a
0.5 n CMOS
1.8 V to 5.5 V 2:1 Mux/SPDT Switches
ADG819/ADG820
FEATURES
Low On Resistance 0.8 n Max at 125°C
0.25 n Max On Resistance Flatness
1.8 V to 5.5 V Single Supply
200 mA Current Carrying Capability
Automotive Temperature Range: –40°C to +125°C
Rail-to-Rail Operation
6-Lead SOT-23 Package, 8-Lead /SOIC Package, and
6-Bump MicroCSP (Micro Chip Scale Package) ADG819
Fast Switching Times
Typical Power Consumption (<0.01 /W)
TTL-/CMOS-Compatible Inputs
Pin Compatible with the ADG719 (ADG819)
FUNCTIONAL BLOCK DIAGRAM
ADG819/
ADG820
S2
D
S1
IN
SWITCHES SHOWN
FOR A LOGIC “1” INPUT
APPLICATIONS
Power Routing
Battery-Powered Systems
Communication Systems
Data Acquisition Systems
Cellular Phones
Modems
PCMCIA Cards
Hard Drives
Relay Replacement
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
The ADG819 and the ADG820 are monolithic, CMOS, SPDT
(single-pole, double-throw) switches. These switches are designed
on a submicron process that provides low power dissipation yet
gives high switching speed, low On resistance, and low leakage
currents.
2. 1.8 V to 5.5 V single-supply operation
Low power consumption and an operating supply range of 1.8 V
to 5.5 V make the ADG819 and ADG820 ideal for battery-pow
ered, portable instruments.
1. Very low ON resistance, 0.5 Ω typical
3. High current carrying capability
4. Tiny 6-lead SOT-23 package, 8-lead µSOIC package,
and 2 × 3 bump 1.14 mm × 2.18 mm MicroCSP package
(ADG819 only)
Each switch of the ADG819 and the ADG820 conducts equally
well in both directions when on. The ADG819 exhibits break
before-make switching action, thus preventing momentary shorting
when switching channels. The ADG820 exhibits make-before
break action.
The ADG819 and the ADG820 are available in a 6-lead SOT-23
package and an 8-lead µSOIC package. The ADG819 is also
available in a 2 × 3 bump 1.14 mm × 2.18 mm MicroCSP
package. This chip occupies only a 1.14 mm × 2.18 mm area,
making it the ideal candidate for space-constrained applications.
REV. 0
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reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
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© Analog Devices, Inc., 2002
