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LF11331D/883 Datasheet

  • LF11331D/883

  • Quad SPST JFET Analog Switches

  • 18頁(yè)

  • NSC

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LF11331/LF13331/LF11332/LF13332/LF11333/LF13333/LF11201/LF13201/LF11202/LF13202 Quad
SPST JFET Analog Switches
January 1995
LF11331/LF13331/LF11332/LF13332/LF11333/
LF13333/LF11201/LF13201/LF11202/LF13202
Quad SPST JFET Analog Switches
General Description
These devices are a monolithic combination of bipolar and
JFET technology producing the industry鈥檚 first one chip quad
JFET switch. A unique circuit technique is employed to main-
tain a constant resistance over the analog voltage range of
鹵
10V. The input is designed to operate from minimum TTL
levels,
and
switch
operation
also
ensures
a
break-before-make action.
These devices operate from
鹵
15V supplies and swing a
鹵
10V analog signal. The JFET switches are designed for ap-
plications where a dc to medium frequency analog signal
needs to be controlled.
Features
n
Analog signals are not loaded
n
Constant 鈥淥N鈥?resistance for signals up to
鹵
10V and
100 kHz
n
Pin compatible with CMOS switches with the advantage
of blow out free handling
n
Small signal analog signals to 50 MHz
n
Break-before-make action: t
OFF
<
t
ON
n
High open switch isolation at 1.0 MHz: 鈭?0 dB
n
Low leakage in 鈥淥FF鈥?state:
<
1.0 nA
n
TTL, DTL, RTL compatibility
n
Single disable pin opens all switches in package on
LF11331, LF11332, LF11333
n
LF11201 is pin compatible with DG201
Test Circuit and Schematic Diagram
DS005667-2
FIGURE 1. Typical Circuit for One Switch
DS005667-12
FIGURE 2. Schematic Diagram (Normally Open)
漏 1999 National Semiconductor Corporation
DS005667
www.national.com

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