19-1466; Rev 0; 6/99 EVALUATION KIT MANUALFOLLOWS DATA SHEET500MHz to 2500MHzVCO Buffer AmplifiersMAX2472/MAX2473General DescriptionFeatures The MAX2472/MAX2473 are flexible, wideband, high- ♦ +2.7V to +5.5V Supply Range reverse-isolation buffer amplifiers. The MAX2472 has dual open-collector outputs capable of delivering -5dBm into ♦ 500MHz to 2500MHz Input Frequency Range 50Ω while maintaining harmonic suppression below ♦ High Reverse Isolation: 49dB at 900MHz -25dBc. The MAX2473 has a single open-collector output with a bias control pin to vary output power from -10dBm ♦ Dual Open-Collector Outputs (MAX2472) to -2dBm while maintaining harmonic suppression below ♦ Adjustable -10dBm to -2dBm Output Power -25dBc. The MAX2472/MAX2473’s combination of high Control (MAX2473) reverse isolation and low supply current makes them ideal for applications requiring high performance with low ♦ High Input Impedance: >250 Ω at 900MHz power. They feature high input impedance and open-col- ♦ Ultra-Small SOT23-6 Package lector outputs for maximum flexibility, enabling them to be used with a variety of oscillator topologies. Both the MAX2472 and MAX2473 operate from a single Ordering Information +2.7V to +5.5V supply. With VCC = +3.0V and -25dBm input power, the MAX2472 consumes 5.2mA, while the TEMP.PIN-SOTPARTRANGEPACKAGETOP MARK MAX2473 consumes only 2.7mA. Both devices are avail- able in a tiny 6-pin SOT23 package requiring minimal MAX2472 EUT-T -40°C to +85°C 6 SOT23-6 AAAZ board space. MAX2473 EUT-T -40°C to +85°C 6 SOT23-6 AABA ApplicationsFunctional Diagrams Cellular and PCS Mobile Phones Private Mobile Radios VCC ISM-Band Applications BIAS IF/RF Oscillators OUT2 General-Purpose Buffers/Amplifiers MAX2472 IN Typical Operating Circuits appear at end of data sheet. OUT1 GND GND Pin Configuration VCC BIAS TOP VIEW BIAS OUT1 (OUT) 1 6 VCC MAX2473 MAX2472 GND 2 5 GND MAX2473 IN OUT OUT2 (BIAS) 3 4 IN GND GND SOT23-6 ( ) ARE FOR MAX2473. ________________________________________________________________ Maxim Integrated Products1For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769.