LH0002 Buffer
CORPORATION
LH0002
FEATURES
GENERAL DESCRIPTION
The LH0002 is a high speed unity gain buffer designed to
provide high current drive capability at frequencies from DC to
over 50MHz. It is capable of providing a continuous current of
±100mA
and a peak of
±400mA.
It is ideal to integrate with an
operational amplifier inside a close loop configuration.
ORDERING INFORMATION
Part
LH0002H
LH0002CH
LH0002CN
Package
Temperature Range
HO8 (TO5-8 Lead)
-55
o
C to +125
o
C
HO8 (TO5-8 Lead)
-40
o
C to +85
o
C
N10A (Plastic DIP-10 Pin) -40
o
C to +85
o
C
•
High Input Impedance . . . . . . . . . . . . . . . . . . . . . . 400kΩ
•
Low Output Impedance. . . . . . . . . . . . . . . . . . . . . . . . 3Ω
Power Efficiency
•
HighHarmonic Distortion
Low
•
•
Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . DC to 50MHz
Swing
•
Output VoltageCurrentthat. Approaches. Supply .Voltage
Pulsed Output
. . . . . . . . . . . . . . . . . . 400mA
•
•
Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200V/µs
•
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±5V
to
±20V
•
Line Driver
•
Instrumentation Shield Driver
•
High Speed D/A Conversion
•
Precision Current Source
•
Video Driver
CONNECTION DIAGRAMS
APPLICATIONS
METAL CAN PACKAGE
INPUT
8
V
1
+
1
7
V
1
-
DUAL-IN-LINE
PACKAGE
V
2
+
V
1
+
V
2
-
1
2
3
4
5
10
9
8
7
6
E
1
E
3
OUTPUT
E
4
E
2
V
2
+
2
6
INPUT
V
1
-
E
3
3
4
OUTPUT
HO8A
5
E
4
V
2
-
N10A
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
LH0002
CORPORATION
ABSOLUTE MAXIMUM RATINGS
(Note 2)
If Military/Aerospace specified devices are required, please
contact the Calogic Sales Office for availability and
specifications.
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±22V
Power Dissipation (Note 3) . . . . . . . . . . . . . . . . . . . . 600mW
Input Voltage . . . . . . . . . . . . (Equal to Power Supply Voltage)
Storage Temperature Range . . . . . . . . . . . . -65
o
C to +150
o
C
Junction Temperature
N Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150
o
C
H Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +175
o
C
Steady State Output Current . . . . . . . . . . . . . . . . . . .
±100mA
Pulsed Output Current (50ms On/1 sec. Off) . . . . . .
±400mA
Lead Temperature Soldering (10 seconds)
Metal Can. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
o
C
Plastic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
o
C
ESD Rating (Note 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2kV
OPERATING RATINGS
(Note 3)
Temperature Range
LH0002H . . . . . . . . . . . . . . . . . . . . . . . . . -55
o
C to +125
o
C
LH0002C . . . . . . . . . . . . . . . . . . . . . . . . . . -40
o
C to +85
o
C
Thermal Resistance (Note 4)
θ
JA
, H Package. . . . . . . . . . . . . . . . . . . . . . . . . . . 125
o
C/W
θ
JC
, H Package . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
o
C/W
θ
JA
, N Package. . . . . . . . . . . . . . . . . . . . . . . . . . . 120
o
C/W
ELECTRICAL CHARACTERISTICS
(Note 1)
SYMBOL
A
V
R
IN
R
O
V
O1
V
O2
V
OS
I
B
HDT
R/T
I
S+
I
S-
PARAMETER
Voltage Gain
Input Impedance
Output Impedance
Output Voltage Swing
Output Voltage Swing
DC Output Offset Voltage
DC Input Bias Current
Harmonic Distortion
Rise Time
Positive Supply Current
Negative Supply Current
±10
±10
MIN
0.95
180
TYP
0.97
400
6.0
±11
±11
±10
±6.0
0.1
7.0
+6.0
-6.0
12
+10
-10
±30
±10
10
kΩ
Ω
V
V
mV
µA
%
ns
mA
mA
MAX
UNITS
CONDITIONS
R
S
= 10kΩ, R
L
= 1.0KΩ, V
IN
=
±10V
R
S
= 200kΩ, V
IN
=
±1.0V,
R
L
= 1.0kΩ,
V
IN
=
±1.0V,
R
L
= 50Ω, R
S
= 10kΩ
R
L
= 1.0kΩ, V
IN
=
±12V
V
S
=
±15V,
V
IN
=
±12V,
R
S
= 50Ω, R
L
= 100Ω, T
A
= 25
o
C
R
S
= 300Ω, R
L
= 1.0kΩ,
R
S
= 10kΩ, R
L
= 1.0kΩ,
V
IN
= 5.0Vrms, f = 1.0kHz
R
L
= 50Ω,
∆V
IN
= 100mV
R
S
= 10kΩ, R
L
= 1.0kΩ,
R
S
= 10kΩ, R
L
= 1.0kΩ,
Note 1.
Specification applies for T
A
= 25
o
C 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 and 5 for the dual-in-line package, unless otherwise specified. The parameter guarantees for LH0002C apply over the
temperature range of 0
o
C to +85
o
C while parameters for the LH0002 are guaranteed over the temperature range -55
o
C to +125
o
C unless
otherwise specified.
Note 2.
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions 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 maximum power dissipation is a function of maximum junction temperature (T
J
Max), total thermal resistance (θ
JA
), and ambient
temperature (T
A
) maximum allowed power dissipation at any ambient is P
D
= (T
J
Max - T
A
)/θ
JA
.
Note 4.
For operating at elevated temperatures, the device must be derated based on the thermal resistance
θ
JA
and T
J
Max. T
J
= T
A
+ P
D
θ
JA
.
Note 5.
Human body model, 1.5kΩ in series with 100pF.
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
LH0002
CORPORATION
TYPICAL PERFORMANCE CHARACTERISTICS
INPUT IMPEDANCE
(MAGNITUDE & PHASE)
-40
INPUT IMPEDANCE (kΩ)
FREQUENCY RESPONSE
1.0
A
V
V
IN
= 1V
rms-
R
L
= 50Ω
V
S
= ±12.0V T
A
= 25˚C
V
IN
= 0.3V
rms-
R
L
= 50Ω V
S
= ±12.0V
1000
T
A
= 25˚C
100
R
S
= 10kΩ
-100
PHASE LAG (DEGREES)
0.8
VOLTAGE GAIN
-32
PHASE LAG (DEGREES)
-80
0.6
-24
-60
0.4
-16
10
-40
0.2
-8
1
-20
0.1
1.0
2.0
5.0
10.0 20.0 50.0
0
100
0
1.0 0.2
0.5
1
2
5
0
10
FREQUENCY (MHz)
FREQUENCY (MHz)
SUPPLY CURRENT
12.0
SUPPLY CURRENT (±mA)
INPUT AND OUTPUT PULSE (V)
POSITIVE PULSE
V
S
= ±12V
R
L
= R
S
= 50Ω
T
A
= 25˚C
INPUT
4.0
3.0
OUTPUT
2.0
1.0
0
0
20
40
60
80 100
T
A
= 25˚C
LESS THAN ±10%
10.0 CHANGE FROM
-55˚C TO 125˚C
8.0
6.0
4.0
2.0
0
6.0
5.0
9.0
12.0
15.0
SUPPLY VOLTAGE (±V)
TIME (ns)
NEGATIVE PULSE
INPUT AND OUTPUT PULSE (V)
INPUT BIAS CURRENT (µA)
INPUT BIAS
CURRENT
8
7
6
5
4
3
2
1
0
4
6
8
10
12
14
16
18
20
T
A
= 125˚C
T
A
= 25˚C
T
A
= 55˚C
V
S
= ±12V
R
L
= R
S
= 50Ω
T
A
= 25˚C
0
OUTPUT
-1.0
INPUT
-2.0
-3.0
-4.0
-5.0
0
20
40
60
80 100 120
TIME (ns)
SUPPLY VOLTAGE (±V)
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
LH0002
CORPORATION
TYPICAL APPLICATIONS
FIGURE 1. Coaxial Cable Drive Circuit
V+
0.1µF
R
LIM
= 100Ω, 1W
R
LIM
0.001µF
2
1
INPUT
3
LH0002
5
4
R
LIM
0.1µF
8
43Ω
0.001µF
RG 58
R
L
50Ω
V-
FIGURE 2. Inverting Buffer Amplifier with Current Limit
+15V
R
F
0.1µF
+15V
0.1µF
1
R
IN
V
IN
_
100Ω
OP-AMP
+
3
2
8
R
SC
LH0002
5
V
OUT
0.1µF
R
IN
|| R
F
4
0.1µF
V
OUT
R
=-
F
V
IN
R
IN
-15V
-15V
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
LH0002
CORPORATION
TYPICAL APPLICATIONS
(Continued)
FIGURE 3. Non-Inverting Buffer Amplifier with Gain
+15V
0.1µF
1
V
IN
+
100Ω
OP-AMP
_
5
0.1µF
+15V
0.1µF
2
3
8
LH0002
V
OUT
4
0.1µF
R
LOAD
-15V
R2
-15V
R1
V
OUT
= V
IN
1 + R2
R1
(
)
FIGURE 4. Non-Inverting Buffer Amplifier
+15V
0.1µF
+15V
0.1µF
1
V
IN
+
100Ω
OP-AMP
_
3
2
8
LH0002
5
V
OUT
0.1µF
4
0.1µF
R
LOAD
-15V
-15V
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
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