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Part: DG381B
Category:
Description: CMOS Analog Switches
Company: Vishay Intertechnology
Datasheet: Download DG381B datasheet File size : 304 kB
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DG381B/384B/387B/390B
Vishay Siliconix
CMOS Analog Switches
FEATURES
D D D D
BENEFITS
APPLICATIONS
"15-V Input Range D Full Rail-to-Rail Analog Signal Range D Low Level Switching Circuits Low rDS(on): 30 W D Minimizes Signal Error D Programmable Gain Amplifiers Single Supply Operation D Low Power Dissipation D Portable and Battery Powered Sytems Pin and Function Compatible with the JFET DG180 Family
DESCRIPTION
The DG381BDG390B series of monolithic CMOS analog switches was designed for applications in instrumentation, communications, and process control. This series is suited for applications requiring fast switching and nearly flat on-resistance over the entire voltage range. switches are ideal for battery powered applications, without sacrificing switching speed. Break-before-make switching action is guaranteed, and an epitaxial layer prevents latchup. Single supply operation is allowed by connecting the V rail to 0 V.
Designed on Vishay Siliconix' PLUS-40 CMOS process, these devices achieve low power consumption (3.5 mW typical) and excellent on/off switch performance. These
Each switch conducts equally well in both directions when on, and blocks up to the supply voltage when off. These switches are CMOS and quasi TTL logic compatible.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
DG381B
Plastic Dip S1 D1 NC NC IN1 V+ NC S2 D2 NC NC IN2 V GND
1 2 3 4 5 6 7
14 13 12 11 10 9 8
TRUTH TABLE
Logic
0 1 Logic "0" v 0.8 V Logic "1" w 4 V
Switch
ON OFF
Top View
Document Number: 71404 S-02968--Rev. A, 22-Jan-01
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DG381B/384B/387B/390B
Vishay Siliconix
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
DG384B
Dual-In-Line D1 NC D3 S3 S4 D4 NC D2 S1 IN1 V GND NC V+ IN2 S2
1 2 3 4 5 6 7 8 Top View
16 15 14 13 12 11 10 9
TRUTH TABLE
Logic
0 1 Logic "0" v 0.8 V Logic "1" w 4 V
Switch
OFF ON
DG387B
Dual-In-Line
NC NC D1 S1 IN V+ NC
1 2 3 4 5 6 7
14 13 12 11 10 9 8
NC NC D2 S2 NC V GND
TRUTH TABLE
Logic
0 1
SW1
ON OFF Logic "0" v 0.8 V Logic "1" w 4 V
SW2
OFF ON
Top View
DG390B
Dual-In-Line D1 NC D3 S3 S4 D4 NC D2 S1 IN1 V GND NC V+ IN2 S2
1 2 3 4 5 6 7 8 Top View
16 15 14 13 12 11 10 9
TRUTH TABLE
Logic
0 1
SW1, SW2
OFF ON Logic "0" v 0.8 V Logic "1" w 4 V
SW3, SW4
ON OFF
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Document Number: 71404 S-02968--Rev. A, 22-Jan-01
DG381B/384B/387B/390B
Vishay Siliconix
ORDERING INFORMATION
Temp Range DG381B
40 to 85_C 14-Pin Plastic DIP DG381BDJ
Package
Part Number
DG384B
40 to 85_C 16-Pin Plastic DIP DG384BDJ
DG387B
40 to 85_C 14-Pin Plastic DIP DG387BDJ
DG390B
40 to 85_C 16-Pin Plastic DIP DG390BDJ
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced to V V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 V GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 V Digital Inputsa, VS, VD . . . . . . . . . . . . . . . . . . . . . . . . (V) 2 V to (V+) +2V or 30 mA, whichever occurs first Current, Any Terminal Except S or D . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Continuous Current, S or D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA (Pulsed at 1 ms, 10% duty cycle max) . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 to 150_C Power Dissipationb 14-Pin Plastic DIPd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470 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 welded or soldered to PC Board. c. Derate 11 mW/_C above 75_C d. Derate 6.5 mW/_C above 25_C
SCHEMATIC DIAGRAM (TYPICAL CHANNEL)
V+
S
V VIN Level Shift/ Drive V+ GND D
V
FIGURE 1.
Document Number: 71404 S-02968--Rev. A, 22-Jan-01
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DG381B/384B/387B/390B
Vishay Siliconix
SPECIFICATIONSa
Test Conditions Unless Specified Parameter Analog Switch
Analog Signal Rangee Drain-Source On-Resistance Source Off Leakage Current Drain Off Leakage Current Drain On Leakage Current VANALOG rDS(on) IS(off) ID(off) ID(on) VD = "10 V, IS = 10 mA VS = "14 V, VD = #14 V VS = "14 V, VD = #14 V VD = VS = "14 V Full Room Full Room Hot Room Hot Room Hot 5 100 5 100 5 100 15 30 "0.1 "0.1 "0.1 15 50 75 5 100 5 100 5 100 nA V W
Limits
40 to 85_C
Symbol
V+ = 15 V, V = 15 V VIN = 0.8 V or 4 Vf
Tempb
Mind
Typc
Maxd
Unit
Digital Control
Input Current with Input Voltage High Input Current with Input Voltage Low VIN = 5 V IINH VIN = 15 V IINL VIN = 0 V Room Full Room Full Room Full 1 1 0.001 0.001 0.001 1 mA
Dynamic Characteristics
Turn-On Time Turn-Off Time Break-Before-Make Time Charge Injection Source-Off Capacitance Drain-Off Capacitance Channel-On Capacitance Input Capacitance Off-Isolation Crosstalk (Channel-to-Channel) tON tOFF tOPEN Q CS(off) CD(off) CD(on) CIN OIRR XTALK f = 1 MHz VIN = 0 V VIN = 15 V f = 1 MHz; VS, VD = 0 V Room See Figure 2 See Figure 3 CL = 0.01 mF, Rgen = 0 W Vgen = 0 V Room Room Room Room Room Room Room Room Room Room 150 130 50 10 14 14 40 6 7 62 74 dB pF pC ns
VIN = 0 V, RL = 1 kW W VS = 1 Vrms, f = 500 kHz
Power Supplies
Positive Supply Current Negative Supply Current Positive Supply Current Negative Supply Current I+ I I+ VIN = 0.8 V (All Inputs) I VIN = 4 V (One Input) (All Others = 0) Room Full Room Full Room Full Room Full 100 100 0.23 1 mA
0.001 0.001 0.001 100 mA
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.
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Document Number: 71404 S-02968--Rev. A, 22-Jan-01
DG381B/384B/387B/390B
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
rDS(on) vs. VD and Power Supply
100 r DS(on) Drain-Source On-Resistance ( W ) r DS(on) Drain-Source On-Resistance ( W ) TA = 25_C 80 "5 V 60 "7.5 V 40 "10 V "15 V 20 "20 V 60 V+ = 15 V V = 15 V 50
rDS(on) vs. VD and Temperature
40 125_C 30 25_C 20 55_C 10 15 10 5 0 5 10 15
0
20
15
10
5
0
5
10
15
20
VD Drain Voltage (V)
VD Drain Voltage (V)
Charge Injection vs. Analog Voltage (VS)
50 V+ = 15 V V = 15 V CL = 1 nF 500
Switching Time and Break-Before-Make Time vs. Positive Supply Voltage
V = 15 V TA = 25_C VINH = 4 V VINL = 0 V tOFF 300
40
400 t ON , t OFF (ns)
30 Q (pC)
20
200
tON
10
100 tOPEN DG301/303 Only
0 15
0 10 5 0 5 10 15 0 5 10 15 VS Source Voltage (V) V+ Positive Supply Voltage (V)
Input Switching Threshold vs. Positive Supply Voltage
5 V = 0 to 15V TA = 25_C 4 400 500
Supply Current vs. Temperature
300 3 V T (V) I+, I ( A) V+ = 15 V V = 15 V VIN = 4 V (One Input) (All Other = 0 V)
I+
2
1
0
5
V+ Positive Supply Voltage (V)
Document Number: 71404 S-02968--Rev. A, 22-Jan-01
ÇÇÇÇÇÇÇÇ ÇÇÇÇÇÇÇÇ ÇÇÇÇÇÇÇÇ ÇÇÇÇÇÇÇÇ
10 15
200
100 I 0 100 55
35
15
5
25
45
65
85
105
125
Temperature (_C)
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