DG308B Datasheet, PDF (1/10 Pages) Vishay Siliconix – Improved Quad CMOS Analog Switches

DG308B/309B
Vishay Siliconix
Improved Quad CMOS Analog Switches
DESCRIPTION
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.)
FEATURES
• ± 22 V Supply Voltage Rating
• CMOS Compatible Logic
• Low On-Resistance - r_DS(on): 45 Ω
• Low Leakage - I_D(on): 20 pA
• Single Supply Operation Possible
• Extended Temperature Range
• Fast Switching - t_ON: < 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/309
• Space Savings (TSSOP)
APPLICATIONS
• Industrial Instrumentation
• Test Equipment
• Communications Systems
• Disk Drives
• Computer Peripherals
• Portable Instruments
• Sample-and-Hold Circuits
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
DG308B
Dual-In-Line, SOIC and TSSOP
IN_{1 1}
D₁
2
S₁
3
V-
4
GND
5
S₄
6
D₄
7
IN_{4 8}
16 ^IN2
15 ^D2
14 ^S2
V+
13
NC
12
11
S₃
10 ^D3
9
IN₃
TRUTH TABLE
Logic
0
1
Logic "0" ≤ 3.5 V
Logic "1" ≥ 11 V
DG308B
OFF
ON
Top View
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 70047
S-71241–Rev. F, 25-Jun-07
Pb-free
Available
RoHS*
COMPLIANT
DG309B
ON
OFF
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