Document
DG180/181/182
Vishay Siliconix
High-Speed Drivers with Dual SPST 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 DG180/181/182 are precision dual single-pole, single-throw (SPST) 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 (DG180—10 W , DG181—30 W , DG182—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 four n-channel JFET transistors and a TTL compatible bipolar driver. 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
S1 D1 NC NC IN1 V+ VL
1 2 3 4 5 6 7 Dual-In-Line Top View
14 13 12 11 10 9 8
S2 D2 NC NC IN2 V– VR S1 D1 NC NC IN1 V+ VL 1 2 3 4 5 6 7 14 13 12 Flat Package 11 Top View 10 9 8 S2 D2 NC NC IN2 V–* VR IN1 D1 2 3 4 Refer to JAN38510 Information, Military Section V+ S1
S2 D2 9 IN2 8 7 6 5 VL VR V–
10 1
Metal Can Top View
*Common to Substrate and Case
TRUTH TABLE
Logic
0 1 Logic “0” v 0.8 V Logic “1” w 2.0 20V Document Number: 70031 S-52895—Rev. D, 16-Jun-97 www.vishay.com S FaxBack 408-970-5600
Switch
ON OFF
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DG180/181/182
Vishay Siliconix
ORDERING INFORMATION
Temp Range
–25 to 85_C
Package
10-Pin Metal Can 14-Pin Sidebraze 10-Pin 10 Pi Metal M l Can C DG181BA DG180BP
Part Number
DG180AA/883, 5962-8767301IA DG181AA/883, JM38510/11101BIA DG182AA/883, JM38510/11102BIA DG180AP/883, 5962-8767301CA –55 55 to 125_C 14-Pin 14 Pi Sidebraze Sid b DG181AP/883, JM38510/11101BCA DG182AP/883, JM38510/11102BCA 5962-8767301XA 14-Pin Pack 14 Pi Flat Fl P k JM38510/11101BXA JM38510/11102BXA
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) DG180 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mA Current (S or D) DG181, DG182 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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.
www.vishay.com S FaxBack 408-970-5600
4-2
Document Number: 70031 S-52895—Rev. D, 16-Jun-97
DG180/181/182
Vishay Siliconix
SPECIFICATIONSa FOR DG180
Test Conditions Unless Specified Parameter Analog Switch
Analog Signal Rangee Drain-Source On-Resistance Source Off L k Leakage Current 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 .