HMC261 v01.0500 MICROWAVE CORPORATION GaAs MMIC MEDIUM POWER DISTRIBUTED AMPLIFIER, 20 - 40 GHz AMPLIFIERS - CHIP 1 Typical Applications Features The HMC261 is ideal for: Stable Gain vs. Temperature: 14dB ± 1.5dB • MMW Point-to-Point Radios High Reverse Isolation: 40 ~ 50 dB • LMDS P1dB Output Power: +12 dBm • VSAT Small Size: 1.3mm x 1.7mm • SATCOM General Description Functional Diagram The HMC261 chip is a GaAs MMIC distributed amplifier which covers the frequency range of 20 to 40 GHz. The chip can easily be integrated into Multi-Chip Modules (MCMs) due to its small (2.21 mm2) size. The chip utilizes a GaAs PHEMT process, operating from a single bias supply of + 3 to +4V with a P1dB output power of +12 dBm. All data is with the chip in a 50 ohm test fixture connected via 0.025 mm (1 mil) diameter wire bonds of minimal length 0.31 mm (<12 mils). The HMC261 may be used to drive the LOs of HMC mixers such as the HMC203, HMC292, HMC294, or HMC329. Electrical Specifications, TA = +25° C, Vdd = +4V Parameter Min. Frequency Range 1-2 Typ. Max. Min. 20 - 40 Gain 8 13 Input Return Loss 3 Output Return Loss Typ. Max. 27 - 32 18 Units GHz 11 14 14 dB 9 6 8 dB 4 10 7 8 dB Reverse Isolation 32 45 40 45 dB Output Power for 1 dB Compression (P1dB) 8 12 9 12 dBm S a t u r a t e d O u t p u t Po w e r ( P s a t ) 11 13 11 13 dBm Output Third Order Intercept (IP3) 20 23 20 23 dBm Noise Figure 7.5 13 7 10 dB Supply Current (ldd) 75 90 75 90 mA For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Visit us at www.hittite.com, or Email at [email protected] MICROWAVE CORPORATION HMC261 v01.0500 GaAs MMIC MEDIUM POWER DISTRIBUTED AMPLIFIER, 20 - 40 GHz MMIC SUB-HARMONICALLY PUMPED MIXER @ 17Vdd - 25 GHz GainGaAs vs. Temperature @ Vdd = +4V Gain vs. Temperature = +3V 20 20 18 18 -55 C 16 12 10 8 +85 C 6 12 10 8 +85 C 6 +25 C 4 4 2 2 0 +25 C 0 15 20 25 30 35 40 15 20 FREQUENCY (GHz) Return Loss @ Vdd = +4V 0 0 -2 S11 (Input) 35 40 35 40 35 40 S11 (Input) -4 RETURN LOSS (dB) RETURN LOSS (dB) -4 -6 -8 -10 -12 -14 S22 (Output) -6 -8 -10 -12 -14 S22 (Output) -16 -18 -18 -20 -20 15 20 25 30 35 40 15 20 FREQUENCY (GHz) 25 30 FREQUENCY (GHz) Reverse Isolation @ Vdd = +3V Reverse Isolation @ Vdd = +4V 0 0 -10 -10 REVERSE ISOLATION (dB) REVERSE ISOLATION (dB) 30 Return Loss @ Vdd = +3V -2 -16 25 FREQUENCY (GHz) AMPLIFIERS - CHIP 14 GAIN (dB) GAIN (dB) -55 C 16 14 1 -20 -30 -40 -50 -60 -20 -30 -40 -50 -60 -70 -70 15 20 25 30 FREQUENCY (GHz) 35 40 15 20 25 30 FREQUENCY (GHz) For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Visit us at www.hittite.com, or Email at [email protected] 1-3 HMC261 v01.0500 MICROWAVE CORPORATION GaAs MMIC MEDIUM POWER DISTRIBUTED AMPLIFIER, 20 - 40 GHz 1 P1dB Output Power vs. Temperature @ Vdd = +4V Noise Figure vs. Vdd 15 20 14 18 P1dB OUTPUT (dBm) Noise Figure (dB) 12 11 10 9 Vdd= +4V 8 -55C 14 12 10 8 +85C 6 4 6 Vdd= +3V 2 5 20 22 24 26 28 30 32 34 36 38 0 40 20 22 24 26 FREQUENCY (GHz) 28 30 32 34 36 38 40 34 36 38 40 FREQUENCY (GHz) Output IP3 vs. Temperature @ Vdd = +4V Output IP3 vs. Temperature @ Vdd = +3V 30 +25C THIRD ORDER INTERCEPT (dBm) 30 -55C 25 20 +85C 15 10 -55C 25 20 +25C 15 +85C 10 20 22 24 26 28 30 32 FREQUENCY (GHz) 1-4 +25C 16 7 THIRD ORDER INTERCEPT (dBm) AMPLIFIERS - CHIP 13 34 36 38 40 20 22 24 26 28 30 32 FREQUENCY (GHz) For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Visit us at www.hittite.com, or Email at [email protected] HMC261 v01.0500 MICROWAVE CORPORATION GaAs MMIC MEDIUM POWER DISTRIBUTED AMPLIFIER, 20 - 40 GHz Absolute Maximum Ratings +5.5 Vdc Input Power (RFin) (Vdd= +3V) +16 dBm Channel Temperature (Tc) 175 °C Thermal Resistance ( jc) (Channel Backside) 90 °C/W Storage Temperature -65 to +150 °C Operating Temperature -55 to +85 °C 1 AMPLIFIERS - CHIP Supply Voltage (Vdd) Outline Drawing (See Die Handling, Mounting, Bonding Note) Vdd Backside is Ground RF IN RF OUT ALL DIMENSIONS IN MILLIMETERS (INCHES) ALL TOLERANCES ARE ±0.025 (0.001) DIE THICKNESS IS 0.100 (0.004) BACKSIDE IS GROUND BOND PADS ARE 0.100 (0.004) SQUARE BOND PAD SPACING, CTR-CTR: 0.150 (0.006) BACKSIDE METALLIZATION: GOLD BOND PAD METALLIZATION: GOLD For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Visit us at www.hittite.com, or Email at [email protected] 1-5 MICROWAVE CORPORATION HMC261 v01.0500 GaAs MMIC MEDIUM POWER DISTRIBUTED AMPLIFIER, 20 - 40 GHz AMPLIFIERS - CHIP 1 MMIC Assembly Techniques for HMC261 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). Figure 3: Typical HMC261 Assembly Microstrip substrates should be brought 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). An RF bypass capacitor should be used on the Vdd input. A 100 pF single layer capacitor (mounted eutectically or by conductive epoxy) placed no further than 0.762mm (30 Mils) from the chip is recommended. 1-6 For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Visit us at www.hittite.com, or Email at [email protected] MICROWAVE CORPORATION v01.0500 HMC261 GaAs MMIC MEDIUM POWER DISTRIBUTED AMPLIFIER, 20 - 40 GHz Handling Precautions Follow these precautions to avoid permanent damage. 1 Static Sensitivity: Follow ESD precautions to protect against > ± 250V ESD strikes. Transients: Suppress instrument and bias supply transients while bias is applied. Use shielded signal and bias cables to minimize inductive pick-up. 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 deg. C and a tool temperature of 265 deg. C. When hot 90/10 nitrogen/hydrogen gas is applied, tool tip temperature should be 290 deg. C. AMPLIFIERS - CHIP Cleanliness: Handle the chips in a clean environment. DO NOT attempt to clean the chip using liquid cleaning systems. DO NOT expose the chip to a temperature greater than 320 deg. 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 Ball or wedge bond with 0.025 mm (1 mil) diameter pure gold wire (DC Bias) or ribbon bond (RF ports) 0.076 mm x 0.013 mm (3 mil x 0.5 mil) size is recommended. Thermosonic wirebonding with a nominal stage temperature of 150 deg. C and a ball bonding force of 40 to 50 grams or wedge bonding force of 18 to 22 grams is recommended. Use the minimum level of ultrasonic energy to achieve reliable wirebonds. Wirebonds should be started on the chip and terminated on the package or substrate. All bonds should be as short as possible <0.31 mm (12 mils). For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Visit us at www.hittite.com, or Email at [email protected] 1-7