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The Key Benefits:
- Run directly
from lithium-ion battery power and thereby eliminate the need for
a voltage regulator
- Offer low
on-resistance and low-level logic control across the full 1.6-V to
4.3-V voltage range
- Capable of
switching both audio and low-voltage power in portable
applications
- Support
continuous currents up to 300 mA for Reed Relay replacement and
load switching
- Feature low
rDS(on) and low on-resistance flatness and matching
that enable a significant improvement in overall signal
fidelity
The Key Applications:
- Signal switching in
end products including cell phones, set-top boxes, PDAs, media
players, video games, audio systems, and medical and industrial
applications
- Load
switching in portable electronic systems
The News:
Low-Voltage Analog Switch Family
Targets Portable Systems With Low On-Resistance, Direct Battery
Operation and Choice of Configuarations
Siliconix incorporated (NASDAQ: SILI), an 80.4%-owned
subsidiary of Vishay Intertechnology, Inc. (NYSE: VSH), announces
the release of a new family of analog switches designed for direct
battery operation in portable applications.
- Built on Vishay
Siliconix’s low-voltage submicron CMOS process to provide
efficient performance across the voltage range typical of portable
electronic systems
- Provide
design flexibility with availability in multiple configurations —
double-pole/double-throw (DPDT), single-pole/double-throw (SPDT),
and single-pole/single-throw (SPST)
- Operate from
battery power without the need for an external voltage
regulator
- Offer
excellent overall signal fidelity for low-distortion audio
applications
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New Vishay
Siliconix Analog Switches for Portable Applications: Summary
Table
|
Part Number
|
Configuration
|
Supply Voltage (V)
|
rDS(on)
max. @
2.7 V (Ohms)
|
rDS(on)
flatness
max.
(Ohms)
|
Continuous load current (mA)
|
Logic Level
|
Package
|
1K Price
for U.S.
Delivery
|
| DG2714 |
SPDT
|
1.6-4.3
|
1.2
|
0.2
|
200
|
1.5 V @ 3 V supply
|
SC-70
|
$0.49
|
| DG2715 |
SPST, NO
|
1.65-3.6
|
0.6
|
0.2
|
200
|
1.4 V @ 3 V supply
|
SC-70
|
| DG2716 |
SPST, NC
|
| DG2741 |
Dual SPST
|
1.6-4.3
|
0.8
|
0.18
|
200
|
1.4 V @ 3 V supply
|
MSOP 8SOT23-8
|
$0.93
|
| DG2742 |
| DG2743 |
| DG2799 |
Dual DPDT
|
1.65-4.3
|
0.45
|
0.15
|
300
|
1.6 V @ 4.3 V supply
|
QFN 16
|
$0.97
|
|
The Perspective: The new DG27xx family of low-voltage
analog switches targets portable systems with key electrical
specifications including low on-resistance down to 0.45 ohms,
low-level logic control through the full voltage range of 1.6 V to
4.3 V, and current handling up to 300 mA for load switching
applications. With a variety of available configurations and direct
operation from a lithium-ion battery, these new switches offer
flexibility in the design of a broad range of compact
electronics.
Availability: Samples and production quantities of
the new analog switches are available now, with lead times of six to
eight weeks for larger orders.
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