19-2288; Rev 2; 12/07 2.5GHz 45dB RF-Detecting Controllers The MAX4000/MAX4001/MAX4002 low-cost, low-power logarithmic amplifiers are designed to control RF power amplifiers (PA) operating in the 0.1GHz to 2.5GHz frequency range. A typical dynamic range of 45dB makes this family of log amps useful in a variety of wireless applications including cellular handset PA control, transmitter power measurement, and RSSI for terminal devices. Logarithmic amplifiers provide much wider measurement range and superior accuracy to controllers based on diode detectors. Excellent temperature stability is achieved over the full operating range of -40C to +85C. The choice of three different input voltage ranges eliminates the need for external attenuators, thus simplifying PA control-loop design. The logarithmic amplifier is a voltage-measuring device with a typical signal range of -58dBV to -13dBV for the MAX4000, -48dBV to -3dBV for the MAX4001, and -43dBV to +2dBV for the MAX4002. The input signal for the MAX4000 is internally AC-coupled using an on-chip 5pF capacitor in series with a 2k input resistance. This highpass coupling, with a corner at 16MHz, sets the lowest operating frequency and allows the input signal source to be DC grounded. The MAX4001/MAX4002 require an external coupling capacitor in series with the RF input port. These PA controllers feature a power-on delay when coming out of shutdown, holding OUT low for approximately 5s to ensure glitchfree controller output. The MAX4000/MAX4001/MAX4002 family is available in an 8-pin MAX(R) package and an 8-bump chip-scale package (UCSPTM). The device consumes 5.9mA with a 5.5V supply, and when powered down the typical shutdown current is 13A. Applications Features Complete RF-Detecting PA Controllers Variety of Input Ranges MAX4000: -58dBV to -13dBV (-45dBm to 0dBm in 50) MAX4001: -48dBV to -3dBV (-35dBm to +10dBm in 50) MAX4002: -43dBV to +2dBV (-30dBm to +15dBm in 50) Frequency Range from 100MHz to 2.5GHz Temperature Stable Linear-in-dB Response Fast Response: 70ns 10dB Step 10mA Output Sourcing Capability Low Power: 17mW at 3V (typ) Shutdown Current 30A (max) Available in an 8-Bump UCSP and a Small 8-Pin MAX Package Ordering Information PART TEMP RANGE PINPACKAGE MAX4000EBL-T -40C to +85C 8 UCSP-8 MAX4000EUA -40C to +85C 8 MAX MAX4001EBL-T -40C to +85C 8 UCSP-8 MAX4001EUA -40C to +85C 8 MAX MAX4002EBL-T -40C to +85C 8 UCSP-8 MAX4002EUA -40C to +85C 8 MAX TOP MARK ABF -- ABE -- ABD -- 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 ENABLE DELAY SHDN VCC DET DET DET DET DET gm + X1 CLPF RFIN 10dB 10dB 10dB 10dB V-I MAX is a registered trademark of Maxim Integrated Products, Inc. UCSP is a trademark of Maxim Integrated Products, Inc. OUT OFFSET COMP LOWNOISE BANDGAP SET MAX4000 GND (PADDLE) ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. MAX4000/MAX4001/MAX4002 General Description MAX4000/MAX4001/MAX4002 2.5GHz 45dB RF-Detecting Controllers ABSOLUTE MAXIMUM RATINGS (Voltages Referenced to GND) VCC ...........................................................................-0.3V to +6V OUT, SET, SHDN, CLPF .............................-0.3V to (VCC + 0.3V) RFIN MAX4000 ......................................................................+6dBm MAX4001 ....................................................................+16dBm MAX4002 ....................................................................+19dBm Equivalent Voltage MAX4000 ..................................................................0.45VRMS MAX4001 ....................................................................1.4VRMS MAX4002 ....................................................................2.0VRMS OUT Short Circuit to GND ..........................................Continuous Continuous Power Dissipation (TA = +70C) 8-Bump UCSP (derate 4.7mW/C above +70C).........379mW 8-Pin MAX (derate 4.5mW/C above +70C) .............362mW Operating Temperature Range ...........................-40C to +85C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering , 10s) ................................+300C 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 (VCC = 3V, SHDN = 1.8V, TA = -40C to +85C, unless otherwise noted. Typical values are at TA = +25C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP UNITS Supply Voltage VCC 5.5 V Supply Current ICC VCC = 5.5V 5.9 9.3 mA Shutdown Supply Current ICC SHDN = 0.8V, VCC = 5.5V 13 30 A Shutdown Output Voltage VOUT Logic-High Threshold VH Logic-Low Threshold VL SHDN Input Current ISHDN 2.7 MAX SHDN = 0.8V 100 mV 1.8 V 0.8 SHDN = 3V 5 SHDN = 0 -0.8 Corresponding to central 40dB 0.35 20 -0.01 V A SET-POINT INPUT Voltage Range (Note 2) Input Resistance VSET RIN Slew Rate (Note 3) 1.45 V 30 M 16 V/s MAIN OUTPUT Voltage Range VOUT Output-Referred Noise Small-Signal Bandwidth Slew Rate 2 BW High, ISOURCE = 10mA Low, ISINK = 350A 2.65 2.75 0.15 V From CLPF 8 nV/Hz From CLPF 20 MHz VOUT = 0.2V to 2.6V 8 V/s _______________________________________________________________________________________ 2.5GHz 45dB RF-Detecting Controllers (VCC = 3V, SHDN = 1.8V, fRF = 100MHz to 2.5GHz, TA = -40C to +85C, unless otherwise noted. Typical values are at TA = +25C.) (Note 1) PARAMETER SYMBOL RF Input Frequency fRF RF Input Voltage Range (Note 4) VRF Equivalent Power Range (50 Terminated) (Note 4) Logarithmic Slope PRF VS CONDITIONS MAX UNITS 100 2500 MHz MAX4000 -58 -13 MAX4001 -48 -3 MAX4002 -43 +2 MAX4000 -45 0 MAX4001 -35 +10 MAX4002 -30 +15 fRF = 100MHz PX TYP 22.5 25.5 fRF = 900MHz 25 fRF = 1900MHz 29 fRF = 100MHz Logarithmic Intercept MIN fRF = 900MHz fRF = 1900MHz mV/dB -62 -55 -49 MAX4001 -52 -45 -39 MAX4002 -47 -40 -34 -57 MAX4001 -48 MAX4002 -43 MAX4000 -56 MAX4001 -45 MAX4002 -41 dBm 28.5 MAX4000 MAX4000 dBV dBm RF INPUT INTERFACE DC Resistance RDC Inband Resistance RIB Inband Capacitance CIB MAX4001/MAX4002, connected to VCC (Note 5) MAX4000, internally AC-coupled (Note 6) 2 k 2 k 0.5 pF Note 1: All devices are 100% production tested at TA = +25C and are guaranteed by design for TA = -40C to +85C as specified. All production AC testing is done at 100MHz. Note 2: Typical value only, set-point input voltage range determined by logarithmic slope and logarithmic intercept. Note 3: Set-point slew rate is the rate at which the reference level voltage, applied to the inverting input of the gm stage, responds to a voltage step at the SET pin (see Figure 1). Note 4: Typical min/max range for detector. Note 5: MAX4000 internally AC-coupled. Note 6: MAX4001/MAX4002 are internally resistive-coupled to VCC. _______________________________________________________________________________________ 3 MAX4000/MAX4001/MAX4002 ELECTRICAL CHARACTERISTICS Typical Operating Characteristics (VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified. All log conformance plots are normalized to their respective temperatures.) 2.5GHz 1.4 0.9GHz 1.2 0.9GHz 1.0 0.1GHz 0.8 0.1GHz 0.8 0.6 0.6 0.4 0.4 0.4 0.2 -50 -40 -30 -20 -10 0 10 0.2 -50 -40 -30 -20 -10 0 10 20 -40 0 10 20 MAX4000 SET vs. INPUT POWER (UCSP) MAX4001 SET vs. INPUT POWER (UCSP) MAX4002 SET vs. INPUT POWER (UCSP) 1.6 0.1GHz 1.4 1.9GHz 1.4 1.2 SET (V) 0.1GHz 1.0 0.9GHz 1.2 1.9GHz 0.9GHz 1.0 0.8 0.8 0.6 0.4 0.4 0.4 0.2 0.2 0.2 0 0 -40 -30 -20 -10 0 10 0.9GHz 1.9GHz 1.0 0.6 -50 2.5GHz 1.6 SET (V) 1.2 1.8 0.6 2.5GHz 0.1GHz 0 -50 -40 -30 -20 -10 0 10 20 -40 -30 -20 -10 0 10 20 INPUT POWER (dBm) INPUT POWER (dBm) INPUT POWER (dBm) MAX4000 LOG CONFORMANCE vs. INPUT POWER (MAX) MAX4001 LOG CONFORMANCE vs. INPUT POWER (MAX) MAX4002 LOG CONFORMANCE vs. INPUT POWER (MAX) 0 -1 -2 1.9GHz 1 0 0.9GHz -20 0 -1 -1 -2 -2 -3 -3 -4 -4 -30 1 1.9GHz 0.1GHz -3 -40 0.1GHz 2 ERROR (dB) ERROR (dB) 1 2.5GHz 3 2 1.9GHz 0.9GHz 0.1GHz 30 MAX4000 toc09 2.5GHz 2.5GHz 3 4 MAX4000 toc08 3 2 4 MAX4000 toc07 4 30 MAX4000 toc06 1.4 1.8 MAX4000 toc04 2.5GHz -50 -10 INPUT POWER (dBm) 1.6 -60 -20 INPUT POWER (dBm) 1.8 0.8 -30 INPUT POWER (dBm) MAX4000 toc05 -60 0.9GHz 1.0 0.6 0.2 2.5GHz 1.4 SET (V) SET (V) SET (V) 1.0 1.9GHz 1.6 1.2 0.1GHz 0.8 SET (V) 1.8 2.5GHz 1.4 1.2 -10 INPUT POWER (dBm) 4 1.9GHz 1.6 MAX4002 SET vs. INPUT POWER (MAX) MAX4000 toc02 1.9GHz 1.6 1.8 MAX4000 toc01 1.8 MAX4001 SET vs. INPUT POWER (MAX) MAX4000 toc03 MAX4000 SET vs. INPUT POWER (MAX) ERROR (dB) MAX4000/MAX4001/MAX4002 2.5GHz 45dB RF-Detecting Controllers 0 10 0.9GHz -4 -40 -30 -20 -10 0 INPUT POWER (dBm) 10 20 -35 -25 -15 -5 5 INPUT POWER (dBm) _______________________________________________________________________________________ 15 25 2.5GHz 45dB RF-Detecting Controllers (VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified. All log conformance plots are normalized to their respective temperatures.) 0.1GHz MAX4000 toc12 3 2 2 4 MAX4000 toc11 3 3 2.5GHz 0.1GHz 2 0.9GHz 2.5GHz 0.9GHz 1 0 ERROR (dB) 1 ERROR (dB) ERROR (dB) 4 MAX4000 toc10 4 MAX4002 LOG CONFORMANCE vs. INPUT POWER (UCSP) MAX4001 LOG CONFORMANCE vs. INPUT POWER (UCSP) MAX4000 LOG CONFORMANCE vs. INPUT POWER (UCSP) 0 -1 -1 0.1GHz 1.9GHz -2 0 0.9GHz -1 2.5GHz -2 1.9GHz -2 1 1.9GHz -4 -40 -30 -20 -10 0 -40 10 -30 -10 0 10 -35 20 -25 -15 -5 5 15 25 INPUT POWER (dBm) INPUT POWER (dBm) INPUT POWER (dBm) MAX4000 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.1GHz (MAX) MAX4001 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.1GHz (MAX) MAX4002 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.1GHz (MAX) 3 1.6 3 1.4 2 1.4 2 1.2 1 1.2 1 2 1.2 1 0 -1 TA = +25C -2 0.6 -3 0.4 -4 10 0.2 0.4 0.2 -40 -30 -20 -10 0.8 0 TA = -40C -40 -30 INPUT POWER (dBm) MAX4000 toc16 1.8 1.6 3 1.4 1.2 TA = +25C TA = -40C 0.2 -30 -20 -10 INPUT POWER (dBm) -20 -10 0 10 -4 20 0.2 0 -2 TA = -40C -3 -35 -25 -15 -5 5 15 -4 25 INPUT POWER (dBm) MAX4000 toc17 MAX4002 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.1GHz (UCSP) MAX4000 toc18 3 1.6 3 2 1.4 2 1.4 2 1 1.2 1 1.2 1 1.0 0 SET (V) 1.6 1.0 -1 0.8 -2 0.6 -3 0.4 -4 10 0.2 0 TA = +85C -1 TA = +25C 0.4 -40 0.4 TA = +25C 1.8 ERROR (dB) TA = +85C -50 -3 -1 4 0 1.0 0.6 0.6 MAX4001 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.1GHz (UCSP) 4 0.8 -2 TA = +85C INPUT POWER (dBm) MAX4000 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.1GHz (UCSP) 1.8 -1 4 0 1.0 0.8 TA = +25C TA = -40C -50 TA = +85C TA = -40C -40 -30 -20 -10 0 INPUT POWER (dBm) 10 SET (V) 0.6 0 1.0 ERROR (dB) 0.8 SET (V) 1.4 ERROR (dB) 3 SET (V) 1.6 1.6 TA = +85C MAX4000 toc15 1.8 1.8 1.0 MAX4000 toc14 4 4 ERROR (dB) MAX4000 toc13 1.8 SET (V) -20 0.8 4 -1 TA = +85C 0.6 TA = +25C -2 0.4 TA = -40C -3 -2 -3 -4 20 0.2 -35 -25 -15 -5 5 15 -4 25 INPUT POWER (dBm) _______________________________________________________________________________________ 5 ERROR (dB) -50 ERROR (dB) -4 -4 SET (V) -3 -3 -3 MAX4000/MAX4001/MAX4002 Typical Operating Characteristics (continued) Typical Operating Characteristics (continued) (VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified. All log conformance plots are normalized to their respective temperatures.) 1.4 2 1.4 1 1.0 0 TA = +85C 0.8 1.2 SET (V) -1 0 0.8 -2 0.2 -10 0 -3 0.4 -4 10 0.2 -40 -30 -20 -10 0 0 1.0 -1 0.8 -2 0.6 -1 -2 TA = -40C 10 -3 0.4 -4 20 0.2 -3 -35 -25 -15 -5 5 15 -4 25 INPUT POWER (dBm) INPUT POWER (dBm) MAX4000 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.9GHz (UCSP) MAX4001 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.9GHz (UCSP) MAX4002 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.9GHz (UCSP) 1.6 3 1.6 3 1.4 2 1.4 2 1.2 1 1.2 1 0 TA = +85C 0.8 -2 0.6 -3 0.4 -4 10 0.2 TA = -40C 0.6 TA = +25C 0.4 0.2 -50 -40 -30 -20 -10 0 1.0 0 0.8 -1 -2 0.6 -3 0.4 -4 20 0.2 0 TA = +85C TA = +25C TA = -40C -40 -30 -20 -10 0 10 TA = +85C -1 1.0 -1 TA = +25C -2 -3 TA = -40C -35 -25 -15 -5 5 15 -4 25 INPUT POWER (dBm) INPUT POWER (dBm) INPUT POWER (dBm) MAX4000 SET AND LOG CONFORMANCE vs. INPUT POWER AT 1.9GHz (MAX) MAX4001 SET AND LOG CONFORMANCE vs. INPUT POWER AT 1.9GHz (MAX) MAX4002 SET AND LOG CONFORMANCE vs. INPUT POWER AT 1.9GHz (MAX) MAX4000 toc25 1.8 TA = +85C 3 1.6 2 1.4 1 1.2 TA = +85C -1 SET (V) 0 1.0 ERROR (dB) TA = -40C 1.2 0.8 4 3 1.6 2 1.4 1 1.2 0 1.0 TA = +85C -2 0.6 -1 -2 0.6 TA = -40C TA = -40C 0.4 -3 0.4 0.2 -4 20 0.2 INPUT POWER (dBm) 0 -40 -30 -20 -10 0 INPUT POWER (dBm) 10 -1 0.6 -4 10 -10 0 TA = +85C TA = +25C -3 -20 1 0.8 0.2 -30 2 1.0 0.4 -40 4 3 TA = -40C TA = +25C TA = +25C -50 TA = +85C TA = +25C TA = -40C 0.8 MAX4000 toc27 1.8 TA = +25C TA = +25C 1.4 TA = +85C SET (V) 1.6 MAX4000 toc26 1.8 4 4 1 1.2 SET (V) 2 SET (V) 1.4 ERROR (dB) 3 0.8 MAX4000 toc24 1.8 1.6 1.0 MAX4000 toc23 4 1.8 ERROR (dB) MAX4000 toc22 4 6 1 INPUT POWER (dBm) 1.8 SET (V) 1.2 TA = -40C 0.4 -20 2 TA = +85C TA = +25C 0.6 TA = -40C -30 1.4 4 3 TA = +25C 0.6 -40 2 1 1.0 TA = +25C -50 1.6 ERROR (dB) SET (V) 1.2 TA = +85C 3 MAX4000 toc21 ERROR (dB) 1.6 1.8 ERROR (dB) 3 4 -2 TA = -40C -35 -25 -15 -5 5 INPUT POWER (dBm) _______________________________________________________________________________________ -3 15 -4 25 ERROR (dB) 1.6 MAX4000 toc20 SET (V) 1.8 ERROR (dB) 4 ERROR (dB) MAX4000 toc19 1.8 MAX4002 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.9GHz (MAX) MAX4001 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.9GHz (MAX) MAX4000 SET AND LOG CONFORMANCE vs. INPUT POWER AT 0.9GHz (MAX) SET (V) MAX4000/MAX4001/MAX4002 2.5GHz 45dB RF-Detecting Controllers 2.5GHz 45dB RF-Detecting Controllers (VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified. All log conformance plots are normalized to their respective temperatures.) TA = -40C 1.6 2 1.4 1 1.0 0 TA = +85C TA = +25C TA = -40C 1.2 1.0 1 1.2 0.6 -2 TA = -40C 0.8 -1 -2 0.6 -2 TA = -40C 0.4 -3 0.4 -4 10 0.2 -4 20 0.2 -20 1 -1 -3 -30 TA = -40C 0 0.2 -40 2 1.0 0.4 -50 3 TA = +25C TA = +25C 0.6 -10 0 -40 -30 -20 -10 0 10 TA = -40C -35 -25 -15 -5 -3 5 15 -4 25 INPUT POWER (dBm) INPUT POWER (dBm) INPUT POWER (dBm) MAX4000 SET AND LOG CONFORMANCE vs. INPUT POWER AT 2.5GHz (MAX) MAX4001 SET AND LOG CONFORMANCE vs. INPUT POWER AT 2.5GHz (MAX) MAX4002 SET AND LOG CONFORMANCE vs. INPUT POWER AT 2.5GHz (MAX) MAX4000 toc31 1.8 2 1.4 1 1.2 0 1.0 SET (V) TA = -40C ERROR (dB) 1.4 TA = +85C 0.4 0.2 -40 -30 -20 -10 MAX4000 toc33 1.8 TA = +85C 1.6 2 1.4 1 1.2 1 1.0 0 -1 TA = +25C 0 -2 0.6 0.4 -3 0.4 -4 10 0.2 -4 20 0.2 -30 -20 -10 0 10 3 2 TA = -40C -1 0.8 -3 -40 TA = +85C -2 TA = +25C -3 TA = -40C -35 -25 -15 -5 5 15 -4 25 INPUT POWER (dBm) INPUT POWER (dBm) INPUT POWER (dBm) MAX4000 SET AND LOG CONFORMANCE vs. INPUT POWER AT 2.5GHz (UCSP) MAX4001 SET AND LOG CONFORMANCE vs. INPUT POWER AT 2.5GHz (UCSP) MAX4002 SET AND LOG CONFORMANCE vs. INPUT POWER AT 2.5GHz (UCSP) MAX4000 toc34 1.8 TA = +85C 1.6 MAX4000 toc35 1.8 4 3 1.6 2 1.4 1 1.2 TA = +85C TA = +25C 1.2 1.0 0 0.8 -1 TA = +85C 0.6 -2 SET (V) TA = -40C ERROR (dB) TA = +25C 1.4 TA = -40C 0.8 TA = -40C 0.2 -50 -40 -30 -20 -10 INPUT POWER (dBm) 0 3 1.6 3 2 1.4 2 1 1.2 -2 0.6 TA = +25C 4 1 0 1.0 -1 0.8 TA = +85C 0.6 -2 TA = +25C TA = +25C 0.4 1.8 -1 TA = +85C MAX4000 toc36 4 0 1.0 4 3 0 1.0 TA = +85C TA = +25C TA = -40C TA = -40C -50 TA = -40C 0.6 -2 TA = +25C TA = +25C 0.8 -1 0.8 0.6 4 ERROR (dB) SET (V) 3 1.6 TA = +25C 1.2 MAX4000 toc32 1.8 4 TA = +85C TA = +85C 1.6 SET (V) 1.4 -3 0.4 -4 10 0.2 TA = -40C -40 -30 -20 -10 0 INPUT POWER (dBm) 10 -3 0.4 -4 20 0.2 ERROR (dB) TA = +25C SET (V) 1.6 2 0 TA = +85C 0.8 -1 3 TA = -40C -35 -25 -15 -5 5 -3 15 -4 25 INPUT POWER (dBm) _______________________________________________________________________________________ 7 ERROR (dB) 0.8 TA = +85C ERROR (dB) SET (V) SET (V) 1.2 3 4 TA = +85C ERROR (dB) TA = +25C 1.4 MAX4000 toc30 1.8 4 SET (V) 1.6 MAX4002 SET AND LOG CONFORMANCE vs. INPUT POWER AT 1.9GHz (UCSP) MAX4000 toc29 1.8 4 SET (V) TA = +85C ERROR (dB) MAX4000 toc28 1.8 MAX4001 SET AND LOG CONFORMANCE vs. INPUT POWER AT 1.9GHz (UCSP) ERROR (dB) MAX4000 SET AND LOG CONFORMANCE vs. INPUT POWER AT 1.9GHz (UCSP) MAX4000/MAX4001/MAX4002 Typical Operating Characteristics (continued) Typical Operating Characteristics (continued) (VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified. All log conformance plots are normalized to their respective temperatures.) MAX4001 LOG SLOPE vs. FREQUENCY (MAX) TA = +25C 28 TA = -40C 29 28 TA = +25C 27 26 TA = -40C 28 26 25 24 23 1.5 2.0 24 0 2.5 0.5 1.0 1.5 2.0 2.5 0 1.0 1.5 2.5 2.0 FREQUENCY (GHz) FREQUENCY (GHz) MAX4000 LOG SLOPE vs. FREQUENCY (UCSP) MAX4001 LOG SLOPE vs. FREQUENCY (UCSP) MAX4002 LOG SLOPE vs. FREQUENCY (UCSP) 26 28 TA = +85C 27 TA = +25C 26 31 TA = +85C TA = -40C 24 1.0 1.5 2.0 2.5 0 0.5 1.0 1.5 2.0 FREQUENCY (GHz) FREQUENCY (GHz) MAX4000 LOG SLOPE vs. VCC (MAX) MAX4001 LOG SLOPE vs. VCC (MAX) LOG SLOPE (mV/dB) 30 29 1.9GHz 28 27 0.9GHz 26 2.5GHz 31 30 29 1.9GHz 28 27 0.9GHz 26 0.1GHz 3.0 3.5 4.0 VCC (V) 4.5 5.0 5.5 1.5 2.0 2.5 34 2.5GHz 33 32 1.9GHz 31 30 29 28 0.1GHz 27 25 0.1GHz 24 24 1.0 26 25 25 0.5 MAX4002 LOG SLOPE vs. VCC (MAX) LOG SLOPE (mV/dB) 31 0 MAX4000 toc44 2.5GHz 2.5 FREQUENCY (GHz) 32 MAX4000 toc43 32 27 24 23 0.5 TA = -40C 28 25 24 TA = -40C TA = +25C 29 26 25 25 30 MAX4000 toc45 TA = +25C 29 MAX4000 toc42 30 LOG SLOPE (mV/dB) 28 27 31 LOG SLOPE (mV/dB) TA = +85C 32 MAX4000 toc41 32 MAX4000 toc40 29 2.5 0.5 FREQUENCY (GHz) 30 0 TA = -40C 27 24 1.0 TA = +25C 29 25 31 8 30 25 0.5 TA = +85C 31 TA = +85C 26 0 LOG SLOPE (mV/dB) 30 32 LOG SLOPE (mV/dB) 29 31 LOG SLOPE (mV/dB) LOG SLOPE (mV/dB) TA = +85C 33 MAX4000 toc38 30 27 32 MAX4000 toc37 31 MAX4002 LOG SLOPE vs. FREQUENCY (MAX) MAX4000 toc39 MAX4000 LOG SLOPE vs. FREQUENCY (MAX) LOG SLOPE (mV/dB) MAX4000/MAX4001/MAX4002 2.5GHz 45dB RF-Detecting Controllers 0.9GHz 24 2.5 3.0 3.5 4.0 VCC (V) 4.5 5.0 5.5 2.5 3.0 3.5 4.0 VCC (V) _______________________________________________________________________________________ 4.5 5.0 5.5 2.5GHz 45dB RF-Detecting Controllers (VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified. All log conformance plots are normalized to their respective temperatures.) MAX4001 LOG SLOPE vs. VCC (UCSP) 1.9GHz 27 31 0.1GHz 26 0.1GHz 3.0 3.5 4.0 4.5 5.0 1.9GHz 27 0.1GHz 25 0.9GHz 23 2.5 29 0.9GHz 0.9GHz 24 5.5 23 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 VCC (V) VCC (V) VCC (V) MAX4000 LOG INTERCEPT vs. FREQUENCY (MAX) MAX4001 LOG INTERCEPT vs. FREQUENCY (MAX) MAX4002 LOG INTERCEPT vs. FREQUENCY (MAX) -53 TA = +85C -54 TA = +25C -55 TA = -40C -56 -41 -57 TA = +85C -42 TA = +25C -43 -44 TA = -40C -45 -46 MAX4000 toc51 -40 LOG INTERCEPT (dBm) -52 -34 LOG INTERCEPT (dBm) -51 -32 MAX4000 toc50 -39 MAX4000 toc49 -50 TA = +85C -36 TA = +25C -38 -40 TA = -40C -42 -47 -58 -44 -48 -59 -49 0 0.5 1.0 1.5 2.0 2.5 -46 0 0.5 1.0 1.5 2.0 2.5 0 0.5 1.0 1.5 2.0 2.5 FREQUENCY (GHz) FREQUENCY (GHz) FREQUENCY (GHz) MAX4000 LOG INTERCEPT vs. FREQUENCY (UCSP) MAX4001 LOG INTERCEPT vs. FREQUENCY (UCSP) MAX4002 LOG INTERCEPT vs. FREQUENCY (UCSP) -57 -58 TA = +25C -59 -44 -46 -48 TA = +25C TA = +85C -50 -60 0 0.5 1.0 1.5 FREQUENCY (GHz) 2.0 2.5 -38 -40 TA = +25C -42 TA = -40C TA = +85C -52 -61 -36 -44 TA = -40C TA = +85C TA = -40C -34 LOG INTERCEPT (dB) -42 LOG INTERCEPT (dBm) -56 -32 MAX4000 toc54 -40 MAX4000 toc52 -55 MAX4000 toc53 LOG INTERCEPT (dBm) 1.9GHz 25 25 LOG INTERCEPT (dBm) 29 27 2.5GHz 31 LOG SLOPE (mV/dB) 29 28 2.5GHz LOG SLOPE (mV/dB) LOG SLOPE (mV/dB) 30 33 MAX4000 toc47 2.5GHz 31 33 MAX4000 toc46 32 MAX4002 LOG SLOPE vs. VCC (UCSP) MAX4000 toc48 MAX4000 LOG SLOPE vs. VCC (UCSP) -46 0 0.5 1.0 1.5 FREQUENCY (GHz) 2.0 2.5 0 0.5 1.0 1.5 2.0 2.5 FREQUENCY (GHz) _______________________________________________________________________________________ 9 MAX4000/MAX4001/MAX4002 Typical Operating Characteristics (continued) Typical Operating Characteristics (continued) (VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified. All log conformance plots are normalized to their respective temperatures.) LOG INTERCEPT (dBm) -52 -53 -54 0.1GHz -55 -56 1.9GHz -57 -40 -42 -44 1.9GHz -46 2.5GHz -37 -39 0.1GHz -41 1.9GHz -43 0.1GHz -45 -48 0.9GHz -59 0.9GHz 0.9GHz -47 -50 -60 3.0 3.5 4.0 4.5 5.0 2.5 5.5 3.0 3.5 4.0 4.5 5.0 2.5 5.5 3.0 3.5 4.0 4.5 VCC (V) VCC (V) MAX4000 LOG INTERCEPT vs. VCC (UCSP) MAX4001 LOG INTERCEPT vs. VCC (UCSP) MAX4002 LOG INTERCEPT vs. VCC (UCSP) 0.1GHz -58 0.9GHz -59 -34 -36 LOG INTERCEPT (dBm) -57 2.5GHz -44 -46 1.9GHz -48 2.5GHz -38 -40 0.1GHz -42 0.1GHz -60 1.9GHz -50 1.9GHz -44 0.9GHz 0.9GHz -61 -46 -52 3.0 3.5 4.0 4.5 5.0 5.5 2.5 3.0 3.5 4.0 4.5 5.0 3.5 4.0 4.5 5.0 VCC (V) MAX4000 INPUT IMPEDANCE vs. FREQUENCY (MAX) MAX4001 INPUT IMPEDANCE vs. FREQUENCY (MAX) MAX4002 INPUT IMPEDANCE vs. FREQUENCY (MAX) MAX4000 toc62 2500 -100 -500 -200 FREQUENCY (GHz) R JX 0.1 2144 -1205 0.9 959 -121 1.9 104 -36 2.5 47 -29 1500 -300 -400 1000 -500 -600 500 -600 500 R -700 -800 0 0.5 R 1.0 1.5 FREQUENCY (GHz) 2.0 2.5 -800 0 0.5 1.0 1.5 2.0 2.5 -300 -400 1000 -500 -600 500 R -700 0 -200 FREQUENCY (GHz) R JX 0.1 2309 -1137 0.9 943 -120 1.9 129 -36 2.5 30 -26 1500 0 -100 X 2000 RESISTANCE () 1000 REACTANCE () -400 RESISTANCE () -300 5.5 MAX4000 toc63 2500 0 -100 X 2000 -200 FREQUENCY (GHz) R JX 0.1 2100 -794 0.9 500 -91 1.9 52 -35 2.5 27 -366 1500 0 REACTANCE () X 2000 10 3.0 VCC (V) MAX4000 toc61 0 2.5 5.5 VCC (V) 2500 5.5 MAX4000 toc60 -42 LOG INTERCEPT (dBm) 2.5GHz -56 -40 MAX4000 toc58 -55 2.5 5.0 VCC (V) MAX4000 toc59 2.5 -700 -800 0 0 0.5 FREQUENCY (GHz) ______________________________________________________________________________________ 1.0 1.5 FREQUENCY (GHz) 2.0 2.5 REACTANCE () -58 LOG INTERCEPT (dBm) -35 LOG INTERCEPT (dBm) 2.5GHz MAX4000 toc58 -38 2.5GHz -33 MAX4000 toc56 -50 LOG INTERCEPT (dBm) -36 MAX4000 toc55 -49 -51 MAX4002 LOG INTERCEPT vs. VCC (MAX) MAX4001 LOG INTERCEPT vs. VCC (MAX) MAX4000 LOG INTERCEPT vs. VCC (MAX) RESISTANCE () MAX4000/MAX4001/MAX4002 2.5GHz 45dB RF-Detecting Controllers 2.5GHz 45dB RF-Detecting Controllers (VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified. All log conformance plots are normalized to their respective temperatures.) MAX4001 INPUT IMPEDANCE vs. FREQUENCY (UCSP) MAX4000 INPUT IMPEDANCE vs. FREQUENCY (UCSP) -100 X FREQUENCY (GHz) R JX 0.1 1916 -839 0.9 909 -125 1.9 228 -48 2.5 102 -29 -200 -300 -400 1000 -500 -200 FREQUENCY (GHz) R JX 0.1 1942 -927 0.9 1009 -136 1.9 314 -57 2.5 139 -37 1500 -300 -400 -500 -600 1000 -700 -600 R 500 -100 X RESISTANCE () 1500 0 2000 REACTANCE () RESISTANCE () 2000 MAX4000 toc65 2500 0 R 500 -800 -700 -900 -800 0 0.5 1.0 1.5 2.0 -1000 0 0 2.5 0.5 1.0 MAX4002 INPUT IMPEDANCE vs. FREQUENCY (UCSP) 7 -100 6 -200 -300 -400 -500 -600 1000 VCC = 5.5V -700 500 -800 R 0 0 0.5 1.0 1.5 2.0 SUPPLY CURRENT (mA) RESISTANCE () FREQUENCY (GHz) R JX 0.1 1961 -1137 0.9 1130 -120 1.9 315 -36 2.5 163 -26 0 REACTANCE () X 1500 5 4 3 2 1 1.2V -900 0 -1000 2.5 -1 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 SHDN (V) SHDN POWER-ON DELAY RESPONSE TIME SHDN RESPONSE TIME 1.5V/div MAX4000 toc69 MAX4000 toc68 FREQUENCY (GHz) SHDN 2.5 SUPPLY CURRENT vs. SHDN VOLTAGE MAX4000 toc66 2000 2.0 FREQUENCY (GHz) FREQUENCY (GHz) 2500 1.5 MAX4000 toc67 0 REACTANCE () MAX4000 toc64 2500 1.5V/div SHDN 5s OUT 500mV/div 2s/div OUT 500mV/div 2s/div ______________________________________________________________________________________ 11 MAX4000/MAX4001/MAX4002 Typical Operating Characteristics (continued) Typical Operating Characteristics (continued) (VCC = 3V, SHDN = VCC, TA = +25C, unless otherwise specified. All log conformance plots are normalized to their respective temperatures.) MAXIMUM OUT VOLTAGE MAIN OUTPUT NOISE SPECTRAL DENSITY vs. VCC BY LOAD CURRENT 5.5 MAX4000 toc71 10 9 8 7 6 5 MAX4000 toc70 5.0 0 4.5 OUT VOLTAGE (V) NOISE SPECTRAL DENSITY (nV/HZ) MAX4000/MAX4001/MAX4002 2.5GHz 45dB RF-Detecting Controllers 4 3 5mA 4.0 10mA 3.5 2 3.0 2.5 1 2.0 100 1k 10k 100k 1M 10M 2.5 3.0 FREQUENCY (Hz) 3.5 4.0 4.5 5.0 5.5 VCC (V) Pin Description PIN NAME FUNCTION MAX UCSP 1 A1 RFIN 2 A2 SHDN 3 A3 SET 4 B3 CLPF 5 C3 GND Ground 6 -- N.C. No Connection. Not internally connected. RF Input Shutdown. Connect to VCC for normal operation. Set-Point Input for Controller Mode Operation Lowpass Filter Connection. Connect external capacitor between CLPF and GND to set control-loop bandwidth. 7 C2 OUT Output to PA Gain-Control Pin 8 B1, C1 VCC Supply Voltage. VCC = 2.7V to 5.5V. Block Diagram OUTPUTENABLE DELAY SHDN VCC RFIN LOG DETECTOR gm BLOCK SET x1 V-I* OUT BUFFER MAX4000 MAX4001 MAX4002 CCLPF GND 12 ______________________________________________________________________________________ 2.5GHz 45dB RF-Detecting Controllers OUTPUT ENABLE DELAY SHDN VCC DET DET DET DET DET POWER AMPLIFIER gm + X1 OUT 50 CLPF RFIN 10dB 10dB 10dB RFIN MAX4000 VCC 10dB V-I LOWNOISE BANDGAP OFFSET COMP RF INPUT XX SET VCC SHDN DAC MAX4000 GND (PADDLE) OUT SET N.C. CLPF GND VCC 0.1F CF Figure 1. Functional Diagram Detailed Description The MAX4000/MAX4001/MAX4002 family of logarithmic amplifiers (log amps) is comprised of four main amplifier/limiter stages each with a small-signal gain of 10dB. The output stage of each amplifier is applied to a fullwave rectifier (detector). A detector stage also precedes the first gain stage. In total, five detectors each separated by 10dB, comprise the log amp strip. Figure 1 shows the functional diagram of the log amps. A portion of the PA output power is coupled to RFIN of the log amp controller, and is applied to the log amp strip. Each detector cell outputs a rectified current and all cell currents are summed and form a logarithmic output. The detected output is applied to a high-gain gm stage, which is buffered and then applied to OUT. OUT is applied to the gain-control pin of the PA to close the control loop. The voltage applied to SET determines the output power of the PA in the control loop. The voltage applied to SET relates to an input power level determined by the log amp detector characteristics. Extrapolating a straight-line fit of the graph of SET vs. RFIN provides the logarithmic intercept. Logarithmic slope, the amount SET changes for each dB change of RF input, is generally independent of waveform or termination impedance. The MAX4000/MAX4001/ MAX4002 slope at low frequencies is about 25mV/dB. Variance in temperature and supply voltage does not alter the slope significantly as shown in the Typical Operating Characteristics. The MAX4000/MAX4001/MAX4002 are specifically designed for use in PA control applications. In a control loop, the output starts at approximately 2.9V (with supply voltage of 3V) for the minimum input signal and falls to a value close to ground at the maximum input. With a portion of the PA output power coupled to RFIN, apply a voltage to SET and connect OUT to the gain-control pin of the PA to control its output power. An external Figure 2. Controller Mode Application Circuit Block capacitor from the CLPF pin to ground sets the bandwidth of the PA control loop. Transfer Function Logarithmic slope and intercept determine the transfer function of the MAX4000/MAX4001/MAX4002 family of log amps. The change in SET voltage per dB change in RF input defines the logarithmic slope. Therefore, a 250mV change at SET results in a 10dB change at RFIN. The Log-Conformance plots (see Typical Operating Characteristics) show the dynamic range of the log amp family. Dynamic range is the range for which the error remains within a band of 1dB. The intercept is defined as the point where the linear response, when extrapolated, intersects the y-axis of the Log-Conformance plot. Using these parameters, the input power can be calculated at any SET voltage level within the specified input range with the following equation: SET RFIN = + IP SLOPE where SET is the set-point voltage, SLOPE is the logarithmic slope (V/dB), RFIN is in either dBm or dBV and IP is the logarithmic intercept point utilizing the same units as RFIN. Applications Information Controller Mode Figure 2 provides a circuit example of the MAX4000/ MAX4001/MAX4002 configured as a controller. The MAX4000/MAX4001/MAX4002 require a 2.7V to 5.5V supply voltage. Place a 0.1F low-ESR, surface-mount ceramic capacitor close to VCC to decouple the supply. Electrically isolate the RF input from other pins (especially SET) to maximize performance at high frequencies (especially at the high-power levels of the MAX4002). The MAX4000 has an internal input-coupling capacitor ______________________________________________________________________________________ 13 MAX4000/MAX4001/MAX4002 ANTENNA and does not require external AC-coupling. Achieve 50 input matching by connecting a 50 resistor between RFIN and ground. See the Typical Operating Characteristics section for a plot of Input Impedance vs. Frequency. See the Additional Input Coupling section for other coupling methods. SHDN and Power-On The MAX4000/MAX4001/MAX4002 can be placed in shutdown by pulling SHDN to ground. SHDN reduces supply current to typically 13A. A graph of SHDN Response is included in the Typical Operating Characteristics section. Connect SHDN and V CC together for continuous on-operation. Power Convention Expressing power in dBm, decibels above 1mW, is the most common convention in RF systems. Log amp input levels specified in terms of power are a result of following common convention. Note that input power does not refer to power, but rather to input voltage relative to a 50 impedance. Use of dBV, decibels with respect to a 1VRMS sine wave, yields a less ambiguous result. The dBV convention has its own pitfalls in that log amp response is also dependent on waveform. A complex input such as CDMA does not have the exact same output response as the sinusoidal signal. The MAX4000/MAX4001/MAX4002 performance specifications are in both dBV and dBm, with equivalent dBm levels for a 50 environment. To convert dBV values into dBm in a 50 network, add 13dB. 14 MAX4000 fig03 GAIN 60 180 135 CF = 2000pF 40 90 20 CF = 200pF CF = 200pF 0 45 0 -20 -45 -40 -90 CF = 2000pF -60 -135 -80 PHASE -100 10 100 1k PHASE (DEGREES) The MAX4000/MAX4001/MAX4002 log amps function as both the detector and controller in power-control loops. Use a directional coupler to couple a portion of the PA's output power to the log amp's RF input. In applications requiring dual-mode operation where there are two PAs and two directional couplers, passively combine the outputs of the directional couplers before applying to the log amp. Apply a set-point voltage to SET from a controlling source (usually a DAC). OUT, which drives the automatic gain-control pin of the PA, corrects any inequality between the RF input level and the corresponding set-point level. This is valid assuming the gain control of the variable gain element is positive, such that increasing OUT voltage increases gain. OUT voltage can range from 150mV to within 250mV of the supply rail while sourcing 10mA. Use a suitable load resistor between OUT and GND for PA control inputs that source current. The Typical Operating Characteristics section has a plot of the sourcing capabilities and output swing of OUT. GAIN AND PHASE vs. FREQUENCY 80 GAIN (dB) MAX4000/MAX4001/MAX4002 2.5GHz 45dB RF-Detecting Controllers 10k 100k 1M -180 -225 10M 100M FREQUENCY (Hz) Figure 3. Gain and Phase vs. Frequency Graph Filter Capacitor and Transient Response In general, the choice of filter capacitor only partially determines the time-domain response of a PA control loop. However, some simple conventions can be applied to affect transient response. A large filter capacitor, CF, dominates time-domain response, but the loop bandwidth remains a factor of the PA gaincontrol range. The bandwidth is maximized at power outputs near the center of the PA's range, and minimized at the low and high power levels, where the slope of the gain-control curve is lowest. A smaller valued CF results in an increased loop bandwidth inversely proportional to the capacitor value. Inherent phase lag in the PA's control path, usually caused by parasitics at the OUT pin, ultimately results in the addition of complex poles in the AC loop equation. To avoid this secondary effect, experimentally determine the lowest usable CF for the power amplifier of interest. This requires full consideration to the intricacies of the PA control function. The worst-case condition, where the PA output is smallest (gain function is steepest), should be used because the PA control function is typically nonlinear. An additional zero can be added to improve loop dynamics by placing a resistor in series with CF. See Figure 3 for the gain and phase response for different CF values. Additional Input Coupling There are three common methods for input coupling: broadband resistive, narrowband reactive, and series attenuation. A broadband resistive match is implemented by connecting a resistor to ground at RFIN as shown in Figure 4a. A 50 resistor (use other values for different input impedances) in this configuration in parallel with the input impedance of the MAX4000 presents an input ______________________________________________________________________________________ 2.5GHz 45dB RF-Detecting Controllers For high frequencies, use narrowband reactive coupling. This implementation is shown in Figure 4b. The matching components are drawn as reactances since these can be either capacitors or inductors depending on the input impedance at the desired frequency and available standard value components. A Smith Chart is used to obtain the input impedance at the desired frequency and then matching reactive components are chosen. Table 1 provides standard component values at some common frequencies for the MAX4001. Note that these inductors must have a high SRF (self-resonant frequency), much higher than the intended frequency of operation to implement this matching scheme. Device sensitivity is increased by the use of a reactive matching network, because a voltage gain occurs before being applied to RFIN. The associated gain is calculated with the following equation: Voltage GaindB = 20 log10 MAX4000 MAX4001 MAX4002 50 SOURCE CC** RFIN 50 C C* CIN RS 50 VCC *MAX4000 ONLY INTERNALLY COUPLED **MAX4001/MAX4002 REQUIRE EXTERNAL COUPLING Figure 4a. Broadband Resistive Matching MAX4000 MAX4001 MAX4002 50 SOURCE 50 CC** RFIN jX1 R2 R1 C C* CIN jX2 where R1 is the source impedance to which the device is being matched, and R2 is the input resistance of the device. The gain is the best-case scenario for a perfect match. However, component tolerance and standard value choice often result in a reduced gain. Figure 4c demonstrates series attenuation coupling. This method is intended for use in applications where the RF input signal is greater than the input range of the device. The input signal is thus resistively divided by the use of a series resistor connected to the RF source. Since the MAX4000/MAX4001/MAX4002 log amps offer a wide selection of RF input ranges, series attenuation coupling is not needed for typical applications. jX1 (nH) jX2 (nH) VOLTAGE GAIN (dB) 0.9 38 47 12.8 1.9 4.4 4.7 3.2 2.5 -- 1.8 -0.3 RIN VCC *MAX4000 ONLY INTERNALLY COUPLED **MAX4001/MAX4002 REQUIRE EXTERNAL COUPLING Figure 4b. Narrowband Reactive Matching MAX4000 MAX4001 MAX4002 STRIPLINE RATTN CC** RFIN C C* Table 1. Suggested Components for MAX4001 Reactive Matching Network FREQUENCY (GHz) RIN CIN RIN VCC *MAX4000 ONLY INTERNALLY COUPLED **MAX4001/MAX4002 REQUIRE EXTERNAL COUPLING Figure 4c. Series Attenuation Network ______________________________________________________________________________________ 15 MAX4000/MAX4001/MAX4002 impedance of approximately 50. See the Typical Operating Characteristics for the input impedance plot to determine the required external termination at the frequency of interest. The MAX4001/MAX4002 require an additional external coupling capacitor in series with the RF input. As the operating frequency increases over 2GHz, input impedance is reduced, resulting in the need for a larger-valued shunt resistor. Use a Smith Chart for calculating the ideal shunt resistor value. MAX4000/MAX4001/MAX4002 2.5GHz 45dB RF-Detecting Controllers Waveform Considerations UCSP Reliability The MAX4000/MAX4001/MAX4002 family of log amps respond to voltage, not power, even though input levels are specified in dBm. It is important to realize that input signals with identical RMS power but unique waveforms results in different log amp outputs. Differing signal waveforms result in either an upward or downward shift in the logarithmic intercept. However, the logarithmic slope remains the same. The UCSP represents a unique package that greatly reduces board space compared to other packages. UCSP reliability is integrally linked to the user's assembly methods, circuit board material, and usage environment. The user should closely review these areas when considering use of a UCSP. This form factor may not perform equally to a packaged product through traditional mechanical reliability tests. Performance through operating life test and moisture resistance remains uncompromised as it is primarily determined by the wafer fabrication process. Mechanical stress performance is a greater consideration for a UCSP. UCSP solder joint contact integrity must be considered since the package is attached through direct solder contact to the user's PCB. Testing done to characterize the UCSP reliability performance shows that it is capable of performing reliably through environmental stresses. Results of environmental stress tests and additional usage data and recommendations are detailed in the UCSP application note, which can be found on Maxim's website, www.maxim-ic.com. Layout Considerations As with any RF circuit, the layout of the MAX4000/ MAX4001/MAX4002 circuits affects performance. Use a short 50 line at the input with multiple ground vias along the length of the line. The input capacitor and resistor should both be placed as close to the IC as possible. VCC should be bypassed as close as possible to the IC with multiple vias connecting the capacitor to the ground plane. It is recommended that good RF components be chosen for the desired operating frequency range. Electrically isolate RF input from other pins (especially SET) to maximize performance at high frequencies (especially at the high power levels of the MAX4002). Chip Information Pin Configurations TRANSISTOR COUNT: 358 TOP VIEW PROCESS: Bipolar TOP VIEW (BUMPS ON BOTTOM) RFIN 1 8 SHDN 2 7 OUT SET 3 6 N.C. CLPF 4 5 GND MAX4000 MAX4001 MAX4002 VCC MAX 1 2 3 A RFIN SHDN SET B VCC MAX4000 MAX4001 MAX4002 CLPF C VCC OUT GND UCSP 16 ______________________________________________________________________________________ 2.5GHz 45dB RF-Detecting Controllers 9LUCSP, 3x3.EPS PACKAGE OUTLINE, 3x3 UCSP 21-0093 L 1 1 ______________________________________________________________________________________ 17 MAX4000/MAX4001/MAX4002 Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 4X S 8 E O0.500.1 8 INCHES DIM A A1 A2 b H c D e E H 0.60.1 1 L 1 0.60.1 S BOTTOM VIEW D MIN 0.002 0.030 MAX 0.043 0.006 0.037 0.014 0.010 0.007 0.005 0.120 0.116 0.0256 BSC 0.120 0.116 0.198 0.188 0.026 0.016 6 0 0.0207 BSC 8LUMAXD.EPS MAX4000/MAX4001/MAX4002 2.5GHz 45dB RF-Detecting Controllers MILLIMETERS MAX MIN 0.05 0.75 1.10 0.15 0.95 0.25 0.36 0.13 0.18 2.95 3.05 0.65 BSC 2.95 3.05 5.03 4.78 0.66 0.41 0 6 0.5250 BSC TOP VIEW A1 A2 e FRONT VIEW A c b L SIDE VIEW PROPRIETARY INFORMATION TITLE: PACKAGE OUTLINE, 8L uMAX/uSOP APPROVAL DOCUMENT CONTROL NO. 21-0036 18 ______________________________________________________________________________________ REV. J 1 1 2.5GHz 45dB RF-Detecting Controllers REVISION NUMBER REVISION DATE DESCRIPTION PAGES CHANGED 1, 4-13, 16 1 7/02 -- 2 12/07 Insertion/correction of figures and text changes. -- Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 19 (c) 2007 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc. MAX4000/MAX4001/MAX4002 Revision History