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ADG436 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer ADG436
Beschreibung Dual SPDT Switch
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 8 Seiten
ADG436 Datasheet, Funktion
a
FEATURES
44 V Supply Maximum Ratings
VSS to VDD Analog Signal Range
Low On Resistance (12 Typ)
Low RON (3 Max)
Low RON Match (2.5 Max)
Low Power Dissipation
Fast Switching Times
tON < 175 ns
tOFF < 145 ns
Low Leakage Currents (5 nA Max)
Low Charge Injection (10 pC)
Break-Before-Make Switching Action
APPLICATIONS
Audio and Video Switching
Battery Powered Systems
Test Equipment
Communications Systems
Dual SPDT Switch
ADG436
FUNCTIONAL BLOCK DIAGRAM
S1A
D1
S1B
IN1
ADG436
S2A
D2
S2B
IN2
GENERAL DESCRIPTION
The ADG436 is a monolithic CMOS device comprising two
independently selectable SPDT switches. It is designed on an
LC2MOS process which provides low power dissipation yet
gives high switching speed and low on resistance.
The on resistance profile is very flat over the full analog input
range ensuring good linearity and low distortion when switching
audio signals. High switching speed also makes the part suitable
for video signal switching. CMOS construction ensures ultralow
power dissipation making the part ideally suited for portable and
battery powered instruments.
Each switch conducts equally well in both directions when ON
and has an input signal range which extends to the power sup-
plies. In the OFF condition, signal levels up to the supplies are
blocked. All switches exhibit break-before-make switching ac-
tion for use in multiplexer applications. Inherent in the design is
low charge injection for minimum transients when switching the
digital inputs.
PRODUCT HIGHLIGHTS
1. Extended Signal Range
The ADG436 is fabricated on an enhanced LC2MOS pro-
cess, giving an increased signal range which extends to the
supply rails.
2. Low Power Dissipation
3. Low RON
4. Single Supply Operation
For applications where the analog signal is unipolar, the
ADG436 can be operated from a single rail power supply.
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 1998






ADG436 Datasheet, Funktion
ADG436–Typical Performance Characteristics
26
TA = +25؇C
22
VDD = +5V
VSS = –5V
18
14 VDD = +10V
VSS = –10V
10
6
–15
VDD = +15V
VSS = –15V
–10 –5 0 5
VD, VS – Volts
10 15
Figure 1. RON as a Function of VD (VS):
Dual Supply
50
45
VDD = +5V
40 VSS = 0V
35
30
25
20
15
10
0
VDD = +10V
VSS = 0V
VDD = +15V
VSS = 0V
36
9 12
VD, VS – Volts
15
Figure 2. RON as a Function of VD (VS):
Single Power Supply
16
VDD = +16.5V
VSS = –16.5V
14
12
+85؇C
10
+25؇C
8 –40؇C
6
–15 –10 –5
0
5
VD, VS – Volts
10 15
Figure 3. RON as a Function of VD (VS)
for Different Temperatures: Dual
Supply
20
VDD = +16.5V
VSS = 0V
18
16
+85؇C
14
+25؇C
12
–40؇C
10
0 3 6 9 12 15
VD, VS – Volts
Figure 4. RON as a Function of VD (VS)
for Different Temperatures: Single
Supply
0.01
VDD = +16.5V
VSS = –16.5V
TA = +25؇C
0
0.01
VDD = +16.5V
VSS = –16.5V
TA = +25؇C
0
–0.01
–0.01
–0.02
–0.02
–0.03
–15 –10
–5 0 5
VD, VS – Volts
10 15
Figure 5. ID (ON) Leakage Current as a
Function of VD (VS): Dual Supply
–0.03
–15 –10
–5 0 5
VD, VS – Volts
10 15
Figure 6. IS (OFF) Leakage Current as
a Function of VD (VS): Dual Supply
0.01
VDD = +16.5V
VSS = –16.5V
TA = +25؇C
0
–0.01
–0.02
160
VD = 2V
VS = –2V
140
120
100
80
–0.03
–15 –10
–5 0
5
VD, VS – Volts
10 15
Figure 7. IS (ON) Leakage Current as a
Function of VD (VS): Dual Supply
60
0 5 10 15 20
VD, VS – Volts
Figure 8. Switching Time as a Func-
tion of VD (VS): Dual Supply
1
VDD = +16.5V
VSS = –16.5V
0.8 TA = +25؇C
0.6
0.4
0.2
0
0 200 400 600 800 1000
SWITCHING FREQUENCY – kHz
Figure 9. IDD as a Function of Switch-
ing Frequency: Dual Supply
–6– REV. A

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