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LC2MOS Precision 5 V/3 V Quad SPST Switches
ADG511/ADG512/ADG513
FEATURES +3 V, +5 V or ؎5 V Power Supplies Ultralow Power Dissipation (<0.5 W) Low Leakage (<100 pA) Low On Resistance (<50 ⍀) Fast Switching Times Low Charge Injection TTL/CMOS Compatible 16-Lead DIP or SOIC Package
APPLICATIONS Battery-Powered Instruments Single Supply Systems Remote Powered Equipment 5 V Supply Systems Computer Peripherals such as Disk Drives Precision Instrumentation Audio and Video Switching Automatic Test Equipment Precision Data Acquisition Sample Hold Systems Communication Systems Compatible with ؎5 V Supply DACs and ADCs such as
AD7840/AD7848, AD7870/AD7871/AD7872/AD7874/ AD7875/AD7876/AD7878
GENERAL DESCRIPTION The ADG511, ADG512 and ADG513 are monolithic CMOS ICs containing four independently selectable analog switches. These switches feature low, well-controlled on resistance and wide analog signal range, making them ideal for precision analog signal switching.
These switch arrays are fabricated using Analog Devices’ advanced linear compatible CMOS (LC2MOS) process which offers the additional benefits of low leakage currents, ultralow power dissipation and low capacitance for fast switching speeds with minimum charge injection. These features make the ADG511, ADG512 and ADG513 the optimum choice for a wide variety of signal switching tasks in precision analog signal processing and data acquisition systems.
The ability to operate from single +3 V, +5 V or ± 5 V bipolar supplies make the ADG511, ADG512 and ADG513 perfect for use in battery-operated instruments, 4–20 mA loop systems and with the new generation of DACs and ADCs from Analog Devices. The use of 5 V supplies and reduced operating currents give much lower power dissipation than devices operating from ± 15 V supplies.
FUNCTIONAL BLOCK DIAGRAMS
IN1
IN2 ADG511
IN3
IN4
S1 IN1
D1 S2
IN2
D2 S3
IN3
D3 S4
IN4
D4
ADG512
S1 IN1
D1 S2
IN2
D2 S3
IN3
D3 S4
IN4
D4
ADG513
SWITCHES SHOWN FOR A LOGIC "1" INPUT
S1
D1 S2
D2 S3
D3 S4
D4
The ADG511, ADG512 and ADG513 contain four independent SPST switches. The ADG511 and ADG512 differ only in that the digital control logic is inverted. The ADG511 switch is turned on with a logic low on the appropriate control input, while a logic high is required for the ADG512. The ADG513 contains two switches whose digital control logic is similar to that of the ADG511 while the logic is inverted in the remaining two switches.
PRODUCT HIGHLIGHTS 1. 5 Volt Single Supply Operation
The ADG511/ADG512/ADG513 offers high performance, including low on resistance and wide signal range, fully specified and guaranteed with +3 V, ± 5 V as well as +5 V supply rails.
2. Ultralow Power Dissipation CMOS construction ensures ultralow power dissipation.
3. Low RON
4. Break-Before-Make Switching Switches are guaranteed to have break-before-make operation. This allows multiple outputs to be tied together for multiplexer applications without the possibility of momentary shorting betwee.