EVALUATION KIT AVAILABLE MAX2680/MAX2681/ 400MHz to 2.5GHz, Low-Noise, MAX2682 SiGe Downconverter Mixers General Description Features The MAX2680/MAX2681/MAX2682 miniature, low-cost, 400MHz to 2.5GHz Operation low-noise downconverter mixers are designed for low- +2.7V to +5.5V Single-Supply Operation voltage operation and are ideal for use in portable com- Low Noise Figure: 6.3dB at 900MHz (MAX2680) munications equipment. Signals at the RF input port are mixed with signals at the local oscillator (LO) port using High Input Third-Order Intercept Point (IIP3 at 2450MHz) a double-balanced mixer. These downconverter mixers operate with RF input frequencies between 400MHz and -6.9dBm at 5.0mA (MAX2680) +1.0dBm at 8.7mA (MAX2681) 2500MHz, and downconvert to IF output frequencies between 10MHz and 500MHz. +3.2dBm at 15.0mA (MAX2682) The MAX2680/MAX2681/MAX2682 operate from a single < 0.1A Low-Power Shutdown Mode +2.7V to +5.5V supply, allowing them to be powered Ultra-Small Surface-Mount Packaging directly from a 3-cell NiCd or a 1-cell Lithium battery. These devices offer a wide range of supply currents and input intercept (IIP3) levels to optimize system perfor- mance. Additionally, each device features a low-power shutdown mode in which it typically draws less than 0.1A of supply current. Consult the Selector Guide for various combinations of IIP3 and supply current. The MAX2680/MAX2681/MAX2682 are manufactured on a high-frequency, low-noise, advanced silicon-germanium process and are offered in the space-saving 6-pin SOT23 package. Ordering Information Applications PIN- SOT 400MHz/900MHz/2.4GHz ISM-Band Radios PART TEMP RANGE PACKAGE TOP MARK Personal Communications Systems (PCS) MAX2680EUT-T -40C to +85C 6 SOT23 AAAR Cellular and Cordless Phones MAX2681EUT-T -40C to +85C 6 SOT23 AAAS Wireless Local Loop IEEE-802.11 and Wireless Data MAX2682EUT-T -40C to +85C 6 SOT23 AAAT Selector Guide FREQUENCY 900MHz 1950MHz 2450MHz I CC PART (mA) IIP3 NF GAIN IIP3 NF GAIN IIP3 NF GAIN (dBm) (dB) (dB) (dBm) (dB) (dB) (dBm) (dB) (dB) MAX2680 5.0 -12.9 6.3 11.6 -8.2 8.3 7.6 -6.9 11.7 7.0 MAX2681 8.7 -6.1 7.0 14.2 +0.5 11.1 8.4 +1.0 12.7 7.7 MAX2682 15.0 -1.8 6.5 14.7 +4.4 10.2 10.4 +3.2 13.4 7.9 Typical Operating Circuit appears at end of data sheet. 19-4786 Rev 2 8/03MAX2680/MAX2681/ 400MHz to 2.5GHz, Low-Noise, MAX2682 SiGe Downconverter Mixers Absolute Maximum Ratings V to GND .........................................................-0.3V to +6.0V Continuous Power Dissipation (T = +70C) CC A RFIN Input Power (50 source) .....................................+10dBm SOT23 (derate 8.7mW/C above +70C) ....................696mW LO Input Power (50 source) ........................................+10dBm Operating Temperature Range ........................... -40C to +85C SHDN, IFOUT, RFIN to GND ................... -0.3V to (V + 0.3V) Junction Temperature ......................................................+150C CC LO to GND.......................................(V - 1V) to (V + 0.3V) Storage Temperature Range ............................ -65C to +160C CC CC 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. CAUTION ESD SENSITIVE DEVICE DC Electrical Characteristics (V = +2.7V to +5.5V, SHDN = +2V, T = T to T unless otherwise noted. Typical values are at V = +3V and T = +25C. CC A MIN MAX CC A Minimum and maximum values are guaranteed over temperature by design and characterization.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS MAX2680 5.0 7.7 Operating Supply Current I MAX2681 8.7 12.7 mA CC MAX2682 15.0 21.8 Shutdown Supply Current I SHDN = 0.5V 0.05 A CC Shutdown Input Voltage High V 2.0 V IH Shutdown Input Voltage Low V 0.5 V IL Shutdown Input Bias Current I 0 < SHDN < V 0.2 A SHDN CC AC Electrical Characteristics (MAX2680/1/2 EV Kit, V = SHDN = +3.0V, T = +25C, unless otherwise noted. RFIN and IFOUT matched to 50. P = -5dBm, CC A LO P = -25dBm.) RFIN PARAMETER CONDITIONS MIN TYP MAX UNITS MAX2680 RF Frequency Range (Notes 1, 2) 400 2500 MHz LO Frequency Range (Notes 1, 2) 400 2500 MHz IF Frequency Range (Notes 1, 2) 10 500 MHz f = 400MHz, f = 445MHz, f = 45MHz 7.3 RF LO IF f = 900MHz, f = 970MHz, f = 70MHz 11.6 RF LO IF Conversion Power Gain dB f = 1950MHz, f = 1880MHz, f = 70MHz (Note 1) 5.7 7.6 8.6 RF LO IF f = 2450MHz, f = 2210MHz, f = 240MHz 7.0 RF LO IF f = 1950MHz, f = 1880MHz, f = 70MHz, RF LO IF Gain Variation Over Temperature 1.9 2.4 dB T = T to T (Note 1) A MIN MAX f = 900MHz, 901MHz, f = 970MHz, f = 70MHz -12.9 RF LO IF Input Third-Order Intercept Point f = 1950MHz, 1951MHz, f = 1880MHz, f = 70MHz -8.2 dBm RF LO IF (Note 3) f = 2450MHz, 2451MHz, f = 2210MHz, f = 240MHz -6.9 RF LO IF f = 900MHz, f = 970MHz, f = 70MHz 6.3 RF LO IF Noise Figure (Single Sideband) f = 1950MHz, f = 2020MHz, f = 70MHz 8.3 dB RF LO IF f = 2450MHz, f = 2210MHz, f = 240MHz 11.7 RF LO IF LO Input VSWR 50 source impedance 1.5:1 LO Leakage at IFOUT Port f = 1880MHz -22 dBm LO Maxim Integrated 2 www.maximintegrated.com