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DG189/190/191
Vishay Siliconix
High-Speed Drivers with Dual SPDT JFET Switches
FEATURES
D Constant On-Resistance Over Entire Analog Range D Low Leakage D Low Crosstalk D Rad Hardness
BENEFITS
D D D D D Low Distortion Eliminates Large Signal Errors High Precision High Bandwidth Capability Fault Protection
APPLICATIONS
D D D D D Audio Switching Video Switching Sample/Hold Guidance and Control Systems Aerospace
DESCRIPTION
The DG189/190/191 are precision dual single-pole, double-throw (SPDT) analog switches designed to provide accurate switching of video and audio signals. This series is ideally suited for applications requiring a constant on-resistance over the entire analog range. To achieve fast and accurate switch performance, each device comprises four n-channel JFET transistors and a TTL compatible bipolar driver. The driver is designed to achieve break-before-make switching action, eliminating the inadvertent shorting between channels and the crosstalk which would result. In the on state, each switch conducts current equally well in either direction. In the off condition, the switches will block up to 20 V peak-to-peak, with feedthrough of less than -60 dB at 10 MHz.
The major difference in the devices is the on-resistance (DG189--10 W, DG190--30 W, DG191--75 W). Reduced errors are achieved through low leakage current (ID(on) < 2 nA). Applications which benefit from the flat JFET on-resistance include audio switching, video switching, and data acquisition.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
Dual-In-Line D1 NC D3 S3 S4 D4 NC D2 1 2 3 4 5 6 7 8 Top View 16 15 14 13 12 11 10 9 S1 IN1 V- VR VL V+ IN2 S2 S4 D4 D2 S2 IN2 V+ VL Flat Package 1 2 3 4 5 6 7 Top View Refer to JAN38510 Information, Military Section *Common to Substrate and Case 14 13 12 11 10 9 8 S3 D3 D1 S1 IN1 V-* VR
TRUTH TABLE
Logic
0 1
SW1, SW2
OFF ON Logic "0" v 0.8 V Logic "1" w 2.4 V 24
SW3, SW4
ON OFF
Document Number: 70034 S-52880--Rev. C, 28-Apr-97
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DG189/190/191
Vishay Siliconix
ORDERING INFORMATION
Temp Range
-25 to 85 C 25 85_C
Package
DG189BP 16-Pin Sidebraze 16 Pi Sid b DG190BP DG191BP
Part Number
DG189AP/883, 5962-9068901MEA 16-Pin Sidebraze 16 Pi Sid b -55 to 125 C 55 125_C 14-Pin Flat Pack JM38510/11108BXA DG190AP/883, JM38510/11107BEA DG191AP/883, JM38510/11108BEA JM38510/11107BXA
ABSOLUTE MAXIMUM RATINGS
V+ to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 V V+ to VD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 V VS, VD to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 33 V VD to VD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "22 V VL to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 V VL to VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V VL to VR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V VIN to VR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V VR to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 V VR to VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 V Current (S or D) DG189 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mA Notes: a. All leads welded or soldered to PC Board. b. Derate 12 mW/_C above 75_C c. Derate 10 mW/_C above 75_C Current (S or D) DG190, DG191 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Current (All Other Pins) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to 150_C Power Dissipationa 16-Pin Sidebrazeb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 900 mW 14-Pin Flat Packc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 900 mW
SCHEMATIC DIAGRAM (TYPICAL CHANNEL)
VL
V+
IN
S
D
VR
V-
FIGURE 1.
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Document Number: 70034 S-52880--Rev. C, 28-Apr-97
DG189/190/191
Vishay Siliconix
SPECIFICATIONSa FOR DG189
Test Conditions Unless Specified Parameter Analog Switch
Analog Signal Rangee Drain-Source On-Resistance Source Off Leakage Current Lk C t VANALOG rDS(on) IS = -10 mA, VD = -7.5 V VS = "10 V, VD = #10 V V+ = 10 V, V- = -20 V IS(off) VS = "7.5 V, VD = #7.5 V VS = "10 V, VD = #10 V V+ = 10 V, V- = -20 V ID(off) VS = "7.5 V, VD = #7.5 V ID(on) IDSS VD = VS = "7.5 V 2 ms Pulse Duration Full Room Full Room Hot Room Hot Room Hot Room Hot Room Hot Room 7.5 0.05 0.05 0.04 0.03 -0.1 300 -2 -200 -7.5 15 10 20 10 1000 10 1000 10 1000 10 1000 -10 -200 mA -7.5 15 15 25 15 300 15 300 15 300 15 300 nA A V W
A Suffix
-55 to 125_C
B Suffix
-25 to 85_C
Symbol
V+ = 15 V, V- = -15 V, VL = 5 V VR = 0 V, VIN = 0.8 V or 2 Vf
Tempb
Typc
Mind
Maxd
Mind
Maxd Unit
Drain Off Leakage Current Lk C t Channel On Leakage Current Saturation Drain Current
Digital Input
Input Current with Input Voltage High Input Current with Input Voltage Low IINH IINL VIN = 5 V VIN = 0 V Room Hot Full <0.01 10 20 -250 -250 10 20
mA
-30
Dynamic Characteristics
Turn-On Time Turn-Off Time Source-Off Capacitance Drain-Off Capacitance Channel-On Capacitance Off Isolation ton toff CS(off) CD(off) CD(on) OIRR f = 1 MHz MH VS = -5 V, ID = 0 VD = -5 V, IS = 0 VD = VS = 0 V f = 1 MHz, RL = 75 W Room See Switching Time Test Circuit Room Room Room Room Room 140 21 17 17 >55 dB pF 200 225 240 400 425 ns
Power Supplies
Positive Supply Current Negative Supply Current Logic Supply Current Reference Supply Current I+ I- IL IR VIN = 0 V, or 5 V V Room Room Room Room 0.6 -2.7 3.1 -1 -2 -5 4.5 -2 1.5 -5 mA A 4.5 1.5
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.
Document Number: 70034 S-52880--Rev. C, 28-Apr-97
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4-3
DG189/190/191
Vishay Siliconix
SPECIFICATIONSa FOR DG190
Test Conditions Unless Specified Parameter Analog Switch
Analog Signal Rangee Drain-Source On-Resistance VANALOG rDS(on) IS = -10 mA, VD = -7.5 V VS = "10 V, VD = #10 V V+ = 10 V, V- = -20 V IS(off) VS = "7.5 V, VD = #7.5 V VS = "10 V, VD = #10 V V+ = 10 V, V- = -20 V ID(off) VS = "7.5 V, VD = #7.5 V ID(on) VD = VS = "7.5 V Full Room Full Room Hot Room Hot Room Hot Room Hot Room Hot 18 0.06 0.1 0.05 0.06 -0.02 -2 -200 -7.5 15 30 60 1 100 1 100 1 100 1 100 -10 -200 -7.5 15 50 75 5 100 5 100 5 100 5 100 nA A V W
A Suffix
-55 to 125_C
B Suffix
-25 to 85_C
Symbol
V+ = 15 V, V- = -15 V, VL = 5 V VR = 0 V, VIN = 0.8 V or 2 Vf
Tempb
Typc
Mind
Maxd
Mind
Maxd Unit
Source Off Leakage Current Lk C t
Drain Off Leakage Current Lk C t
Channel On Leakage Current
Digital Input
Input Current with Input Voltage High Input Current with Input Voltage Low IINH IINL VIN = 5 V VIN = 0 V Room Hot Full <0.01 10 20 -250 -250 10 20
mA
-30
Dynamic Characteristics
Turn-On Time Turn-Off Time Source-Off Capacitance Drain-Off Capacitance Channel-On Capacitance Off Isolation ton toff CS(off) CD(off) CD(on) OIRR f = 1 MHz MH VS = -5 V, ID = 0 VD = -5 V, IS = 0 VD = VS = 0 V f = 1 MHz, RL = 75 W Room See Switching Time Test Circuit Room Room Room Room Room 95 9 6 14 >50 dB pF F 130 150 85 150 180 ns
Power Supplies
Positive Supply Current Negative Supply Current Logic Supply Current Reference Supply Current I+ I- IL IR VIN = 0 V, or 5 V V Room Room Room Room 0.6 -2.7 3.1 -1 -2 -5 4.5 -2 1.5 -5 mA A 4.5 1.5
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: 70034 S-52880--Rev. C, 28-Apr-97
DG189/190/191
Vishay Siliconix
SPECIFICATIONSa FOR DG191
Test Conditions Unless Specified Parameter Analog Switch
Analog Signal Rangee Drain-Source On-Resistance Source Off Leakage Current Lk C t VANALOG rDS(on) IS = -10 mA, VD = -7.5 V VS = "10 V, VD = #10 V V+ = 10 V, V- = -20 V IS(off) VS = "10 V, VD = #10 V VS = "10 V, VD = #10 V V+ = 10 V, V- = -20 V ID(off) VS = "10 V, VD = #10 V ID(on) VD = VS = "10 V Full Room Full Room Hot Room Hot Room Hot Room Hot Room Hot 35 0.05 0.07 0.04 0.05 -0.03 -2 -200 -10 15 75 150 1 100 1 100 1 100 1 100 -10 -200 -10 15 100 150 5 100 5 100 5 100 5 100 nA A V W
A Suffix
-55 to 125_C
B Suffix
-25 to 85_C
Symbol
V+ = 15 V, V- = -15 V, VL = 5 V VR = 0 V, VIN = 0.8 V or 2 Vf
Tempb
Typc
Mind
Maxd
Mind
Maxd Unit
Drain Off Leakage Current Lk C t Channel On Leakage Current
Digital Input
Input Current with Input Voltage High Input Current with Input Voltage Low IINH IINL VIN = 5 V VIN = 0 V Room Hot Full <0.01 10 20 -250 -250 10 20
mA
-30
Dynamic Characteristics
Turn-On Time Turn-Off Time Source-Off Capacitance Drain-Off Capacitance Channel-On Capacitance Off Isolation Positive Supply Current Negative Supply Current Logic Supply Current Reference Supply Current ton toff CS(off) CD(off) CD(on) OIRR I+ I- IL IR VIN = 0 V, or 5 V V f = 1 MHz MH VS = -5 V, ID = 0 VD = -5 V, IS = 0 VD = VS = 0 V f = 1 MHz, RL = 75 W Room See Switching Time Test Circuit Room Room Room Room Room Room Room Room Room 100 9 6 14 >50 0.6 -2.7 3.1 -1 -2 -5 4.5 -2 1.5 -5 mA A 4.5 1.5 dB pF F 130 150 120 250 300 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.
Document Number: 70034 S-52880--Rev. C, 28-Apr-97
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DG189/190/191
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Supply Current vs. Temperature
5 100
IIN vs. VIN and Temperature
VINL = 0 VINH = 5 V
4 R (mA)
80
I L , I-, I+, I
-I- 2 -IR 1 I+
I IN (m A)
3
IL
60
-IINL
40
20 IINH
0 -55 -35
-15
5
25
45
65
85
105
125
0 -55 -35
-15
5
25
45
65
85
105
125
Temperature (_C)
Temperature (_C)
rDS(on) vs. Temperature
100 DG191
Switching Time vs. VD and Temperature (DG189)
230 VD = 7.5 V 210 190 t ON t OFF (ns) , 170 tOFF 150 130 110 VD = -7.5 V tON
DG190 r DS(on) ( W )
10 DG189 VD= -7.5 V IS = -10 mA
1 -50 -25 0 25 50 75 100 125 Temperature (_C)
90 -55
-35
-15
5
25
45
65
85
105 125
Temperature (_C)
Leakage vs. Temperature (DG189)
100 V+ = 10 V V- = -20 V VL = 5 V VR = 0 t ON t OFF (ns) , 10 I S, I D (nA)
Switching Time vs. VD and Temperature (DG190/191)
130 120 110 100 90 80 70 tOFF VD = 7.5 V VD = -7.5 V tON
IS(off) 1 ID(on) ID(off)
60 50 -55
0.1 25 45 65 85 105 125 Temperature (_C)
-35
-15
5
25
45
65
85
105
125
Temperature (_C)
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Document Number: 70034 S-52880--Rev. C, 28-Apr-97
DG189/190/191
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
ID(off) vs. Temperature (DG190/191)
100 V+ = 10 V, V- = -20 V VD = -10 V, VS = 10 V 26 10 C S, D (pF) I D (nA) 22 CS(off) 30 f = 1 MHz
Capacitance vs. VD or VS (DG189)
B Suffix 1 A Suffix
18
CD(on)
14
CD(off)
0.1 25 45 65 85 Temperature (_C) 105 125
10 -8 -4 0 4 VD or VS - Drain or Source Voltage (V) 8
Capacitance vs. VD or VS (DG190/191)
20 18 16 14 C S, D (pF) ISO (dB) 12 10 8 6 4 2 0 -10 Capacitance is measured from test terminal to common. -8 -6 -4 -2 0 2 4 6 8 VD or VS - Drain or Source Voltage (V) 10 CS(off) CD(off) VINL = 0.8 V VINH = 2 V f = 1 MHz CD(on) 100 90 80 70 60 50 40 30 20 10 0 105
Off Isolation vs. Frequency
DG190/191 DG189
V+ = 15 V, V- = -15 V VR = 0, VL = 5 V RL = 75 W VIN w 220 mVRMS
106
107
108
f - Frequency (Hz)
Document Number: 70034 S-52880--Rev. C, 28-Apr-97
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DG189/190/191
Vishay Siliconix
TEST CIRCUITS
Feedthrough due to charge injection may result in spikes at the leading and trailing edge of the output waveform.
+5 V
+15 V tON: VS = 3 V tOFF: VS = -3 V Logic Input VO RL 1 kW V- tON -15 V Switch Output tOFF 0V CL 100 pF 3V 90% 0V 3V 50% 0V tr <10 ns tf <10 ns
VL VS1 VS2 S1 S3 IN VR
V+ D1 D3
CL (includes fixture and stray capacitance) RL VOUT + VS x R ) r
L DS(on)
-3 V
90%
FIGURE 2. Switching Time
APPLICATION HINTSa
V- Negative Supply Voltage (V)
-15 -20 -12 -15 -20 -12
Switch
DG189 DG190
V+ Positive Supply Voltage (V)
15b 10 12 15b
VL Logic Supply Voltage (V)
5 5 5 5 5 5
VR Reference Supply Voltage (V)
GND GND GND GND GND GND
VIN Logic Input Voltage VINH(min)/VINL(max
)
(V)
2.0/0.8 2.0/0.8 2.0/0.8 2.0/0.8 2.0/0.8 2.0/0.8
VS Analog Voltage Range (V)
-7.5 to 15 -12.5 to 10 -4.5 to 12 -10 to 15 -15 to 10 -7 to 12
DG191
10 12
Notes: a. Application Hints are for DESIGN AID ONLY, not guaranteed and not subject to production testing. b. Electrical Parameter Chart based on V+ = 15 V, VL = 5 V, VR = GND
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Document Number: 70034 S-52880--Rev. C, 28-Apr-97

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