SMV2019

Silicon Hyperabrupt Varactor Diode Chips SMV2019 to SMV2023 Features I High Q for Low Loss Resonators I Low Leakage Current I High Tuning Ratio for Wideband VCOs I SPICE Model Parameters I Small Footprint Chip Design Description Alpha Industries’ product line of silicon hyperabrupt junction varactor diode chips are processed using established ion-implantation technology resulting in low RS wide tuning ratio devices with high Q values. These planar chips have a small outline size (12 x 12 mils nominal) and are fully passivated resulting in low leakage current and high reliability. These varactor chips are intended for assembly in hybrid integrated circuit resonators used in VCOs and analog tuned filters. Electrical Specifications at 25°C Part Number SMV2019-000 SMV2020-000 SMV2021-000 SMV2022-000 SMV2023-000 CJ @ 0 V (pF)1 Typ. 2.3 3.1 4.5 7.1 10.8 Min. 0.68 1.13 1.58 2.48 4.28 CJ @ 4 V (pF) Max. 0.88 1.43 1.98 3.08 5.28 CJ @ 20 V (pF) Min. 0.13 0.23 0.32 0.48 0.78 Max. 0.23 0.33 0.44 0.68 1.08 Q @ 4V 50 MHz2 Min. 500 500 500 400 400 1 GHz RS @ 4 V (Ω) Typ. 4.8 4.1 2.8 2.2 1.4 IR @17.6 V Contact (nA)3 Diam. (mils)4 Max. 50 50 50 50 50 Nom. 2.00 2.50 3.00 3.75 5.00 1. All capacitance values specified at 1 MHz. 2. 50 MHz Q calculated from 1 GHz RS and 1 MHz CJ. 3. VB at 10 µA specified at 22 V Min. 4. Outline drawing 149-801. Outline Drawing 149-801 ANODE METALIZED GOLD DOT 0.002 (0.051 mm) DIA. MIN. 0.010 (0.254 mm) MIN. 0.014 (0.356 mm) MAX. SQ. Absolute Maximum Ratings Characteristic Reverse Voltage (VR) Forward Current (IF) Power Dissipation at 25°C (PD) Operating Temperature (TOP) Storage Temperature (TST) SILICON Value 22 V 100 mA 250 mW -55°C to +150°C -65°C to +200°C 0.004 (0.127 mm) MIN. 0.006 (0.152 mm) MAX. CATHODE METALIZED BACK CONTACT - GOLD Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com Specifications subject to change without notice. 8/01A 1 Silicon Hyperabrupt Varactor Diode Chips SMV2109 to SMV2023 Typical Performance Data 12 11 10 9 8 7 6 5 4 3 2 1 0 0 6 SMV2019-000 Series Resistance (Ω) 5 4 3 2 1 0 Capacitance (pF) SMV2023-000 SMV2022-000 SMV2021-000 SMV2020-000 SMV2019-000 SMV2020-000 SMV2021-000 SMV2022-000 SMV2023-000 5 10 15 20 0 4 8 12 16 20 Reverse Voltage (V) Reverse Voltage (V) Capacitance vs. Reverse Voltage Series Resistance vs. Voltage @ 1 GHz Typical Capacitance Values VR (V) 0.0 0.5 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 SMV2019 SMV2020 CJ (pF) CJ (pF) 2.25 1.79 1.53 1.19 0.99 0.84 0.71 0.57 0.46 0.38 0.33 0.29 0.26 0.24 0.23 0.21 0.20 0.19 0.19 0.18 0.17 0.16 3.14 2.5 2.16 1.72 1.44 1.24 1.07 0.90 0.74 0.61 0.52 0.46 0.42 0.38 0.36 0.34 0.32 0.31 0.29 0.28 0.27 0.26 SMV2021 CJ (pF) 4.48 3.57 3.09 2.45 2.09 1.83 1.60 1.37 1.17 0.97 0.81 0.69 0.61 0.56 0.51 0.48 0.45 0.43 0.41 0.39 0.38 0.36 SMV2022 SMV2023 CJ (pF) CJ (pF) 7.08 5.66 4.88 3.89 3.19 2.71 2.30 1.87 1.52 1.25 1.07 0.94 0.85 0.78 0.73 0.69 0.65 0.62 0.59 0.57 0.55 0.54 10.76 8.76 7.67 6.31 5.38 4.75 4.21 3.66 3.17 2.68 2.25 1.89 1.66 1.49 1.35 1.24 1.16 1.10 1.04 0.99 0.95 0.91 SPICE Model DIODEM Diode_Model IS = 1.00e-14 RS = RS N = 1, 2 TT = 0 CJO = CJO M=M VJ = V J EG = 1.11 XTI = 3 KF =0 AF =1 FC = 0.5 BV = 22 IBV = 1e-5 ISR = 0 NR = 2 IKF = 0 NBV = 1 IBVL = 0 NBVL = 1 TBV1 = 0 TNOM = 27 FFE = 1 PORT P_anode port = 1 RES RS R = RS DIODE Varactor_Diode AREA = 1 MODEL = Diode_Model MODE = nonlinear PORT P_Cathode port = 2 CV = CJ0 1+ VR VJ VJ (V) 3.5 3.6 3.9 4.0 4.6 M + CP Part Number SMV2019 SMV2020 SMV2021 SMV2022 SMV2023 CJO (pF) 2.3 3.3 4.5 7.1 10.8 M 1.40 1.30 1.34 1.40 1.45 RS (Ω) 4.8 4.1 2.8 2.2 1.4 SPICE model parameters extracted from measured characteristics may not reflect exact physical or electronic properties. See application note APN1004. 2 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com Specifications subject to change without notice. 8/01A