DG612DY Vishay, DG612DY Datasheet - Page 8

• Manufacturer Part Number: DG612DY
• Description: Analog Switch ICs High-Speed Switch
• Manufacturer: Vishay

Specifications of DG612DY

• Number Of Switches: 4
• Switch Configuration: SPST
• On Resistance (max): 18 Ohms
• On Time (max): 50 ns
• Off Time (max): 35 ns
• Off Isolation (typ): 74 dB
• Bandwidth: 500 MHz
• Supply Voltage (max): 21 V
• Supply Voltage (min): 5 V
• Supply Current: 5 uA
• Maximum Power Dissipation: 600 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-16
• Minimum Operating Temperature: - 40 C
• Number Of Lines (input / Output): 4 / 4
• Off State Leakage Current (max): 20 nA
• Lead Free Status / Rohs Status: No RoHS Version Available

DG611, DG612, DG613
Vishay Siliconix
TEST CIRCUITS
APPLICATIONS
High-Speed Sample-and-Hold
In a fast sample-and-hold application, the analog switch
characteristics are critical. A fast switch reduces aperture
uncertainty. A low charge injection eliminates offset (step)
errors. A low leakage reduces droop errors. The CLC111, a
fast input buffer, helps to shorten acquisition and settling
times. A low leakage, low dielectric absorption hold capacitor
must
polypropylene are good choices. The JFET output buffer
reduces droop due to its low input bias current.
(see figure 5.)
www.vishay.com
8
V
be
g
Analog
used.
Input
5 V
R
g
Figure 3. Charge Injection
Polycarbonate,
S
IN
GND
+ 5 V
V
L
75 
5 V Control
+ 15 V
- 3 V
V+
V-
Input Buffer
D
CLC111
polystyrene
Figure 5. High-Speed Sample-and-Hold
C
1 nF
V
L
O
S
IN
and
1
/
4
+ 5 V
DG611
X
Pixel-Rate Switch
Windows, picture-in-picture, title overlays are economically
generated using a high-speed analog switch such as the
DG613. For this application the two video sources must be
sync locked. The glitch-less analog switch eliminates halos.
(see figure 6.)
GaAs FET Drivers
Figure 7 illustrates a high-speed GaAs FET driver. To turn
the GaAs FET on 0 V are applied to its gate via S
to turn it off, - 8 V are applied via S
low-power driver is especially suited for applications that
require a large number of RF switches, such as phased array
radars.
C = RF bypass
TA LK
+ 12 V
- 5 V
D
Isolation = 20 log
V
S
R
C
650 pF Polystyrene
g
HOLD
= 50 
1 V, 4 V
1 V, 4 V
Output Buffer
+
-
LF356
NC
Figure 4. Crosstalk
V
V
S
O
C
S
IN
S
IN
+ 5 V
1
2
V
1
2
GND
L
S11-0154-Rev. I, 31-Jan-11
Document Number: 70057
± 5 V Output
to A/D
- 3 V
2
V-
. This high-speed,
+ 15 V
V+
D
D
1
2
C
1
C
, whereas
50 
R
V
O
L