MAX2642/MAX2643 19-1682 Rev 0 4/00 900MHz SiGe, High IP3, Low-Noise Amplifiers General Description Features The MAX2642/MAX2643 low-cost, high third-order inter- Wide Frequency Range: 800MHz to 1000MHz cept point (IP3), low-noise amplifiers (LNAs) are High Output IP3 and Adjustable designed for applications in cellular, ISM, SMR, and +17dBm at 5.3mA PMR systems. They feature a programmable bias, allowing the IP3 and supply current to be optimized for +7dBm at 2.8mA specific applications. These LNAs provide up to 0dBm Low Noise Figure: 1.3dB at 900MHz input IP3 while maintaining a low noise figure of 1.3dB. 13dB Attenuation Step (MAX2642) The gain for these devices is typically 17dB. The MAX2642 also features a 13dB attenuation step, which On-Chip Output Matching extends the LNAs dynamic range. Both devices feature Low-Power Shutdown Mode a shutdown mode that minimizes power consumption. On-chip output matching saves board space by reduc- +2.7V to +5.5V Single-Supply Operation ing the number of external components. Ultra-Small SC70-6 Package The MAX2642/MAX2643 are designed on a low-noise, advanced silicon-germanium (SiGe) process technolo- gy. They operate from a +2.7V to +5.5V single supply and are available in the ultra-small 6-pin SC70 package. Ordering Information Applications 800MHz/900MHz Cellular Phones PIN- TOP PART TEMP. RANGE PACKAGE MARK 900MHz Cordless Phones MAX2642EXT-T -40C to +85C 6 SC70-6 AAC 868MHz/900MHz ISM-Band Wireless Data MAX2643EXT-T -40C to +85C 6 SC70-6 AAD PMR/SMR/LMR Typical Operating Circuit Pin Configuration V CC 47pF MAX2642 TOP VIEW MAX2643 V CC LOW GAIN R (ENABLE) BIAS 510 BIAS16 RFOUT BIAS BIAS HIGH GAIN (SHUTDOWN) MAX2642 GND 2 5 GND MAX2643 33k L1 (10k) 8.7nH RFIN34 V RFIN RFOUT RF CC RF OUTPUT INPUT C1 3.3pF SC70-6 GND ( ) ARE FOR MAX2643. Maxim Integrated Products 1 For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. EVALUATION KIT MANUAL FOLLOWS DATA SHEET900MHz SiGe, High IP3, Low-Noise Amplifiers ABSOLUTE MAXIMUM RATINGS V to GND..............................................................-0.3V to +6V Maximum Junction Temperature .....................................+150C CC RFOUT to GND...........................................-0.3V to (V + 0.3V) Continuous Power Dissipation (T = +70C) CC A RFIN to GND ..................................................................0 to 0.9V SC70-6 (derate 3.1mW/C above +70C)...................245mW RFIN Power (50 source) ................................................+5dBm Storage Temperature Range .............................-65C to +150C BIAS to GND................................................................0 to +0.3V Lead Temperature (soldering, 10s) .................................+300C Operating Temperature Range ...........................-40C to +85C 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. DC ELECTRICAL CHARACTERISTICSMAX2642 (V = +2.7V to +5.5V, T = -40C to +85C, no RF signal applied, RFIN and RFOUT are AC-coupled and terminated to 50 , high- CC A gain mode. Typical values are at V = 3.0V, T = +25C, unless otherwise noted.) (Notes 1, 2, 3) CC A PARAMETER CONDITIONS MIN TYP MAX UNITS Supply Voltage 2.7 5.5 V High-gain mode, R = 510 , T = +25C 5.3 6.7 BIAS A R = 510 , T = -40C to +85C 7.5 BIAS A Operating Supply Current R = 806 3.6 mA BIAS R = 1.1k 2.8 BIAS Low-gain mode, R = 510 , T = 25C 5.9 BIAS A Shutdown Supply Current BIAS = unconnected (see Applications Information) 0.2 mA High-gain mode (Note 4) 0.6 Gain Control Voltage Input V Low-gain mode (Note 5) 2.0 High-gain mode (Note 6) -10 0 Gain Control Input Current A Low-gain mode (Note 7) 0 50 DC ELECTRICAL CHARACTERISTICSMAX2643 (V = +2.7V to +5.5V, T = -40C to +85C, no RF signal applied, RFIN and RFOUT are AC-coupled and terminated to 50 . Typical CC A values are at V = 3.0V, T = +25C, unless otherwise noted.) (Notes 1, 8, 9) CC A PARAMETER CONDITIONS MIN TYP MAX UNITS Supply Voltage 2.7 5.5 V R = 510 , T = +25C 5.1 6.5 BIAS A R = 510 , T = -40C to +85C 7.3 BIAS A Operating Supply Current mA R = 806 3.4 BIAS R = 1.1k 2.6 BIAS Shutdown Supply Current Shutdown mode (see Applications Information) 0.2 10 A Normal operation (Note 10) 2.0 Shutdown Control Input Voltage V Shutdown mode (Note 11) 0.6 Normal operation (Note 7) 0 10 Shutdown Control Input Current A Shutdown mode (Note 6) -5 5 2 MAX2642/MAX2643