|
|
Teilenummer | LF11202D |
|
Beschreibung | Quad SPST JFET Analog Switches | |
Hersteller | National Semiconductor | |
Logo | ||
Gesamt 18 Seiten 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’s first one chip quad
JFET switch. A unique circuit technique is employed to main-
tain a constant resistance over the analog voltage range of
±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 ±15V supplies and swing a
±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 “ON” resistance for signals up to ±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: tOFF < tON
n High open switch isolation at 1.0 MHz: −50 dB
n Low leakage in “OFF” 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)
© 1999 National Semiconductor Corporation DS005667
www.national.com
Additional Test Circuits
DS005667-39
DS005667-40
FIGURE 3. tON, tOFF Test Circuit and Waveforms for a Normally Open Switch
DS005667-41
FIGURE 4. “OFF” Isolation, Crosstalk, Small Signal Response
Typical Performance Characteristics
“ON” Resistance
“ON” Resistance
“ON” Resistance
DS005667-23
DS005667-24
DS005667-25
www.national.com
6
6 Page Typical Applications (Continued)
8-Channel Analog Commutator with 6-Channel Select Logic
Chopper Channel Amplifier
DS005667-47
www.national.com
DS005667-48
12
12 Page | ||
Seiten | Gesamt 18 Seiten | |
PDF Download | [ LF11202D Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
LF11202 | Quad SPST JFET Analog Switches | National Semiconductor |
LF11202D | Quad SPST JFET Analog Switches | National Semiconductor |
Teilenummer | Beschreibung | Hersteller |
CD40175BC | Hex D-Type Flip-Flop / Quad D-Type Flip-Flop. |
Fairchild Semiconductor |
KTD1146 | EPITAXIAL PLANAR NPN TRANSISTOR. |
KEC |
www.Datenblatt-PDF.com | 2020 | Kontakt | Suche |