DG309BDY ,Improved Quad CMOS Analog Switches FaxBack 408-970-5600S-52896—Rev. E, 14-Jul-974-1DG308B/309BVishay Siliconix
DG308BDQ-DG308BDY-DG309BDQ-DG309BDY
Improved Quad CMOS Analog Switches
DG308BIN1 IN2 D2 S2 V+
GND NC S3 D3
IN4 IN3
Dual-In-Line, SOIC and TSSOP
Top View
DG308B/309B
Vishay Siliconix
Improved Quad CMOS Analog Switches�������� �������� ������������ 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 Wide Analog Signal Range Simple Logic Interface Higher Accuracy Minimum Transients Reduced Power Consumption Superior to DG308A/309 Space Savings (TSSOP) Industrial Instrumentation Test Equipment Communications Systems Disk Drives Computer Peripherals Portable Instruments Sample-and-Hold Circuits
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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.)
Logic “0” 3.5V
Logic “1” 11 V
