HMC902 v01.0911 Amplifiers - Low Noise - SMT 7 GaAs pHEMT MMIC LOW NOISE AMPLIFIER, 5 - 10 GHz Typical Applications Features This HMC902 is ideal for: Noise Figure: 1.6 dB • Point-to-Point Radios Gain: 20 dB • Point-to-Multi-Point Radios P1dB Output Power: 16 dBm • Military & Space Supply Voltage: +3.5 V @ 80 mA • Test Instrumentation Output IP3: 28 dBm • ISM, UNII & WCS 50 Ohm matched Input/Output Die Size: 1.33 x 1.04 x 0.1 mm Functional Diagram General Description The HMC902 is a GaAs MMIC Low Noise Amplifier, which operates between 5 and 10 GHz. This selfbiased LNA provides 20 dB of small signal gain, 1.6 dB noise figure, and output IP3 of +28 dBm, while requiring only 80 mA from a +3.5V supply. The P1dB output power of 16 dBm enables the LNA to function as a LO driver for balanced, I/Q or image reject mixers. The HMC902 also features I/Os that are matched to 50 Ohms for ease of integration into multichip-modules (MCMs). All data is taken with the chip in a 50 Ohm test fixture connected via two 0.025 mm (1 mil) diameter wire bonds of 0.31 mm (12 mils) length. Electrical Specifications, TA = +25° C, Vdd1 = Vdd2 = +3.5V, Idd = 80 mA [1] Parameter Min. Frequency Range Gain Gain Variation over Temperature Typ. Max. 5 - 10 17 Units GHz 20 dB 0.012 dB / °C Noise Figure 1.6 Input Return Loss 12 dB Output Return Loss 15 dB Output Power for 1 dB Compression 2.1 dB 16 dBm 17.5 dBm Output Third Order Intercept (IP3) 28 dBm Supply Current (Idd) 80 mA Saturated Output Power (Psat) [1] Vgg1 = Vgg2 = no connection, for normal, self-biased operation. 7-1 For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC902 v01.0911 GaAs pHEMT MMIC LOW NOISE AMPLIFIER, 5 - 10 GHz 15 23 S21 S11 S22 -5 -15 +25C +85C -55C 21 19 17 -25 15 3 5 7 9 11 13 4 5 6 FREQUENCY (GHz) Input Return Loss vs. Temperature 9 10 11 0 +25C +85C -55C -5 RETURN LOSS (dB) -5 RETURN LOSS (dB) 8 Output Return Loss vs. Temperature 0 -10 -15 -20 -25 -10 -15 +25C +85C -40C -20 -25 -30 -30 4 5 6 7 8 9 10 11 5 6 7 FREQUENCY (GHz) 9 10 11 Output IP3 vs. Temperature 6 35 5 30 +25C +85C -55C 25 IP3 (dBm) 4 8 FREQUENCY (GHz) Noise Figure vs. Temperature NOISE FIGURE (dB) 7 FREQUENCY (GHz) Amplifiers - Low Noise - SMT 25 GAIN (dB) RESPONSE (dB) 25 5 7 Gain vs. Temperature Broadband Gain & Return Loss 3 20 2 15 1 10 0 +25C +85C -40C 5 4 5 6 7 8 FREQUENCY (GHz) 9 10 11 5 6 7 8 9 10 FREQUENCY (GHz) For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 7-2 HMC902 v01.0911 Psat vs. Temperature 25 25 20 20 Psat (dBm) P1dB (dBm) P1dB vs. Temperature 15 +25C +85C -55C 10 5 15 +25C +85C -55C 10 5 0 0 4 5 6 7 8 9 10 11 5 6 7 FREQUENCY (GHz) 8 9 10 11 FREQUENCY (GHz) Reverse Isolation vs. Temperature Power Compression @ 7 GHz 24 Pout (dBm), GAIN (dB), PAE (%) 0 +25C +85C -55C -10 ISOLATION (dB) Amplifiers - Low Noise - SMT 7 GaAs pHEMT MMIC LOW NOISE AMPLIFIER, 5 - 10 GHz -20 -30 -40 -50 -60 4 5 6 7 8 9 10 20 16 12 8 4 0 -4 -21 11 Pout Gain PAE -18 -15 -12 FREQUENCY (GHz) -9 -6 -3 0 3 INPUT POWER (dBm) 22 7 20 6 5 P1dB GAIN 18 4 16 14 3 NF 12 2 10 1 NOISE FIGURE (dB) GAIN (dB), P1dB (dBm) Gain, Noise Figure & Power vs. Supply Voltage @ 7 GHz 0 8 3 3.5 4 Vdd (V) 7-3 For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC902 v01.0911 GaAs pHEMT MMIC LOW NOISE AMPLIFIER, 5 - 10 GHz Drain Bias Voltage +4.5V RF Input Power +10 dBm Gate Bias Voltage, Vgg1 -0.8V to +0.2V Gate Bias Voltage, Vgg2 -0.8V to +0.2V Channel Temperature 175 °C Continuous Pdiss (T = 85 °C) (derate 7 mW/°C above 85 °C) 0.63 W Thermal Resistance (Channel to die bottom) 143.8 °C/W Storage Temperature -65 to +150 °C Operating Temperature -55 to +85 °C ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Outline Drawing Amplifiers - Low Noise - SMT 7 Absolute Maximum Ratings This die utilizes fragile air bridges. Any pick-up tools used must not contact the die in the cross hatched area. Die Packaging Information [1] Standard Alternate GP-2 (Gel Pack) [2] [1] Refer to the “Packaging Information” section on our website for die packaging dimensions. [2] For alternate packaging information contact Hittite Microwave Corporation. NOTES: 1. ALL DIMENSIONS IN INCHES [MILLIMETERS] 2. DIE THICKNESS IS 0.004 (0.100) 3. TYPICAL BOND PAD IS 0.004 (0.100) SQUARE 4. BOND PAD METALIZATION: GOLD 5. BACKSIDE METALLIZATION: GOLD 6. BACKSIDE METAL IS GROUND 7. NO CONNECTION REQUIRED FOR UNLABELED BOND PADS 8. OVERALL DIE SIZE IS ±0.002” For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 7-4 HMC902 v01.0911 Amplifiers - Low Noise - SMT 7 7-5 GaAs pHEMT MMIC LOW NOISE AMPLIFIER, 5 - 10 GHz Pad Descriptions Pad Number Function Description 1 RFIN This pin is matched to 50 Ohms 2, 3 Vdd2, Vdd1 Power supply voltage for the amplifier see assembly for required external components. 4 RFOUT This pin is matched to 50 Ohms 5, 6 Vgg1, Vgg2 Optional gate control for amplifier. If left open, the amplifier will run at standard current. Negative voltage applied will reduce current. Die Bottom GND Die bottom must be connected to RF/DC ground. Interface Schematic Assembly Diagram For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] HMC902 GaAs pHEMT MMIC LOW NOISE AMPLIFIER, 5 - 10 GHz 7 Mounting & Bonding Techniques for Millimeterwave GaAs MMICs The die should be attached directly to the ground plane eutectically or with conductive epoxy (see HMC general Handling, Mounting, Bonding Note). 50 Ohm Microstrip transmission lines on 0.127mm (5 mil) thick alumina thin film substrates are recommended for bringing RF to and from the chip (Figure 1). If 0.254mm (10 mil) thick alumina thin film substrates must be used, the die should be raised 0.150mm (6 mils) so that the surface of the die is coplanar with the surface of the substrate. One way to accomplish this is to attach the 0.102mm (4 mil) thick die to a 0.150mm (6 mil) thick molybdenum heat spreader (moly-tab) which is then attached to the ground plane (Figure 2). 0.254mm (0.010”) Thick MMIC Wire Bond 0.076mm (0.003”) RF Ground Plane Microstrip substrates should be placed as close to the die as possible in order to minimize bond wire length. Typical die-to-substrate spacing is 0.076mm to 0.152 mm (3 to 6 mils). 0.254mm (0.010”) Thick Alumina Thin Film Substrate Figure 1. Handling Precautions Follow these precautions to avoid permanent damage. Storage: All bare die are placed in either Waffle or Gel based ESD protective containers, and then sealed in an ESD protective bag for shipment. Once the sealed ESD protective bag has been opened, all die should be stored in a dry nitrogen environment. Cleanliness: Handle the chips in a clean environment. DO NOT attempt to clean the chip using liquid cleaning systems. Static Sensitivity: strikes. 0.102mm (0.004”) Thick GaAs MMIC Wire Bond 0.076mm (0.003”) RF Ground Plane Follow ESD precautions to protect against ESD Transients: Suppress instrument and bias supply transients while bias is applied. Use shielded signal and bias cables to minimize inductive pickup. 0.150mm (0.005”) Thick Moly Tab Amplifiers - Low Noise - SMT v01.0911 0.254mm (0.010”) Thick Alumina Thin Film Substrate Figure 2. General Handling: Handle the chip along the edges with a vacuum collet or with a sharp pair of bent tweezers. The surface of the chip has fragile air bridges and should not be touched with vacuum collet, tweezers, or fingers. Mounting The chip is back-metallized and can be die mounted with AuSn eutectic preforms or with electrically conductive epoxy. The mounting surface should be clean and flat. Eutectic Die Attach: A 80/20 gold tin preform is recommended with a work surface temperature of 255 °C and a tool temperature of 265 °C. When hot 90/10 nitrogen/hydrogen gas is applied, tool tip temperature should be 290 °C. DO NOT expose the chip to a temperature greater than 320 °C for more than 20 seconds. No more than 3 seconds of scrubbing should be required for attachment. Epoxy Die Attach: Apply a minimum amount of epoxy to the mounting surface so that a thin epoxy fillet is observed around the perimeter of the chip once it is placed into position. Cure epoxy per the manufacturer’s schedule. Wire Bonding RF bonds made with two 1 mil wires are recommended. These bonds should be thermosonically bonded with a force of 40-60 grams. DC bonds of 0.001” (0.025 mm) diameter, thermosonically bonded, are recommended. Ball bonds should be made with a force of 40-50 grams and wedge bonds at 18-22 grams. All bonds should be made with a nominal stage temperature of 150 °C. A minimum amount of ultrasonic energy should be applied to achieve reliable bonds. All bonds should be as short as possible, less than 12 mils (0.31 mm). For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or [email protected] 7-6