MA4AGSW1 SPST Reflective AlGaAs PIN Diode Switch Rev. V5 FEATURES Ultra Broad Bandwidth : 50 MHz to 50 GHz Functional Bandwidth : 50 MHz to 70 GHz 0.3 dB Insertion Loss 46 dB Isolation at 50 GHz Low Current consumption -5V for low loss state +10mA for Isolation state M/A-COM Tech’s unique AlGaAs hetero-junction anode technology Silicon Nitride Passivation Polymer Scratch protection RoHS Compliant* and 260°C Reflow Compatible DESCRIPTION The MA4AGSW1 is an Aluminum-Gallium-Arsenide, single pole, single throw (SPST), PIN diode switch. The switch features enhanced AlGaAs anodes which are formed using M/A-COM Tech’s patented heterojunction technology. This technology produces a switch with less loss than conventional GaAs processes. As much as a 0.3 dB reduction in insertion loss can be realized at 50GHz. These devices are fabricated on an OMCVD epitaxial wafer using a process designed for high device uniformity and extremely low parasitics. The diodes themselves exhibit low series resistance, low capacitance, and fast switching speed. They are fully passivated with silicon nitride and have an additional polymer layer for scratch protection. The protective coating prevents damage to the diode junction and anode air-bridges during handling and assembly. Off chip bias circuitry is required. Yellow areas indicate bond pads J2 J1 Absolute Maximum Ratings @ TAMB = +25°C Parameter Operating Temperature Maximum Rating -55°C to +125°C Storage Temperature -55°C to +150°C Incident C.W. RF Power +23dBm C.W. APPLICATIONS Breakdown Voltage 25V The high electron mobility of AlGaAs and the low capacitance of the PIN diodes makes this switch ideal for fast switching, high frequency, multi-throw switch designs. These AlGaAs PIN switches are use in switching arrays for radar systems, radiometers, test equipment and other multi-assembly components. Bias Current ± 25mA Junction Temperature +150°C Maximum combined operating conditions for RF Power, D.C. bias, and temperature: +23 dBm C.W. @ 10 mA (per diode) @ +85°C. * Restrictions on Hazardous Substances, European Union Directive 2002/95/EC. 1 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. MA4AGSW1 SPST Reflective AlGaAs PIN Diode Switch Rev. V5 Electrical Specifications @ TAMB = 25°C (On-wafer measurements) PARAMETER FREQUENCY BAND MIN TYP MAX UNITS INSERTION LOSS @ -5V 0.05 - 18GHz 18 - 50GHz ----- 0.2 0.3 0.3 0.6 dB dB ISOLATION @ +10mA 0.05 - 18GHz 18 - 50GHz 20 40 22 46 ----- dB dB INPUT RETURN LOSS @ -5V 0.05 - 18GHz 18 - 50GHz ----- 30 16 ----- dB dB OUTPUT RETURN LOSS @ -5V 0.05 - 18GHz 18 - 50GHz ----- 30 16 ----- dB dB SWITCHING SPEED* ( 10 % - 90 % RF VOLTAGE ) 10GHZ --- 10 --- nS *Note: Typical switching speed is measured from 10% to 90% of the detected RF voltage driven by a TTL compatible driver. Driver output parallel RC network uses a capacitor between 390 pF - 560 pF and a resistor between 150 - 220 Ohms to achieve 10 ns rise and fall times. 2 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. MA4AGSW1 SPST Reflective AlGaAs PIN Diode Switch Rev. V5 Typical RF Performance (Probed on Wafer) INSERTION LOSS @ -5 V 0 IL ( dB ) -0.1 -0.2 -0.3 -0.4 -0.5 0.00 10.00 20.00 30.00 40.00 50.00 40.00 50.00 FREQUENCY ( GHz ) ISOLATION @ +10 mA 0 ISOL ( dB ) -10 -20 -30 -40 -50 -60 0.00 10.00 20.00 30.00 FREQUENCY ( GHz ) J2 3 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. MA4AGSW1 SPST Reflective AlGaAs PIN Diode Switch Rev. V5 Typical RF Performance (Probed on wafer) INPUT RETURN LOSS @ -5 V 0 IRL ( dB ) -10 -20 -30 -40 -50 0.00 10.00 20.00 30.00 40.00 50.00 40.00 50.00 FREQUENCY ( GHz ) OUTPUT RETURN LOSS @ -5 V 0 ORL ( dB ) -10 -20 -30 -40 -50 0.00 10.00 20.00 30.00 FREQUENCY ( GHz ) 4 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. MA4AGSW1 SPST Reflective AlGaAs PIN Diode Switch Rev. V5 Operation of the MA4AGSW1 Switch The application of 0V or a negative DC voltage to either J1 or J2 provides insertion loss for the MA4AGSW1 SPST reflective switch. Isolation is achieved with +10 mA total D.C. current. The forward bias voltage at the diode bias node is typically 1.4 volts for supply currents up to +30 mA and will not exceed 1.6 volts. The backside area of the die is the RF and DC return ground plane. The bias network design should yield >30 dB RF to DC isolation. Available for use in conjunction with M/A-COM Tech’s line of AlGaAs switches are two, fully integrated, broadband, monolithic, bias networks which may be used as an alternative to the suggested individual component bias network shown below. Refer to datasheets for the MA4BN1840-1 and MA4BN1840-2 for additional information. The lowest insertion loss, P1dB, IP3, and switching speed is achieved by applying a minimum value of | -2V | at D.C. Bias node, which is achievable with a standard, ± 5V TTL Controlled PIN Diode Driver. MA4AGSW1 Schematic with 2-18 GHz Bias Network Note: The bias network can be connected to either J1 or J2 TYPICAL DRIVER CONNECTIONS CONTROL LEVEL (DC CURRENT) RF OUTPUT STATE J1 or J2 J1-J2 -5V Low Loss +10mA Isolation 5 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. MA4AGSW1 SPST Reflective AlGaAs PIN Diode Switch Rev. V5 Chip Dimensions and Bonding Pad Locations (In Yellow) DIM A B C D E Pads X-Y Min. Mils Max. Millimeters Min. Max. 23.5 14.25 28.50 20.50 3.50 3.50 25.5 15.25 30.50 21.00 4.50 4.50 .597 .362 .724 .521 .089 .089 .648 .387 .775 .533 .114 .114 6 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. MA4AGSW1 SPST Reflective AlGaAs PIN Diode Switch Rev. V5 ASSEMBLY INSTRUCTIONS CLEANLINESS These chips should be handled in a clean environment. STATIC SENSITIVITY These Devices are considered ESD Class 0 HBM. Proper ESD techniques should be used when handling these devices. GENERAL HANDLING The protective polymer coating on the active areas of the die provides scratch and impact protection, particularly for the metal air bridge, which contacts the diode’s anode. Die should primarily be handled with vacuum pickups, or alternatively with plastic tweezers. ASSEMBLY TECHNIQUES The MA4AGSW1, AlGaAs switch is designed to be mounted with electrically conductive silver epoxy or with a lower temperature solder perform, which does not have a rich tin content. SOLDER DIE ATTACH All die attach and bonding methods should be compatible with gold metal. Solder which does not scavenge gold, such as 80/20, Au/Sn or Indalloy #2 is recommended. Do not expose die to temperatures greater than 300°C for more than 10 seconds. ELECTRICAL CONDUCTIVE EPOXY DIE ATTACH Use a controlled thickness of approximately 2 mils for best electrical conductivity and lowest thermal resistance. Cure epoxy per manufacturer’s schedule. Typically 150°C for 1 hour. RIBBON/WIRE BONDING Thermo-compression wedge or ball bonding may be used to attach ribbons or wire to the gold bonding pads. A 1/4 x 3 mil gold ribbon is recommended on all RF ports and should be kept as short as possible for the lowest inductance and best microwave performance. For more detailed handling and assembly instructions, see Application Note M541, “Bonding and Handling Procedures for Chip Diode Devices” at www.macomtech.com. Ordering Information Part Number Package MA4AGSW1 Waffle Pack 7 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400 is considering for development. Performance is based on target specifications, simulated results, • India Tel: +91.80.43537383 • China Tel: +86.21.2407.1588 and/or prototype measurements. Commitment to develop is not guaranteed. Visit www.macomtech.com for additional data sheets and product information. PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice.