0.28 Ω CMOS 1.65 V to 3.6 V

Single SPST Switches in SC70

ADG841/ADG842

Rev. 0

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FEATURES

Ultralow on resistance

0.28 Ω typical

0.48 Ω max at 125°C

Excellent audio performance, ultralow distortion

0.025 Ω typical

1.65 V to 3.6 V single supply

High current carrying capability

300 mA continuous current

500 mA peak current

Automotive temperature range: –40°C to +125°C

Rail-to-rail operation

Typical power consumption (<0.01 µW)

FUNCTIONAL BLOCK DIAGRAM

SWITCHES SHOWN

FOR A LOGIC 1 INPUT

ADG841

S

IN

D

ADG842

S

IN

D

Figure 1.

APPLICATIONS

Handsets

PDAs

MP3 players

Power routing

Battery-powered systems

Communication systems

Modems

PCMCIA cards

GENERAL DESCRIPTION

The ADG841 and ADG842 are low voltage CMOS devices

containing a single-pole, single-throw (SPST) switch. The

ADG841 is closed for a Logic 1 input and the ADG842 is open

for a Logic 1 input. The devices offer ultralow on resistance of

less than 0.48 Ω over the full temperature range. The ADG841/

ADG842 are fully specified for 3.3 V, 2.5 V, and 1.8 V supply

operation.

Each switch conducts equally well in both directions when on,

and has an input signal range that extends to the supplies. The

ADG841/ADG842 exhibit break-before-make switching action.

The ADG841/ADG842 are available in a 6-lead SC70 package.

PRODUCT HIGHLIGHTS

1.

<0.48 Ω over full temperature range of –40°C to +125°C.

2.

Compatible with 1.8 V CMOS logic.

3.

High current handling capability (300 mA continuous

current at 3.3 V).

4.

Low THD + N (0.02% typ).

5.

Tiny SC70 package.

Table 1. ADG841/ADG842 Truth Table

Logic (IN)

ADG841

ADG842

0

Off

On

1

On

Off