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19-4725; Rev 4; 9/08
Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers
_______________General Description
Maxim's redesigned DG408 and DG409 CMOS analog multiplexers now feature guaranteed matching between channels (8 max) and flatness over the specified signal range (9 max). These low on-resistance muxes (100 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 +85C. 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, 8 Max Guaranteed On-Resistance Flatness, 9 Max Guaranteed Low Charge Injection, 15pC Max Low On-Resistance, 100 Max Input Leakage, 5nA Max at +85C Low Power Consumption, 1.25mW Max Rail-to-Rail Signal Handling Digital Input Controls TTL/CMOS Compatible ESD Protection >2000V per Method 3015.7
DG408/DG409
Applications
Sample-and-Hold Circuits Test Equipment Guidance and Control Systems Communications Systems Data-Acquisition Systems Audio Signal Routing
PART DG408CUE DG408CJ DG408CY DG408C/D DG408EUE DG408DJ DG408DY
Ordering Information
TEMP RANGE 0C to +70C 0C to +70C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C PIN-PACKAGE 16 TSSOP 16 Plastic DIP 16 Narrow SO Dice* 16 TSSOP 16 Plastic DIP 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.
Pin Configurations
V+
Functional Diagrams
VGND
TOP VIEW
S1 A0 1 EN 2 V- 3 S1 4
S2 5 S3 6 S4 7 D8
16 A1 15 A2 14 GND
S2 S3 S4 D S5 S6 S7 S8 DECODERS/DRIVERS
DG408
13 V+ 12 S5 11 S6 10 S7 9
S8
DIP/SO/TSSOP
DG409 appears at end of data sheet.
A0 A1 A2 EN DG408 1-of-8 MUX/DEMUX DG409 appears at end of data sheet.
________________________________________________________________ Maxim Integrated Products
1
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.
Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers DG408/DG409
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 = +70C) TSSOP (derate 9.4mW/C above +70C) ....................755mW Plastic DIP (derate 10.53mW/C above +70C) ..........842mW Narrow SO (derate 8.70mW/C above +70C) ............696mW CERDIP (derate 10.00mW/C above +70C) ...............800mW Operating Temperature Ranges DG408/DG409C_ ................................................0C to +70C DG408/DG409D,E_ .........................................-40C to +85C DG408/DG409AK ..........................................-55C to +125C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10sec) .............................+300C
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 SWITCH Analog Signal Range Drain-Source On-Resistance On-Resistance Matching Between Channels On-Resistance Flatness Source-Off Leakage Current (Note 5) VANALOG rDS(ON) rDS(ON) rFLAT (Note 3) IS = -1.0mA, VD = 10V IS = -1.0mA, VD = 10V (Note 4) IS = -1.0mA, VD = 5V or 0V VD = +10V, VS = 10V, VEN = 0V VD = 10V, VS = +10V, VEN = 0V ID(OFF) VD = +10V, VS = 10V, VEN = 0V DG409 TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C DG408 TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C Drain-On Leakage Current (Note 5) VD = 10V, VS = 10V, sequence each switch on DG408 TA = TMIN to TMAX TA = +25C DG409 TA = TMIN to TMAX C, D A C, D A C, D A C, D A C, D A -0.5 -5 -50 -1 -10 -100 -1 -5 -50 -1 -20 -100 -1 -10 -50 0.02 0.02 0.02 0.02 0.01 1.8 1.5 -15 60 15 100 125 8 10 9 12 0.5 5 50 1 10 100 1 5 50 1 20 100 1 10 50 nA nA nA V SYMBOL CONDITIONS MIN TYP MAX (Note 2) UNITS
IS(OFF)
Drain-Off Leakage Current (Note 5)
ID(ON)
2
_______________________________________________________________________________________
Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers
ELECTRICAL CHARACTERISTICS--Dual Supplies (continued)
(V+ = 15V, V- = -15V, GND = 0V, VAH = +2.4V, VAL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER INPUT Input Current with Input Voltage High Input Current with Input Voltage Low SUPPLY Power-Supply Range VEN = VA = 0V or 4.5V Positive Supply Current I+ VEN = 2.4V, VA(ALL) = 0V or 2.4V VEN = 2.4V, VA(ALL) = 0V or 2.4V TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX TA = +25C IAH IAL VA = 2.4V or 15V VEN = 0V or 2.4V, VA = 0V -1.0 -1.0 1.0 1.0 A A SYMBOL CONDITIONS MIN TYP MAX (Note 2) UNITS
DG408/DG409
5 16 0.075 -1 -10 85 10 40 85
Negative Supply Current DYNAMIC Transition Time Break-Before-Make Interval Enable Turn-On Time Enable Turn-Off Time Charge Injection (Note 3) Off Isolation (Note 6)
I-
20 30 75 0.5 2 1 10 175 250 150 225 150 300 15
V A mA A
tTRANS tOPEN tON(EN) tOFF(EN)
Figure 2 Figure 4 Figure 3 Figure 3 CL = 1.0nF, VS = 0V, RS = 0, Figure 5 VEN = 0V, RL = 1k, f = 100kHz, Figure 6 VEN = 2.4V, f = 100kHz, VGEN = 1VP-P, RL = 1k, Figure 7 f = 1MHz f = 1MHz, VEN = VS = 0V, Figure 8 f = 1MHz, VEN = 0.8V VD = 0V, Figure 8 f = 1MHz, VEN = 2.4V VD = 0V, Figure 8 DG408
ns ns ns ns
Q
2
pC
VISO
TA = +25C
-75
dB
Crosstalk Between Input Channels Logic Input Capacitance Source-Off Capacitance
VCT CIN CS(OFF)
TA = +25C TA = +25C TA = +25C
-92
dB
8 3 26
pF pF
Drain-Off Capacitance
CD(OFF)
TA = +25C DG409 DG408 TA = +25C DG409 25 14 37
pF
Drain-On Capacitance
CD(ON) + CS(ON)
pF
_______________________________________________________________________________________
3
Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers DG408/DG409
ELECTRICAL CHARACTERISTICS--Single Supply
(V+ = 12V, V- = 0V, GND = 0V, VAH = +2.4V, VAL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SWITCH Analog Signal Range Drain-Source On-Resistance DYNAMIC Transition Time (Note 3) tTRANS VS1 = 8V, VS8 = 0V, VA = 0V, Figure 2 VAL = 0V, VS1 = 5V, Figure 3 VAL = 0V, VS1 = 5V, Figure 3 CL = 1.0nF, VS = 0V, RS = 0 TA = +25C 115 450 ns VANALOG rDS(ON) (Note 3) IS = -1.0mA VD = 3V or 10V TA = +25C 0 120 12 175 V SYMBOL CONDITIONS MIN TYP MAX (Note 2) UNITS
Enable Turn-On Time (Note 3)
tON(EN)
TA = +25C
100
600
ns
Enable Turn-Off Time (Note 3)
tOFF(EN)
TA = +25C
75
300
ns
Charge Injection
Q
TA = +25C
2
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 +25C. 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
__________________________________________Typical Operating Characteristics
(TA = +25C, unless otherwise noted.)
DG408/DG409
ON-RESISTANCE vs. VD (DUAL SUPPLIES)
DG408/9 TOC-01
ON-RESISTANCE vs. VD AND TEMPERATURE (DUAL SUPPLIES)
DG408/9 TOC-02
ON-RESISTANCE vs. VD (SINGLE SUPPLY)
360 320
DG408/9 TOC-03
160 140 120 rDS(ON) () 100 80 60 40 20 0 -20 -15 -10 -5 0 VD (V) 5 10 15 15V 20V 5V 10V
120 100 80 rDS(ON) () 60 40 20 0
400
V+ = 15V V- = -15V
+125C +85C +25C -55C rDS(ON) ()
280 5V 240 200 160 120 80 40 10V 15V 20V 0 5 10 VD (V) 15 20
20
-15
-10
-5
0 VD (V)
5
10
15
ON-RESISTANCE vs. VD AND TEMPERATURE (SINGLE SUPPLY)
DG408/9 TOC-04
OFF LEAKAGE vs. TEMPERATURE
DG408/9 TOC-05
ON LEAKAGE vs. TEMPERATURE
V+ = 15V V- = -15V
DG408/9 TOC-05
160 140 120 rDS(ON) () 100 80 60 40 20 0 0
V+ = 15V V- = 0V +125C
1000 100 OFF LEAKAGE (nA) 10 1 0.1 0.01 0.001 0.0001 ICOM (ON) V+ = 15V V- = -15V
1000 100 ON LEAKAGE (nA) 10 1 0.1 0.01 ICOM (ON) 0.001 0.0001
+85C +25C -55C
INO (OFF)
5 VD (V)
10
15
-55 -35 -15
5
25 45
65
85 105 125
-55 -35 -15
5
25 45
65
85 105 125
TEMPERATURE (C)
TEMPERATURE (C)
CHARGE INJECTION vs. VD
DG408/9 TOC-07
SUPPLY CURRENT vs. TEMPERATURE
I+ 10
DG408/9 TOC-08
30 20 10 Qj (pC) 0 -10 -20 -30 -15 -10 -5 0 VD (V) 5 10 15 V+ = 12V V- = 0V V+ = 15V V- = -15V
100
I+, I- (A)
1
0.1 I0.01 V+ = 15V V- = -15V VEN = VA = 0V, 4.5V -55 -35 -15 5 25 45 65 85 105 125
0.001 TEMPERATURE (C)
_______________________________________________________________________________________
5
Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers DG408/DG409
______________________________________________________________Pin Description
PIN DG408 1, 15, 16 -- 2 3 4-7 -- 8 -- 9-12 -- 13 14 DG409 -- 1, 16 2 3 -- 4-7 -- 8, 9 -- 10-13 14 15 NAME A0, A2, A1 A0, A1 EN VS1-S4 S1A-S4A D DA, DB S8-S5 S4B-S1B V+ GND Address Inputs Address Inputs Enable Input Negative Supply Voltage Input Bidirectional Analog Inputs Bidirectional Analog Inputs Bidirectional Analog Output Bidirectional Analog Outputs Bidirectional Analog Inputs Bidirectional Analog Inputs Positive Supply Voltage Input Ground FUNCTION
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.)
V+
DG408 DG409
S
D
Vg
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-
Figure 1. Overvoltage Protection Using External Blocking Diodes
_______________________________________________________________________________________
Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers
Test Circuits/Timing Diagrams
+15V V+ A2 A1 A0 S1 S2-S7
DG408/DG409
10V
DG408
EN GND 50 +15V V+ A1 A0 -15V V-
S8 D
+10V VOUT 35pF 300 LOGIC INPUT +3V 50% 0V VS1 SWITCH OUTPUT VOUT
tR < 20ns tF < 20ns
90%
S1B S1A-S4A
10V
0V 90%
VS8 or VS4B +10V VOUT 300 35pF tTRANS (ON) tTRANS (OFF)
DG409
EN GND 50 -15V V-
S4B DB
Figure 2. Transition Time
+15V V+ S1 S2-S8 A0 A1 A2 D 50 GND V1k -15V +15V EN V+ S1B S1A-S4A S2B-S4B, DA -5V SWITCH OUTPUT 90% VOUT VOUT 35pF LOGIC INPUT +3V 50% 0V tON(EN) 0V 10% -5V
EN
DG408
tR < 20ns tF < 20ns tOFF(EN)
A0 A1 50 GND
DG409
DB V1k -15V VOUT 35pF
Figure 3. Enable Switching Time
_______________________________________________________________________________________ 7
Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers DG408/DG409
Test Circuits/Timing Diagrams (continued)
+15V V+ S1-S8 A0 A1 A2 GND 50 -15V V300 LOGIC INPUT +3V 50% 0V VOUT 80% D VOUT 35pF 0V SWITCH OUTPUT tOPEN
+2.4V
EN
tR < 20ns tF < 20ns
+5V
DG408
Figure 4. Break-Before-Make Interval
+15V RS S_ EN VS CHANNEL SELECT A0 A1 A2 D V+ LOGIC INPUT VOUT VOUT VOUT VOUT IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF. -15V Q = CL = VOUT +3V OFF 0V ON OFF
DG408
CL = 1000nF GND V-
Figure 5. Charge Injection
8
_______________________________________________________________________________________
Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers
Test Circuits/Timing Diagrams (continued)
+15V 10nF +15V 10nF
DG408/DG409
VIN S1 RS = 50 S8 A0 A1 A2 GND EN VD VOUT RL = 1k RS = 50 V+
VIN
S1 S2 S8 A0 A1 A2 GND
V+ EN +2.4V
DG408
D VOUT RL = 1k V-
DG408
10nF
-15V VOUT VIN
10nF
-15V
OFF ISOLATION = 20log
CROSSTALK = 20log
VOUT VIN
Figure 6. Off Isolation
Figure 7. Crosstalk
+15V V+ A2 CHANNEL SELECT A1 A0 D GND EN Vf = 1MHz S1 Meter Impedance Analyzer or Equivalent
DG408
S8
-15V
Figure 8. Source/Drain Capacitance
_______________________________________________________________________________________
9
Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers DG408/DG409
Pin Configurations/Functional Diagrams/Truth Tables (continued)
TOP VIEW
S1A V+ VGND
A0 1 EN 2 V- 3 S1A 4 S2A 5 S3A 6 S4A 7 DA 8
16 A1 15 GND 14 V+
S2A S3A S4A S1B S2B DA
DG409
13 S1B 12 S2B 11 S3B 10 S4B 9 DB
DB S3B S4B CMOS DECODE LOGIC
DIP/SO/TSSOP
A1
A0
EN
DG409 4-CHANNEL DIFFERENTIAL MUX/DEMUX
A2 X 0 0 0 0 1 1 1 1
A1 X 0 0 1 1 0 0 1 1
A0 X 0 1 0 1 0 1 0 1
EN 0 1 1 1 1 1 1 1 1
ON SWITCH None 1 2 3 4 5 6 7 8 A1 X 0 0 1 1 A0 X 0 1 0 1 EN 0 1 1 1 1 DG409
ON SWITCH None 1 2 3 4
DG408 LOGIC "0" VAL 0.8V, LOGIC "1" VAH 2.4V LOGIC "0" VAL 0.8V, LOGIC "1" VAH 2.4V
10
______________________________________________________________________________________
Improved, 8-Channel/Dual 4-Channel, CMOS Analog Multiplexers
Ordering Information (continued)
PART DG408DK DG408AK DG408MY/PR DG408MY/PR-T DG409CUE DG409CJ DG409CY DG409C/D DG409EUE DG409DJ DG409DK DG409AK DG409MY/PR DG409MY/PR-T TEMP RANGE -40C to +85C -55C to +125C -55C to +125C -55C to +125C 0C to +70C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C -55C to +125C -55C to +125C -55C to +125C PIN-PACKAGE 16 CERDIP 16 CERDIP** 16 SO*** 16 SO*** 16 TSSOP 16 Plastic DIP 16 Narrow SO Dice* 16 TSSOP 16 Plastic DIP 16 CERDIP 12 CERDIP** 16 SO*** 16 SO***
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. PACKAGE TYPE 16 TSSOP 16 Plastic DIP 16 Narrow SO 16 SO 16 CERDIP PACKAGE CODE U16-1 P16-2 S16-5 S16-5 J16-3 DOCUMENT NO. 21-0066 21-0043 21-0041 21-0041 21-0590
DG408/DG409
*Contact factory for dice specifications. **Contact factory for availability and processing to MIL-STD-883.
______________________________________________________________________________________
11
Improved, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers DG408/DG409
Revision History
REVISION NUMBER 3 4 REVISION DATE 8/02 9/08 DESCRIPTION Changed operating voltage and TSSOP packaging Added rugged plastic information 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 (c) 2008 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.

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