MAAM-011112 Buffer Amplifier 20 – 37 GHz Rev. V1 Features Ordering Information1 Package MAAM-011112-TR0500 500 piece reel MAAM-011112-000000 Bulk Packaging MAAM-011112-000SMB Sample Board 1. Reference Application Note M513 for reel size information. Vd4 Vd3 Vd2 RFIN RFOUT GND GND Pin Designations2 The 3 mm PQFN package has a lead-free finish that is RoHS compliant and compatible with a 260ºC reflow temperature. The package also features low lead inductance and an excellent thermal path. Part Number GND Vg4 The MAAM-011112 primary applications include buffer amplifiers in LO chains and driver amplifiers in transmit lineups for Point-to-Point and Point-toMultipoint communication systems. GND Vg1 The MAAM-011112 is a 4-stage amplifier covering many bands from 20 to 37 GHz with good return losses, high gain, and good linearity. No external matching components are required. This amplifier is internally matched to 50 ohms. The input and output are DC blocked. GND Vg3 Description GND Vg2 Wide Bandwidth 24 dB Gain 20 dBm Output Power 30 dBm IP3 +4V Bias Supply Lead-Free 3 mm 16-Lead PQFN Package RoHS* Compliant and 260°C Reflow Compatible Vd1 Block Diagram Pin Function Pin Function 1 GND 9 GND 2 GND 10 RFOUT 3 RFIN 11 GND 4 GND 12 GND 5 VG1 13 VD4 6 VG2 14 VD3 7 VG3 15 VD2 8 VG4 16 VD1 The exposed pad centered on the package bottom must be connected to RF and DC ground. * Restrictions on Hazardous Substances, European Union Directive 2011/65/EU. MAAM-011112 Buffer Amplifier 20 – 37 GHz Rev. V1 Electrical Specifications: TA=+25°C, VDD = 4.0 V3, Z0 = 50 Ω, ID1 = 75 mA , ID2 = 35 mA, ID3 = 75 mA , ID4 = 150 mA Parameter Units Min. Typ. Max. Gain dB 21 24 — Input Return Loss dB — 8 — Output Return Loss dB — 10 — Output P1dB dBm — 18 — Saturated Power dBm — 20 — Output IP3 dBm 26.5 30 — Noise Figure dB — 6.5 — Supply Current (ID1+ID2+ID3+ID4) mA — 335 400 Drain Voltage (VD1,2,3,4) V — 4.0 — Gate Voltage (VG1,2,3,4) V — -0.3 — 3. Gate voltage must be applied prior to drain voltage. Set VG1, VG2, VG3, VG4, to –1.0V, apply VDD, then adjust VG1, VG2, VG3, VG4 to achieve specified current. Typical Current,335 mA = 75 (ID1) + 35 (ID2) + 75 (ID3) + 150 (ID4) Absolute Maximum Ratings 4,5 Parameter Absolute Maximum Input Power 0 dBm Drain Voltage +4.3 V Gate Voltage 0V Drain Current 500 mA Storage Temperature -55ºC to +150ºC Operating Temperature -40ºC to +85ºC Junction Temperature +150ºC 4. Exceeding any one or combination of these limits may cause permanent damage to this device. 5. M/A-COM Technology does not recommend sustained operation near these survivability limits. Handling Procedures Please observe the following precautions to avoid damage: Static Sensitivity Gallium Arsenide Integrated Circuits are sensitive to electrostatic discharge (ESD) and can be damaged by static electricity. Proper ESD control techniques should be used when handling these devices. MAAM-011112 Buffer Amplifier 20 – 37 GHz Rev. V1 Typical Performance Curves Noise Figure Gain 40 10 8 30 6 20 4 10 0 2 15 20 25 30 35 40 0 15 20 25 Frequency (GHz) Input Return Loss 0 -10 -10 -20 -20 -30 -30 15 20 35 40 35 40 Output Return Loss 0 -40 30 Frequency (GHz) 25 30 35 40 -40 15 20 25 Frequency (GHz) 30 Frequency (GHz) P1dB Output IP3 35 25 20 30 15 25 10 5 0 17.5 GHz 24.7 GHz 30.1 GHz 35.0 GHz 40.0 GHz 20 15 15 20 25 30 Frequency (GHz) 35 40 4 8 12 Output Power per Tone (dBm) 16 MAAM-011112 Buffer Amplifier 20 – 37 GHz Rev. V1 App Note [1] Biasing As shown in the Pin Designation table, the device is operated by biasing Vd1, Vd2, Vd3 and Vd4 at 4.0 V. The corresponding drain currents are set to 75 mA, 35 mA, 75 mA and 150 mA respectively. It is recommended to use active bias on Vg1, Vg2, Vg3 and Vg4 to keep the currents in Vd1, Vd2, Vd3 and Vd4 constant, in order to maintain the best performance over temperature. Depending on the supply voltages available and the power dissipation constraints, the bias circuits may include a single transistor or a low power operational amplifier, with a low value resistor in series with the drain supply to sense the current. Make sure to sequence the applied voltage to ensure negative gate bias is available before applying the positive drain supply. MAAM-011112 Buffer Amplifier 20 – 37 GHz Lead-Free 3 mm 16-Lead PQFN† † Reference Application Note S2083 for lead-free solder reflow recommendations. Meets JEDEC moisture sensitivity level 1 requirements. Plating is 100% matte tin plating over copper Rev. V1