DG417/418/419 Vishay Siliconix Precision CMOS Analog Switches DESCRIPTION FEATURES The DG417/418/419 monolithic CMOS analog switches powered industrial and military applications requiring high • • • • • • performance and efficient use of board space. • 44 V Supply Max Rating were designed to provide high performance switching of analog signals. Combining low power, low leakages, high speed, low on-resistance and small physical size, the DG417 series is ideally suited for portable and battery To achieve high-voltage ratings and superior switching performance, the DG417 series is built on Vishay Siliconix’s high voltage silicon gate (HVSG) process. Break-beforemake is guaranteed for the DG419, which is an SPDT configuration. An epitaxial layer prevents latchup. Each switch conducts equally well in both directions when on, and blocks up to the power supply level when off. The DG417 and DG418 respond to opposite control logic levels as shown in the Truth Table. ± 15 V Analog Signal Range On-Resistance - rDS(on): 20 Ω Fast Switching Action - tON: 100 ns Ultra Low Power Requirements - PD: 35 nW TTL and CMOS Compatible MiniDIP and SOIC Packaging Pb-free Available RoHS* COMPLIANT BENEFITS • • • • • • Wide Dynamic Range Low Signal Errors and Distortion Break-Before-Make Switching Action Simple Interfacing Reduced Board Space Improved Reliability APPLICATIONS • • • • • • • Precision Test Equipment Precision Instrumentation Battery Powered Systems Sample-and-Hold Circuits Military Radios Guidance and Control Systems Hard Disk Drives FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION DG417 Dual-In-Line and SOIC TRUTH TABLE S 1 8 D NC 2 7 V- GND 3 6 IN V+ 4 5 VL Logic 0 1 DG417 ON OFF DG418 OFF ON Logic "0" ≤ 0.8 V Logic "1" ≥ 2.4 V Top View DG419 Dual-In-Line and SOIC D 8 1 TRUTH TABLE - DG419 S2 S1 2 7 V- GND 3 6 IN V+ 4 5 VL Logic SW1 SW2 0 ON OFF 1 OFF ON Logic "0" ≤ 0.8 V Logic "1" ≥ 2.4 V Top View * Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: 70051 S-71241–Rev. F, 25-Jun-07 www.vishay.com 1 DG417/418/419 Vishay Siliconix ORDERING INFORMATION Temp Range DG417/DG418 Package Part Number 8-Pin Plastic MiniDIP DG417DJ DG417DJ-E3 DG418DJ DG418DJ-E3 DG417DY DG417DY-E3 DG417DY-T1 DG417DY-T1-E3 - 40 to 85 °C 8-Pin Narrow SOIC DG418DY DG418DY-E3 DG418DY-T1 DG418DY-T1-E3 DG419 8-Pin Plastic MiniDIP DG419DJ DG419DJ-E3 8-Pin Narrow SOIC DG419DY DG419DY-E3 DG419DY-T1 DG419DY-T1-E3 - 40 to 85 °C ABSOLUTE MAXIMUM RATINGS Parameter Voltages Referenced V+ to V- Limit 44 GND VL Unit 25 (GND - 0.3) to (V+) + 0.3 (V-) - 2 to (V+) + 2 or 30 mA, whichever occurs first 30 a Digital Inputs , VS, VD Current , (Any Terminal) Continuous Current, S or D (Pulsed at 1 ms, 10 % duty cycle) Storage Temperature 100 (AK Suffix) - 65 to 150 (DJ, DY Suffix) - 65 to 125 8-Pin Plastic MiniDIPc b Power Dissipation (Package) 8-Pin Narrow SOIC e d V mA °C 400 400 mW 600 8-Pin CerDIP 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 welded or soldered to PC Board. c. Derate 6 mW/°C above 75 °C. d. Derate 6.5 mW/°C above 75 °C. e. Derate 12 mW/°C above 75 °C. www.vishay.com 2 Document Number: 70051 S-71241–Rev. F, 25-Jun-07 DG417/418/419 Vishay Siliconix SCHEMATIC DIAGRAM (TYPICAL CHANNEL) V+ S VL VLevel Shift/ Drive VIN V+ GND D V- Figure 1. SPECIFICATIONSa Test Conditions Unless Otherwise Specified V+ = 15 V, V- = - 15 V Parameter Analog Switch Symbol Analog Signal Rangee VANALOG Drain-Source On-Resistance rDS(on) VL = 5 V, VIN = 2.4 V, 0.8 Vf Tempb IS = - 10 mA, VD = ± 12.5 V V+ = 13.5 V, V- = - 13.5 V Room Full 20 Room Full Room Full Room Full Room Full Room Full - 0.1 Full IS(off) V+ = 16.5, V- = - 16.5 V VD = ± 15.5 V Switch Off Leakage Current ID(off) VS = ± 15.5 V DG417 DG418 DG419 Channel Off Leakage Current ID(on) Typc V+ = 16.5 V, V- = - 16.5 V VS = VD = ± 15.5 V DG417 DG418 DG419 A Suffix - 55 to 125 °C D Suffix - 40 to 85 °C Mind Maxd Mind 15 - 15 - 15 - 0.1 - 0.1 - 0.4 - 0.4 35 45 Maxd Unit 15 V 35 45 Ω nA - 0.25 - 20 - 0.25 - 20 - 0.75 - 60 - 0.4 - 40 - 0.75 - 60 0.25 20 0.25 20 0.75 60 0.4 40 0.75 60 - 0.25 -5 - 0.25 -5 - 0.75 - 12 - 0.4 - 10 - 0.75 - 12 0.25 5 0.25 5 0.75 12 0.4 10 0.75 12 Digital Control Input Current VIN Low IIL Full 0.005 - 0.5 0.5 - 0.5 0.5 Input Current VIN High IIH Full 0.005 - 0.5 0.5 - 0.5 0.5 DG417 DG418 Room Full 100 175 250 175 250 DG417 DG418 Room Full 60 145 210 145 210 DG419 Room Full 175 250 175 250 DG419 Room 13 µA Dynamic Characteristics Turn-On Time tON Turn-Off Time tOFF Transition Time tTRANS Break-Before-Make Time Delay (DG403) tD Charge Injection Q Source Off Capacitance CS(off) Drain Off Capacitance CD(off) Channel On Capacitance Document Number: 70051 S-71241–Rev. F, 25-Jun-07 CD(on) RL = 300 Ω, CL = 35 pF VS = ± 10 V See Switching Time Test Circuit RL = 300 Ω, CL = 35 pF VS1 = ± 10 V, VS2 = ± 10 V RL = 300 Ω, CL = 35 pF VS1 = VS2 = ± 10 V CL = 10 nF, Vgen = 0 V, Rgen = 0 Ω f = 1 MHz, VS = 0 V f = 1 MHz, VS = 0 V DG417 DG418 DG417 DG418 DG419 Room 60 Room 8 Room 8 Room 30 Room 35 5 ns 5 pC pF www.vishay.com 3 DG417/418/419 Vishay Siliconix SPECIFICATIONSa Test Conditions Unless Otherwise Specified V+ = 15 V, V- = - 15 V Parameter Power Supplies Symbol Positive Supply Current I+ Negative Supply Current I- Logic Supply Current IL Ground Current VL = 5 V, VIN = 2.4 V, 0.8 Vf Tempb Typc 0.001 V+ = 16.5 V, V- = - 16.5 V VIN = 0 or 5 V Room Full Room Full Room Full Room Full IGND - 0.001 A Suffix - 55 to 125 °C D Suffix - 40 to 85 °C Mind Mind 1 5 -1 -5 0.001 - 0.0001 Maxd Maxd 1 5 -1 -5 1 5 -1 -5 Unit 1 5 µA -1 -5 SPECIFICATIONS FOR UNIPOLAR SUPPLIESa Test Conditions Unless Otherwise Specified V+ = 12 V, V- = 0 V Parameter Analog Switch Symbol Analog Signal Rangee VANALOG Drain-Source On-Resistance rDS(on) VL = 5 V, VIN = 2.4 V, 0.8 Vf Tempb Typc Full IS = - 10 mA, VD = 3.8 V V+ = 10.8 V Room 40 A Suffix - 55 to 125 °C D Suffix - 40 to 85 °C Mind Maxd Mind Maxd Unit 0 12 0 12 V Ω Dynamic Characteristics Turn-On Time tON Turn-Off Time tOFF Break-Before-Make Time Delay tD Charge Injection Q Power Supplies Positive Supply Current Negative Supply Current Logic Supply Current Ground Current RL = 300 Ω, CL = 35 pF, VS = 8 V See Switching Time Test Circuit DG419 Only RL = 300 Ω, CL = 35 pF CL = 10 nF, Vgen = 0 V, Rgen = 0 Ω I+ IIL IGND V+ = 13.2 V, VL = 5.25 V VIN = 0 or 5 V Room 110 Room 40 Room 60 Room 5 Room 0.001 Room - 0.001 Room 0.001 Room - 0.001 ns pC µA 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: 70051 S-71241–Rev. F, 25-Jun-07 DG417/418/419 Vishay Siliconix TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted 50 40 ID = - 10 mA ±5V 40 TA = 125 °C 30 r DS(on) (Ω) r DS(on) (Ω) ±8V 30 ± 10 V ± 12 V ± 15 V 20 ± 20 V 25 °C 20 - 55 °C 10 10 0 0 - 20 - 15 - 10 -5 0 10 5 15 20 - 15 - 10 -5 VD – Drain Voltage (V) 0 5 10 VD – Drain Voltage (V) rDS(on) vs. VD and Supply Voltage rDS(on) vs. Temperature 30 200 V+ = 15 V V- = - 15 V VL = 5 V 20 CL = 10 nF V+ = 16.5 V V- = - 16.5 V VL = 5 V VIN = 0 V 150 1 nF DG417/418: I D(off), IS(off) DG419: I S(off) 10 500 pF Q (pC) 100 I (pA) 15 0 100 pF 50 DG417/418: I D(on) DG419: I D(off), ID(on) - 10 0 - 20 - 30 - 50 - 15 - 10 -5 0 5 10 15 - 15 -5 - 10 0 5 10 VD or V S – Drain or Source Voltage (V) VS – Source Voltage (V) Leakage Currents vs. Analog Voltage Drain Charge Injection 15 3.5 3.0 V TH (V) 2.5 VL = 7 V 2.0 1.5 VL = 5 V 1.0 0.5 0 (V+) 5 10 15 20 25 30 35 40 Input Switching Threshold vs. Supply Voltages Document Number: 70051 S-71241–Rev. F, 25-Jun-07 www.vishay.com 5 DG417/418/419 Vishay Siliconix TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted 140 120 V+ = 15 V, V- = - 15 V VL = 5 V, V IN = 3 V Pulse 100 tON 120 DG417/418/419 Source 2 DG419 Source 1 80 tOFF (dB) t ON , t OFF (ns) 100 80 60 60 40 40 20 V+ = 15 V V- = - 15 V VL = 5 V 20 0 0 - 55 - 40 - 20 0 20 40 60 80 100 100 120 1k 10 k 100 k 10 M 1M 100 M Temperature (°C) f – Frequency (Hz) Switching Time vs. Temperature Crosstalk and Off Isolation vs. Frequency 130 80 120 110 100 tON V- = 0 V VL = 5 V VIN = 3 V t ON , t OFF (ns) t ON , t OFF (ns) 70 60 tON 90 V- = 0 V VL = 5 V VIN = 3 V 80 70 60 50 50 tOFF tOFF 40 40 ± 10 30 ± 11 ± 12 ± 13 ± 14 ± 15 10 ± 16 11 12 13 14 15 Supply Voltage (V) V+ Supply Voltage (V) Switching Time vs. Supply Voltages Switching Time vs. V+ 10 mA 16 1 µA V+ = 15 V, V- = - 15 V VL = 5 V, V IN = 5 V, 50 % D Cycle 100 nA V+ = 16.5 V, V- = - 16.5 V VL = 5 V, V IN = 0 V 1 mA I SUPPLY I SUPPLY 10 nA 100 µA I+, I10 µA I+, I- 1 nA 100 pA IL IGND 10 pA 1 µA 1 pA 100 nA 100 1k 10 k 100 k 1M 10 M 0.1 pA - 55 - 40 - 20 0 20 40 60 80 100 f – Frequency (Hz) Temperature (°C) Power Supply Currents vs. Switching Frequency Supply Current vs. Temperature www.vishay.com 6 120 Document Number: 70051 S-71241–Rev. F, 25-Jun-07 DG417/418/419 Vishay Siliconix TEST CIRCUITS VO is the steady state output with the switch on. +5V + 15 V 3V Logic Input VL V+ 0V D S ± 10 V tr < 20 ns tf < 20 ns 50 % VO tOFF IN GND RL 300 Ω V- CL 35 pF - 15 V CL (includes fixture and stray capacitance) Switch Input VS Switch Output 0V Note: RL VO = V S VO 90 % tON Logic input waveform is inverted for switches that have the opposite logic sense. RL + rDS(on) Figure 2. Switching Time (DG417/418) +5V + 15 V Logic Input VL VS1 VS2 V+ S1 3V tr < 20 ns tf < 20 ns 0V D VO S2 RL 300 Ω IN Switch Output V- GND VS1 = VS2 VO CL 35 pF 90 % 0V tD tD CL (includes fixture and stray capacitance) - 15 V Figure 3. Break-Before-Make (DG419) +5V VL VS1 VS2 + 15 V V+ S1 D VO Logic Input 3V 0V S2 RL 300 Ω IN GND tr < 20 ns tf < 20 ns 50 % tTRANS CL 35 pF tTRANS VS1 V01 V- - 15 V 90 % Switch Output VS2 V02 10 % CL (includes fixture and stray capacitance) VO = VS RL RL + rDS(on) Figure 4. Transition Time (DG419) Document Number: 70051 S-71241–Rev. F, 25-Jun-07 www.vishay.com 7 DG417/418/419 Vishay Siliconix TEST CIRCUITS Rg +5V - 15 V VL V+ S ΔVO VO D VO IN INX OFF CL 10 nF 3V ON V- GND OFF Q = ΔVO x CL - 15 V Figure 5. Charge Injection + 15 V +5V C +5V C + 15 V C VL S1 VS VL D Rg = 50 Ω V+ S VS VO D Rg = 50 Ω 50 Ω VO C V+ S2 RL IN 0 V, 2.4 V RL GND IN V- C 0.8 V GND C V- - 15 V - 15 V XTA LK Isolation = 20 log C = RF bypass Off Isolation = 20 log VS VO VS VO Figure 7. Off Isolation Figure 6. Crosstalk (DG419) +5V + 15 V C C VL V+ S VS D VO Rg = 50 Ω RL IN 0 V, 2.4 V GND V- C - 15 V Figure 8. Insertion Loss www.vishay.com 8 Document Number: 70051 S-71241–Rev. F, 25-Jun-07 DG417/418/419 Vishay Siliconix TEST CIRCUITS +5V + 15 V + 15 V C C VL V+ S V+ S2 DG417/418 IN V- 0 V, 2.4 V HP4192A Impedance Analyzer or Equivalent D GND Meter HP4192A Impedance Analyzer or Equivalent IN D2 D1 GND f = 1 MHz C S1 DG419 Meter 0 V, 2.4 V NC C VC f = 1 MHz - 15 V - 15 V Figure 9. Source/Drain Capacitances APPLICATIONS Switched Signal Powers Analog Switch The analog switch in Figure 10 derives power from its input signal, provided the input signal amplitude exceeds 4 V and its frequency exceeds 1 kHz. A positive input pulse turns on the clamping diode D1 and charges C1. The charge stored on C1 is used to power the chip; operation is satisfactory because the switch requires less than 1 µA of stand-by supply current. Loading of the signal source is imperceptible. The DG419’s on-resistance is a low 100 Ω for a 5 V input signal. This circuit is useful when signals have to be routed to either of two remote loads. Only three conductors are required: one for the signal to be switched, one for the control signal and a common return. D1 C1 0.01 µF VL V+ S1 D VOUT Input S2 RL2 10 kΩ IN Control DG419 GND V- RL1 10 kΩ Figure 10. Switched Signal Powers Remote SPDT Analog Switch Document Number: 70051 S-71241–Rev. F, 25-Jun-07 www.vishay.com 9 DG417/418/419 Vishay Siliconix APPLICATIONS Micropower UPS Transfer Switch Programmable Gain Amplifier When VCC drops to 3.3 V, the DG417 changes states, closing SW1 and connecting the backup cell, as shown in Figure 10. D1 prevents current from leaking back towards the rest of the circuit. Current consumption by the CMOS analog switch is around 100 pA; this ensures that most of the power available is applied to the memory, where it is really needed. In the stand-by mode, hundreds of A are sufficient to retain memory data. The DG419, as shown in Figure 11, allows accurate gain selection in a small package. Switching into virtual ground reduces distortion caused by rDS(on) variation as a function of analog signal amplitude. When the 5 V supply comes back up, the resistor divider senses the presence of at least 3.5 V, and causes a new change of state in the analog switch, restoring normal operation. GaAs FET Driver The DG419, as shown in Figure 12 may be used as a GaAs FET driver. It translates a TTL control signal into - 8 V, 0 V level outputs to drive the gate. V+ D1 SW1 VL D VCC (5 V) R1 VSENSE 453 kΩ S + DG417 Memory 3 V Li Cell – IN GND R2 383 kΩ V- Figure 11. Micropower UPS Circuit +5V DG419 S1 S2 R1 VL R2 GaAs FET V+ S1 S2 IN D VOUT D DG419 5V VIN GND - V- VOUT + -8V Figure 12. Programmable Gain Amplifier Figure 13. GaAs FET Driver 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?70051. www.vishay.com 10 Document Number: 70051 S-71241–Rev. F, 25-Jun-07 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