DG308B

DG308B, DG309B Vishay Siliconix Improved Quad CMOS Analog Switches DESCRIPTION The DG308B, DG309B analog switches are highly improved versions of the industry-standard DG308A, DG309. 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.) 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 BENEFITS Wide analog signal range Simple logic interface Higher accuracy Minimum transients Reduced power consumption Superior to DG308A, DG309 Space savings (TSSOP) APPLICATIONS Industrial instrumentation Test equipment Communications systems Disk drives Comput...