GaAs Hyperabrupt Junction Varactor Diodes GMV7811, GMV7821 GMV9801, GMV9821, GMV9822 Features ■ Constant Gamma of 1.0 and 1.25 ■ Highly Linear Frequency Tuning ■ Constant Modulation Sensitivity ■ Lower Series Resistance and Higher Q in Comparison to Equivalent Silicon Hyperabrupt Varactors Chip Flip Chip Outline Drawings 540-011 Description This series of GaAs hyperabrupt varactor diodes features a constant gamma of 1.0 and 1.25, which allows for a relatively linear frequency tuning for VCOs, modulators and tunable filters. Varactors in this series are grown by MBE (Molecular Beam Epitaxy), which allows monolayer control of the doping profile.This translates to superb waferto-wafer uniformity. The series resistance is lower, and Q is higher when compared to an equivalent silicon hyperabrupt varactor. These diodes are suited for applications at X band frequencies and above, where wide change in frequency is desired. However, in certain applications the GaAs hyperabrupt varactor exhibits a higher surface noise in comparison to an equivalent silicon varactor. Absolute Maximum Ratings Characteristic 0.013 (0.33 mm) ± 0.001 (0.025 mm) 0.008 (0.20 mm) ± 0.001 (0.025 mm) 0.013 (0.33 mm) ± 0.001 (0.025 mm) 0.005 (0.13 mm) ± 0.001 (0.025 mm) 0.004 (0.10 mm) ± 0.001 (0.025 mm) MAX. 150-808 Value Reverse Voltage (VR) 18 V Forward Current (IF) 100 mA Power Dissipation at 25°C 0.026 (0.66 mm) ± 0.001 (0.025 mm) METALLIZED GOLD DOT 0.0011 (0.0279 mm) MIN. DIA. 0.010 (0.25 mm) ± 0.001 (0.025 mm) 250 mW Operating Temperature (TOP) -55°C to +150°C Storage Temperature (TST) -65°C to +200°C 0.010 (0.25 mm) ± 0.001 (0.025 mm) METALLIZED BACK CONTACT GOLD 0.005 (0.13 mm) NOM. Skyworks Solutions, Inc. [781] 376-3000 • Fax [781] 376-3100 • Email [email protected] • www.skyworksinc.com Specifications subject to change without notice. 5/03A 1 GaAs Hyperabrupt Junction Varactor Diodes GMV7811, GMV7821, GMV9801, GMV9821, GMV9822 Electrical Characteristics GaAs Hyperabrupt Junction Varactor Chips Gamma = 1.0 Part Number GMV7811-000 Typical Voltage Range of Gamma (V) VB @ 10 µA (V) IR @ 14.4 V (nA) Min. Max. 18 100 2–12 VB @ 10 µA (V) IR @ 14.4 V (nA) Typical Voltage Range of Gamma (V) Min. Max. 18 100 Junction Capacitance CJ @ 4 V (pF) CJ @ 2 V CJ @ 12 V (Ratio) Q @ 4V 50 MHz Outline Drawing Number Min. Max. Min. Max. Typ. 0.4 0.6 3.63 4.43 4000 150-808 Q @ 4V 50 MHz Outline Drawing Number Gamma = 1.25 Part Number GMV9801-000 2–12 CJ @ 2 V CJ @ 12 V (Ratio) Junction Capacitance (pF) Min. Max. Min. Max. Typ. 0.3 0.4 5.14 6.28 4000 150-808 GaAs Hyperabrupt Junction Varactor Flip Chips Gamma = 1.0 Part Number GMV7821-000 Junction Capacitance CJ @ 4 V (pF) CJ @ 2 V CJ @ 12 V (Ratio) VB @ 10 µA (V) IR @ 14.4 V (nA) Min. Max. Min. Max. Min. Max. Typ. 18 100 0.4 0.6 3.30 4.10 4000 540-011 VB @ 10 µA (V) IR @ 14.4 V (nA) Q @ 4V 50 MHz Outline Drawing Number Q @ 4V 50 MHz Outline Drawing Number Gamma = 1.25 Part Number Junction Capacitance CJ @ 4 V (pF) CJ @ 2 V CJ @ 12 V (Ratio) Min. Max. Min. Max. Min. Max. Typ. GMV9821-000 18 100 0.3 0.4 4.30 5.27 4000 540-011 GMV9822-000 18 100 0.4 0.6 4.53 5.55 3500 540-011 ♦ Available through distribution. 2 Skyworks Solutions, Inc. [781] 376-3000 • Fax [781] 376-3100 • Email [email protected] • www.skyworksinc.com Specifications subject to change without notice. 5/03A GaAs Hyperabrupt Junction Varactor Diodes GMV7811, GMV7821, GMV9801, GMV9821, GMV9822 Typical Capacitance Values SPICE Model GMV7811 GMV9801 GMV7821 GMV9821 GMV9822 VR (V) CJ (pF) CJ (pF) CJ (pF) CJ (pF) CJ (pF) 0 1.38 1.12 1.33 1.07 1.55 1 1.03 0.84 1.01 0.81 1.17 2 0.80 0.63 0.79 0.61 0.88 3 0.62 0.45 0.61 0.45 0.64 4 0.50 0.35 0.50 0.35 0.50 5 0.42 0.28 0.42 0.29 0.41 6 0.36 0.23 0.37 0.24 0.34 7 0.32 0.20 0.33 0.21 0.30 8 0.28 0.17 0.30 0.19 0.26 9 0.26 0.15 0.27 0.17 0.23 10 0.23 0.14 0.25 0.15 0.21 11 0.22 0.12 0.23 0.14 0.19 12 0.20 0.11 0.21 0.13 0.18 PORT P_anode port = 1 RES RS R = RS CAP CP C = CP DIODE Varactor_Diode AREA = 1 MODEL = Diode_Model MODE = nonlinear PORT P_Cathode port = 2 CV = CJ0 1+ VR VJ M DIODEM Diode_Model IS = 1.00e-14 → 0.5e-12 RS = 0 N=1 TT = 0 CJO = CJO M=M VJ = V J EG = 1.11 → 1.43 XTI = 3 → 2 KF =0 AF =1 FC = 0.5 BV = 0 IBV = 1e-3 ISR = 0 NR = 2 IKF = 0 NBV = 1 IBVL = 0 NBVL = 1 TBV1 = 0 TNOM = 27 FFE = 1 + CP Part Number CJ0 (pF) VJ (V) M CP (pF) GMV7811 1.38 5.20 2.10 0.080 GMV9801 1.12 5.50 2.30 0.030 GMV7821 1.33 5.20 2.00 0.080 GMV9821 1.07 5.50 2.40 0.060 GMV9822 1.55 5.50 2.40 0.080 1. Values extracted from measured performance. Skyworks Solutions, Inc. [781] 376-3000 • Fax [781] 376-3100 • Email [email protected] • www.skyworksinc.com Specifications subject to change without notice. 5/03A 3