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Part Number LH0002

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LH0002 Buffer
LH0002
FEATURES
·
·
High Input Impedance . . . . . . . . . . . . . . . . . . . . . . 400k
·
·
Low Output Impedance. . . . . . . . . . . . . . . . . . . . . . . . 3
·
·
High Power Efficiency
·
·
Low Harmonic Distortion
·
·
Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . DC to 50MHz
·
·
Output Voltage Swing that Approaches Supply Voltage
·
·
Pulsed Output Current . . . . . . . . . . . . . . . . . . . . . 400mA
·
·
Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200V/
µ
s
·
·
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
5V to
±
20V
APPLICATIONS
·
·
Line Driver
·
·
Instrumentation Shield Driver
·
·
High Speed D/A Conversion
·
·
Precision Current Source
·
·
Video Driver
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
Package
Temperature Range
LH0002H
HO8 (TO5-8 Lead)
-55
o
C to +125
o
C
LH0002CH
HO8 (TO5-8 Lead)
-40
o
C to +85
o
C
LH0002CN
N10A (Plastic DIP-10 Pin) -40
o
C to +85
o
C
CORPORATION
CONNECTION DIAGRAMS
1
2
3
4
5
6
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 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
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)
JA
, H Package. . . . . . . . . . . . . . . . . . . . . . . . . . . 125
o
C/W
JC
, H Package . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
o
C/W
JA
, N Package. . . . . . . . . . . . . . . . . . . . . . . . . . . 120
o
C/W
CORPORATION
ELECTRICAL CHARACTERISTICS (Note 1)
SYMBOL
PARAMETER
MIN
TYP
MAX
UNITS
CONDITIONS
A
V
Voltage Gain
0.95
0.97
R
S
= 10k
, R
L
= 1.0K
, V
IN
=
±
10V
R
IN
Input Impedance
180
400
k
R
S
= 200k
, V
IN
=
±
1.0V, R
L
= 1.0k
,
R
O
Output Impedance
6.0
10
V
IN
=
±
1.0V, R
L
= 50
, R
S
= 10k
V
O1
Output Voltage Swing
±
10
±
11
V
R
L
= 1.0k
, V
IN
=
±
12V
V
O2
Output Voltage Swing
±
10
±
11
V
V
S
=
±
15V, V
IN
=
±
12V, R
S
= 50
, R
L
= 100
, T
A
= 25
o
C
V
OS
DC Output Offset Voltage
±
10
±
30
mV
R
S
= 300
, R
L
= 1.0k
,
I
B
DC Input Bias Current
±
6.0
±
10
µ
A
R
S
= 10k
, R
L
= 1.0k
,
HDT
Harmonic Distortion
0.1
%
V
IN
= 5.0Vrms, f = 1.0kHz
R/T
Rise Time
7.0
12
ns
R
L
= 50
,
V
IN
= 100mV
I
S+
Positive Supply Current
+6.0
+10
mA
R
S
= 10k
, R
L
= 1.0k
,
I
S-
Negative Supply Current
-6.0
-10
mA
R
S
= 10k
, R
L
= 1.0k
,
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 (
JA
), and ambient
temperature (T
A
) maximum allowed power dissipation at any ambient is P
D
= (T
J
Max - T
A
)/
JA
.
Note 4. For operating at elevated temperatures, the device must be derated based on the thermal resistance
JA
and T
J
Max. T
J
= T
A
+ P
D
JA
.
Note 5. Human body model, 1.5k
in series with 100pF.
LH0002
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
CORPORATION
TYPICAL PERFORMANCE CHARACTERISTICS
TIME (ns)
I
N
PU
T
AND
O
U
T
P
U
T
PULSE
(V)
0
20
NEGATIVE PULSE
60
40
80 100
0
-1.0
-2.0
-3.0
-4.0
INPUT
OUTPUT
V
S
= ±12V
R
L
= R
S
= 50
T
A
= 25°C
120
-5.0
SUPPLY VOLTAGE (±V)
I
N
PU
T

BI
AS
C
U
R
R
E
N
T
(
µ
A)
6
8
INPUT BIAS
CURRENT
12
10
14
16
6
5
4
3
2
1
18
20
4
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)
VO
LT
AGE
GAI
N
FREQUENCY RESPONSE
V
A
= 1V
rms-
IN
V
= ±12.0V
V
S
= 25°C
A
T
= 50
L
R
1.0
INPUT IM
PEDANCE (k
)
0
-20
-40
-60
-80
-100
PH
ASE
LAG
(D
EGREE
S
)
0.2
0.5
1
2
5
10
1
10
100
1000
0
FREQUENCY (MHz)
INPUT IMPEDANCE
(MAGNITUDE & PHASE)
L
= 0.3V
IN
V
= 50
= ±12.0V
S
rms-
R
V
= 25°C
A
T
S
R = 10k
12.0
10.0
8.0
6.0
4.0
2.0
0
SUPPLY VOLTAGE (±V)
SUPPLY C
U
RR
ENT

(±m
A
)
6.0
9.0
SUPPLY CURRENT
15.0
12.0
T
A
= 25°C
LESS THAN ±10%
CHANGE FROM
-55°C TO 125°C
TIME (ns)
I
N
PU
T
AND
O
U
T
P
U
T
PULSE
(V)
0
20
POSITIVE PULSE
60
40
80 100
5.0
4.0
3.0
2.0
1.0
0
INPUT
OUTPUT
V
S
= ±12V
R
L
= R
S
= 50
T
A
= 25°C
LH0002
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
CORPORATION
TYPICAL APPLICATIONS
FIGURE 2. Inverting Buffer Amplifier with Current Limit
LH0002
OP-AMP
+15V
0.1
µ
F
V
IN
_
-15V
0.1
µ
F
100
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
4
5
8
1
0.1
µ
F
V-
R
LIM
0.001
µ
F
43
V+
0.001
µ
F
R
LIM
R
L
50
RG 58
R
LIM
= 100
, 1W
0.1
µ
F
LH0002
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
TYPICAL APPLICATIONS (Continued)
CORPORATION
FIGURE 4. Non-Inverting Buffer Amplifier
LH0002
+15V
0.1
µ
F
V
IN
-15V
0.1
µ
F
100
3
1
2
8
4
5
V
OUT
R
LOAD
-15V
0.1
µ
F
0.1
µ
F
+15V
OP-AMP
+
_
FIGURE 3. Non-Inverting Buffer Amplifier with Gain
LH0002
OP-AMP
+15V
0.1
µ
F
V
IN
+
_
-15V
0.1
µ
F
100
3
1
2
8
4
5
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 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076