Document
Data Sheet
4.5 Ω RON, Triple/Quad SPDT ±5 V, +12 V, +5 V, and +3.3 V Switches
ADG1633/ADG1634
FEATURES
4.5 Ω typical on resistance 1 Ω on-resistance flatness Up to 206 mA continuous current ±3.3 V to ±8 V dual-supply operation 3.3 V to 16 V single-supply operation No VL supply required 3 V logic-compatible inputs Rail-to-rail operation ADG1633
16-lead TSSOP and 16-lead, 3 mm × 3 mm LFCSP ADG1634
20-lead TSSOP and 20-lead, 4 mm × 4 mm LFCSP
APPLICATIONS
Communication systems Medical systems Audio signal routing Video signal routing Automatic test equipment Data acquisition systems Battery-powered systems Sample-and-hold systems Relay replacements
GENERAL DESCRIPTION
The ADG1633 and ADG1634 are monolithic industrial CMOS (iCMOS®) analog switches comprising three independently selectable single-pole, double-throw (SPDT) switches and four independently selectable SPDT switches, respectively.
All channels exhibit break-before-make switching action that prevents momentary shorting when switching channels. An EN input on the ADG1633 (LFCSP and TSSOP packages) and ADG1634 (LFCSP package only) is used to enable or disable the devices. When disabled, all channels are switched off.
The ultralow on resistance and on-resistance flatness of these switches make them ideal solutions for data acquisition and gain switching applications, where low distortion is critical. iCMOS construction ensures ultralow power dissipation, making the parts ideally suited for portable and battery-powered instruments.
FUNCTIONAL BLOCK DIAGRAMS
ADG1633
S1A
D1
S1B S3B
D3
S2B
S3A
D2
S2A
LOGIC
08319-001
IN1 IN2 IN3 EN
SWITCHES SHOWN FOR A 1 INPUT LOGIC.
Figure 1. ADG1633 TSSOP and LFCSP
ADG1634
S1A
S4A
D1
D4
S1B
S4B
IN1
IN4
IN2
IN3
S2B
S3B
D2
D3
S2A
S3A
SWITCHES SHOWN FOR A 1 INPUT LOGIC.
Figure 2. ADG1634 TSSOP
08319-002
ADG1634
S1A
S4A
D1
D4
S1B
S4B
S2B
S3B
D2
D3
S2A
S3A
LOGIC
08319-003
IN1 IN2 IN3 IN4 EN
SWITCHES SHOWN FOR A 1 INPUT LOGIC.
Figure 3. ADG1634 LFCSP
Rev. B
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ADG1633/ADG1634
TABLE OF CONTENTS
Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagrams............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3
±5 V Dual Supply ......................................................................... 3 12 V Single Supply........................................................................ 4 5 V Single Supply .......................................................................... 5 3.3 V Single Supply....................................................................... 6
REVISION HISTORY
8/2016—Rev. A to Rev. B Changed CP-20-4 to CP-20-10 .................................... Throughout Changes to Figure 5 .......................................................................... 9 Changes to Figure 7 ........................................................................ 10 Updated Outline Dimensions ....................................................... 18 Changes to Ordering Guide .......................................................... 19
9/2014—Rev. 0 to Rev. A Changes to Figure 26, Figure 27, Figure 28................................. 14 Updated Outline Dimensions ....................................................... 17 Changes to Ordering Guide .......................................................... 19
7/2009—Revision 0: Initial Version
Data Sheet
Continuous Current per Channel, S or D..................................7 Absolute Maximum Ratings ............................................................8
ESD Caution...................................................................................8 Pin Configurations and Function Descriptions ............................9 Typical Performance Characteristics ........................................... 11 Test Circuits.........................................