3N172 / 3N173
CORPORATION
SMALL-SIGNAL ELECTRICAL CHARACTERISTICS
T
A
= 25
o
C and Bulk (substrate) Lead Connected to Source
SYMBOL
| y
fs
|
| y
os
|
C
iss
C
rss
C
oss
PARAMETER
Magnitude of Small-Signal, Common-Source,
Short-Circuit, Forward Transadmittance*
Magnitude of Small-Signal, Common-Source,
Short-Circuit, Output Admittance*
Small-Signal, Common-Source, Short-Circuit,
Input Capacitance*
Small-Signal, Common-Source, Short-Circuit,
Reverse Transfer Capacitance*
Small-Signal, Common-Source, Short-Circuit,
Output Capacitance*
3N172
3N173
MIN MAX MIN MAX
1500 4000 1000 4000
250
3.5
1.0
3.0
250
3.5
1.0
3.0
UNITS
µS
µS
pF
pF
pF
TEST CONDITIONS
V
DS
= -15V, I
D
= -10mA, f = 1kHz
V
DS
= -15V, I
D
= -10mA, f = 1kHz
V
DS
= -15V, I
D
= -10mA, f = 1MHz
V
DS
= -15V, I
D
= -10mA, f = 1MHz
V
DS
= -15V, I
D
= -10mA, f = 1MHz
NOISE CHARACTERISTICS
SYMBOL
NF
PARAMETER
Common-Source Spot Noise Figure
TYPICAL
1.0
UNITS
dB
TEST CONDITIONS
V
DS
= -15V, I
D
= -1mA, f = 1kHz, R
G
= 1MΩ
SWITCHING CHARACTERISTICS
T
A
= 25
o
C Bulk (substrate) Lead Connected to Source
SYMBOL
t
d (on)
t
r
t
off
PARAMETER
Turn-On Delay Time*
Rise Time*
Turn-Off Delay Time*
3N172
MIN
MAX
12
24
50
3N173
MIN
MAX
12
24
50
ns
V
DD
= -15V, I
D (on)
= -10mA
R
G
= R
L
= 1.4kΩ
See Test Circuit Below
UNITS
TEST CONDITIONS
*Registered JEDEC Data
SWITCHING TIME DETAIL
V
DD
R
L
MEASUREMENTS ON SAMPLING OSCILLOSCOPE WITH
t
rise
< 0.2ns
C
in
< 2.0pF
R
in
> 10MΩ
INPUT PULSE
t
rise
< 2ns
PULSE WIDTH > 200ns
PULSE
WIDTH
10%
V
IN
50%
-V
IN
t
off
-1V
10%
V
OUT
90%
90%
-15V
0210
1.0
-0.1
-0.5
-1.0
1000
R
G
V
IN
50Ω
V
OUT
D.U.T.
0220
SWITCHING TIMES vs. ON-STATE
DRAIN CURRENT
-0V
50%
90%
500
V
DD
= 15V
SWITCHING TIS - nSEC
R
G
= R
L
= 1.4K
100
t
r
t
4(on)
50
t
off
t
rise
10
5.0
t
d(on)
-5.0
-10
ON-STATE DRAIN CURRENT - (I
D(on)
) - mA
0230
CALOGIC [ CALOGIC, LLC ]
