clock driver. MH0012C Datasheet

MH0012C driver. Datasheet pdf. Equivalent

Part MH0012C
Description high speed MOS clock driver
Feature CJ oo~ Memory/Clock Drivers :t :E "N oo~ :t :E MH0012/MH0012C high speed MOS clock driver ge.
Manufacture National Semiconductor
Datasheet
Download MH0012C Datasheet

CJ oo~ Memory/Clock Drivers :t :E "N oo~ :t :E MH0012 MH0012C Datasheet
Recommendation Recommendation Datasheet MH0012C Datasheet




MH0012C
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MH0012/MH0012C high speed MOS clock driver
general description
The MH0012/MH0012C is a high performance
clock driver that is designed to be driven by the
DM7830/DM8830 or other line drivers or buffers
with high output current capability. It will pro-
vide a fixed width pulse suitable for driving MOS
shift registers and other clocked MOS devices.
features
• High output voltage swings-12 to 30 volts
• High output current drive capability-lOOO mA
peak
• High repetition rate-lO MHz at 18 volts into
100 pF
• Low standby power-less than 30 mW
schematic and connection diagrams
y'
•9
COMP 8
INPUT 1 1
AI
26.
GNO 5
tNPUT2 3
COMP ..
""'
'""
11 10UT,UT
...-14.....-11-<>"
,2
y-
12-lead TO·S Package
TOP VIEW
Order Number MH0012G
or MH0012CG
See Package 6
typical application (ac test circuit)
timing diagram
v- ~DV
3·22



MH0012C
absolute maximum ratings
v~ Supply Voltage Differential (Pm lor 2 to
Pm 5~
V+ Supply Voltage Differential (Pm 8 or 9
to Pm 1 or 2)
Input Current (Pm 3 or 7l
Peak Output Current
-40V
30V
±75 rnA
±lODO rnA
dc electrical characteristics (Note 1)
Maximum Output Load-See Figure 2
Power DISSipation-See Figure 1
Storage Temperature
Operatmg Temperature MHOO12
MHOD12C
Lead Temperdture (Soldering. 10 sec)
15W
-65"C to +150°C
-55"C to +12SoC
O"C to +8S"C
300°C
PARAMETER
Logic "1" Input Voltage
(Pms 7 and 3)
Logic "0" Input Voltage
Wms 7 and 3)
LOfjlc "1" Output Voltage
Logic "0" Output Voltage
IDe (V- Supply)
CONDITIONS
v+ - V- ~ 20V, VOUT::;V- , 2V
V+-V-=20V,V OUT ?:'V+ -15V
Vf _ V- '" 20V, lOUT '" lmA,
VIN "'20V
V' - V- '" 20V, lOUT'" - lmA,
V 1N =04V
V+-V-=20V,V 1N "'20V
ac electrical characteristics
MIN
04
vt _ 1 5
TVP
10
06
V- t 10
V+ - 07
34
MAX
20
V- + 20
60
UNITS
V
V
V
V
mA
PARAMETER
Turn-On Delay (tON)
Rise Time it,)
Turn-Off Delay (toFFI
Fall Time {til
CONDITIONS (Note 3)
~V-=20V.Vcc =50V
CL "200 pF. f =- 1 0 MHz
TA '= 25"C
MIN
TVP
10
5
35
35
MAX
15
10
50
45
UNITS
ns
ns
ns
ns
Note 1: Characteristics apply for CirCUit of Figure 1. Min and max limits apply from -55°C to +125° C for the MH0012 and
from O°C to +85°C for the MH0012C. TYPical values are for TA = +25°C.
Note 2: Due to the very fast rise and fall times, and the high currents Involved, extremely short connections and good by
passing techniques are required.
Note 3: All conditIOns apply for each parameter.
Power Dissipation
1.5
"\
"-~ 1.0
'~" I"\.
"-.5
Maximum Output Load
vs Voltage Swing vs Rise Times
C=~
~ 30
, \ 1L IV· - V-I
\ ~.
-{-- 1'.... ..... ......1. ..~(C>>
;! 20
-;;
,> I--
~~
~" "Q
"$ 'to
./Q11r -- ........
i 10
0 25 50 75 100 125 150 175
AM81ENT TEMPERATURE lOCI
Figure 1.
0 400 800 1200 1600
MAXIMUM OUTPUT LUAU (pfl
Figure 2.
Rise and Fall Times vs
load Capacitance
40
~ 35
:; 30
'": 25 I-V· - V- = 20V
..;;!
~
20
I - TA =25"C
"
-t--~ 15
i=
~ 10
"' 5 :-
:-
0
200 400 600 800 1000
LOAO CAPACITANCE, CL I.FI
applications information
Power Dissipation ConSiderations
The power diSSipated by the MHOOt2 may be
diVided mto three areas of operation"" ON, OFF
and swltchmg, The OFF power IS approximately
30 mW and IS diSSipated by R2 when Pin 3 IS In
the logiC "1" state The OFF power IS negllble and
will be Ignored In the subsequent diSCUSSion, The
ON power IS diSSipated primarily by 0 3 and Rg
and IS given by:
"r {V+ - v-f
PON == I
iI IN
+---1
R9
DC
111
Where
ON Time
DC'" Duty Cycle == ON Time & OFF Time
liN
IS
gIVen
by
VIN -
--R
-V,B-E3-
and equation (1)
becomes
PON = [(VIN - ~B,E3IIV-1 + IV·R~ V-1 2 ] DC 121
For V tN = 2 5V, V SE3 = 0 7V. V+ "'OV. V- = -20V,
and DC = 20%, PON == 200 mW
The tranSient power mcurred dunng SWitching IS
given by'
PAC =- (v+ - y- 12 CLf
131
For V+ ;;: OV, V- == -20V, CL ;;: 200 pF, and
f '" 5.0 MHz, PAC "" 400 mW,
The total power is given by
PT "" PAC + PON
PT ::;:; PMAX
141
For the above example, PT = 600 mW.
s:
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3-23





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