Product category:
Analogue and Mixed Signal ICs
News Release from: Vishay Siliconix | Subject: Analogue switches
Edited by the Electronicstalk Editorial
Team on 30 May 2005
Analogue switches run from Li-ion
batteries
A new family of analogue switches is designed for direct battery operation in portable applications.
A new family of analogue switches is designed for direct battery operation in portable applications Offering low on-resistance and low-level logic control through the full voltage range of 1.6 to 4.3V, the new switches are aimed at end products including cellphones, set-top boxes, PDAs and media players
This article was originally published on Electronicstalk on 24 Oct 2005 at 8.00am (UK)
Related stories
Switches are well suited to portable devices
A new family of dual SPDT and dual SPST analogue switches is designed for audio, video and data-stream applications.
Analogue switches are optimised for portable duty
SPDT switches combine low-voltage operation and low on-resistance ratings in a small package size for signal-routing applications in portable and battery-powered end products.
Built on the Vishay Siliconix low-voltage submicron CMOS process, the analogue switches can switch both audio and low-voltage power in portable applications.
The devices support continuous currents up to 300mA for reed relay replacement and load switching.
Their ability to run directly from lithium-ion battery power simplifies designs by removing the need for a voltage regulator.
Further reading
Switches are optimised for analogue applications
Quad SPST CMOS analogue switches combine high switching speeds with high signal bandwidth for low-distortion audio signal switching.
Analogue switches suit audio, video and data
High-voltage analogue switches combine extremely low on-resistance and low leakages with a compact size.
Novel power package reduces MOSFET on-resistance
Siliconix has released 14 industry-leading PowerPAK power MOSFETs featuring improved package technology that yields lower on-resistance devices.
All products offer bidirectional signal flow and rail-to-rail signal swing.
A choice of multiple configurations - including double-pole/double-throw (DPDT), single-pole/double-throw (SPDT) and single-pole/single-throw (SPST) - provides flexibility to the designers of set-top boxes, video games, and medical and industrial applications.
With their low on resistance and low on-resistance flatness and matching, these new switches enable a significant improvement in overall signal fidelity.
This is especially beneficial for low-distortion audio applications.
Low-level logic control is guaranteed throughout the voltage supply range.
For example, the DG2799 DPDT analogue switch guarantees 1.6V logic at a 4.3V power supply.
The device features low on-resistance of 0.25ohms typical at 2.7V and switch-on and -off times of 57 and 45ns, respectively.
It is packaged in a QFN-16 (3x3) package that helps to reduce board space requirements.
The new DG2714 is a break-before-make SPDT monolithic CMOS analogue switch that combines low-voltage operation from 1.6 to 3.6 V, on and off switching times of 51 and 33ns, and on-resistance of 0.85ohm typical in a compact SC-70 package.
The DG2715 and DG2716 are bidirectional SPST switches that feature low-voltage operation from a single 1.65 to 3.6V supply, fast switching speeds of 29 and 26ns, and low on-resistance values of 0.4ohm typical at 2.7V and 1.5ohm at 1.8V.
These two SPST switches, available in the SC-70 package, also offer excellent on-resistance flatness of 0.2ohm.
Also available, the DG2741, DG2742 and DG2743 are low-voltage, single-supply, dual SPST analogue switches with on-resistance values down to 0.4ohm typical at 2.7V, fast switching speeds of 30 and 28ns, and the ability to handle signals over the entire analogue voltage range.
On-resistance flatness and matching of 0.18 and 0.08ohm, respectively, ensure high accuracy between channels.
The DG274x switches are available in space-saving SOT23-8 and MSOP-8 packages.
Offered in lead (Pb)-free packaging, samples, and production quantities of the new analogue switches are available now, with lead times of six to eight weeks for larger orders.
Pricing for US delivery in 1000-piece quantities is $0.97 for the DG2799; $0.93 for the DG2741, DG2742 and DG2743; and $0.49 for the DG2714, DG2715 and DG2716.
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