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DG408/409
Vishay Siliconix
8-Ch/Dual 4-Ch High-Performance CMOS Analog Multiplexers
DESCRIPTION
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).
FEATURES
* * * * * * * Low On-Resistance - rDS(on): 100 Low Charge Injection - Q: 20 pC Fast Transition Time - tTRANS: 160 ns Low Power - ISUPPLY: 10 A 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
DG408 Dual-In-Line SOIC and TSSOP
A0 EN VS1 S2 S3 S4 D A1 A2 GND V+ S5 S6 S7 S8
DG409
Dual-In-Line SOIC and TSSOP
A0 EN VS1a S2a S3a S4a Da A1 GND V+ S1b S2b S3b S4b Db
1 2 3 4 5 6 7 8 Top View Decoders/Drivers
16 15 14 13 12 11 10 9
1 2 3 4 5 6 7 8 Top View Decoders/Drivers
16 15 14 13 12 11 10 9
* 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
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
TRUTH TABLE - DG409
A1 X 0 0 1 1 Logic "0" = VAL 0.8 V Logic "1" = VAH 2.4 V X = Don't Care A0 X 0 1 0 1 EN 0 1 1 1 1 On Switch None 1 2 3 4
ORDERING INFORMATION - DG408
Temp Range Package 16-Pin Plastic DIP Part Number DG408DJ DG408DJ-E3 DG408DY DG408DY-E3 DG408DY-T1 DG408DY-T1-E3 DG408DQ DG408DQ-E3 DG408DQ-T1 DG408DQ-T1-E3
ORDERING INFORMATION - DG409
Temp Range Package 16-Pin Plastic DIP Part Number DG409DJ DG409DJ-E3 DG409DY DG409DY-E3 DG409DY-T1 DG409DY-T1-E3 DG409DQ DG409DQ-E3 DG409DQ-T1 DG409DQ-T1-E3
16-Pin SOIC - 40 to 85 C
16-Pin SOIC - 40 to 85 C
16-Pin TSSOP
16-Pin TSSOP
ABSOLUTE MAXIMUM RATINGS
Parameter Voltages Referenced to VDigital Inputsa , VS, VD V+ GND Limit 44 25 (V-) - 2 to (V+) + 2 or 20 mA, whichever occurs first 30 100 - 65 to 150 - 65 to 125 450 600 900 750 mW (AK Suffix) (DJ, DY Suffix) 16-Pin Plastic DIPc Power Dissipation (Package)b 16-Pin Narrow SOIC and TSSOPd 16-Pin CerDIPe LCC-20f V Unit
Current (Any Terminal) Peak Current, S or D (Pulsed at 1 ms, 10 % duty cycle max) Storage Temperature
mA C
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 Parameter Analog Switch Analog Signal Rangee Drain-Source On-Resistance rDS(on) Matching Between Channelsg Source Off Leakage Current Symbol VANALOG rDS(on) rDS(on) IS(off) VD = 10 V, IS = - 10 mA VD = 10 V VS = 10 V VD = 10 V, VEN = 0 V VD = 10 V VS = 10 V VEN = 0 V VS = VD = 10 Sequence Each Switch On DG408 DG409 DG408 DG409 VAL = 0.8 V, VAH = 2.4 Vf Tempb Full Room Full Room Room Full Room Full Room Full Room Full Room Full Full Full VA = 2.4 V, 15 V VEN = 0 V, 2.4 V, VA = 0 V f = 1 MHz See Figure 2 See Figure 4 See Figure 3 CL = 10 nF, VS = 0 V VEN = 0 V, RL = 1 k f = 100 kHz VEN = 0 V, VS = 0 V, f = 1 MHz VEN = 0 V VD = 0 V f = 1 MHz DG408 DG409 DG408 DG409 Full Full Room Full Room Room Full Room Room Room Room Room Room Room Room Full Full Room Full Full 8 160 10 115 105 20 - 75 3 26 14 37 25 10 1 0.2 - 75 0.5 2 - 500 - 500 75 - 75 0.5 2 75 pF 150 225 150 250 10 150 150 pC dB ns 250 - 10 - 10 - 0.5 - 50 -1 - 100 -1 - 50 -1 - 100 -1 - 50 2.4 0.8 10 10 - 10 - 10 40 Typc A Suffix - 55 to 125 C Mind - 15 Maxd 15 100 125 15 0.5 50 1 100 1 50 1 100 1 50 - 0.5 -5 -1 - 20 -1 - 10 -1 - 20 -1 - 10 2.4 0.8 10 10 D Suffix - 40 to 85 C Mind - 15 Maxd 15 100 125 15 0.5 5 1 20 1 10 1 20 1 10 Unit V %
Drain Off Leakage Current
ID(off)
nA
Drain On Leakage Current Digital Control Logic High Input Voltage Logic Low Input Voltage Logic High Input Current Logic Low Input Current Logic Input Capacitance Dynamic Characteristics Transition Time Break-Before-Make Interval Enable Turn-On Time Enable Turn-Off Time Charge Injection Off Isolationh Source Off Capacitance Drain Off Capacitance Drain On Capacitance Power Supplies Positive Supply Current Negative Supply Current Positive Supply Current Negative Supply Current
ID(on)
VINH VINL IAH IAL Cin tTRANS tOPEN tON(EN) tOFF(EN) Q OIRR CS(off) CD(off) CD(on)
V A pF
I+ II+ I-
VEN = VA = 0 V or 5 V VEN = 2.4 V, VA = 0 V
A mA A
Document Number: 70062 S-71155-Rev. G, 11-Jun-07
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DG408/409
Vishay Siliconix
SPECIFICATIONSa FOR SINGLE SUPPLY
Test Conditions Unless Otherwise Specified V+ = 12 V, V- = 0 V Parameter Analog Switch Drain-Source On-Resistancee,f Dynamic Characteristics Switching Time of Multiplexere Enable Turn-On Timee Enable Turn-Off Time Charge Injectione
e
A Suffix - 55 to 125 C Tempb Typc Mind Maxd
D Suffix - 40 to 85 C Mind Maxd Unit
Symbol
VAL = 0.8 V, VAH = 2.4 Vf
rDS(on)
VD = 3 V, 10 V, IS = - 1 mA
Room
90
tTRANS tON(EN) tOFF(EN) Q
VS1 = 8 V, VS8 = 0 V, VIN = 2.4 V VINH = 2.4 V, VINL = 0 V VS1 = 5 V CL = 1 nF, VS = 6 V, RS = 0
Room Room Room Room
180 180 120 5 pC ns
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. rDS(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.
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Document Number: 70062 S-71155-Rev. G, 11-Jun-07
DG408/409
Vishay Siliconix
TYPICAL CHARACTERISTICS 25 C, unless otherwise noted
80 V+ = 15 V V- = - 15 V 40 60 CD(on) 20 C S, D (pF) I D (pA) CD(off) 40 DG409 ID(off) DG409 ID(on) 0 DG408 ID(off) 60 VS = 0 V for ID(off) VS = VD for ID(on)
- 20 20 CS(off) - 40 0 - 15 - 10 -5 0 5 10 15 VANALOG - Analog Voltage (V) - 60 0 2 4 6 8 10 VANALOG - Analog V oltage (V) 12 DG408 ID(on)
Source/Drain Capacitance vs. Analog Voltage
Drain Leakage Current vs. Source/Drain Voltage (Single 12-V Supply)
20 15 V+ = 15 V V- = - 15 V
100 60 V+ = 15 V V- = - 15 V VS = -VD for ID(off) VD = VS(open) for ID(on) DG409 ID(off) IS(off) (pA) DG409 ID(on) DG408 ID(on), ID(off)
20 I D (pA)
10
- 20
5
- 60
0 V+ = 12 V V- = 0 V
- 100
-5
- 140 - 15
- 10 - 10 -5 0 5 10 VD or VS - Drain or Source Voltage (V) 15 - 15 - 10 -5 5 0 VS - Source Voltage (V) 10 15
Drain Leakage Current vs. Source/DrainVoltage
Source Leakage Current vs. Source Voltage
2.0
- 100 mA VSUPPLY = 15 V - 10 mA
1.5 - 1 mA V TH (V) VEN = 2.4 V 1.0 I- 100 A - 10 A 0.5 - 1 A VEN = 0 V or 5 V
0.0 4 8 12 +VSUPPLY (V) 16 20
- 0.1 A 100 1k 10 k 100 k 1M 10 M Switching Frequency (Hz)
Input Switching Threshold vs. Supply Voltage
Negative Supply Current vs. Switching Frequency
Document Number: 70062 S-71155-Rev. G, 11-Jun-07
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DG408/409
Vishay Siliconix
TYPICAL CHARACTERISTICS 25 C, unless otherwise noted
100 mA VSUPPLY = 15 V 10 A 10 mA 1 A VEN = 2.4 V I+ 1 mA 100 nA 10 nA 1 nA - (I-) VEN = 0 V or 5 V 10 A 100 1k 10 k 100 k 1M 10 M 100 pA 10 pA - 55 - 35 - 15 5 25 45 65 85 105 125 VSUPPLY = 15 V VA = 0 V VEN = 0 V I+ 100 A
100 A
Switching Frequency (Hz)
I+, I-
Temperature (C)
Positive Supply Current vs. Switching Frequency
90 20 80 70 15 I+ (A) Q (pC) 60 50 40 30 20 5 10 0 0 - 55 - 35 - 15 5 25 45 65 85 105 125 - 10 - 15
ISUPPLY vs. Temperature
CL = 10000 pF VIN = 5 Vp-p
10
V+ = 15 V V- = - 15 V VIN = 0 V VEN = 0 V
V+ = 15 V V- = - 15 V
V+ = 12 V V- = 0 V - 10 -5 0 5 10 15
Temperature (C)
VS - Source Voltage (V)
Positive Supply Current vs. Temperature (DG408)
120 160 140 100
Charge Injection vs. Analog Voltage
V+ = 7.5 V 5V 120 100 8V 10 V 12 V r DS(on) () 80 60 40 10 V 12 V 15 V 20 V
80 r DS(on) ()
60
40 22 V V- = 0 V 20 0 - 16 - 12 -8 -4 0 4 8 12 16 20 0 4 8 12 16 20 22 20 V
20
15 V
0 - 20
VD - Drain Voltage (V)
VD - Drain Voltage (V)
rDS(on) vs. VD and Supply
rDS(on) vs. VD and Supply (Single Supply)
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Document Number: 70062 S-71155-Rev. G, 11-Jun-07
DG408/409
Vishay Siliconix
TYPICAL CHARACTERISTICS 25 C, unless otherwise noted
80 70 60 50 40 30 20 10 0 - 15 - 10 -5 0 5 10 15 0 C - 40 C V+ = 15 V V- = - 15 V 110 85 C 125 C 90 r DS(on) () r DS(on) () 85 C 25 C 25 C 70 0 C - 40 C - 55 C 30 V+ = 12 V V- = 0 V 130 125 C
50 - 55 C
10 0 2 4 6 8 10 12 VS - Source Voltage (V) VS - Source Voltage (V)
rDS(on) vs. VS and Temperature
- 150 V+ = 15 V V- = - 15 V RL = 1 k 1
rDS(on) vs. VS and Temperature (Single Supply)
RL = 1 k 0 -1 V+ = 15 V V- = - 15 V Ref. 1 Vrms
- 130
- 110 LOSS (dB) (dB) -2 -3 -4 Crosstalk - 50 - 30 100 1k 10 k 100 k 1M 10 M 100 M -5 -6 10 100
- 90 Off-Isolation - 70
RL = 50
1k
10 k
100 k
1M
10 M
100 M
f - Frequency (Hz)
f - Frequency (Hz)
Off Isolation and Crosstalk vs. Frequency
200 tTRANS 175 225 t (ns) 150 t (ns) 200 175 tOFF(EN) 100 tON(EN) 75 10 125 100 12 14 16 VSUPPLY (V) 18 20 22 8 9 275 250
Insertion Loss vs. Frequency
tTRANS
125
tOFF(EN) 150 tON(EN)
10
11
12
13
14
15
VSUPPLY (V)
Switching Time vs. Bipolar Supply)
Switching Time vs. Single Supply
Document Number: 70062 S-71155-Rev. G, 11-Jun-07
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DG408/409
Vishay Siliconix
SCHEMATIC DIAGRAM (TYPICAL CHANNEL)
V+ GND VREF D A0 V+ AX Level Shift Decode/ Drive V-
S1 V+ EN Sn V-
Figure 1.
TEST CIRCUITS
+ 15 V V+ A2 A1 A0 EN GND 50 - 15 V VS1 + 15 V V+ A1 A0 S1 S1a - S4a, Da 10 V VS8 10 V VO 300 - 15 V 35 pF tTRANS S1 ON S8 ON tTRANS 90 % Switch Output VO 0V 90 % V300 35 pF S1 S2 - S7 10 V
DG408
S8 D
10 V VO Logic Input 3V 50 % 0V
tr < 20 ns tf < 20 ns
DG409
EN GND 50 V-
S4b Db
Figure 2. Transition Time
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Document Number: 70062 S-71155-Rev. G, 11-Jun-07
DG408/409
Vishay Siliconix
TEST CIRCUITS
+ 15 V
V+ S1 EN A0 A1 A2 GND 50 - 15 V VS2 - S8 -5V
DG408
D 1 k VO 35 pF Logic Input 3V 50 % 0V tON(EN) 0V + 15 V Switch Output VO S1b -5V 90 % VO tOFF(EN) 10 % tr < 20 ns tf < 20 ns
V+ EN A0 A1 GND 50 - 15 V S1a - S4a, Da S2b - S4b
DG409
Db V1 k VO 35 pF
Figure 3. Enable Switching Time
+ 15 V
+ 2.4 V
EN
V+ All S and Da +5V
Logic Input
3V 50 % 0V
tr < 20 ns tf < 20 ns
A0 A1 A2 GND 50
DG408 DG409
Db, D V300
VO Switch Output 35 pF VO
VS
80 %
- 15 V
0V
tOPEN
Figure 4. Break-Before-Make Interval
Document Number: 70062 S-71155-Rev. G, 11-Jun-07
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DG408/409
Vishay Siliconix
TEST CIRCUITS
+ 15 V Rg SX EN A0 Channel Select A1 A2 GND VD VO CL 10 nF Switch Output VO VO is the measured voltage due to charge transfer error Q, when the channel turns off. Q = CL x VO V+ Logic Input 3V OFF 0V ON OFF
- 15 V
Figure 5. Charge Injection
+ 15 V + 15 V VIN VS Rg = 50 SX S8 A0 A1 A2 GND EN VRL 1 k D VO Rg = 50 VIN V+ VS S1 SX S8 A0 A1 A2 GND EN VRL 1 k D VO V+
- 15 V Off Isolation = 20 log VOUT VIN
- 15 V Crosstalk = 20 log VOUT VIN
Figure 6. Off Isolation
Figure 7. Crosstalk
+ 15 V + 15 V VS Rg = 50 A0 A1 A2 GND EN VRL 1 k D VO A2 Channel Select A1 A0 D GND - 15 V Insertion Loss = 20 log VOUT VIN EN V- 15 V S8 S1 V+ V+ S1 Meter HP4192A Impedance Analyzer or Equivalent f = 1 MHz
Figure 8. Insertion Loss
Figure 9. Source Drain Capacitance
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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
V+
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.
1N4148
SX D Vg
DG408
1N4148
V-
Figure 10. Overvoltage Protection Using Blocking Diodes
8-Channel Sequential Multiplexer/Demultiplexer
+ 15 V - 15 V
Differential 4-Channel Sequential Multiplexer/Demultiplexer
+ 15 V - 15 V
V+ S1 S2 S3 Analog Inputs (Outputs) S4 S5 S6 S7 S8 A0
GND
VAnalog Output (Input)
V+ S1a S2a Differential Analog Inputs (Outputs) S3a S4a
GND
V-
Da
DG408
D
DG409
S1b S2b S3b S4b A0 Db
Differential Analog Outputs (Inputs)
+ 15 V
A1
A2
EN + 15 V
A1
EN
Clock In NC
DM7493 BIN AIN r01
QB QC QD QA NC Clock In J Q 1/2 MM74C73 CLK K Q GND NC J Q 1/2 MM74C73 CLK K CLEAR 6 Q NC
r02 GND
+ 15 V Enable In (MUX On-Off Control) Reset Enable
CLEAR
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
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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
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