at end of data sheet. Transmitter Power Measurement and Control TSSI for Wireless Terminal Devices Functional Diagram Cellular Handsets (TDMA, CDMA, GPRS, GSM) RSSI for Fiber Modules OUTPUT SHDN ENABLE V DELAY CC - gm X1 OUT DET DET DET DET DET + CLPF RFIN 10dB 10dB 10dB 10dB V-I SET LOW- OFFSET NOISE COMP BANDGAP MAX is a registered trademark of Maxim Integrated Products, Inc. MAX4000 GND UCSP is a trademark of Maxim Integrated Products, Inc. (PADDLE) 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.2.5GHz 45dB RF-Detecting Controllers ABSOLUTE MAXIMUM RATINGS (Voltages Referenced to GND) OUT Short Circuit to GND ..........................................Continuous V ...........................................................................-0.3V to +6V Continuous Power Dissipation (TA = +70C) CC OUT, SET, SHDN, CLPF.............................-0.3V to (V + 0.3V) 8-Bump UCSP (derate 4.7mW/C above +70C).........379mW CC RFIN 8-Pin MAX (derate 4.5mW/C above +70C) .............362mW MAX4000......................................................................+6dBm Operating Temperature Range ...........................-40C to +85C MAX4001....................................................................+16dBm Storage Temperature Range .............................-65C to +150C MAX4002....................................................................+19dBm Lead Temperature (soldering , 10s) ................................+300C Equivalent Voltage MAX4000 ..................................................................0.45V RMS MAX4001 ....................................................................1.4V RMS MAX4002 ....................................................................2.0V RMS 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 = 3V, SHDN = 1.8V, T = -40C to +85C, unless otherwise noted. Typical values are at T = +25C.) (Note 1) CC A A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V 2.7 5.5 V CC Supply Current I V = 5.5V 5.9 9.3 mA CC CC Shutdown Supply Current I SHDN = 0.8V, V = 5.5V 13 30 A CC CC Shutdown Output Voltage V SHDN = 0.8V 100 mV OUT Logic-High Threshold V 1.8 V H Logic-Low Threshold V 0.8 V L SHDN = 3V 5 20 SHDN Input Current I A SHDN SHDN = 0 -0.8 -0.01 SET-POINT INPUT Voltage Range (Note 2) V Corresponding to central 40dB 0.35 1.45 V SET Input Resistance R 30 M IN Slew Rate (Note 3) 16 V/s MAIN OUTPUT High, I = 10mA SOURCE 2.65 2.75 Voltage Range V V OUT Low, I = 350A 0.15 SINK Output-Referred Noise From CLPF 8 nV/Hz Small-Signal Bandwidth BW From CLPF 20 MHz Slew Rate V = 0.2V to 2.6V 8 V/s OUT 2 MAX4000/MAX4001/MAX4002