19-4725; Rev 2; 6/99 Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers ________________________Applications Sample-and-Hold Circuits ____________________________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 PART TEMP. RANGE Test Equipment DG408CJ 0°C to +70°C 16 Plastic DIP Guidance and Control Systems DG408CY DG408C/D DG408DJ DG408DY DG408DK DG408AK 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -55°C to +125°C 16 Narrow SO Dice* 16 Plastic DIP 16 Narrow SO 16 CERDIP 16 CERDIP** Communications Systems Data-Acquisition Systems Audio Signal Routing PIN-PACKAGE Ordering Information continued at end of data sheet. * Contact factory for dice specifications. ** Contact factory for availability. _________________Pin Configurations _______________Functional Diagrams V+ V- GND TOP VIEW S1 A0 1 16 A1 EN 2 15 A2 V- 3 14 GND DG408 S1 4 13 V+ S2 5 12 S5 S3 6 11 S6 S4 7 10 S7 D 8 9 DIP/SO DG409 appears at end of data sheet. S2 S3 S4 D S5 S6 S7 S8 DECODERS/DRIVERS S8 A0 A1 A2 EN DG408 1-of-8 MUX/DEMUX DG409 appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products 1 For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. DG408/DG409 _______________General Description 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 +4.5V to +30V single supply and with ±4.5V 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. 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) 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_.............................................-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 ∆rDS(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 60 TA = TMIN to TMAX 1.5 TA = TMIN to TMAX TA = TMIN to TMAX TA = TMIN to TMAX TA = TMIN to TMAX -0.5 2 ID(ON) VD = ±10V, VS = ±10V, sequence each switch on DG408 TA = TMIN to TMAX 5 -50 50 C, D -10 10 A -100 100 -1 -1 TA = TMIN to TMAX 0.02 0.02 1 -5 5 A -50 50 0.02 -20 20 A -100 100 0.02 1 C, D -10 10 A -50 50 _______________________________________________________________________________________ Ω Ω nA nA 1 C, D -1 Ω 1 C, D -1 V 0.5 A TA = +25°C DG409 0.01 -5 TA = +25°C Drain-On Leakage Current (Note 5) 9 12 C, D TA = +25°C DG409 8 10 1.8 TA = +25°C DG408 100 125 TA = TMIN to TMAX ID(OFF) VD = +10V, VS = ±10V, VEN = 0V 15 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 ±4.5 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 f = 1MHz, VEN = VS = 0V, Figure 8 TA = +25°C 3 pF Charge Injection (Note 3) Q Off Isolation (Note 6) Source-Off Capacitance CS(OFF) Drain-Off Capacitance CD(OFF) Drain-On Capacitance 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: ∆RON = 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 (DUAL SUPPLIES) ON-RESISTANCE vs. VD (SINGLE SUPPLY) ON-RESISTANCE vs. VD AND TEMPERATURE (DUAL SUPPLIES) ±5V V+ = 15V V- = -15V 100 360 320 80 ±15V +85°C 60 +25°C -55°C 40 ±20V 280 rDS(ON) (Ω) ±10V 60 +125°C 80 rDS(ON) (Ω) 200 160 40 10V 120 20 20 0 -20 -5 0 5 10 15 20 -15 -10 -5 5 10 0 15 5 10 1000 DG408/9 TOC-05 DG408/9 TOC-04 20 ON LEAKAGE vs. TEMPERATURE 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 0 -15 -10 15V 80 VD (V) 100 V+ = 15V V- = -15V +85°C 100 +25°C 80 -55°C 60 10 1 ICOM (ON) 0.1 0.01 40 ON LEAKAGE (nA) OFF LEAKAGE (nA) +125°C 120 10 -55 -35 -15 15 0.1 ICOM (ON) 5 25 45 65 0.0001 85 105 125 -55 -35 -15 TEMPERATURE (°C) VD (V) CHARGE INJECTION vs. VD 30 20 I+ 10 I+, I- (µA) 0 V+ = 12V V- = 0V -10 65 85 105 125 SUPPLY CURRENT vs. TEMPERATURE 100 V+ = 15V V- = -15V 10 25 45 5 TEMPERATURE (°C) DG408/9 TOC-08 5 DG408/9 TOC-07 0 1 0.001 0.0001 0 10 0.01 INO (OFF) 0.001 20 Qj (pC) rDS(ON) (Ω) 5V 240 DG408/9 TOC-05 rDS(ON) (Ω) 120 100 DG408/9 TOC-03 140 400 DG408/9 TOC-02 120 DG408/9 TOC-01 160 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 ±4.5V to ±20V bipolar supplies or with a +4.5V 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+ S1 A2 A1 ±10V S2-S7 A0 DG408 S8 EN +10V D GND VOUT V- LOGIC INPUT 50% 35pF 50Ω 0V 300Ω +15V -15V VS1 SWITCH OUTPUT VOUT V+ S1B A1 ±10V 90% 0V A0 90% S1A-S4A VS8 or VS4B S4B DG409 EN +10V VOUT V- 50Ω tTRANS (OFF) tTRANS (ON) DB GND tR < 20ns tF < 20ns +3V 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 V+ S1B 10% SWITCH OUTPUT -5V S1A-S4A S2B-S4B, DA 90% VOUT DG409 A1 50Ω tOFF(EN) 0V +15V 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 DG408/DG409 Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers _________________________________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 V+ S_ LOGIC INPUT EN VS CHANNEL SELECT +3V OFF ON OFF 0V A0 D A1 VOUT DG408 A2 CL = 1000nF GND V- ∆VOUT VOUT ∆VOUT IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF. -15V Q = CL = ∆VOUT Figure 5. Charge Injection 8 _______________________________________________________________________________________ Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers +15V +15V VIN VIN S1 RS = 50Ω V+ V+ S1 S2 S8 S8 A0 D A1 10nF 10nF DG408 VOUT RS = 50Ω +2.4V D VOUT DG408 A0 A1 RL = 1kΩ A2 EN RL = 1kΩ A2 EN GND 10nF V- 10nF -15V OFF ISOLATION = 20log V- GND VOUT CROSSTALK = 20log VIN Figure 6. Off Isolation -15V 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 S2A A0 1 16 A1 EN 2 15 GND V- 3 14 V+ DG409 S1A 4 S4A 13 S1B S1B S2A 5 12 S2B S2B S3A 6 11 S3B S3B S4A 7 10 S4B DA 8 9 DA S3A DB S4B DB CMOS DECODE LOGIC DIP/SO A1 EN A0 DG409 4-CHANNEL DIFFERENTIAL MUX/DEMUX A2 A1 A0 EN ON SWITCH X X X 0 None 0 0 0 0 0 1 1 1 1 2 0 0 1 1 1 1 1 1 0 0 1 1 0 1 0 1 0 1 1 1 1 1 1 1 3 4 5 6 7 8 A1 A0 EN ON SWITCH X X 0 None 0 0 1 1 0 1 1 2 1 0 1 3 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 TEMP. RANGE PIN-PACKAGE DG409CJ PART 0°C to +70°C 16 Plastic DIP DG409CY DG409C/D DG409DJ DG409DY DG409DK DG409AK 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -55°C to +125°C 16 Narrow SO Dice* 16 Plastic DIP 16 Narrow SO 16 CERDIP 16 CERDIP** DG408/DG409 _Ordering Information (continued) * Contact factory for dice specifications. ** Contact factory for availability. ______________________________________________________________________________________ 11 DG408/DG409 Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers __________________________________________________________Chip Topographies DG408 EN A0 A1 A2 DG409 GND EN A0 A1 N.C. GND N.C. N.C. V- V+ V- S1 S5 S1A S1B S2 S6 S2A S2B S3A S3B 0.136 (3.45mm) N.C. S3 S4 D S8 S7 V+ S4A 0.080" (2.03mm) DA DB 0.136 (3.45mm) S4B 0.080" (2.03mm) N.C. = NO INTERNAL CONNECTION TRANSISTOR COUNT: 122 TRANSISTOR COUNT: 122 SUBSTRATE CONNECTED TO V+ SUBSTRATE CONNECTED TO V+ 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 © 1999 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.