Features: ±22-V Supply Voltage Rating
CMOS Compatible Logic
Low On-Resistance-rDS(on): 45
Low Leakage-ID(on): 20 pA
Single Supply Operation Possible
Extended Temperature Range
Fast Switching-tON: < 200 ns
Low Glitching-Q: 1 pC
ApplicationIndustrial Instrumentation
Test Equipment
Communications Systems
Disk Drives
Computer Peripherals
Portable Instruments
Sample-and-Hold Circuits
Pinout
SpecificationsVoltages Referenced to V
V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . .44 V
GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 V
Digital Inputsa VS, VD. . . . . . . . . . . . . . . . . . ..(V) 2 V to (V+) +2 V
or 30 mA, whichever occurs first
Current, Any Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 mA
Peak Current, S or D
(Pulsed at 1 ms, 10% duty cycle max) . . . . . . . . . . . . . . . . . .100 mA
Storage Temperature (AK, Suffix) . . . . . . . . . . . . . . .65 to 150
(DJ, DY, DQ Suffix) . . . . . . . . . .65 to 125
Power Dissipation (Package)b
16-Pin Plastic DIPc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .470 mW
16-Pin Narrow SOIC and TSSOPd . . . . . . . . . . . . . . . . . . . . .640 mW
16-Pin CerDIPe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .900 mW
DescriptionImproved Quad CMOS Analog Switches
The DG308B/309B analog switches are highly improved versions of the industry-standard DG308A/309. These devices are fabricated in Vishay Siliconix' proprietary silicon gate CMOS process, resulting in lower on-resistance, lower leakage, higher speed, and lower power consumption.
These quad single-pole single-throw switches are designed for a wide variety of applications in telecommunications, instrumentation, process control, computer peripherals, etc. An improved charge injection compensation design minimizes switching transients. The DG308B and DG309B can handle up to ±22-V input signals. An epitaxial layer prevents latchup.
All devices feature true bi-directional performance in the on condition, and will block signals to the supply levels in the off condition.
The DG308B is a normally open switch and the DG309B is a normally closed switch. (See Truth Table.)
DG309B Data Sheet
