19-4725; Rev 4; 9/08 Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers Maxim’s redesigned DG408 and DG409 CMOS analog multiplexers now feature guaranteed matching between channels (8Ω max) and flatness over the specified signal range (9Ω max). These low on-resistance muxes (100Ω max) conduct equally well in either direction and feature guaranteed low charge injection (15pC max). In addition, these new muxes offer low input off-leakage current over temperature—less than 5nA at +85°C. The DG408 is a 1-of-8 multiplexer/demultiplexer and the DG409 is a dual 4-channel multiplexer/demultiplexer. Both muxes operate with a +5V to +30V single supply and with ±5V to ±20V dual supplies. ESD protection is guaranteed to be greater than 2000V per Method 3015.7 of MIL-STD-883. These improved muxes are pin-compatible plug-in upgrades for the industry standard DG408 and DG409. ____________________________Features ♦ Pin-Compatible Plug-In Upgrades for Industry Standard DG408/DG409 ♦ Guaranteed Matching Between Channels, 8Ω Max ♦ Guaranteed On-Resistance Flatness, 9Ω Max ♦ Guaranteed Low Charge Injection, 15pC Max ♦ Low On-Resistance, 100Ω Max ♦ Input Leakage, 5nA Max at +85°C ♦ Low Power Consumption, 1.25mW Max ♦ Rail-to-Rail Signal Handling ♦ Digital Input Controls TTL/CMOS Compatible ♦ ESD Protection >2000V per Method 3015.7 Ordering Information Applications Sample-and-Hold Circuits PART TEMP RANGE PIN-PACKAGE Test Equipment DG408CUE Guidance and Control Systems DG408CJ 0°C to +70°C 16 Plastic DIP Communications Systems DG408CY 0°C to +70°C 16 Narrow SO Data-Acquisition Systems DG408C/D 0°C to +70°C Dice* Audio Signal Routing DG408EUE 0°C to +70°C 16 TSSOP 0°C to +70°C 16 TSSOP DG408DJ -40°C to +85°C 16 Plastic DIP DG408DY -40°C to +85°C 16 Narrow SO Ordering Information continued at end of data sheet. *Contact factory for dice specifications. **Contact factory for availability and processing to MIL-STD-883. Functional Diagrams Pin Configurations V+ V- GND TOP VIEW S1 A0 1 16 A1 EN 2 15 A2 V- 3 14 GND DG408 S1 4 13 V+ S2 S3 S4 D S5 S6 S2 5 12 S5 S7 S3 6 11 S6 S8 S4 7 10 S7 D 8 9 DIP/SO/TSSOP DG409 appears at end of data sheet. DECODERS/DRIVERS S8 A0 A1 A2 EN DG408 1-of-8 MUX/DEMUX DG409 appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 DG408/DG409 _______________General Description DG408/DG409 Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers ABSOLUTE MAXIMUM RATINGS Voltage Referenced to VV+ ............................................................................-0.3V, 44V GND .........................................................................-0.3V, 25V Digital Inputs, S, D (Note 1)....................(V- - 2V) to (V+ + 2V) or 30mA, (whichever occurs first) Continuous Current (any terminal) ......................................30mA Peak Current, S, D (pulsed at 1ms, 10% duty cycle max) ..........................100mA Continuous Power Dissipation (TA = +70°C) TSSOP (derate 9.4mW/°C above +70°C) ....................755mW Plastic DIP (derate 10.53mW/°C above +70°C) ..........842mW Narrow SO (derate 8.70mW/°C above +70°C) ............696mW CERDIP (derate 10.00mW/°C above +70°C) ...............800mW Operating Temperature Ranges DG408/DG409C_ ................................................0°C to +70°C DG408/DG409D,E_ .........................................-40°C to +85°C DG408/DG409AK ..........................................-55°C to +125°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10sec) .............................+300°C Note 1: Signals on S_, D_, EN, A0, A1, or A2 exceeding V+ or V- are clamped by internal diodes. Limit forward current to maximum current ratings. 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. ELECTRICAL CHARACTERISTICS—Dual Supplies (V+ = 15V, V- = -15V, GND = 0V, VAH = +2.4V, VAL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL MIN CONDITIONS TYP MAX (Note 2) UNITS SWITCH Analog Signal Range Drain-Source On-Resistance VANALOG rDS(ON) On-Resistance Matching Between Channels ΔrDS(ON) On-Resistance Flatness rFLAT Source-Off Leakage Current (Note 5) Drain-Off Leakage Current (Note 5) IS(OFF) (Note 3) -15 IS = -1.0mA, VD = ±10V TA = +25°C IS = -1.0mA, VD = ±10V (Note 4) TA = +25°C IS = -1.0mA, VD = ±5V or 0V TA = +25°C VD = +10V, VS = ±10V, VEN = 0V TA = +25°C VD = ±10V, VS = +10V, VEN = 0V TA = +25°C 60 TA = TMIN to TMAX 1.5 TA = TMIN to TMAX TA = TMIN to TMAX DG408 TA = TMIN to TMAX DG409 TA = TMIN to TMAX Drain-On Leakage Current (Note 5) 2 ID(ON) VD = ±10V, VS = ±10V, sequence each switch on DG408 TA = TMIN to TMAX -0.5 -5 A -50 -1 C, D -10 A -100 -1 C, D -5 A -50 -1 C, D -20 A -100 TA = +25°C DG409 TA = TMIN to TMAX 9 12 C, D TA = +25°C 8 10 1.8 TA = +25°C 100 125 TA = TMIN to TMAX ID(OFF) VD = +10V, VS = ±10V, VEN = 0V 15 -1 0.01 V Ω Ω Ω 0.5 5 nA 50 0.02 1 10 100 0.02 1 nA 5 50 0.02 1 20 100 0.02 1 C, D -10 10 A -50 50 _______________________________________________________________________________________ nA Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers (V+ = 15V, V- = -15V, GND = 0V, VAH = +2.4V, VAL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX (Note 2) UNITS INPUT Input Current with Input Voltage High IAH VA = 2.4V or 15V -1.0 1.0 µA Input Current with Input Voltage Low IAL VEN = 0V or 2.4V, VA = 0V -1.0 1.0 µA ±20 30 75 0.5 2 1 10 V SUPPLY Power-Supply Range ±5 VEN = VA = 0V or 4.5V Positive Supply Current Negative Supply Current I+ I- VEN = 2.4V, VA(ALL) = 0V or 2.4V VEN = 2.4V, VA(ALL) = 0V or 2.4V TA = +25°C TA = TMIN to TMAX TA = +25°C TA = TMIN to TMAX TA = +25°C TA = TMIN to TMAX 16 0.075 -1 -10 µA mA µA DYNAMIC Transition Time tTRANS Figure 2 Break-Before-Make Interval tOPEN Figure 4 Enable Turn-On Time tON(EN) Figure 3 Enable Turn-Off Time tOFF(EN) Figure 3 TA = +25°C TA = TMIN to TMAX TA = +25°C TA = +25°C TA = TMIN to TMAX TA = +25°C TA = TMIN to TMAX 85 10 40 85 175 250 ns ns 150 225 150 300 ns ns CL = 1.0nF, VS = 0V, RS = 0Ω, Figure 5 TA = +25°C 2 VISO VEN = 0V, RL = 1kΩ, f = 100kHz, Figure 6 TA = +25°C -75 dB Crosstalk Between Input Channels VCT VEN = 2.4V, f = 100kHz, VGEN = 1VP-P, RL = 1kΩ, Figure 7 TA = +25°C -92 dB Logic Input Capacitance CIN f = 1MHz TA = +25°C 8 pF Source-Off Capacitance CS(OFF) f = 1MHz, VEN = VS = 0V, Figure 8 TA = +25°C 3 pF Charge Injection (Note 3) Q Off Isolation (Note 6) Drain-Off Capacitance Drain-On Capacitance CD(OFF) CD(ON) + CS(ON) f = 1MHz, VEN = 0.8V VD = 0V, Figure 8 f = 1MHz, VEN = 2.4V VD = 0V, Figure 8 DG408 pC 26 TA = +25°C DG409 pF 14 DG408 37 TA = +25°C DG409 15 pF 25 _______________________________________________________________________________________ 3 DG408/DG409 ELECTRICAL CHARACTERISTICS—Dual Supplies (continued) DG408/DG409 Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers ELECTRICAL CHARACTERISTICS—Single Supply (V+ = 12V, V- = 0V, GND = 0V, VAH = +2.4V, VAL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX (Note 2) UNITS SWITCH Analog Signal Range VANALOG (Note 3) 0 12 V rDS(ON) IS = -1.0mA VD = 3V or 10V TA = +25°C 120 175 Ω Transition Time (Note 3) tTRANS VS1 = 8V, VS8 = 0V, VA = 0V, Figure 2 TA = +25°C 115 450 ns Enable Turn-On Time (Note 3) tON(EN) VAL = 0V, VS1 = 5V, Figure 3 TA = +25°C 100 600 ns Enable Turn-Off Time (Note 3) tOFF(EN) VAL = 0V, VS1 = 5V, Figure 3 TA = +25°C 75 300 ns CL = 1.0nF, VS = 0V, RS = 0Ω TA = +25°C 2 Drain-Source On-Resistance DYNAMIC Charge Injection Q pC Note 2: The algebraic convention where the most negative value is a minimum and the most positive value a maximum is used in this data sheet. Note 3: Guaranteed by design. Note 4: ΔRON = RON(MAX) - RON(MIN). On-resistance match between channels and flatness are guaranteed only with specified voltages. Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured at the extremes of the specified analog signal range. Note 5: Leakage parameters are 100% tested at the maximum rated hot temperature and guaranteed by correlation at +25°C. Note 6: Off isolation = 20log VD/VS, where VD = output and VS = input to off switch. 4 _______________________________________________________________________________________ Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers ON-RESISTANCE vs. VD AND TEMPERATURE (DUAL SUPPLIES) ±5V +85°C 60 +25°C -55°C 40 ±20V 280 rDS(ON) (Ω) ±15V 40 5V 240 200 160 10V 120 20 20 0 -10 -5 0 5 10 15 20 -15 -10 -5 VD (V) 5 10 0 15 5 10 20 ON LEAKAGE vs. TEMPERATURE 1000 DG408/9 TOC-05 DG408/9 TOC-04 1000 V+ = 15V V- = -15V 100 15 VD (V) OFF LEAKAGE vs. TEMPERATURE V+ = 15V V- = 0V 140 0 VD (V) ON-RESISTANCE vs. VD AND TEMPERATURE (SINGLE SUPPLY) 160 20V 40 100 DG408/9 TOC-05 -15 15V 80 0 -20 V+ = 15V V- = -15V +125°C +25°C 80 -55°C 60 10 OFF LEAKAGE (nA) +85°C 100 ON LEAKAGE (nA) 120 1 ICOM (ON) 0.1 0.01 40 0 5 10 15 1 0.1 ICOM (ON) 0.001 0.0001 0.0001 -55 -35 -15 5 25 45 85 105 125 65 -55 -35 -15 TEMPERATURE (°C) VD (V) CHARGE INJECTION vs. VD 100 85 105 125 I+ 10 I+, I- (μA) V+ = 15V V- = -15V 0 V+ = 12V V- = 0V -10 65 DG408/9 TOC-08 20 10 25 45 5 TEMPERATURE (°C) SUPPLY CURRENT vs. TEMPERATURE 30 DG408/9 TOC-07 0 10 0.01 INO (OFF) 0.001 20 Qj (pC) rDS(ON) (Ω) 360 +125°C 80 80 60 400 320 rDS(ON) (Ω) rDS(ON) (Ω) 100 ±10V 100 V+ = 15V V- = -15V DG408/9 TOC-03 140 120 120 DG408/9 TOC-01 160 ON-RESISTANCE vs. VD (SINGLE SUPPLY) DG408/9 TOC-02 ON-RESISTANCE vs. VD (DUAL SUPPLIES) 1 0.1 I0.01 -20 -30 V+ = 15V V- = -15V VEN = VA = 0V, 4.5V 0.001 -15 -10 -5 0 VD (V) 5 10 15 -55 -35 -15 5 25 45 65 85 105 125 TEMPERATURE (°C) _______________________________________________________________________________________ 5 DG408/DG409 __________________________________________Typical Operating Characteristics (TA = +25°C, unless otherwise noted.) DG408/DG409 Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers ______________________________________________________________Pin Description PIN NAME FUNCTION DG408 DG409 1, 15, 16 — A0, A2, A1 Address Inputs — 1, 16 A0, A1 Address Inputs 2 2 EN Enable Input 3 3 V- Negative Supply Voltage Input 4–7 — S1–S4 Bidirectional Analog Inputs — 4–7 S1A–S4A Bidirectional Analog Inputs 8 — D Bidirectional Analog Output — 8, 9 DA, DB Bidirectional Analog Outputs 9–12 — S8–S5 Bidirectional Analog Inputs — 10–13 S4B–S1B Bidirectional Analog Inputs 13 14 V+ 14 15 GND Positive Supply Voltage Input Ground Applications Information Operation with Supply Voltages Other than 15V Using supply voltages less than ±15V reduces the analog signal range. The DG408/DG409 switches operate with ±5V to ±20V bipolar supplies or with a +5V to +40V single supply. Connect V- to GND when operating with a single supply. Both device types can also operate with unbalanced supplies, such as +24V and -5V. The Typical Operating Characteristics graphs show typical on-resistance with 20V, 15V, 10V, and 5V supplies. (Switching times increase by a factor of two or more for operation at 5V.) Overvoltage Protection Proper power-supply sequencing is recommended for all CMOS devices. Do not exceed the absolute maximum ratings, because stresses beyond the listed ratings may cause permanent damage to the devices. Always sequence V+ on first, then V-, followed by the logic inputs, S or D. If power-supply sequencing is not possible, add two small signal diodes in series with supply pins for overvoltage protection (Figure 1). Adding diodes reduces the analog signal range to 1V below V+ and 1V above V-, but does not affect the devices’ low switch resistance and low leakage characteristics. Device operation is unchanged, and the difference between V+ and V- should not exceed +44V. 6 V+ DG408 DG409 S D Vg V- Figure 1. Overvoltage Protection Using External Blocking Diodes _______________________________________________________________________________________ Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers +15V V+ ±10V S1 A2 A1 S2-S7 A0 DG408 S8 EN +10V D GND VOUT V- LOGIC INPUT 50% 35pF 50Ω 0V 300Ω -15V +15V VS1 V+ SWITCH OUTPUT VOUT ±10V S1B A1 90% 0V A0 90% S1A-S4A VS8 or VS4B S4B DG409 EN +10V tTRANS (ON) DB GND tR < 20ns tF < 20ns +3V V- 50Ω tTRANS (OFF) VOUT 35pF 300Ω -15V Figure 2. Transition Time +15V V+ EN S1 -5V S2-S8 A0 DG408 A1 A2 D GND 50Ω VOUT V- 35pF 1k LOGIC INPUT -15V S1B 10% SWITCH OUTPUT -5V S1A-S4A S2B-S4B, DA 90% VOUT DG409 A1 50Ω tOFF(EN) 0V V+ A0 50% 0V tON(EN) +15V EN tR < 20ns tF < 20ns +3V DB GND VOUT V1k 35pF -15V Figure 3. Enable Switching Time _______________________________________________________________________________________ 7 DG408/DG409 Test Circuits/Timing Diagrams Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers DG408/DG409 Test Circuits/Timing Diagrams (continued) +15V +2.4V V+ EN S1-S8 LOGIC INPUT +5V tR < 20ns tF < 20ns +3V 50% 0V A0 A1 VOUT DG408 80% A2 D GND SWITCH OUTPUT VOUT V- 35pF tOPEN 0V 300Ω 50Ω -15V Figure 4. Break-Before-Make Interval +15V RS S_ V+ LOGIC INPUT EN VS CHANNEL SELECT +3V OFF ON OFF 0V A0 D A1 VOUT DG408 A2 CL = 1000nF GND V- ΔVOUT VOUT ΔVOUT IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF. -15V Q = CL = ΔVOUT Figure 5. Charge Injection 8 _______________________________________________________________________________________ Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers +15V 10nF +15V VIN S1 VIN V+ V+ S1 S2 RS = 50Ω 10nF EN +2.4V D VOUT S8 A0 D A1 DG408 RL = 1kΩ A2 EN GND S8 VOUT RS = 50Ω DG408 A0 A1 RL = 1kΩ A2 V- V- GND 10nF -15V OFF ISOLATION = 20log 10nF -15V VOUT VIN CROSSTALK = 20log Figure 6. Off Isolation VOUT VIN Figure 7. Crosstalk +15V V+ S1 A2 CHANNEL SELECT DG408 A1 S8 A0 Meter Impedance Analyzer or Equivalent D GND EN V- f = 1MHz -15V Figure 8. Source/Drain Capacitance _______________________________________________________________________________________ 9 DG408/DG409 Test Circuits/Timing Diagrams (continued) DG408/DG409 Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers Pin Configurations/Functional Diagrams/Truth Tables (continued) TOP VIEW V+ V- GND S1A A0 1 16 A1 S2A EN 2 15 GND S3A V- 3 14 V+ S4A S1A 4 DG409 13 S1B S2A 5 12 S2B S3A 6 11 S3B S4A 7 10 S4B DA S1B S2B DA 8 9 DB DB S3B S4B CMOS DECODE LOGIC DIP/SO/TSSOP A1 EN A0 DG409 4-CHANNEL DIFFERENTIAL MUX/DEMUX A2 A1 A0 EN ON SWITCH X 0 0 0 X 0 0 1 X 0 1 0 0 1 1 1 None 1 2 3 0 1 1 1 0 0 1 0 1 1 1 1 1 1 1 1 0 1 1 1 A1 A0 EN ON SWITCH X X 0 None 0 0 1 1 4 5 6 0 1 1 2 1 0 1 3 7 8 1 1 1 4 DG409 DG408 LOGIC “0” VAL ≤ 0.8V, LOGIC “1” VAH ≥ 2.4V 10 LOGIC “0” VAL ≤ 0.8V, LOGIC “1” VAH ≥ 2.4V ______________________________________________________________________________________ Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers PART TEMP RANGE PIN-PACKAGE DG408DK -40°C to +85°C 16 CERDIP DG408AK -55°C to +125°C 16 CERDIP** Package Information For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. PACKAGE TYPE PACKAGE CODE DOCUMENT NO. 16 TSSOP U16-1 21-0066 DG408MY/PR -55°C to +125°C 16 SO*** DG408MY/PR-T -55°C to +125°C 16 SO*** 16 Plastic DIP P16-2 21-0043 16 Narrow SO S16-5 21-0041 DG409CUE 0°C to +70°C 16 TSSOP DG409CJ 0°C to +70°C 16 Plastic DIP 16 SO S16-5 21-0041 16 Narrow SO 16 CERDIP J16-3 21-0590 DG409CY 0°C to +70°C DG409C/D 0°C to +70°C DG409EUE -40°C to +85°C Dice* 16 TSSOP DG409DJ -40°C to +85°C 16 Plastic DIP DG409DK -40°C to +85°C 16 CERDIP DG409AK -55°C to +125°C 12 CERDIP** DG409MY/PR -55°C to +125°C 16 SO*** DG409MY/PR-T -55°C to +125°C 16 SO*** *Contact factory for dice specifications. **Contact factory for availability and processing to MIL-STD-883. ______________________________________________________________________________________ 11 DG408/DG409 Ordering Information (continued) DG408/DG409 Improved, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers Revision History REVISION NUMBER REVISION DATE 3 8/02 Changed operating voltage and TSSOP packaging 4 9/08 Added rugged plastic information DESCRIPTION PAGES CHANGED ⎯ 1, 11 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2008 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.