DG643 Datasheet PDF - Vishay Siliconix
| Part Number | DG643 | |
| Description | Low On-Resistance Wideband/Video Switches | |
| Manufacturers | Vishay Siliconix | |
| Logo |  |
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DG641/642/643
Vishay Siliconix
Low On-Resistance Wideband/Video Switches
FEATURES
D Wide Bandwidth: 500 MHz
D Low Crosstalk at 5 MHz: –85 dB
D Low rDS(on): 5 W, DG642
D TTL Logic Compatible
D Fast Switching: tON 50 ns
D Single Supply Compatibility
D High Current: 100 mA, DG642
BENEFITS
D High Precision
D Improved Frequency Response
D Low Insertion Loss
D Improved System Performance
D Reduced Board Space
D Low Power Consumption
APPLICATIONS
D RF and Video Switching
D RGB Switching
D Video Routing
D Cellular Communications
D ATE
D Radar/FLIR Systems
D Satellite Receivers
D Programmable Filters
DESCRIPTION
The DG641/642/643 are high performance monolithic video
switches designed for switching wide bandwidth analog and
digital signals. DG641 is a quad SPST, DG642 is a single
SPDT, and DG643 is a dual SPDT function. These devices
have exceptionally low on-resistances (5 W typ—DG642), low
capacitance and high current handling capability.
To achieve TTL compatibility, low channel capacitances and
fast switching times, the DG641/642/643 are built on the
Vishay Siliconix proprietary D/CMOS process. Each switch
conducts equally well in both directions when on, and blocks
up to 14 Vp-p when off. An epitaxial layer prevents latchup.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
Dual-In-Line and SOIC
IN1 1
D1 2
S1 3
V– 4
GND 5
S4 6
D4 7
IN4 8
DG641
Top View
16 IN2
15 D2
14 S2
13 V+
12 GND
11 S3
10 D3
9 IN3
Dual-In-Line and SOIC
S1 1
D1 2
V– 3
GND 4
DG642
Top View
8 IN
7 V+
6 D2
5 S2
TRUTH TABLEĊDG641
Logic
Switch
0 OFF
1 ON
Logic “0” v 0.8 V
Logic “1” w 2.4 V
Document Number: 70058
S-52433—Rev. E, 06-Sep-99
TRUTH TABLEĊDG642
Logic
0
SW1
OFF
SW2
ON
1 ON OFF
Logic “0” v 0.8 V
Logic “1” w 2.4 V
Dual-In-Line and SOIC
IN1
D1
GND
S1
V–
S4
GND
D4
1
2
3
4
5
6
7
8
DG643
Top View
16 IN2
15 D2
14 GND
13 S2
12 V+
11 S3
10 GND
9 D3
TRUTH TABLEĊDG643
Logic
0
SW1, SW2
OFF
SW3, SW4
ON
1 ON
OFF
Logic “0” v 0.8 V
Logic “1” w 2.4 V
www.vishay.com S FaxBack 408-970-5600
4-1
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DG641/642/643
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Supply Current vs. Temperature
6
5
4
I+
3
2
1
0 IGND
–1
–2
I–
–3
–4
–5
–55 –35 –15 5 25 45 65 85 105 125
Temperature (_C)
DG641/643
rDS(on) vs. Drain Voltage
40
V+ = 15 V
V– = –3 V
30
125_C
100 nA
Leakages vs. Temperature
10 nA
1 nA
100 pA
10 pA
1 pA
0.1 pA
–55
–25 0 25 50 75 100 125
Temperature (_C)
DG642
rDS(on) vs. Drain Voltage
20
V+ = 15 V
V– = –3 V
15
125_C
20 25_C
10 25_C
–55_C
–55_C
10 5
0
–3
–1
22
20
18
16
14
12
10
8
6
0
2
1 35 7
VD – Drain Voltage (V)
On Capacitance
9
DG642
DG641/643
468
(VD) – (V–)
10
11
12
Document Number: 70058
S-52433—Rev. E, 06-Sep-99
0
–3
–1
–110
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
1
1 35 7
VD – Drain Voltage (V)
Off Isolation
DG641/643
DG642
10
f – Frequency (MHz)
9 11
100
www.vishay.com S FaxBack 408-970-5600
4-5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for DG643 electronic component. |
| Information | Total 10 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ DG643.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| DG640 | The function is N-CHANNEL ENHANCEMENT MODE MOSFET. DGME |  |
| DG641 | The function is Low On-Resistance Wideband/Video Switches. Vishay Siliconix | |
| DG642 | The function is Low On-Resistance Wideband/Video Switches. Vishay Siliconix | |
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