LH0002 Buffer
LH0002
FEATURES
••High Inpu t Impedance. . . . . . . . . . . . . . . . . . . . . . 400kΩ
••Low Ou tput Imped ance. . . . . . . . . . . . . . . . . . . . . . . . 3Ω
••High Pow e r Ef ficie n cy
••Low Harmonic Distorti on
••Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . DC to 50MHz
••Out pu t Volt age Sw in g that Approach es Su p ply Volta ge
••Pulsed Output Current . . . . . . . . . . . . . . . . . . . . . 400mA
••Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200V/ µs
••Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5V t o ±20V
APPLICATIONS
••Line Driver
••Inst r um ent at ion Shi el d Dri ve r
••High Speed D/A Conve rsion
••Precision Current Source
••V id eo Dri ve r
GENERAL DESCRIPTION
The LH0002 is a high speed unity gain buffer designed to
provide high current drive capab ility at fr eq uenc ies from DC t o
over 50MHz. It is capable of providing a cont inuo us cur rent of
±1 00m A and a peak of ±400mA. It is ideal to integra te with a n
opera tion al amp lifier inside a close loop conf igur ation.
ORDERING INFORMAT ION
Part Package Temperature Range
LH0002H HO8 (TO5-8 Lead) -55oC to +125oC
LH0002CH HO8 (TO5-8 Lead) -40oC to +85oC
LH0002CN N10A (Plastic DIP-10 Pin) -40oC to +85oC
CORPORATION
CONNECTION DIAGRAMS
1
2
3
4
56
7
8
9
10
INPUT
DUAL-IN-LINE
PACKAGE
N10A
OUTPUT
V
1
-
V
1
+
V
2
+
V
2
-
2
E
4
E
3
E
1
E
1
2
3
4
5
6
7
8
HO8A
OUTPUT
INPUT
METAL CAN PACKAGE
V
1
+
V
2
+
3
E
4
E
V
2
-
V
1
-
CALOGIC CORPORATION, 237 W h itney Plac e, F r em o nt , Califo r nia 94 539, Teleph one: 5 10-656-2 900, FAX: 510-6 51 - 10 76
ABSOLUTE M AXIM UM R A T INGS ( Note 2)
If Military/Aerospace specified dev ic es are requir ed, pleas e
contact the Calogic Sales Office f or availability and
specifications.
Supply V o ltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±22V
Power Dissipat ion (Not e 3) . . . . . . . . . . . . . . . . . . . . 600m W
Input Voltage . . . . . . . . . . . . (Equal to Power Supp ly Voltage)
Stor age Temper at ur e Ra nge. . . . . . . . . . . . -65oC t o +150oC
Junction Te m pe r at ure
N Packa ge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150oC
H Packa ge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +175oC
Steady State O utpu t Curr ent. . . . . . . . . . . . . . . . . . . ±100mA
Pulsed Ou tput Current (50ms On /1 sec. Off) . . . . . . ±400mA
Lead Temp e ratu re Sold erin g (10 se cond s)
Metal Can. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300oC
Plasti c. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300oC
ESD Ratin g (Note 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2kV
OPERATING RATINGS (Not e 3)
Temp erat ure Range
LH0002H . . . . . . . . . . . . . . . . . . . . . . . . . -55oC to +125oC
LH0002C . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to +85oC
The rm a l Res ista nce ( Not e 4)
θJA, H Package. . . . . . . . . . . . . . . . . . . . . . . . . . . 125oC/W
θJC, H Package . . . . . . . . . . . . . . . . . . . . . . . . . . . 15oC/W
θJA, N Package. . . . . . . . . . . . . . . . . . . . . . . . . . . 120oC/W
CORPORATION
ELECTRICA L CHARACTERI STIC S (Note 1 )
SYMBOL PARAMETER MIN TYP MAX UNITS CONDITIONS
AVVoltage Gain 0.95 0. 97 RS = 10kΩ, R L = 1.0KΩ, VIN = ±10V
RIN Input Impedance 180 400 kΩRS = 200k Ω, VIN = ±1. 0V, R L = 1.0kΩ,
ROOutput Impedance 6.0 10 ΩVIN = ±1.0V, RL = 50Ω, RS = 10kΩ
VO1 Output V oltage Swing ±10 ±11 V RL = 1.0k Ω, VIN = ±12V
VO2 Output V oltage Swing ±10 ±11 V VS = ±15V, VIN = ±12V, RS = 50Ω, RL = 100Ω, TA = 25oC
VOS DC Output Offset Voltage ±10 ±30 mV RS = 300Ω, RL = 1.0kΩ,
IBDC Input Bias Current ±6.0 ±10 µAR
S = 10kΩ, RL = 1.0kΩ,
HDT Harmonic Distortion 0.1 % VIN = 5.0Vrms, f = 1.0kHz
R/T Rise Time 7.0 12 ns RL = 50Ω, ∆VIN = 100mV
IS+ Positive Supply Current +6.0 +10 mA RS = 10kΩ, R L = 1.0kΩ,
IS- Negative Supply Current -6.0 -10 mA RS = 10kΩ, RL = 1.0kΩ,
Note 1. Specification applies for TA = 25oC with +12V on Pins 1 and 2; -12V on Pins 6 and 7 for the metal can package and +12V on Pins 1 and
2; -12V on Pins 4 an d 5 for the du al -in-l ine pa ckage , u nless othe rwise speci fied. The p ara mete r gua rantee s for LH0 00 2C apply over the
te mpe rature range of 0oC to +85oC while para m ete r s for the L H00 02 are gua ran tee d over the temp era tu re rang e -55 oC to +12 5oC unles s
otherwise specified.
Note 2. Abso lut e M a ximu m Rati ng s i nd icate lim it s b eyon d which da mage to the device ma y oc cur. Operating Ratin gs indi ca te cond itio ns for
which the devices intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions,
see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed.
Note 3. The maximu m power dissipation is a functio n of ma ximu m ju nctio n temperat ure (TJM ax), total thermal resistance (θJA), and ambient
tem pe ratu re (T A) maximu m al lowe d power di s sipat ion at any amb ient is PD = (TJMax - TA)/θJA.
Note 4. For operating at elevated temperatures, the device must be derated based on the thermal resistance θJA an d T JMax. TJ = TA + P DθJA.
Note 5. Human body model, 1.5kΩ in series with 100pF.
LH0002
CALOGIC CORPORATION, 237 W h itney Plac e, F r em o nt , Califo r nia 94 539, Teleph one: 5 10-656-2 900, FAX: 510-6 51 - 10 76
CORPORATION
TYPICAL PERFO RM ANCE CHARACTERI STIC S
TIME (ns)
INPUT AND OUTPUT PULSE (V)
020
NEGATIVE PULSE
6040 80 100
0
-1.0
-2.0
-3.0
-4.0
INPUT
OUTPUT
V
S
= ±12V
R
L
= R
S
= 50Ω
T
A
= 25˚C
120
-5.0
SUPPLY VOLTAGE (±V)
INPUT BIAS CURRENT (
µ
A)
68
INPUT BIAS
CURRENT
1210 14 16
6
5
4
3
2
1
18 204
0
7
8
T
A
= 55˚C
T
A
= 125˚C
T
A
= 25˚C
1.0 2.0 5.0 10.0 20.0 50.0 100
1.0
0.8
0.6
0.4
0.2
0.1 0
-8
-16
-24
-32
-40
PHASE LAG (DEGREES)
FREQUENCY (MHz)
VOLTAGE GAIN
FREQUENCY RESPONSE
V
A
= 1V
rms-IN
V= ±12.0VV
S
= 25˚C
A
T= 50Ω
L
R
1.0
INPUT IMPEDANCE (k
Ω
)
0
-20
-40
-60
-80
-100
PHASE LAG (DEGREES)
0.2 0.5 1 2 5 10
1
10
100
1000
0
FREQUENCY (MHz)
INPUT IMPEDANCE
(MAGNITUDE & PHASE)
L
= 0.3V
IN
V= 50Ω= ±12.0V
S
rms-
RV
= 25˚C
A
T
S
R= 10kΩ
12.0
10.0
8.0
6.0
4.0
2.0
0
SUPPLY VOLTAGE (±V)
SUPPLY CURRENT (±mA)
6.0 9.0
SUPPLY CURRENT
15.012.0
T
A
= 25˚C
LESS THAN ±10%
CHANGE FROM
-55˚C TO 125˚C
TIME (ns)
INPUT AND OUTPUT PULSE (V)
020
POSITIVE PULSE
6040 80 100
5.0
4.0
3.0
2.0
1.0
0
INPUT
OUTPUT
V
S
= ±12V
R
L
= R
S
= 50Ω
T
A
= 25˚C
LH0002
CALOGIC CORPORATION, 237 W h itney Plac e, F r em o nt , Califo r nia 94 539, Teleph one: 5 10-656-2 900, FAX: 510-6 51 - 10 76
CORPORATION
TYPIC AL APPLI CA T IONS
FIGURE 2. Invert ing Buf fer Ampl ifie r with Cur ren t Limit
LH0002
OP-AMP
+15V
0.1
µ
F
V
IN
_
-15V
0.1
µ
F
100
Ω
3
1
2
8
4
5
-15V
0.1
µ
F
0.1
µ
F
+15V
V
OUT
R
F
R
IN
|| R
F
R
IN
V
OUT
V
IN
R
F
R
IN
= -
+
R
SC
FIGURE 1. Coaxial Cable Drive Circuit
INPUT
2
LH0002
3
45
8
1
0.1
µ
F
V
-
R
LIM
0.001
µ
F
43
Ω
V+
0.001
µ
F
R
LIM
R
L
50
Ω
RG 58
R
LIM
= 100
Ω
, 1W
0.1
µ
F
LH0002
CALOGIC CORPORATION, 237 W h itney Plac e, F r em o nt , Califo r nia 94 539, Teleph one: 5 10-656-2 900, FAX: 510-6 51 - 10 76
TYPIC AL APPLI CA T IONS ( Cont inue d)
CORPORATION
FIGURE 4. Non-Inver tin g Buffer Ampl ifie r
LH0002
+15V
0.1
µ
F
V
IN
-15V
0.1
µ
F
100
Ω
3
12
8
45
V
OUT
R
LOAD
-15V
0.1
µ
F
0.1
µ
F
+15V
OP-AMP
+
_
FIGURE 3. Non-Inverting Buffer Ampl ifier with Ga in
LH0002
OP-AMP
+15V
0.1
µ
F
V
IN
+
_
-15V
0.1
µ
F
100
Ω
3
12
8
45
V
OUT
R
LOAD
-15V
0.1
µ
F
0.1
µ
F
+15V
R2
R1 V
OUT
= V
IN
1 +
(
)
R2
R1
LH0002
CALOGIC CORPORATION, 237 W h itney Plac e, F r em o nt , Califo r nia 94 539, Teleph one: 5 10-656-2 900, FAX: 510-6 51 - 10 76
CORPORATION
FIGURE 6. Curren t Lim it Usin g Curr ent Source
3
LH0002
R
LIM
10
Ω
Q2
15V
2
18
5
4
OUTPUT
0.01
µ
F
6.2k
Ω
Q3
Q4
-15V
R
LIM
10
Ω
3
Q
Q
12
4
, Q
, Q
= 2N29 05
= 2N2219
FIGURE 5. LH0002 Using Resistor Curren t Limiting
2
LH0002
3
45
1
0.1
µ
F
V-
R
LIM
V+
0.01
µ
F
R
LIM
0.1
µ
F
0.01
µ
F
8V
OUT
V
IN
TYPIC AL APPLI CA T IONS ( Cont inue d)
LH0002
CALOGIC CORPORATION, 237 W h itney Plac e, F r em o nt , Califo r nia 94 539, Teleph one: 5 10-656-2 900, FAX: 510-6 51 - 10 76