CHA2296 9- 19GHz Buffer Splitter Amplifier GaAs Monolithic Microwave IC Description OUT 1 The CHA2296 is a broadband buffer splitter three-stage monolithic amplifier. It is designed for a wide range of applications, from military to commercial communication systems. The backside of the chip is both RF and DC grounds. This helps simplify the assembly process. Vd Vg IN The circuit is manufactured with a PM-HEMT process, 0.25µm gate length, via holes through the substrate, air bridges and electron beam gate lithography. It is available in chip form. OUT 2 Typical on wafer measurements : Gain (dB) 20 Main Features 19 18 ■ Broadband performance : 9-19GHz ■ 14dBm saturated output power. ■ 16dB ±1.5dB gain ■ Very good broadband matching ■ Low DC power consumption, 190mA @ 3.5V ■ Chip size : 2.26 X 1.33 X 0.10 mm 17 16 15 14 13 12 Gain channel 1 Gain channel 2 11 10 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Frequency (GHz) Main Characteristics Tamb. = 25°C Symbol Fop G Psat Id_small signal Parameter Min Typ Max Unit 19 GHz Operating frequency range 9 Small signal gain 13 16 dB Saturated Output power 12 14 dBm Bias current 190 250 mA ESD Protection : Electrostatic discharge sensitive device. Observe handling precautions ! Ref. :DSCHA22962044 13-Feb.-02 1/7 Specifications subject to change without notice United Monolithic Semiconductors S.A.S. Route Départementale 128 - B.P.46 - 91401 Orsay Cedex France Tel. : +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 9-19GHz Buffer Splitter Amplifier CHA2296 Electrical Characteristics for Broadband Operation Tamb = +25°C, Vd = 3.5V Vg tuned for Id=190mA Symbol Fop G ∆G Parameter Min Operating frequency range (1) 9 Small signal gain (1) 13 Small signal gain flatness (1) Typ Max Unit 19 GHz 16 dB ±1.5 dB Is Reverse isolation (1) 60 dB Ic Isolation between channels (1) 20 dB 14 dBm Psat VSWRin VSWRout Saturated output power (1) 12 Input VSWR (1) 2.0:1 Output VSWR (1) 2.0:1 Id_small signal Bias current 190 250 mA (1) These values are representative for on-wafer measurements that are made without bonding wires at the RF ports. Absolute Maximum Ratings Tamb. = 25°C (1) Symbol Parameter Values Unit Vds Drain bias voltage_small signal 4.0 V Ids Drain bias current_small signal 300 mA Vgs Gate bias voltage -2 to +0.4 V Vdg Negative Drain Gate voltage (= Vds – Vgs) +5 V Pin Maximum peak input power overdrive (2) +15 dBm Ta Operating temperature range -40 to +85 °C Storage temperature range -55 to +155 °C Tstg (1) Operation of this device above anyone of these parameters may cause permanent damage. (2) Duration < 1s. Ref. : DSCHA22962044 13-Feb.-02 2/7 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 Specifications subject to change without notice 9-19GHz Power splitter Amplifier CHA2296 Typical Scattering Parameters ( On wafer Sij measurements ) Bias Conditions : Vd = 3.5 Volt, Vg tuned for Id = 190 mA. Channel Freq. S11 S11 S12 S12 S21 S21 S22 S22 GHz dB /° dB /° dB /° dB /° 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 -12.34 -15.29 -17.46 -17.44 -16.63 -16.30 -16.41 -16.72 -17.15 -17.10 -16.93 -16.76 -16.59 -16.80 -18.71 -21.72 -22.50 -18.17 -12.32 -15.27 -17.46 -17.39 -16.63 -16.25 -16.37 -16.71 -17.09 -17.11 -16.84 -16.78 -16.51 -16.82 -18.61 -21.50 -22.46 -18.06 Ref. : DSCHA22962044 13-Feb.-02 -94.87 -102.89 -97.03 -90.47 -91.57 -97.50 -103.81 -107.46 -111.72 -110.94 -113.66 -116.42 -121.64 -129.92 -137.93 -133.29 -91.29 -73.84 -94.79 -102.90 -97.18 -90.48 -91.64 -97.89 -103.76 -107.93 -111.39 -110.96 -113.34 -116.77 -121.60 -129.65 -138.19 -132.84 -92.59 -74.29 -66.94 -67.83 -66.67 -66.06 -67.50 -67.33 -65.23 -69.95 -66.02 -97.44 -70.70 -63.72 -70.22 -64.92 -66.62 -57.46 -60.06 -66.35 -67.52 -69.76 -66.21 -66.67 -66.58 -67.04 -64.61 -65.01 -64.06 -65.31 -64.26 -61.83 -72.17 -69.62 -64.20 -60.17 -60.24 -58.18 -38.90 -87.89 -87.44 -140.51 -123.38 175.31 -177.40 145.63 138.93 -155.97 166.71 170.65 97.77 154.63 -138.40 176.38 117.94 142.93 -31.29 -103.63 -90.60 -140.90 -140.49 -155.99 175.45 -171.47 151.41 142.93 156.24 107.47 144.18 130.95 168.06 135.42 126.24 126.19 3/7 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 -2.14 5.84 11.51 14.82 16.36 16.98 17.05 17.17 16.99 16.72 16.76 16.59 16.29 16.01 15.67 15.02 14.10 13.15 -4.49 3.64 9.59 13.21 14.89 15.65 15.85 15.97 16.15 15.95 15.97 15.84 15.65 15.55 15.28 14.89 13.93 13.10 41.09 -11.01 -68.31 -125.78 -177.87 136.79 97.30 61.74 27.77 -3.82 -32.72 -63.33 -92.58 -122.60 -151.31 177.95 148.71 119.32 37.49 -10.20 -65.41 -121.94 -173.34 141.31 102.63 67.05 32.89 1.43 -28.92 -58.97 -87.83 -117.21 -147.64 -178.56 151.11 121.08 -2.04 -3.64 -5.95 -8.74 -11.67 -15.00 -18.81 -23.94 -29.04 -31.35 -28.61 -22.22 -21.30 -19.35 -18.99 -17.24 -17.98 -17.05 -2.04 -3.61 -5.86 -8.59 -11.49 -14.45 -18.12 -22.97 -30.44 -34.60 -27.80 -24.72 -22.65 -20.65 -19.63 -18.58 -17.39 -16.21 -88.40 -108.79 -127.83 -143.37 -156.13 -167.18 -176.53 178.88 -146.27 -89.10 -91.76 -116.88 -125.33 -140.70 -154.19 -168.27 178.00 169.87 -88.02 -108.12 -127.23 -142.92 -155.45 -167.89 -179.43 170.53 174.52 -115.92 -89.11 -105.11 -112.92 -126.05 -138.57 -153.24 -164.66 -176.47 Specifications subject to change without notice 9-19GHz Buffer Splitter Amplifier CHA2296 Typical On wafer Measurements Bias Conditions : Vd = 3.5 Volt, Vg tuned for Id = 190 mA. Gain for each channel versus frequency (dB) 20 19 18 17 16 15 14 13 12 Gain channel 1 Gain channel 2 11 10 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Frequency (GHz) Isolation between channels versus frequency (dB) 25 24 23 22 21 20 19 18 17 16 15 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Frequency (GHz) Ref. : DSCHA22962044 13-Feb.-02 4/7 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 Specifications subject to change without notice 9-19GHz Power splitter Amplifier CHA2296 Gain & Return Loss channel 1 versus frequency (dB) 18 14 10 6 2 S21 S11 S22 -2 -6 -10 -14 -18 -22 -26 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Frequency (GHz) Gain & Return Loss channel 2 versus frequency (dB) 18 14 10 6 2 S21 -2 S11 S22 -6 -10 -14 -18 -22 -26 5 6 7 8 9 Ref. : DSCHA22962044 13-Feb.-02 10 11 12 13 14 15 16 17 18 19 20 21 22 Frequency (GHz) 5/7 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 Specifications subject to change without notice CHA2296 9-19GHz Buffer Splitter Amplifier Chip Assembly and Mechanical Data RF Out 1 To Vd DC Drain supply feed 120pF RF In 120pF RF Out 2 To Vg DC Gate supply feed Note : Supply feed should be capacitively bypassed. 25µm diameter gold wire is recommended. Bonding pad positions. ( Chip thickness : 100µm. DC pads : 100*100 µm². All dimensions are in micrometers ) Ref. : DSCHA22962044 13-Feb.-02 6/7 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 Specifications subject to change without notice 9-19GHz Power splitter Amplifier CHA2296 Ordering Information Chip form : CHA2296-99F/00 Information furnished is believed to be accurate and reliable. However United Monolithic Semiconductors S.A.S. assumes no responsability for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of United Monolithic Semiconductors S.A.S.. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. United Monolithic Semiconductors S.A.S. products are not authorised for use as critical components in life support devices or systems without express written approval from United Monolithic Semiconductors S.A.S. Ref. : DSCHA22962044 13-Feb.-02 7/7 Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09 Specifications subject to change without notice