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DG508A_MIL/509A_MIL
Vishay Siliconix
Single 8-Ch/Differential 4-Ch CMOS Analog Multiplexers
(Obsolete for non-hermetic. Use DG408/409 as pin-for-pin replacements.)
FEATURES
D D D D D D Low On-Resistance: 240 W TTL and CMOS Logic Compatible Low Power: 30 mW Break-Before-Make Switching 44-V Power Supply Rating Transition Time: 600 ns
BENEFITS
D D D D Easily Interfaced Low Power Consumption Low System Crosstalk Wide Analog Signal Range D D D D D
APPLICATIONS
Communication Systems ATE Data Acquisition Systems Audio Signal Routing and Multiplexing Medical Instrumentation
DESCRIPTION
The DG508A_MIL, an 8-channel single-ended analog multiplexer, is designed to connect one of eight inputs to a common output as determined by a 3-bit binary address (A0, A1, A2). enable (EN) are TTL or CMOS compatible over the full specified operating temperature range.
The DG509A_MIL, a dual 4-channel analog multiplexer, is designed to connect one of four differential inputs to a common output as determined by its 2-bit binary address (A0, A1) logic. Break-before-make switching action protects against momentary shorting of the input signals.
Fabricated in the Vishay Siliconix Plus-40 process, the absolute maximum voltage rating is extended to 44 V, allowing increased operating headroom for standard "15-V signal swings and operation with "20-V supplies. An epitaxial layer prevents latch up.
The DG508A_MIL/509A_MIL are available in hermetic packages. For plastic packages, use the DG408/409 as pin-for-pin replacements.
A channel in the on state conducts current equally well in both directions. In the off state each channel blocks voltages up to the power supply rails, normally 30 V peak-to-peak. An enable (EN) function allows for device selection when several multiplexers are used All control inputs, address (AX) and
For applications requiring address data latching, the DG528/529 is recommended. DG408/409 is recommended for higher precision applications. For wideband/video routing and multiplexing, the DG538A is recommended.
FUNCTIONAL BLOCK DIAGRAMS AND PIN CONFIGURATIONS
Dual-In-Line EN A0 EN V- S1 S2 S3 S4 D 1 2 3 4 5 6 7 8 Decoders/Drivers 16 15 14 13 12 11 10 A1 A2 GND S1 V+ NC S5 S6 S7 S8 S2 S3 7 8 15 14 S5 S6 6 Key 3 V- 4 5 2 1 20 19 18 17 GND V+ NC A0 LCC NC A1 A2
Decoders/Drivers
DG508A_MIL
16
DG508A_MIL
Top View
9
9 S4
10 D
11 NC
12 S8
13 S7
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Document Number: 70067 S-00405--Rev. C, 21-Feb-00
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DG508A_MIL/509A_MIL
Vishay Siliconix
FUNCTIONAL BLOCK DIAGRAMS AND PIN CONFIGURATIONS
ORDERING INFORMATION - DG508A_MIL
Temp Range
0 to 70_C -25 to 85_C -40 to 85_C
TRUTH TABLE - DG508A_MIL
A2
X 0 0 0 0 1 1 1 1
Package
16-Pin Plastic DIP 16-Pin CerDIP 16-Pin Narrow SOIC 16-Pin CerDIP LCC-20
Part Number
DG508ACJ DG508ABK DG508ADY DG508AAK DG508AAK/883 DG508AAZ/883 7705201EA 7705201EC 7705201FA 7705201FC JM38510/19007BEA JM38510/19007BEC
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
-55 to 125 C 55 125_C
16-Pin Sidebraze 16-Pin Flat Pack 16-Pin Sidebraze
Logic "0" = VAL v 0.8 V 0 Logic "1" = VAH w 2.4 V 1 X = Don't Care
Dual-In-Line and SOIC EN A0 EN V- S1a S2a S3a S4a Da 1 2 3 4 5 6 7 8 Decoders/Drivers 16 15 14 13 12 11 10 9 A1 GND V- V+ S1a S1b NC S2b S3b S4b Db S2a S3a 7 8 5 6 Key 3 4 2 A0
LCC NC A1 1 20
GND 19 18 17 16 15 14 V+ S1b NC S2b S3b
Decoders/Drivers
DG509A_MIL
9 S4a
10 Da
11 NC
12 Db
13 S4b
DG509A_MIL
Top View
Top View
ORDERING INFORMATION - DG509A_MIL
Temp Range Package
16-Pin CerDIP -55 to 125 C 55 125_C LCC-20 16-Pin Sidebraze
TRUTH TABLE - DG509A_MIL
A1
X 0 0 1 1
Part Number
DG509AAK DG509AAK/883 DG509AAZ/883 JM38510/19008BEA JM38510/19008BEC
A0
X 0 1 0 1
EN
0 1 1 1 1 Logic "0" = VAL v 0.8 V 0 Logic "1" = VAH w 2.4 V 1 X = Don't Care
On Switch
None 1 2 3 4
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Document Number: 70067 S-00405--Rev. C, 21-Feb-00
DG508A_MIL/509A_MIL
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to V- V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 V GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 V Digital Inputsa, VS, VD . . . . . . . . . . . . . . . . . . . . . . . . (V-) -2 V to (V+) +2 V or 20 mA, whichever occurs first Current (Any Terminal, Except S or D) . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Continuous Current, S or D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA Peak Current, S or D (Pulsed at 1 ms, 10% Duty Cycle Max) . . . . . . . . . . . . . . . . . . . . . . . . . 40 mA Storage Temperature (K Suffix) . . . . . . . . . . . . . . . . . . . -65 to 150_C (J and Y Suffix) . . . . . . . . . . . . . . -65 to 125_C
Power Dissipation (Package)b 16-Pin CerDIPc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 900 mW LCC-20c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 900 mW 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 12 mW/_C above 75_C.
SPECIFICATIONSa
Test Conditions Unless Otherwise Specified Parameter P Analog Switch
Analog Signal Rangee Drain-Source On-Resistance rDS(on) Match Source Off Leakage Current Drain Off Leakage Current Lk C t VANALOG rDS(on) DrDS(on) IS(off) VD = "10 V, IS = -200 mA -10 V < VS < 10 V VEN = 0 V, VS = "10 V VD = #10 V VEN = 0 V VD = "10 V VS = #10 V DG508A_MIL DG509A_MIL DG508A_MIL ID(on) VS = VD = "10 V DG509A_MIL Full Room Full Room Room Full Room Full Room Full Room Full Room Full -1 -50 -10 -200 -10 -100 -10 -200 -10 -100 -15 240 6 1 50 10 200 10 100 10 200 10 100 nA A 15 400 500 V W %
A Suffix
-55 to 125_C
Symbol S bl
V+ = 15 V, V- = -15 V VIN = 2.4 V, 0.8 Vf
Tempb T
Mind
Typc
Maxd U i Unit
ID(off)
Drain On Leakage Current Lk C t
Digital Control
Logic Input Current g p Input V lt I t Voltage High Hi h Logic Input Current Input Voltage Low VA = 2.4 V IAH VA = 15 V IAL VEN = 0 V, 2.4 V, VA = 0 V Room Full Room Full Room Full -10 -30 -10 -30 -0.002 0.006 -0.002 10 30 mA A
Dynamic Characteristics
Transition Time Break-Before-Make Time Enable Turn-On Time Enable Turn-Off Time Charge Injection Off Isolation Logic Input Capacitance Source Off Capacitance Drain Off Capacitance tTRANS tOPEN tON(EN) tOFF(EN) Q OIRR Cin CS(off) CD(off) See Figure 2 See Figure 4 See Figure 3 See Figure 5 VEN = 0 V, RL = 1 kW, CL = 15 pF VS = 7 VRMS, f = 500 kHz f = 1 MHz VEN = 0 V, VS = 0 V, f = 140 kHz VEN = 0 V, VD = 0 V , f = 140 kH kHz DG508A_MIL DG509A_MIL Room Room Room Room Room Room Room Room Room Room 0.6 0.2 1 0.4 6 68 8 6 25 12 www.vishay.com S FaxBack 408-970-5600 pF F 1.5 1.0 pC dB 1.0 ms
Document Number: 70067 S-00405--Rev. C, 21-Feb-00
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DG508A_MIL/509A_MIL
Vishay Siliconix
SPECIFICATIONSa
Test Conditions Unless Otherwise Specified Parameter P Power Supplies
Positive Supply Current Negative Supply Current I+ I- VEN = 0 V or 2.4 V Room Room -1.5 1.3 -0.7 2.4 mA
A Suffix
-55 to 125_C
Symbol S bl
V+ = 15 V, V- = -15 V VIN = 2.4 V, 0.8 Vf
Tempb T
Mind
Typc
Maxd U i Unit
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.
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
rDS(on) vs. VD and Power Supply
"5 V r DS(on) Drain-Source On-Resistance ( W ) - 500 2.0 400 "7.5 V 1.5 "10 V "15 V "20 V 100 0.5 V T (V) 300 2.5
Input Switching Threshold vs. V+ and V- Supply Voltages
200
1.0
0 -20
0 -15 -10 -5 0 5 10 15 20 "5 "10 "15 "20 VD - Drain Voltage (V) V+, V- Positive and Negative Supplies (V) 500 r DS(on) Drain-Source On-Resistance ( W ) - 450 400 350 300 250 25_C 200 150 100 50 0 -15 -10 -5 0 5 VD - Drain Voltage (V) 10 15 -55_C 125_C
16 14 12 10 Q (pC) 8 6 4 2 0 -15
Charge Injection vs. Analog Voltage (VS)
V+ = 15 V V- = -15 V
rDS(on) vs. VD and Temperature
V+ = 15 V V- = -15 V
-10
-5 0 5 VS - Source Voltage (V)
10
15
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Document Number: 70067 S-00405--Rev. C, 21-Feb-00
DG508A_MIL/509A_MIL
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Supply Current vs. Switching Frequency
6 V+ = 15 V V- = -15 V -20 I+ 2 I+, I- (mA) X TALK (dB) -40 Plastic -60 0 V+ = 15 V V- = -15 V ref. 0 dBm CerDIP
Crosstalk vs. Frequency
4
0
-2 I- -4
-80
-100
-6 10 k 100 k f - Frequency (Hz) 1M
-120 1k 10 k 100 k f - Frequency (Hz) 1M 10 M
Off Isolation vs. Frequency
0 V+ = 15 V V- = -15 V ref. 0 dBm CerDIP -40 ISOL (dB) Plastic -60 t TRANS , t OPEN (ns) 1400
Switching Time vs. Temperature
V+ = 15 V V- = -15 V 1200
-20
1000 tTRANS 800 tOPEN
-80
600
-100
400
-120 1k 10 k 100 k f - Frequency (Hz) 1M 10 M
200 -55 -35 -15 5 25 45 65 85 105 125 Temperature (_C)
Switching Time vs. Positive Supply Voltage
1100 1000 t TRANS , t OPEN (ns) 900 800 I D, I S 700 600 500 400 300 200 10 12 14 16 18 20 22 -55 tOPEN tTRANS 1 nA 100 nA 10 nA
Leakages vs. Temperature
V+ = 15 V V- = -15 V VD = "14 V
ID(on), ID(off)
100 pA IS(off)
10 pA
-35 -15
5
25
45
65
85
105
125
V+ - Positive Supply (V)
Temperature (_C)
Document Number: 70067 S-00405--Rev. C, 21-Feb-00
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DG508A_MIL/509A_MIL
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
25
IS(off) vs. Analog Voltage
20 V+ = 15 V V- = -15 V VS = -VD TA = 25_C
ID(on), ID(off) vs. Analog Voltage
V+ = 15 V V- = -15 V TA = 25_C 0
15
5 I S (pA) I D (pA) 0 -5 -20 IS(off)
ID(on) ID(off)
-40 -15
-25 -15
-10
-5
0
5
10
15
-60 -15
-10
-5
0
5
10
15
VS - Source Voltage (V)
VD - Drain Voltage (V)
Charge Injection vs. Power Supply Voltage
12
10
8 Q (pF)
6
4
2
0 5 10 15 20 25 V+, V- Positive and Negative Supplies (V)
SCHEMATIC DIAGRAM (TYPICAL CHANNEL)
V+ GND V+ A0 V+ V- AX V+ V- EN - + - + V- V+ V+ - + V- V+ Decode/ Drive V- Sx S1
D V-
FIGURE 1.
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Document Number: 70067 S-00405--Rev. C, 21-Feb-00
DG508A_MIL/509A_MIL
Vishay Siliconix
TEST CIRCUITS
+15 V V+ A2 A1 A0 EN GND 50 W -15 V VS1 Switch Output +15 V V+ A1 A0 S1 S1a - S4a, Da #10 V VO 300 W -15 V 35 pF "10 V 90% VS8 tTRANS S1 ON S8 ON tTRANS VO 0V 90% V- 300 W 35 pF S1 S2 - S7 S8 D #10 V VO Logic Input 3V 50% 0V tr <20 ns tf <20 ns "10 V
DG508A_MIL
DG509A_MILS4b
EN GND 50 W V- Db
FIGURE 2. Transition Time
+15 V
V+ S1 EN A0 A1 A2 50 W -15 V S2 - S8 -5V
DG508A_MIL
GND V- D 1 kW VO 35 pF
Logic Input
3V 50% 0V tON(EN) 0V
tr <20 ns tf <20 ns
tOFF(EN) 10%
+15 V
Switch Output VO S1b -5V 90%
V+ EN A0 A1 50 W -15 V S1a - S4a, Da S2b - S4b
DG509A_MIL
Db V- 1 kW VO 35 pF
GND
FIGURE 3. Enable Switching Time
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DG508A_MIL/509A_MIL
Vishay Siliconix
TEST CIRCUITS
+15 V
+2.4 V
EN
V+ All S and Da +5 V
Logic Input
3V 50% 0V
tr <20 ns tf <20 ns
A0 A1 A2
DG508A_MIL DG509A_MIL
Db, D GND V- 300 W Switch Output 35 pF VO 0V tOPEN VO VS 80%
50 W
-15 V
FIGURE 4. Break-Before-Make Interval
+15 V Rg SX EN Vg A0 Channel Select A1 A2 GND V- D VO CL 10 nF Switch Output DVO DVO is the measured voltage due to charge transfer error Q, when the channel turns off. Q = CL x DVO V+ Logic Input 3V OFF 0V ON OFF
-15 V
FIGURE 5. Charge Injection
+15 V +15 V VIN VS Rg = 50 W SX S8 A0 A1 A2 GND EN V- -15 V Off Isolation = 20 log VOUT VIN Crosstalk = 20 log RL 1 kW D VO Rg = 50 W V+ VS VIN S1 SX S8 A0 A1 A2 GND EN V- -15 V VOUT VIN RL 1 kW D VO V+
FIGURE 6. Off Isolation
FIGURE 7. Crosstalk
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Document Number: 70067 S-00405--Rev. C, 21-Feb-00
DG508A_MIL/509A_MIL
Vishay Siliconix
TEST CIRCUITS
+15 V
+15 V
VS Rg = 50 W
S1
V+ A2
V+
S1 Meter S8 HP4192A Impedance Analyzer or Equivalent f = 1 MHz
A0 A1 A2 GND EN V- -15 V
D RL 1 kW
VO
Channel Select
A1 A0
D GND EN V- -15 V
Insertion Loss = 20 log
VOUT VIN
FIGURE 8. Insertion Loss
FIGURE 9. Source Drain Capacitance
APPLICATIONSa
V+ Positive Supply Voltage (V)
15 10 12 8b
V- Negative Supply Voltage (V)
-15 -12 -10 -8
VIN Logic Input Voltage VINH(min)/VINL(max) (V)
2.4/0.8 2.4/0.8 2.4/0.6 2.4/0.4
VS or VD Analog Voltage Range (V)
-15 to 15 -12 to 12 -10 to 10 -8 to 8
Notes: a. Application Hints are for DESIGN AID ONLY, not guaranteed and not subject to production testing. b. Operation below "8 V is not recommended.
Overvoltage Protection
V+ v Vg v V-
+15 V 1N4148 V+
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 11). 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 becomes the power supply of the IC. From the point of view of the chip, nothing has changed, as long as the difference between VS and the V- rail 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.
DG508A_MIL
Internal Junction SX Vg Internal Junction D
V- 1N4148
-15 V
FIGURE 10. Overvoltage Protection Using Blocking Diodes
Document Number: 70067 S-00405--Rev. C, 21-Feb-00
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DG508A_MIL/509A_MIL
Vishay Siliconix
APPLICATIONS
+15 V V+ S1 Analog Inputs (Outputs) S8 +5 V QB QC QD r01 QA r02 GND NC A0 A1 A2 EN GND V-
-15 V
DG508A_MIL
D
Analog Output (Input)
CLOCK IN
DM7493
+15 V ENABLE IN (Multiplexer On-Off Control)
FIGURE 11. 8-Channel Sequential Multiplexer/ Demultiplexer
+15 V V+ S1a Differential Analog Inputs (Outputs) GND V-
-15 V
Da S4a DG509A_MIL S1b Db S4b A0 A1 EN
Differential Analog Output (Input)
+5 V
CLOCK IN
J Q 1/2 MM74C73 CLK K CLEAR Q GND NC
J Q 1/2 MM74C73 CLK K CLEAR Q NC
RESET ENABLE
FIGURE 12. Differential 4-Channel Sequential Multiplexer/ Demultiplexer
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Document Number: 70067 S-00405--Rev. C, 21-Feb-00
Legal Disclaimer Notice
Vishay
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc., or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Vishay for any damages resulting from such improper use or sale.
Document Number: 91000 Revision: 08-Apr-05
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