90-Volt Abrupt Tuning Varactors Description The MicroMetrics MTV 4090 series Tuning Varactors are silicon abrupt junction devices. They offer the highest Q and lowest resistance available in 90 volt tuning diodes. A unique silicon dioxide passivation process assures greater stability, reliability and low leakage currents at higher temperatures. Applications The MTV 4090 series Tuning Varactors are used for both narrow and wide band tuning through X-band. These devices are used in circuits requiring a high Q voltage variable capacitance such as: tunable filters and amplifiers, voltage controlled oscillators, frequency synthesizers and continuous phase shifters. They are also useful as frequency and phase modulators in communications applications. Features * Low Series Resistance - High Q * Extensive Selection of Capacitance Values Packaging * Available in a Wide Range of Case Styles as well as Chip Form Typical Performance 100 = .46 =.70 VB=90V JUNCTION CAPACITANCE (Cj) (pF) Tuning Varactors Tuning Varactors: MTV 4090 Series 10 MTV 4090-16 MTV 4090-15 MTV 4090-14 MTV 4090-13 MTV 4090-12 MTV 4090-11 MTV 4090-09 MTV 4090-08 MTV 4090-07 MTV 4090-06 MTV 4090-05 MTV 4090-03 MTV 4090-02 MTV 4090-01 1.0 Standard capacitance tolerance is 10%. Diodes can be optimized for custom electrical or mechanical specifications upon request. REVERSE BIAS SCALE INCLUDES WORK FUNCTION FOR SILICON ( = .7 VOLTS) .10 1.0 10 REVERSE BIAS (Vr) (V) 8 MicroMetrics, Inc. 136 Harvey Road, Building C, Londonderry, NH 03053 Voice: 603-641-3800, Fax: 603-641-3500, Internet: www.micrometrics.com, E-mail: serv@micrometrics.com 100 Electrical Characteristics Total Capacitance, Ct1 at -4V, 1 MHz (pF) Capacitance Ratio Ct0/Ct90 MIN Quality Factor, Q2 at -4V, 50 MHz MIN 0.8 1.0 1.2 1.4 1.6 1.8 2.2 2.7 3.3 3.6 3.9 4.7 5.6 6.8 8.2 10.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 1000 1000 900 900 850 850 850 850 850 800 800 800 800 750 750 750 Part Number Tuning Varactors Tuning Varactors: MTV 4090 Series MTV4090-01 MTV4090-02 MTV4090-03 MTV4090-04 MTV4090-05 MTV4090-06 MTV4090-07 MTV4090-08 MTV4090-09 MTV4090-10 MTV4090-11 MTV4090-12 MTV4090-13 MTV4090-14 MTV4090-15 MTV4090-16 Notes: 1. Capacitance tolerance is 10% except for 20% for suffix number 01, 02. 2. Q specified Vr = 4V, 50 MHz equivalent from 1 GHz or 100 MHz measurement. Maximum Ratings Parameter Operating Temperature Storage Temperature Range Reverse Voltage Device Dissipation at TA = 25C Symbol Top Tstg Vr Value -55 to + 150 -65 to + 200 90 250 Units C C Volts mW MicroMetrics, Inc. 136 Harvey Road, Building C, Londonderry, NH 03053 Voice: 603-641-3800, Fax: 603-641-3500, Internet: www.micrometrics.com, E-mail: serv@micrometrics.com 9