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| DG449 Vishay Siliconix High Voltage Single SPDT Analog Switch in SOT23-8 DESCRIPTION The DG449 is a dual supply single-pole/double-throw (SPDT) switches. On resistance is 38 and flatness is 2.6 max over the specified analog signal range. These analog switches were designed to provide high speed, low error switching of precision analog signals. The primary application areas are in the routing and switching in telecommunications and test equipment. Combining low power, low leakages, low on-resistance and small physical size, the DG449 is also ideally suited for portable and battery powered industrial and military equipment. The DG449 operates either from a single + 7 V to 36 V supply or from dual 4.5 V to 20 V supplies. It is offered in the very popular, small SOT23-8 package. FEATURES * * * * * * 15 V Analog Signal Range On-Resistance - rDS(on): 38 max VL Logic Supply Not Required TTL CMOS Input Compatible Rail To Rail Signal Handling Dual Or Single Supply Operation RoHS COMPLIANT BENEFITS * * * * * * Wide Dynamic Range Low Signal Errors and Distortion Break-Before-Make Switching Action Simple Interfacing Small SOT23-8ld package; Reduced Board Space Improved Reliability APPLICATIONS * * * * * * * * Precision Test Equipment Precision Instrumentation Communications Systems PBX, PABX Systems Audio Equipment Redundant Systems PC Multimedia Boards Hard Disc Drives FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION DG449 TRUTH TABLE Logic 0 1 Logic "0" 0.8 V Logic "1" 2.4 V NC ON OFF NO OFF ON Document Number: 73897 S-60861-Rev. A, 22-May-06 www.vishay.com 1 DG449 Vishay Siliconix ORDERING INFORMATION Temp Range - 40 to 85 C Package 8-Pin SOT23 Part Number DG449DS-T1-E3 ABSOLUTE MAXIMUM RATINGS TA = 25 C, unless otherwise noted Parameter (Voltages Referenced to V-) V+ GND Digital Inputsa, Vno/nc, VCOM Current , (Any Terminal) Continuous Current (NO, NC or COM) Pulsed at 1 ms, 10 % duty cycle Storage Temperature b c Symbol Limit 44 25 (V-) - 2 V to (V+) + 2 V or 30 mA, whichever occurs first 30 100 - 65 to 150 Unit V mA C mW 675 8-Pin SOT-23 Power Dissipation (Package) Notes: a. Signals on NO, NC, COM, or IN exceeding V+ or V- will be clamped by internal diodes. Limit forward diode current to maximum current ratings. b. All leads welded or soldered to PC Board. c. Derate 8.4 mW/C above 70 C. www.vishay.com 2 Document Number: 73897 S-60861-Rev. A, 22-May-06 DG449 Vishay Siliconix SPECIFICATIONSa Test Conditions Unless Otherwise Specified V+ = 15 V, V- = - 15 V Parameter Analog Switch Analog Signal Rangee On-Resistance On Resistance MATCH On-Resistance Flatness VANALOG rON rON rON Flatness Ino/nc(off) Switch Off Leakage Current ICOM(off) Channel On Leakage Current Digital Control Input, High Voltage Input, Low Voltage Input Capacitancee Input Current VIN High or Low Dynamic Characteristics Turn-On Time Turn-Off Time Charge Injectione Off-Isolatione Crosstalke Source NO, NC Off Capacitancee Channel On Capacitance Power Supplies Positive Supply Current Negative Supply Current I+ IV+ = 16.5 V, V- = - 16.5 V VIN = 0, 5 V or, V+ Room Full Room Full 4 -1 -3 20 30 A e D Suffix - 40 to 85 C Tempb Full Mind - 15 38 Typc Maxd 15 45 57 5 6 7 8 1 10 1 10 2 20 Unit V Symbol VIN = 2.4 V, 0.8 Vf Ino/nc = 1 mA, VCOM = 8.5 V V+ = 13.5 V, V- = - 13.5 V Ino/nc = 1 mA, VCOM = 5 V, 0 V V+ = 13.5 V, V- = - 13.5 V V+ = 16.5, V- = - 16.5 V VCOM = 15.5 V Vno/nc = -/+ 15.5 V V+ = 16.5 V, V- = - 16.5 VCOM = Vno/nc = 15.5 V Room Full Room Full Room Full Room Full Room Full Room Full -1 - 10 -1 - 10 -2 - 20 2.6 - 0.1 - 0.1 - 0.1 nA ICOM(on) IINH IINL CIN IIN VIN = 0 or 5 V Full Full Room 2.4 0.8 4 -1 1 107 69 5 - 69 - 80 8 18 146 155 104 116 V pF A tON tOFF Q OIRR XTALK Cno/nc(off) CCOM(on) RL = 300 , CL = 35 pF Vno/nc = 10 V CL = 1 nF, Vgen = 0 V, Rgen = 0 RL = 50 , CL= 5 pF, f = 1 MHz RL = 50 , CL= 5 pF, f = 1 MHz f = 1 MHz f = 1 MHz Room Full Room Full Room Room Room Room ns pC dB pF Document Number: 73897 S-60861-Rev. A, 22-May-06 www.vishay.com 3 DG449 Vishay Siliconix SPECIFICATIONSa Test Conditions Unless Otherwise Specified V+ = 12 V, V- = 0 V Parameter Analog Switch Analog Signal Rangee On-Resistance On-Resistance MATCH On-Resistance Flatness Dynamic Characteristics Turn-On Time Turn-Off Time Charge Injectione Power Supplies Positive Supply Current I+ V+ = 13.2 V, VIN = 0 V, 5 V or V+ Room Full 3 20 30 A tON tOFF Q CL = 1 nF, Vgen = 0 V, Rgen = 0 VNO, NC = 10 V, RL = 300 , CL = 35 pF Room Full Room Full Room 133 58 6 168 192 92 96 nS VANALOG rON rON rON Flatness Ino/nc = 1 mA, VCOM = 3, 8 V V+ = 10.8 V Ino/nc = 1 mA, VCOM = 2, 6, 10 V V+ = 10.8 V Full Room Full Room Full Room Full 0 67 12 85 96 4 5 25 31 V Symbol VIN = 2.4 V, 0.8 Vf Tempb Mind D Suffix - 40 to 85 C Typc Maxd Unit 17 pC Notes: a. Refer to PROCESS OPTION FLOWCHART . b. Room = 25 C, Full = as determined by the operating temperature suffix. c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. d. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet. e. Guaranteed by design, not subject to production test. f. VIN = input voltage to perform proper function. Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. www.vishay.com 4 Document Number: 73897 S-60861-Rev. A, 22-May-06 DG449 Vishay Siliconix TYPICAL CHARACTERISTICS TA = 25 C, unless otherwise noted 105 95 85 r ON - On-Resistance () 75 65 12 V 55 45 35 25 15 5 - 20 20 V 13.5 V 8V 15 V 10 V 4.5 V I NO or I NC = 1 mA TA = 25 C r ON - On-Resistance () 140 120 100 V+ = 9 V 80 60 40 20 0 - 15 - 10 -5 0 5 10 15 20 0 4 8 12 16 20 24 28 32 36 VCOM - Analog Voltage (V) VCOM - Analog Voltage (V) V+ = 10.8 V V+ = 12 V V+ = 20 V V+ = 24 V V+ = 36 V V+ = 7 V I NO or I NC = 1 mA TA = 25 C rON vs. VCOM and Dual Supply Voltage 65 V+ = + 15 V V- = - 15 V 55 r ON - On-Resistance () r ON - On-Resistance () I NO or I NC = 1 mA On Resistance vs. VCOM and Single Supply Voltage 105 95 85 75 65 55 45 35 25 15 + 25 C + 85 C V+ = + 12 V V- = 0 V I NO or I NC = 1 mA 45 + 85 C 35 + 25 C 25 - 40 C 15 - 40 C 5 - 15 5 - 10 -5 0 5 10 15 0 2 4 6 8 10 12 VCOM - Analog Voltage (V) VCOM - Analog Voltage (V) On Resistance vs. VCOM and Temperature 250 200 I S , I D Leakage Current (pA) 150 100 50 0 - 50 - 100 - 150 - 200 - 250 - 20 ICOM(off) INO(off) /I NC(off) ICOM(on) V+ = + 16.5 V V- = - 16.5 V T = 25 C 10000 Leakage Current (pA) 100000 On Resistance vs. VCOM and Temperature ICOM(on) 1000 INO(off) /I NC(off) 100 10 ICOM(off) 1 - 60 - 40 - 20 V+ = + 16.5 V V- = - 16.5 V - 15 - 10 -5 0 5 10 15 20 0 20 40 60 80 100 120 140 VCOM ,V , VNC - Drain-Source Voltage NO Temperature (C) Leakage Current vs. Analog Voltage Leakage Current vs. Temperature Document Number: 73897 S-60861-Rev. A, 22-May-06 www.vishay.com 5 DG449 Vishay Siliconix TYPICAL CHARACTERISTICS TA = 25 C, unless otherwise noted 1000 100 Supply Current (A) I+ IGND Supply Current (A) 10 1 0.1 0.01 0.001 0.0001 I0.00001 - 60 - 40 - 20 0 20 40 60 V+ = + 15 V V- = - 15 V 1 80 100 120 140 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Temperature (C) 100 V+ = 12 V V- = 0 V + 25 C 10 V+ = 15 V V- = - 15 V Vin Input Voltage (V) Supply Current vs. Temperature 10 m V+ = + 15 V V- = - 15 V 1m Supply Current (A) 125 150 Supply Current vs. Input Voltage V = 15 V t ON 100 t ON , t OFF (ns) 100 I+ I 10 GND 75 t OFF 50 1 I100 n 25 10 100 1K 10K 100K 1M 10M - 55 - 35 - 15 5 25 45 10 n Supply Voltage (V) 65 85 105 125 Temperature (C) Supply Current vs. Input Switching Frequency 280 240 Loss, OIRR, X TA LK (dB) 200 t ON , t OFF (ns) 160 120 80 40 0 - 55 t OFF V = + 12 V t ON V = + 12 V 10 0 - 10 - 20 - 30 - 40 - 50 - 60 - 70 - 80 - 90 - 100 - 110 - 35 - 15 5 25 45 65 85 105 125 Switching Time vs. Temperature and Single Supply Voltage LOSS OIRR X TALK V = + 15 V V- = - 15 V RL = 50 100K 1M 10M Frequency (Hz) 100M 1G Temperature (C) Switching Time vs. Temperature and Single Supply Voltage Insertion Loss, Off-Isolation, Crosstalk vs. Frequency www.vishay.com 6 Document Number: 73897 S-60861-Rev. A, 22-May-06 DG449 Vishay Siliconix TYPICAL CHARACTERISTICS TA = 25 C, unless otherwise noted 3.0 50 40 2.5 V - Switching Threshold (V) T Q - Charge Injection (pC) 30 20 10 0 - 10 - 20 - 30 - 40 0 0 5 10 15 20 25 30 - 50 - 15 - 12 - 9 -6 -3 0 3 6 9 12 15 V = 15 V V+ = + 12 V 2.0 1.5 1.0 0.5 Supply Voltage (V) VNO, VNC - Analog Voltage (V) Switching Threshold vs. Supply Voltage Charge Injection vs. Analog Voltage TEST CIRCUITS VO is the steady state output with the switch on. + 15 V Logic Input V+ Vi NO or NC IN GND VRL 300 CL 35 pF COM 0V VO Switch Input VS VO 90 % tOFF 3V 50 % tr < 20 ns tf < 20 ns -15 V CL (includes fixture and stray capacitance) VO = Vi RL RL + rON Switch Output 0V tON Note: Logic input waveform is inverted for switches that have the opposite logic sense. Figure 1. Switching Time + 15 V VO VO VO CL 1 nF IN OFF ON OFF Rgen V+ NO or NC IN COM V gen 3V GND V- Q = VO x CL - 15 V Figure 2. Charge Injection Document Number: 73897 S-60861-Rev. A, 22-May-06 www.vishay.com 7 DG449 Vishay Siliconix + 15 V C V+ + 15 V C V+ COM VS Rg = 50 0V, 2.4 V NO or NC COM VO VS Rg = 50 NO or NC VO RL IN RL , 0 V 2.4 V GND -V- C IN GND VC - 15 V VCOM VNO/NC - 15 V Off Isolation = 20 log Figure 3. Off Isolation Figure 4. Insertion Loss + 15 V C V+ COM Meter 0 V , 2.4 V IN HP4192A Impedance Analyzer or Equivalent f = 1 MHz C NO or NC GND V- - 15 V Figure 5. Channel ON/OFF Capacitances Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and reliability data, see http://www.vishay.com/ppg?73897. www.vishay.com 8 Document Number: 73897 S-60861-Rev. A, 22-May-06 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, "Vishay"), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1 |
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