Applications • General purpose, switching Features • Low capacitance • Low resistance • Fast switching • Low distortion attenuation • ADS models available Silicon PIN Diode Chips Skyworks broad product portfolio includes PIN diodes as packaged and bondable silicon chips, in addition to beam-lead, and plastic surface mount packaged devices for switch and attenuator applications. Skyworks series of silicon PIN diode chips offer excellent performance in chip-andwire hybrid circuit switches and attenuators. These devices are available in a wide variety of I layer thicknesses, capacitances and resistances which make them suitable for such diverse applications as very fast switches and low distortion attenuators. Applications PIN diodes are three layer diodes, comprised of a heavily doped anode (the “P” layer) and a heavily doped cathode (the “N” layer) separated by a virtually undoped intrinsic layer (the “I” layer). Under forward bias, charge carriers from the P and the N layers are forced into the I layer, which reduces its RF impedance. When a reverse bias voltage is applied across the PIN diodes, all free charge carriers are removed from the I layer, thereby causing its RF impedance to increase. This variable RF impedance versus DC or low frequency bias signal allows the diode to be used in RF switching circuits, in which the PIN diode is either heavily forward-biased or reverse biased, or in RF attenuation circuits, in which case the PIN diode is utilized as a continuously-variable RF resistance by controlling the magnitude of the DC bias current through the diode. BUY NOW Innovation to GoTM New! Free Designer Kits Select products and sample/designer kits available for purchase online. www.skyworksinc.com Electrical Specifications at 25 °C Part Number Capacitance VR = 50 V, 1 MHz (pF) Max. Capacitance VR = 0 V, 1 MHz (pF) Typ. RS I = 10 mA, 500 MHz (Ω) Max. TL I = 10 mA (ns) Typ. Voltage Rating(1) (V) I Region Thickness (µm) Nom. Thermal Resistance (°C/W) Max. Contact Diameter (Mils) Nom. Outline Drawing Switching Applications APD0505-000 0.05 0.1 2 20 50 5 100 1.5 150-806 APD0510-000 0.1 0.2 1.5 40 50 5 80 2.5 150-801 APD0520-000 0.2 0.25 1 50 50 5 80 3.5 150-801 APD0805-000 0.05 0.1 2 100 100 8 80 2 150-801 APD0810-000 0.1 0.15 1.5 160 100 8 60 3 150-801 APD1510-000 0.1 0.2 2 300 200 15 60 3 150-813 APD1520-000 0.2 0.25 1.2 900 200 15 30 4 150-802 0.2 0.35 4 700 100 50 80 7.5 149-815 Attenuator Applications APD2220-000 1. Reverse current is specified at 10 µA maximum at the voltage rating. This voltage should not be exceeded. Switching The circuit below shows a pair of PIN diodes used to form a single pole, double throw switch. In this switch, a positive control current typically of the order of 10 mA is applied to one of the bias inputs to place that side of the switch into its low insertion loss state, while a negative bias voltage is applied to the other bias input, forcing the diode on that side of the switch into its maximum RF impedance state to produce high isolation on that side of the switch. Many other switching circuit variations exist. Please refer to “Design with PIN Diodes,” available at www. skyworksinc.com for more information. Bias Output C2 C3 Input 1 Input 2 C1 D1 D2 C4 C2, C3 — Chip MIS capacitor C1, C4 — Chip or beam-lead MIS capacitor D1, D2 DSG9500 beam-lead PIN diode Typical SPDT Switch Attenuation RF Input A resistive attenuator can be built utilizing one or more PIN diodes. In this type of circuit, the RF resistance of the PIN diode is adjusted to a desired value by varying the magnitude of the DC bias current applied to the diode. This resistance produces attenuation. The diagrams below show an attenuator that utilizes three PIN diodes. Many other PIN diode attenuator circuit configurations are possible. Please refer to “Design with PIN Diodes,” available at www.skyworksinc.com for more information. Bias R3 R2 R1 RF Input RF Output D3 (RS3) D1 (RS1) RF Output D2 (RS2) Outline Drawings 149-815 150 Series Schematic Anode Metallized Gold Dot 0.010 (0.251 mm) Min. 0.014 (0.356 mm) Max. Sq. Anode Top Contact, Gold 0.002 (0.050 mm) Dia. Min. 0.014 ± 0.001 (0.325 ± 0.025 mm) 150-801: 0.002 (0.051 mm) Min. 150-806: 0.0011 (0.028 mm) Min. 0.014 ± 0.001 (0.325 ± 0.025 mm) 0.004 (0.010 mm) 0.006 (0.015 mm) Nom. 0.004 (0.127 mm) Min. 0.006 (0.152 mm) Max. Silicon Cathode Metallized Back Contact: Gold Metallized Back Contact, Gold -219 Schematic 0.075 (1.91 mm) 0.065 (1.65 mm) Sq. -203 Schematic N-Type 0.045 (1.14 mm) 0.030 (0.76 mm) 0.050 (1.27 mm) 0.040 (1.02 mm) 0.020 (0.51 mm) Typ. 0.010 (0.24 mm) Ref. 0.055 (1.40 mm) 0.051 (1.30 mm) Dia. 0.048 ± 0.005 0.012 (0.30 mm) Typ. 247-001 0.033 (0.84 mm) Min. -240 404-801 Schematic 1 2 -210 -011 (240) 50° 45° 0.175 (4.44 mm) 0.125 (3.18 mm) 2 Plcs. Schematic 0.064 (1.63 mm) 0.060 (1.52 mm) 2 PLCS 0.098 (2.49 mm) 0.092 (2.34 mm) Cover Dia. 0.025 (0.63 mm) Max. Colored Dot Denotes Cathode 0.104 (2.64 mm) 0.092 (2.34 mm) Sq. 0.005 (1.27 mm) 0.003 (0.76 mm) 0.124 (3.15 mm) 0.119 (3.02 mm) Dia. 0.022 (0.56 mm) 0.018 (0.46 mm) 2 Plcs. 0.042 (1.06 mm) 0.028 (0.71 mm) 325-011 0.225 (5.72 mm) 0.205 (5.20 mm) 0.083 (2.20 mm) 0.077 (1.95 mm) 0.097 (2.46 mm) 0.83 (2.11 mm) 0.064 (1.63 mm) 0.060 (1.52 mm) 023-000 Application Notes For additional information, please refer to the following Application Notes. Design With PIN Diodes Diode Chips, Beam-Lead Diodes, Capacitors: Bonding Methods and Packaging PIN Diode Basics Green Initiative™ Through our Green Initiative,™ we are committed to manufacturing products that comply with global government directives and industry requirements. Skyworks is continuously innovating RF, analog and mixed-signal ICs. For the latest product introductions and information about Skyworks, visit our Web site at www.skyworksinc.com For additional information on our broad overall product portfolio, please contact your local sales office or email us at [email protected]. Skyworks Solutions, Inc. 20 Sylvan Road, Woburn, MA 01801 USA: (781) 376-3000 • Asia: 886 2 2735 0399 x 990 Europe: 33 (0)1 41443660 • Fax: (781) 376-3100 Email: [email protected] • www.skyworksinc.com BRO375-09A Printed on Recycled Paper.