High-Speed Analog
N-Channel/Enhancement-Mode
DMOS FETS
SD400 / SD402
FEATURES
DESCRIPTION
CORPORATION
•
Fast switching . . . . . . . . . . . . . . . . . . . . . . . . . . . t
on
<1ns
•
Low capacitance . . . . . . . . . . . . . . . . . . . C
rss
0.3 pF (typ)
......... ....
•
Low threshold .Compatible. Input. . . . . . . . . . <1.5V max
CMOS and TTL
•
•
Switch Drivers
•
Video Switches
•
Active Pullups
•
VHF/UHF Amplifiers
APPLICATIONS
The SD400 and SD402 are N-Channel Enhancement Mode
devices processed utilizing Calogic’s proprietary high speed,
low capacitance lateral DMOS technology. These devices are
excellent switch drivers where low threshold offers the
designer the advantage of CMOS and TTL compatibility with
ultra high switching speeds.
ORDERING INFORMATION
Part
SD400BD
SD402BD
XSD400
XSD402
Package
Plastic TO-92
Plastic TO-92
Sorted Chips in Carriers
Sorted Chips in Carriers
Temperature Range
-55
o
C to +125
o
C
-55
o
C to +125
o
C
-55
o
C to +125
o
C
-55
o
C to +125
o
C
PIN CONFIGURATION
SCHEMATIC DIAGRAM
DRAIN
(2)
TO-92
GATE
(3)
SOURCE
(1)
CD1-1
D
S G
7-74
SD400 / SD402
CORPORATION
ABSOLUTE MAXIMUM RATINGS
(T
C
= +25
o
C unless otherwise noted)
V
DS
V
GS
V
DG
Drain-Source Voltage
SD400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +30V
SD402 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +15V
Gate-Source Voltage . . . . . . . . . . . . . . . . . . . . . -0.3 V
+20 V
Gate-Drain Voltage . . . . . . . . . . . . . . . . . . . . . . -0.3 V
+20 V
V
SD
I
D
Source-Drain Voltage . . . . . . . . . . . . . . . . . . . . -0.3 V
Continuous Drain Current . . . . . . . . . . . . . . . . . 50 mA
Power Dissipation (at or below T
C
= +25
o
C) . . 300mW
Linear Derating Factor. . . . . . . . . . . . . . . . 3.0 mW/
o
C
Operating Storage and
Junction Temperature Range . . . . . . -55
o
C to +125
o
C
ELECTRICAL CHARACTERISTICS
(T
A
= +25
o
C unless otherwise noted)
SD400
SYMBOL
STATIC
BV
DSS
I
D(OFF)
I
GSS
I
D(ON)
V
GS(th)
V
DS(ON)
r
DS(ON)
V
DS(ON)
r
DS(ON)
DYNAMIC
g
fs
c
iss
c
oss
c
rss
t
d(ON)
t
r
t
(OFF)
Common-Source Forward
Transconductance
Common-Source Input Capacitance
Common-Source Output Capacitance
Common-Source Reverse Transfer
Capacitance
Turn ON Delay Time
Rise Time
Turn OFF Time
8.0
12
4.0
1.8
0.3
0.7
0.8
12
5.0
2.5
0.5
1.0
1.0
8.0
12
4.0
1.8
0.3
0.7
0.8
12
5.0
2.5
0.5
1.0
1.0
ns
V
DD
= 10 V, R
L
= 680
V
G(ON)
= 10 V, R
G
= 51
C
L
= 1.5 pF
pF
V
DS
= 10 V, V
GS
= 0
f = 1 MHz
mS
I
D
= 20 mA, V
DS
= 10 V
f = 1 KHz Pulse Test
Drain-Source Breakdown Voltage
Drain-Source OFF Leakage Current
Gate-Source Leakage Current
Drain-Source ON Current
Gate-Source Threshold Voltage
Drain-Source ON Voltage
Drain-Source ON Resistance
Drain-Source ON Voltage
Drain-Source ON Resistance
50
0.7
150
150
60
60
100
1.5
250
250
80
80
30
35
1.0
1.0
50
0.7
150
150
60
60
100
1.5
250
250
80
80
15
25
1.0
1.0
V
µA
µA
mA
V
mV
I
D
= 1 mA, V
GS
= 2.4 V
ohms
mV
I
D
= 1 mA, V
GS
= 4.5 V
ohms
I
D
= 1.0µA, V
GS
= 0
V
DS
= 15 V, V
GS
= 0
V
GS
= 20 V, V
DS
= 0
V
DS
= 10 V, V
GS
= 10 V
Pulse Test
I
D
= 1.0
µA,
V
DS
= V
GS
CHARACTERISTICS
MIN
TYP
MAX
MIN
TYP
MAX
SD402
UNIT
TEST CONDITIONS
7-75
