DG441L Datasheet, PDF (7/10 Pages) Vishay Siliconix – Precision Monolithic Quad SPST Low-Voltage CMOS Analog Switches

SCHEMATIC DIAGRAM (TYPICAL CHANNEL)
DG441L/442L
Vishay Siliconix
V+
IN_X
GND
V-
5-V Reg
TEST CIRCUITS
Level
Shift/
Drive
FIGURE 1.
S
V-
V+
D
V+
V+
V_S
S
D
IN
R_L
3V
1 kW
GND
V-
V-
V_O
C_L
35 pF
Logic
3V
Input
0V
50% 50%
t_r <20 ns
t_f <20 ns
Switch _VS
Input
V_O
80%
t_OFF
80%
Switch 0 V
Output
t_ON
C_L (includes fixture and stray capacitance)
Note:
Logic input waveform is inverted for DG442.
FIGURE 2. Switching Time
V+
DV
V+
R_g
S
D
V_O
V_O
IN_{X OFF}
O
ON
OFF
IN
3V
GND
V-
C_L
1 nF
(DG441)
OFF
IN_X
(DG442)
ON
Q = DV_O x C_L
OFF
V-
FIGURE 3. Charge Injection
Document Number: 71399
S-03294—Rev. D, 17-Mar-03
www.vishay.com
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