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DG186/187/188
Vishay Siliconix
High-Speed Drivers with 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 Telemetry
DESCRIPTION
The DG186/187/188 are precision 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. on-resistance include audio switching, video switching, and data acquisition.
The major difference in the devices is the on-resistance (DG186--10 W, DG187--30 W, DG188--75 W). Reduced errors are achieved through low leakage current (ID(on) < 2 nA). Applications which benefit from the flat JFET
To achieve fast and accurate switch performance, each device comprises two 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.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
NC NC NC D1 S1 IN V+ VL 1 2 3 4 5 6 7 Dual-In-Line Top View 14 13 12 11 10 9 8 NC NC D2 S2 NC V- NC D1 S1 IN V+ VL
1 2 3 4 5 6 7 Flat Package Top View
14 13 12 11 10 9 8
NC NC D2 S2 NC V-* VR IN 3 4 S1 2 D1
D2
10 1 9
S2
NC 8 7 Metal Can Top View 5 VL 6 VR
V-*
Refer to JAN38510 Information, Military Section VR
V+
*COMMON TO SUBSTRATE AND CASE
TRUTH TABLE
Logic
0 1
SW1
OFF ON Logic "0" v 0.8 V 0 Logic "1" w 2.0 V 20
SW2
ON OFF
Document Number: 70033 S-52895--Rev. E, 16-Jun-97
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4-1
DG186/187/188
Vishay Siliconix
ORDERING INFORMATION
Temp Range Package
10-Pin Metal Can 10 Pi M l C
Part Number
DG186AA/883 DG187AA/883, JM38510/11105BIA DG188AA/883, JM38510/11106BIA DG186AP/883
-55 to 125 C 55 125_C 14-Pin Sid b 14 Pi Sidebraze
DG187AP/883, JM38510/11105BCA DG188AP DG188AP/883, JM38510/11106BCA JM38510/11105BXA 14-Pin Flat Pack JM38510/11106BXA
ABSOLUTE MAXIMUM RATINGS
V+ to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 V V+ to VD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 V VD to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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) DG186 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mA Current (S or D) DG187, DG188 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Current (All Other Pins) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to 150_C Power Dissipationa 10-Pin Metal Canb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450 mW 14-Pin Sidebrazec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 825 mW 14-Pin Flat Packd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 900 mW Notes: a. All leads welded or soldered to PC Board. b. Derate 6 mW/_C above 75_C c. Derate 11 mW/_C above 75_C d. Derate 10 mW/_C above 75_C
SCHEMATIC DIAGRAM (TYPICAL CHANNEL)
VL
V+
IN
S
D
VR
V-
FIGURE 1.
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Document Number: 70033 S-52895--Rev. E, 16-Jun-97
DG186/187/188
Vishay Siliconix
SPECIFICATIONSa For DG186
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 -2 -200 -7.5 7.5 0.05 0.05 0.04 0.03 -0.1 300 mA 15 10 20 10 1000 10 1000 10 1000 10 1000 nA A V W
Limits Tempb Mind Typc Maxd Unit
Symbol
V+ = 15 V, V- = -15 V, VL = 5 V VR = 0 V, VIN = 0.8 or 2 Vf
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 -250 <0.01 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 200 240 400 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 -2 -3 mA A 3.2 0.8
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: 70033 S-52895--Rev. E, 16-Jun-97
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4-3
DG186/187/188
Vishay Siliconix
SPECIFICATIONSa For DG187
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 -2 -200 -7.5 22 0.06 0.13 0.04 0.03 -0.02 15 30 60 1 100 1 100 1 100 1 100 nA A V W
Limits Tempb Mind Typc Maxd Unit
Symbol
V+ = 15 V, V- = -15 V, VL = 5 V VR = 0 V, VIN = 0.8 or 2 Vf
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 -250 <0.01 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 85 150 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 -2 -3 mA A 3.2 0.8
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: 70033 S-52895--Rev. E, 16-Jun-97
DG186/187/188
Vishay Siliconix
SPECIFICATIONSa For DG188
Test Conditions Unless Otherwise 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 = "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 -2 -200 -10 35 0.05 0.07 0.04 0.50 -0.03 15 75 150 1 100 1 100 1 100 1 100 nA A V W
Limits Tempb Mind Typc Maxd Unit
Symbol
V+ = 15 V, V- = -15 V, VL = 5 V VR = 0 V, VIN = 0.8 or 2 Vf
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 -250 <0.01 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 Room See Switching Time Test Circuit Room Room Room Room Room 120 100 9 6 14 >50 dB pF F 250 130 ns
VS = -5 V, ID = 0 VD = -5 V, IS = 0 VD = VS = 0 V f = 1 MHz, RL = 75 W
Power Supplies
Positive Supply Current Negative Supply Current Logic Supply Current Reference Supply Current I+ I- VIN = 0 V, or 5 V V IL IR Room Room -2 3.2 Room Room -3 mA A 0.8
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: 70033 S-52895--Rev. E, 16-Jun-97
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4-5
DG186/187/188
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Supply Current vs. Temperature
5 100 VINL = 0 VINH = 5 V 4 R (mA) 80
IIN vs. VIN and Temperature
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 DG188 210 190 t ON t OFF (ns) , 170 230
Switching Time vs. VD and Temperature (DG186)
VD = 7.5 V VD = -7.5 V tON
DG187 r DS(on) ( W )
10 DG186
tOFF 150 130
VD= -7.5 V IS = -10 mA 1 -50 -25 0 25 50 75 100 125 Temperature (_C)
110 90 -55
-35
-15
5
25
45
65
85
105 125
Temperature (_C)
Leakage vs. Temperature (DG186)
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 (DG187/188)
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: 70033 S-52895--Rev. E, 16-Jun-97
DG186/187/188
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
ID(off) vs. Temperature (DG187/188)
100 V+ = 10 V, V- = -20 V VD = -10 V, VS = 10 V 30
Capacitance vs. VD or VS (DG186)
f = 1 MHz 26
10 C S, D (pF) I D (nA) 22 CS(off)
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 (DG187/188)
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 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
DG187/188 DG186
V+ = 15 V, V- = -15 V VR = 0, VL = 5 V RL = 75 W VIN w 220 mVRMS
106
107
108
VD or VS - Drain or Source Voltage (V)
f - Frequency (Hz)
Document Number: 70033 S-52895--Rev. E, 16-Jun-97
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4-7
DG186/187/188
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 S2 IN VR
V+ D1 D2
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+ Positive Supply Voltage (V)
15b DG186 DG187 10 12 15b DG188 10 12
Switch
V- Negative Supply Voltage (V)
-15 -20 -12 -15 -20 -12
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
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: 70033 S-52895--Rev. E, 16-Jun-97

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