CALOGIC LH4002 Wideband video buffer Datasheet

Wideband Video Buffer
CORPORATION
LH4002A / LH4002 / LH4002C
FEATURES
• DC to 300 MHz Bandwidth with VS =
• 3000 V/µs Slew Rate into 50Ω
GENERAL DESCRIPTION
±5V
The LH4002 family is a high speed voltage follower designed
to drive video signals from DC up to 300MHz. At voltage
supplies of ±5V, the LH4002 family will provide up to 80mA
into 50Ω at slew rates of 2000 V/µs.
APPLICATIONS
• Wideband Amplifier Buffer
Line Driver
• Wideband
• Video
• Coaxial Cable Driver
The LH4002 family is intended to fulfill a wide range of high
speed applications including video distribution, impedance
transformation, and load isolation. It is also suitable for use in
current booster applications within an op amp loop. This allows
the output current capability of existing op amps to be increased.
ORDERING INFORMATION
Part
Package
Temperature Range
LH4002AH
LH4002H
LH4002CH
LH4002AN
LH4002N
LH4002CN
HO8A (TO5-8 Lead)
HO8A (TO5-8 Lead)
HO8A (TO5-8 Lead)
N10A (Plastic Dip-10 Lead)
N10A (Plastic Dip-10 Lead)
N10A (Plastic Dip-10 Lead)
-55oC to +125oC
-55oC to +125oC
-40oC to +85oC
-40oC to +85oC
-40oC to +85oC
-40oC to +85oC
CONNECTION DIAGRAMS
METAL CAN PACKAGE
DUAL-IN-LINE
PACKAGE
INPUT
8
+VCC1
+VCC2
1
7
-VCC1
2
6
-VCC2
+VCC2
+VCC1
INPUT
-VCC1
NC
3
5
4
OUTPUT
HO8A
NC
-VCC2
1
10
2
9
3
8
4
7
5
6
E1
E3
OUTPUT
E4
E2
TOP VIEW
N10A
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
LH4002A / LH4002 / LH4002C
CORPORATION
ABSOLUTE MAXIMUM RATINGS (Note 1)
ESD Tolerance (Note 3). . . . . . . . . . . . . . . . . . . . . . . ±2000V
Thermal Resistance (θJA) (Note 6)
H Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125oC/W
N Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50oC/W
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . 150oC
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±10
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±Vsupply
Storage Temperature Range . . . . . . . . . . . . -65oC to +150oC
Lead Temperature
(Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . 260oC
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . (Note 4)
DC ELECTRICAL CHARACTERISTICS
The following specifications apply for Supply Voltage = ±5V, VCM = 0, RL ≥ 100KΩ and RS = 50Ω unless otherwise noted.
Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25oC.
SYMBOL
CHARACTERISTICS
TYP
LH4002A
LH4002
LH4002C
Limit
(Note 5)
Limit
(Note 5)
Limit
(Note 5)
UNITS
CONDITIONS
AV1
Voltage Gain 1
0.99
0.96
0.95
0.95
0.95
0.95
0.95
AV2
Voltage Gain 2
0.92
0.89
0.88
0.87
RL = 50Ω, VIN = ±3V
AV3
Voltage Gain 3
0.92
0.89
0.87
0.87
RL = 50Ω, VIN = ±2V
VOS
Offset Voltage
10
15
25
25
35
30
40
mV Max
RL = 50Ω, RS = 150Ω
IB
Input Bias Current
1
10
20
15
30
20
40
µA Max
RL = 50Ω, RS = 1KΩ
RIN
Input Resistance
0.3
MΩ
RS = 10K, RL = 50Ω
CIN
Input Capacitance
3.5
pF
RO
Output Resistance
3
10
10
10
10
10
10
Ω Max
IS1
Supply Current 1
20
30
35
30
35
35
35
mA Max
VO1
Output Swing 1
2.4
2.2
2.2
2.2
2.2
2.2
2.2
RL = 1K, VIN = ±2V, RS = 10K
V/V Min
RS = 10K, RL = 50Ω
RS = 10K, VIN = 0V, RL = 1K
RS = 150Ω, VIN = ±2.5V, RL = 50Ω
±V Min
VO2
Output Swing 2
2.2
2
2
2
2
2
2
VO3
Output Swing 3
3.6
3.0
3.0
3.0
VPP Min
IOUT
Output Current
80
60
60
60
mA
RS = 150Ω, VIN = ±2.5V, RL = 1K
RS = 150Ω, VIN = ±4.5V, RL = 50Ω
VIN = 4V
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
LH4002A / LH4002 / LH4002C
CORPORATION
AC ELECTRICAL CHARACTERISTICS
The following specifications apply for Supply Voltage = ±5V, VCM = 0, RL ≥ 100KΩ and RS = 50Ω unless otherwise noted.
Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25oC.
SYMBOL
SR1
CHARACTERISTICS
Slew Rate 1
LH4002A
LH4002
LH4002C
Limit (Note 5)
Limit (Note 5)
Limit (Note 5)
2750
2500
2500
TYP
3000
UNITS
V/µs
CONDITIONS
VIN = ±2V, RL = 50Ω (Note 2)
SR2
Slew Rate 2
2000
1750
1600
1500
VIN = ±4V, RL = 50Ω (Note 2)
SSBW
Small Signal
Bandwidth
300
250
220
200
RL = 50Ω, VOUT = 100mVP-P
LSBW
Large Signal
Bandwidth
140
100
90
80
PBW
Power Bandwidth
130
100
90
80
t r, t f
Rise Time
Fall Time
1.2
1.5
1.7
1.8
t pd
Propagation Delay
Time
OS
Overshoot
MHz
RL = 50Ω, VOUT = 2VP-P
RL = 50Ω, VOUT = 4VP-P
ns
RL = 50Ω, CL ≤ 10pF
VO = 100mVPP
2.0
ns
RL = 50Ω, CL ≤ 10pF
VO = 100mVPP
10
%
RL = 50Ω, CL ≤ 10pF
VO = 100mVPP
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not
apply when operating the device beyond its rated operating conditions.
Note 2: Slew rate is measured with 50Ω source impedance at 25oC. For accurate measurements, the input slew rate should be at least
5000V/µs.
Note 3: The test circuit consists of the human body model of 120pF in series with 1500Ω.
Note 4: The maximum power dissipation is a function of T J(max), θJA and TA. The maximum allowable power dissipation at any ambient
temperature is PD = (T J(max) - TA)/θJA.
Note 5: Limits are guaranteed by testing, correlation or periodic characterization.
Note 6: For N package, θJA is measured by soldering the unit directly on a printed circuit board and V - pins are connected to 2 square inches of 2
oz copper.
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
LH4002A / LH4002 / LH4002C
CORPORATION
TYPICAL PERFORMANCE CHARACTERISTICS
FREQUENCY RESPONSE
FREQUENCY RESPONSE
20
5
GAIN (dB)
72
-5
60
RL = 100Ω
VIN ≤ 100mV
-15
CL ≤ 100pF
-20 T = 25˚C
j
-10
48
36
24
-25
12
0.5 1 2
70
-15
60
-20
50
RL = 50Ω
VIN ≤ 100mV
-30
CL ≤ 10pF
-35 T = 25˚C
j
-25
40
30
20
10
0
5 10 20 50 100 200 500 1000
FREQUENCY (MHz)
FREQUENCY (MHz)
BANDWIDTH
(LARGE SIGNAL & POWER)
SUPPLY VOLTAGE
vs BANDWIDTH
-3dB BANDWIDTH (MHz)
RL = 100Ω
8
7
VOUT (VP-P )
-10
0.5 1 2
9
RL = 50Ω
6
5
4
3
2
1
0
2
5
10 20
400
380
360
340
320
300
280
260
240
220
200
180
160
140
RL = 100Ω
RL = 50Ω
1
50 100 200 400
3
5
7
9
FREQUENCY (MHz)
SUPPLY VOLTAGE (±V)
SUPPLY VOLTAGE
vs SUPPLY CURRENT
OUTPUPT VOLTAGE
vs SLEW RATE
50
4000
45
3500
RL = 100Ω
40
SLEW RATE (V/µs)
SUPPLY CURRENT (±mA)
80
-45
10
1
90
-40
0
5 10 20 50 100 200 500 1000
-30
0
-5
PHASE LAG (DEGREES)
84
PHASE LAG (DEGREES)
5
0
GAIN (dB)
15
10
35
30
25
20
15
10
3000
2500
2000
1500
RL = 50Ω
1000
500
5
0
0
1
3
5
7
9
SUPPLY VOLTAGE (±V)
1
3
5
7
VOUT (VP-P )
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
LH4002A / LH4002 / LH4002C
CORPORATION
Wideband Unity Gain Amplifier
+5V
0.1µF
+5V
0.01µF
1
2
VIN
+
3
OP-AMP
LH4002CN
8
VOUT
_
5
50Ω
0.01µF
4
-5V
0.1µF
50Ω
-5V
Short Circuit Protection
+5V
1
2
10
9
INPUT
3
8
LH4002
6
4
VOUT
7
5
-5V
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
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