DG2018中文資料威世科技數(shù)據(jù)手冊PDF規(guī)格書

FEATURES

? Low voltage operation (1.8 V to 5.5 V)

? Low on resistance

- RDS(on): 6 Ω at 2.7 V

? Low voltage logic compatible

- DG2019: VINH = 1 V

? High bandwidth: 180 MHz

? QFN-16 package

BENEFITS

? Ideal for both analog and digital signal switching

? Reduced power consumption

? High accuracy

? Reduced PCB space

? Fast switching

? Low leakage

APPLICATIONS

? Cellular phones

? Audio and video signal routing

? PCMCIA cards

? Battery operated systems

? Portable instrumentation

DESCRIPTION

The DG2018 and DG2019 are low voltage, single supply

analog switches. The DG2018 is a dual double-pole/doublethrow

(DPDT) with two control inputs that each controls a

pair of single-pole/double-throw (SPDT). The DG2019 uses

one control pin to operate four independent SPDT switches.

When operated on a + 3 V supply, the DG2018’s control pins

are compatible with 1.8 V digital logic. The DG2019 has an

available feature of a VL pin that allows a 1.0 V threshold for

the control pin when VL is powered with 1.5 V.

Built on Vishay Siliconix’s low voltage submicron CMOS

process, the DG2018 and DG2019 are ideal for high

performance switching of analog signals; providing low onresistance

(6 Ω at + 2.7 V), fast speed (Ton, Toff at 42 ns and

16 ns), and a bandwidth that exceeds 180 MHz.

The DG2018 and DG2019 were designed to offer solutions

that extend beyond audio/video functions, to providing the

performance required for today’s demanding mixed-signal

switching in portable applications.

An epitaxial layer prevents latch-up. Brake-before-make is

guaranteed for all SPDT’s. All switches conduct equally well

in both directions when on, and blocks up to the power

supply level when off.