Low Capacitance, Low Charge Injection,

±15 V/12 V iCMOS™ SPDT in SOT-23

Preliminary Technical Data

ADG1219

Rev.

PrB

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FEATURES

<0.5 pC charge injection over full signal range

2.5 pF off capacitance

Low leakage; 0.6 nA maximum @ 85°C

120 Ω on resistance

Fully specified at +12 V, ±15 V

3 V logic-compatible inputs

Rail-to-rail operation

8-lead SOT-23 package

APPLICATIONS

Automatic test equipment

Data acquisition systems

Battery-powered systems

Sample-and-hold systems

Audio/video signal routing

Communication systems

FUNCTIONAL BLOCK DIAGRAM

ADG1219

DECODER

SA

IN

EN

SB

D

SWITCHES SHOWN FOR A LOGIC “0” INPUT

Figure 1.

GENERAL DESCRIPTION

The ADG1219 is a monolithic iCMOS device containing an

SPDT switch. An EN input is used to enable or disable the

device. When disabled, all channels are switched off. When on,

each channel conducts equally well in both directions and has

an input signal range that extends to the supplies. Each switch

exhibits break-before-make switching action.

The iCMOS (industrial CMOS) modular manufacturing

process combines high voltage CMOS (complementary metal-

oxide semiconductor) and bipolar technologies. It enables the

development of a wide range of high performance analog ICs

capable of 33 V operation in a footprint that no other generation

of high voltage parts has been able to achieve. Unlike analog ICs

using conventional CMOS processes, iCMOS components can

tolerate high supply voltages while providing increased perfor-

mance, dramatically lower power consumption, and reduced

package size.

The ultralow capacitance and exceptionally low charge injection

of these multiplexers make them ideal solutions for data

acquisition and sample-and-hold applications, where low glitch

and fast settling are required. Figure 2 shows that there is

minimum charge injection over the entire signal range of the

device. iCMOS construction also ensures ultralow power

dissipation, making the parts ideally suited for portable and

battery-powered instruments.

0.5

–0.5

–15

15

INPUT VOLTAGE (V)

0.4

0.3

0.2

0.1

0

–0.1

–0.2

–0.3

–0.4

–10

–5

0

5

10

Figure 2. Charge Injection vs. Input Voltage