TS5A4597_15 Datasheet, PDF (11/17 Pages) Texas Instruments – SINGLE-CHANNEL 8 SPST ANALOG SWITCH

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Capacitance
Meter
VBIAS
VNC NC
VCOM COM
VI IN
TS5A4597
SINGLEĆCHANNEL 8ĆW SPST ANALOG SWITCH
SCDS182 − FEBRUARY 2005
V+
GND
VBIAS = V+ or GND
VI = VIH or VIL
Capacitance is measured at NC,
COM, and IN inputs during ON
and OFF conditions.
VCOM(3)
Figure 16. Capacitance (C_I, C_COM(OFF), C_COM(ON), C_NC(OFF), C_NC(ON))
COM
V+
NC VNC
CL(2)
TEST
RL
CL
tON
300 Ω
35 pF
RL
tOFF
300 Ω
35 pF
VI
IN
Logic
Input(1)
GND
Logic
Input
(VI)
50%
V+
50%
0
tON
Switch
Output
(VNC)
90%
tOFF
90%
(1) _{All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr < 5 ns, tf < 5 ns.}
(2) _{CL includes probe and jig capacitance.}
(3) _{See Electrical Characteristics for VCOM.}
Figure 17. Turn-On (t_ON) and Turn-Off Time (t_OFF)
Network Analyzer
50 W
Source
Signal
50 W
VNC _NC
VI
IN
+
V+
COM
VCOM
GND
Channel ON: NC to COM
VI = V+ or GND
Network Analyzer Setup
Source Power = 0 dBm
(632-mV P-P at 50-W load)
DC Bias = 350 mV
Figure 18. Bandwidth (BW)
11