ADG758 Ver la hoja de datos (PDF) - Analog Devices
Número de pieza
componentes Descripción
Fabricante
ADG758 Datasheet PDF : 12 Pages
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ADG758/ADG759
VDD
VSS
3V
VDD
A2
A1
VSS
S1
VS
A0 S2 THRU S8
ADG758*
ENABLE
DRIVE (VIN)
0V
V0
EN
D
VOUT
OUTPUT
VIN
50⍀
GND
RL
CL
300⍀
35pF
0V
50%
50%
0.9V0
tOFF (EN)
0.9V0
tON (EN)
*SIMILAR CONNECTION FOR ADG759
Test Circuit 7. Enable Delay, tON (EN), tOFF (EN)
RS
VS
VIN
VDD VSS
A2 VDD VSS
A1
A0 ADG758*
S
D
EN
GND
CL VOUT
1nF
3V
LOGIC INPUT
(VIN)
0V
VOUT
QINJ = CL ؋ ⌬VOUT
⌬VOUT
*SIMILAR CONNECTION FOR ADG759
Test Circuit 8. Charge Injection
VDD
0.1F
VSS
0.1F
2.4V
VDD
VSS
A2
A1
S
A0
D
EN
GND
50⍀
NETWORK
ANALYZER
50⍀
VS
VOUT
RL
50⍀
OFF ISOLATION = 20 LOG VOUT
VS
Test Circuit 9. OFF Isolation
VDD
0.1F
VSS
0.1F
NETWORK
ANALYZER
50⍀
VS
A2 VDD
A1
VSS
EN
A0 ADG758*
50⍀
S1
D
S2
S8
GND
2.4V
NETWORK
ANALYZER
VOUT
RL
50⍀
VDD
0.1F
VSS
0.1F
2.4V
VDD
VSS
A2
A1
S
A0
D
EN
GND
NETWORK
ANALYZER
50⍀
VS
VOUT
RL
50⍀
INSERTION LOSS = 20 LOG VOUT WITH SWITCH
VOUT WITHOUT SWITCH
Test Circuit 11. Bandwidth
Power-Supply Sequencing
When using CMOS devices, care must be taken to ensure correct
power-supply sequencing. Incorrect power-supply sequencing
can result in the device being subjected to stresses beyond the
maximum ratings listed in the data sheet. Digital and analog
inputs should always be applied after power supplies and ground.
For single-supply operation, VSS should be tied to GND as close
to the device as possible.
*SIMILAR CONNECTION FOR ADG759
CHANNEL-TO-CHANNEL
CROSSTALK
=
20
LOG
VOUT
VS
Test Circuit 10. Channel-to-Channel Crosstalk
REV. B
–11–
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