DG408/409 Vishay Siliconix 8-Ch/Dual 4-Ch High-Performance CMOS Analog Multiplexers DESCRIPTION FEATURES The DG408 is an 8-channel single-ended analog multiplexer designed to connect one of eight inputs to a common output as determined by a 3-bit binary address (A0, A1, A2). The DG409 is a dual 4-channel differential analog multiplexer designed to connect one of four differential inputs to a common dual output as determined by its 2-bit binary address (A0, A1). Break-before-make switching action protects against momentary crosstalk between adjacent channels. An on channel conducts current equally well in both directions. In the off state each channel blocks voltages up to the power supply rails. An enable (EN) function allows the user to reset the multiplexer/demultiplexer to all switches off for stacking several devices. All control inputs, address (Ax) and enable (EN) are TTL compatible over the full specified operating temperature range. • • • • • • • Applications for the DG408/409 include high speed data acquisition, audio signal switching and routing, ATE systems, and avionics. High performance and low power dissipation make them ideal for battery operated and remote instrumentation applications. Designed in the 44 V silicon-gate CMOS process, the absolute maximum voltage rating is extended to 44 V. Additionally, single supply operation is also allowed. An epitaxial layer prevents latchup. For additional information please see Technical Article TA201 (FaxBack Number 70600). Low On-Resistance - rDS(on): 100 Ω Low Charge Injection - Q: 20 pC Fast Transition Time - tTRANS: 160 ns Low Power - ISUPPLY: 10 µA Single Supply Capability 44 V Supply Max Rating TTL Compatible Logic Pb-free Available RoHS* COMPLIANT BENEFITS • • • • • • Reduced Switching Errors Reduced Glitching Improved Data Throughput Reduced Power Consumption Increased Ruggedness Wide Supply Ranges (± 5 V to ± 20 V) APPLICATIONS • • • • • • • Data Acquisition Systems Audio Signal Routing ATE Systems Battery Powered Systems High Rel Systems Single Supply Systems Medical Instrumentation FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION Dual-In-Line SOIC and TSSOP DG408 A0 EN VS1 S2 S3 S4 D 1 2 16 Decoders/Drivers Dual-In-Line SOIC and TSSOP DG409 15 3 14 4 13 5 12 6 11 7 10 8 9 A1 A0 A2 EN GND V- V+ S1a S5 S2a S6 S3a S7 S4a S8 Da Top View 1 2 16 Decoders/Drivers 15 3 14 4 13 5 12 6 11 7 10 8 9 A1 GND V+ S1b S2b S3b S4b Db Top View * Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: 70062 S-71155–Rev. G, 11-Jun-07 www.vishay.com 1 DG408/409 Vishay Siliconix TRUTH TABLES AND ORDERING INFORMATION TRUTH TABLE - DG408 TRUTH TABLE - DG409 A2 A1 A0 EN On Switch A1 A0 EN On Switch X X X 0 None X X 0 None 0 0 0 1 1 0 0 1 1 0 0 1 1 2 0 1 1 2 0 1 0 1 3 1 0 1 3 0 1 1 1 4 1 1 1 4 1 0 0 1 5 1 0 1 1 6 1 1 0 1 7 1 1 1 1 8 Logic "0" = VAL ≤ 0.8 V Logic "1" = VAH ≥ 2.4 V X = Don’t Care ORDERING INFORMATION - DG408 ORDERING INFORMATION - DG409 Temp Range Temp Range Package Part Number 16-Pin Plastic DIP 16-Pin SOIC - 40 to 85 °C Package Part Number DG408DJ DG408DJ-E3 16-Pin Plastic DIP DG409DJ DG409DJ-E3 DG408DY DG408DY-E3 DG408DY-T1 DG408DY-T1-E3 16-Pin SOIC DG409DY DG409DY-E3 DG409DY-T1 DG409DY-T1-E3 16-Pin TSSOP DG409DQ DG409DQ-E3 DG409DQ-T1 DG409DQ-T1-E3 DG408DQ DG408DQ-E3 DG408DQ-T1 DG408DQ-T1-E3 16-Pin TSSOP - 40 to 85 °C ABSOLUTE MAXIMUM RATINGS Parameter Limit Voltages Referenced to VDigital Inputsa 25 GND (V-) - 2 to (V+) + 2 or 20 mA, whichever occurs first 30 , VS, VD Current (Any Terminal) Peak Current, S or D (Pulsed at 1 ms, 10 % duty cycle max) Storage Temperature Power Dissipation (Package)b Unit 44 V+ 100 (AK Suffix) - 65 to 150 (DJ, DY Suffix) - 65 to 125 16-Pin Plastic DIPc 450 16-Pin Narrow SOIC and TSSOPd 600 16-Pin CerDIPe LCC-20f 900 V mA °C mW 750 Notes: a. Signals on SX, DX or INX exceeding V+ or V- will be clamped by internal diodes. Limit forward diode current to maximum current ratings. b. All leads soldered or welded to PC board. c. Derate 6 mW/°C above 75 °C. d. Derate 7.6 mW/°C above 75 °C. e. Derate 12 mW/°C above 75 °C. f. Derate 10 mW/°C above 75 °C. www.vishay.com 2 Document Number: 70062 S-71155–Rev. G, 11-Jun-07 DG408/409 Vishay Siliconix SPECIFICATIONSa Test Conditions Unless Otherwise Specified V+ = 15 V, V- = - 15 V A Suffix - 55 to 125 °C D Suffix - 40 to 85 °C Mind Maxd Mind 15 - 15 VAL = 0.8 V, VAH = 2.4 Vf Tempb VANALOG Full rDS(on) VD = ± 10 V, IS = - 10 mA Room Full ΔrDS(on) VD = ± 10 V Room Source Off Leakage Current IS(off) VS = ± 10 V VD = ± 10 V, VEN = 0 V Room Full - 0.5 - 50 0.5 50 - 0.5 -5 0.5 5 Drain Off Leakage Current ID(off) Room Full Room Full Room Full Room Full -1 - 100 -1 - 50 -1 - 100 -1 - 50 1 100 1 50 1 100 1 50 -1 - 20 -1 - 10 -1 - 20 -1 - 10 1 20 1 10 1 20 1 10 2.4 Parameter Analog Switch Symbol Analog Signal Rangee Drain-Source On-Resistance rDS(on) Matching Between Channelsg Drain On Leakage Current ID(on) VD = ± 10 V VS = ± 10 V VEN = 0 V DG408 VS = VD = ± 10 Sequence Each Switch On DG408 DG409 DG409 Typc - 15 40 100 125 15 Maxd Unit 15 V 100 125 Ω 15 % Digital Control Logic High Input Voltage VINH Full Logic Low Input Voltage VINL Full Logic High Input Current IAH VA = 2.4 V, 15 V Full - 10 10 - 10 10 Logic Low Input Current IAL VEN = 0 V, 2.4 V, VA = 0 V Full - 10 10 - 10 10 Logic Input Capacitance Cin f = 1 MHz Room 8 Dynamic Characteristics Transition Time tTRANS See Figure 2 Full 160 Break-Before-Make Interval tOPEN See Figure 4 Enable Turn-On Time tON(EN) Enable Turn-Off Time tOFF(EN) Room Room Full Room Charge Injection Q Off Isolationh OIRR Source Off Capacitance CS(off) Drain Off Capacitance CD(off) Drain On Capacitance CD(on) Power Supplies Positive Supply Current I+ Negative Supply Current I- Positive Supply Current I+ Negative Supply Current I- Document Number: 70062 S-71155–Rev. G, 11-Jun-07 See Figure 3 CL = 10 nF, VS = 0 V VEN = 0 V, RL = 1 kΩ f = 100 kHz VEN = 0 V, VS = 0 V, f = 1 MHz VEN = 0 V VD = 0 V f = 1 MHz DG408 250 115 V µA 250 10 150 225 150 105 150 ns 150 Room 20 pC Room - 75 dB Room 3 Room 26 DG409 Room 14 Room 37 DG409 Room 25 Full 10 Full Room Full Full 1 0.2 VEN = 2.4 V, VA = 0 V 0.8 pF 10 DG408 VEN = VA = 0 V or 5 V 2.4 0.8 nA pF 75 - 75 75 - 75 0.5 2 - 500 0.5 2 - 500 µA mA µA www.vishay.com 3 DG408/409 Vishay Siliconix SPECIFICATIONSa FOR SINGLE SUPPLY Test Conditions Unless Otherwise Specified V+ = 12 V, V- = 0 V Symbol VAL = 0.8 V, VAH = 2.4 Vf Tempb Typc rDS(on) VD = 3 V, 10 V, IS = - 1 mA Room 90 Switching Time of Multiplexere tTRANS VS1 = 8 V, VS8 = 0 V, VIN = 2.4 V Room 180 Enable Turn-On Timee tON(EN) Room 180 e tOFF(EN) VINH = 2.4 V, VINL = 0 V VS1 = 5 V Room 120 Q CL = 1 nF, VS = 6 V, RS = 0 Room 5 Parameter Analog Switch Drain-Source On-Resistancee,f Dynamic Characteristics Enable Turn-Off Time Charge Injectione A Suffix - 55 to 125 °C D Suffix - 40 to 85 °C Mind Mind Maxd Maxd Unit Ω ns 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. g. ΔrDS(on) = rDS(on) MAX - rDS(on) MIN. h. Worst case isolation occurs on Channel 4 due to proximity to the drain pin. 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: 70062 S-71155–Rev. G, 11-Jun-07 DG408/409 Vishay Siliconix TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted 80 60 VS = 0 V for ID(off) VS = VD for ID(on) V+ = 15 V V- = - 15 V 40 60 CD(on) DG408 ID(off) CD(off) I D (pA) C S, D (pF) 20 40 DG409 ID(off) DG409 ID(on) 0 - 20 20 DG408 ID(on) CS(off) - 40 0 - 60 - 15 - 10 -5 0 5 10 15 0 2 VANALOG – Analog Voltage (V) 100 15 - 20 - 60 DG408 ID(on), ID(off) - 140 - 15 5 0 DG409 ID(on) - 100 V+ = 15 V V- = - 15 V 10 DG409 ID(off) IS(off) (pA) I D (pA) 20 V+ = 15 V V- = - 15 V VS = -VD for ID(off) VD = VS(open) for ID(on) 20 12 Drain Leakage Current vs. Source/Drain Voltage (Single 12-V Supply) Source/Drain Capacitance vs. Analog Voltage 60 4 6 8 10 VANALOG – Analog V oltage (V) V+ = 12 V V- = 0 V -5 - 10 - 10 -5 0 5 10 VD or VS - Drain or Source Voltage (V) 15 - 15 Drain Leakage Current vs. Source/DrainVoltage - 10 -5 5 0 VS - Source Voltage (V) 10 15 Source Leakage Current vs. Source Voltage - 100 mA 2.0 VSUPPLY = ± 15 V - 10 mA 1.5 VEN = 2.4 V 1.0 I- V TH (V) - 1 mA - 100 µA - 10 µA VEN = 0 V or 5 V 0.5 - 1 µA 0.0 - 0.1 µA 4 8 12 16 +VSUPPLY (V) Input Switching Threshold vs. Supply Voltage Document Number: 70062 S-71155–Rev. G, 11-Jun-07 20 100 1k 10 k 100 k 1M 10 M Switching Frequency (Hz) Negative Supply Current vs. Switching Frequency www.vishay.com 5 DG408/409 Vishay Siliconix TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted 100 mA 100 µA VSUPPLY = 15 V 10 µA I+ 10 mA 1 µA 100 nA I+, I- I+ VEN = 2.4 V 1 mA 10 nA 1 nA 100 µA - (I-) VEN = 0 V or 5 V VSUPPLY = ± 15 V VA = 0 V VEN = 0 V 100 pA 10 µA 10 pA 100 1k 10 k 100 k 1M 10 M - 55 - 35 5 - 15 Switching Frequency (Hz) 45 25 85 65 105 125 Temperature (°C) Positive Supply Current vs. Switching Frequency ISUPPLY vs. Temperature 90 CL = 10000 pF VIN = 5 Vp-p 80 20 70 60 10 Q (pC) I+ (µA) 15 V+ = 15 V V- = - 15 V VIN = 0 V VEN = 0 V 50 V+ = 15 V V- = - 15 V 40 30 20 5 10 V+ = 12 V V- = 0 V 0 0 - 55 5 - 35 - 15 45 25 85 65 105 - 10 - 15 125 - 10 Temperature (°C) -5 5 0 10 15 VS - Source Voltage (V) Positive Supply Current vs. Temperature (DG408) Charge Injection vs. Analog Voltage 160 120 140 V+ = 7.5 V 100 ±5V 120 10 V 100 r DS(on) (Ω) r DS(on) (Ω) 80 ±8V ± 10 V ± 12 V 60 12 V 80 15 V 60 20 V 40 22 V 40 ± 20 V 20 0 - 20 V- = 0 V ± 15 V 20 0 - 16 - 12 -8 -4 0 4 8 12 VD - Drain Voltage (V) rDS(on) vs. VD and Supply www.vishay.com 6 16 20 0 4 8 12 16 20 22 VD - Drain Voltage (V) rDS(on) vs. VD and Supply (Single Supply) Document Number: 70062 S-71155–Rev. G, 11-Jun-07 DG408/409 Vishay Siliconix TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted 80 130 V+ = 15 V V- = - 15 V 70 125 °C 110 85 °C 60 125 °C 85 °C 40 25 °C r DS(on) (Ω) r DS(on) (Ω) 90 50 30 25 °C 70 0 °C - 40 °C 50 20 0 °C - 40 °C - 55 °C - 55 °C 30 10 0 V+ = 12 V V- = 0 V 10 - 15 - 10 0 -5 5 10 15 2 0 VS - Source Voltage (V) 10 8 12 VS - Source Voltage (V) rDS(on) vs. VS and Temperature rDS(on) vs. VS and Temperature (Single Supply) - 150 1 RL = 1 kΩ V+ = 15 V V- = - 15 V RL = 1 kΩ - 130 0 V+ = 15 V V- = - 15 V Ref. 1 Vrms -1 LOSS (dB) - 110 (dB) 6 4 - 90 Off-Isolation - 70 -2 -3 -4 Crosstalk - 50 RL = 50 Ω -5 - 30 -6 100 1k 100 k 10 k 1M 10 M 10 100 M 100 1k f - Frequency (Hz) 10 k 100 k 1M 10 M 100 M f - Frequency (Hz) Insertion Loss vs. Frequency Off Isolation and Crosstalk vs. Frequency 275 200 tTRANS 250 175 225 t (ns) t (ns) 150 200 tTRANS 175 125 tOFF(EN) tOFF(EN) 150 tON(EN) 100 125 tON(EN) 75 ± 10 100 ± 12 ± 14 ± 16 ± 18 ± 20 VSUPPLY (V) Switching Time vs. Bipolar Supply) Document Number: 70062 S-71155–Rev. G, 11-Jun-07 ± 22 8 9 10 11 12 13 14 15 VSUPPLY (V) Switching Time vs. Single Supply www.vishay.com 7 DG408/409 Vishay Siliconix SCHEMATIC DIAGRAM (TYPICAL CHANNEL) V+ VREF GND D A0 V+ Level Shift AX V- Decode/ Drive S1 V+ EN Sn V- Figure 1. TEST CIRCUITS + 15 V V+ A2 S1 A1 ± 10 V S2 - S7 A0 DG408 S8 EN ± 10 V VO D GND V- 50 % 0V 35 pF 300 Ω 50 Ω Logic Input tr < 20 ns tf < 20 ns 3V - 15 V VS1 90 % Switch Output + 15 V VO 0V V+ A1 A0 ± 10 V S1 90 % VS8 S1a - S4a, Da DG409 S4b S1 ON GND S8 ON VO Db EN tTRANS tTRANS ± 10 V V300 Ω 50 Ω 35 pF - 15 V Figure 2. Transition Time www.vishay.com 8 Document Number: 70062 S-71155–Rev. G, 11-Jun-07 DG408/409 Vishay Siliconix TEST CIRCUITS + 15 V V+ S1 -5V EN S2 - S8 A0 DG408 A1 A2 GND VO D V- 50 Ω Logic Input 50 % 0V 35 pF 1 kΩ tr < 20 ns tf < 20 ns 3V tON(EN) - 15 V tOFF(EN) 0V + 15 V Switch Output VO V+ S1b 90 % -5V VO EN A0 A1 10 % S1a - S4a, Da S2b - S4b DG409 Db GND VO V- 50 Ω 35 pF 1 kΩ - 15 V Figure 3. Enable Switching Time + 15 V EN + 2.4 V V+ Logic Input All S and Da +5V tr < 20 ns tf < 20 ns 3V 50 % 0V A0 DG408 DG409 A1 A2 GND 50 Ω Db, D VO VS V- - 15 V 300 Ω 80 % Switch Output 35 pF VO 0V tOPEN Figure 4. Break-Before-Make Interval Document Number: 70062 S-71155–Rev. G, 11-Jun-07 www.vishay.com 9 DG408/409 Vishay Siliconix TEST CIRCUITS + 15 V Rg V+ SX Logic Input EN OFF ON OFF 0V A0 Channel Select 3V VO D A1 CL 10 nF A2 GND V- ΔVO Switch Output ΔVO is the measured voltage due to charge transfer error Q, when the channel turns off. Q = CL x ΔVO - 15 V Figure 5. Charge Injection + 15 V + 15 V VIN VIN VS Rg = 50 Ω V+ S1 V+ SX SX VS S8 S8 A0 D VO A1 A0 Rg = 50 Ω A2 GND A1 RL 1 kΩ V- EN VO D A2 EN GND - 15 V RL 1 kΩ V- - 15 V VOUT Off Isolation = 20 log Crosstalk = 20 log VIN VOUT VIN Figure 6. Off Isolation Figure 7. Crosstalk + 15 V + 15 V VS V+ S1 V+ Rg = 50 Ω A0 D VO A1 A2 GND EN V- Channel Select HP4192A Impedance Analyzer or Equivalent S8 A1 D GND - 15 V Meter A2 A0 RL 1 kΩ Insertion Loss = 20 log S1 VOUT EN f = 1 MHz V- 15 V VIN Figure 8. Insertion Loss www.vishay.com 10 Figure 9. Source Drain Capacitance Document Number: 70062 S-71155–Rev. G, 11-Jun-07 DG408/409 Vishay Siliconix APPLICATIONS HINTS Overvoltage Protection A very convenient form of overvoltage protection consists of adding two small signal diodes (1N4148, 1N914 type) in series with the supply pins (see Figure 10). This arrangement effectively blocks the flow of reverse currents. It also floats the supply pin above or below the normal V+ or V- value. In this case the overvoltage signal actually becomes the power supply of the IC. From the point of view of the chip, nothing has changed, as long as the difference VS - (V-) doesn’t exceed + 44 V. The addition of these diodes will reduce the analog signal range to 1 V below V+ and 1 V above V-, but it preserves the low channel resistance and low leakage characteristics. V+ 1N4148 SX D Vg DG408 1N4148 V- Figure 10. Overvoltage Protection Using Blocking Diodes Differential 4-Channel Sequential Multiplexer/Demultiplexer 8-Channel Sequential Multiplexer/Demultiplexer + 15 V V+ S1 GND V+ S1a VAnalog Output (Input) S2 S3 Analog Inputs (Outputs) S4 + 15 V - 15 V DG408 D S5 Clock In NC DM7493 QB QC QA r01 r02 GND NC Differential Analog Outputs (Inputs) DG409 S1b S2b Db S3b A1 A2 S4b A0 EN QD AIN Da S4a + 15 V BIN V- S3a Differential Analog Inputs (Outputs) S7 S8 A0 GND S2a S6 + 15 V - 15 V Clock In J Q 1/2 MM74C73 CLK K CLEAR + 15 V Q GND A1 EN J Q 1/2 MM74C73 CLK NC Q K NC CLEAR 6 Enable In Reset Enable (MUX On-Off Control) Figure 11. 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?70062. Document Number: 70062 S-71155–Rev. G, 11-Jun-07 www.vishay.com 11 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