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PDF DG190 Data sheet ( Hoja de datos )
| Número de pieza | DG190 | |
| Descripción | High-Speed Drivers with Dual SPDT JFET Switches | |
| Fabricantes | Vishay Siliconix | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de DG190 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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DG189/190/191
Vishay Siliconix
High-Speed Drivers with Dual SPDT JFET Switches
FEATURES
D Constant On-Resistance Over
Entire Analog Range
D Low Leakage
D Low Crosstalk
D Rad Hardness
BENEFITS
D Low Distortion
D Eliminates Large Signal Errors
D High Precision
D High Bandwidth Capability
D Fault Protection
APPLICATIONS
D Audio Switching
D Video Switching
D Sample/Hold
D Guidance and Control Systems
D Aerospace
DESCRIPTION
The DG189/190/191 are precision dual single-pole,
double-throw (SPDT) analog switches designed to provide
accurate switching of video and audio signals. This series is
ideally suited for applications requiring a constant
on-resistance over the entire analog range.
The major difference in the devices is the on-resistance
(DG189—10 W, DG190—30 W, DG191—75 W). Reduced
errors are achieved through low leakage current (ID(on)
< 2 nA). Applications which benefit from the flat JFET
on-resistance include audio switching, video switching, and
data acquisition.
To achieve fast and accurate switch performance, each device
comprises four n-channel JFET transistors and a TTL
compatible bipolar driver. The driver is designed to achieve
break-before-make switching action, eliminating the
inadvertent shorting between channels and the crosstalk
which would result. In the on state, each switch conducts
current equally well in either direction. In the off condition, the
switches will block up to 20 V peak-to-peak, with feedthrough
of less than –60 dB at 10 MHz.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
Dual-In-Line
D1 1
NC 2
D3 3
S3 4
S4 5
D4 6
NC 7
D2 8
16 S1
15 IN1
14 V–
13 VR
12 VL
11 V+
10 IN2
9 S2
Top View
Flat Package
S4 1 14 S3
D4 2 13 D3
D2 3 12 D1
S2 4 11 S1
IN2 5 10 IN1
V+ 6 9 V–*
VL 7 8 VR
Top View
Refer to JAN38510 Information, Military Section
*Common to Substrate and Case
Document Number: 70034
S-52880—Rev. C, 28-Apr-97
TRUTH TABLE
Logic
0
1
SW1, SW2
OFF
ON
SW3, SW4
ON
OFF
Logic “0” v 0.8 V
Logic “1” w 2.4 V
www.vishay.com S FaxBack 408-970-5600
4-1
1 page  
DG189/190/191
Vishay Siliconix
SPECIFICATIONSa FOR DG191
Parameter
Analog Switch
Symbol
Test Conditions
Unless Specified
V+ = 15 V, V– = –15 V, VL = 5 V
VR = 0 V, VIN = 0.8 V or 2 Vf
Analog Signal Rangee
Drain-Source
On-Resistance
Source Off
Leakage Current
Drain Off
Leakage Current
VANALOG
rDS(on)
IS(off)
ID(off)
IS = –10 mA, VD = –7.5 V
VS = "10 V, VD = #10 V
V+ = 10 V, V– = –20 V
VS = "10 V, VD = #10 V
VS = "10 V, VD = #10 V
V+ = 10 V, V– = –20 V
VS = "10 V, VD = #10 V
Channel On
Leakage Current
ID(on)
VD = VS = "10 V
Digital Input
Input Current with
Input Voltage High
Input Current with
Input Voltage Low
IINH
IINL
VIN = 5 V
VIN = 0 V
Dynamic Characteristics
Turn-On Time
Turn-Off Time
Source-Off Capacitance
Drain-Off Capacitance
Channel-On Capacitance
Off Isolation
Positive Supply Current
Negative Supply Current
Logic Supply Current
Reference Supply Current
ton
toff
CS(off)
CD(off)
CD(on)
OIRR
I+
I–
IL
IR
See Switching Time Test Circuit
VS = –5 V, ID = 0
f = 1 MHz
VD = –5 V, IS = 0
VD = VS = 0 V
f = 1 MHz, RL = 75 W
VIN = 0 V, or 5 V
Tempb Typc
Full
Room
Full
Room
Hot
Room
Hot
Room
Hot
Room
Hot
Room
Hot
35
0.05
0.07
0.04
0.05
–0.03
Room
Hot
Full
<0.01
–30
Room
Room
Room
Room
Room
Room
Room
Room
Room
Room
120
100
9
6
14
>50
0.6
–2.7
3.1
–1
A Suffix
–55 to 125_C
Mind Maxd
B Suffix
–25 to 85_C
Mind Maxd Unit
–10 15 –10 15 V
75
150
100
150
W
15
100 100
15
100 100
1
100
5
100
nA
15
100 100
–2
–200
–10
–200
10 10
20 20
mA
–250
–250
250 300
ns
130 150
pF
dB
1.5 1.5
–5 –5
mA
4.5 4.5
–2 –2
Notes:
a. Refer to PROCESS OPTION FLOWCHART.
b. Room = 25_C, Full = as determined by the operating temperature suffix.
c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
d. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.
e. Guaranteed by design, not subject to production test.
f. VIN = input voltage to perform proper function.
Document Number: 70034
S-52880—Rev. C, 28-Apr-97
www.vishay.com S FaxBack 408-970-5600
4-5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet DG190.PDF ] | |
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