350MHz High Speed Buffer
CLM4125
FEATURES
·
·
High Slew Rate. . . . . . . . . . . . . . . . . . . . . . . . . . 3500V/
µ
s
·
·
Wide Bandwidth. . . . . . . . . . . . . . . . . . . . . . . . . . 350MHz
·
·
Peak Output Current . . . . . . . . . . . . . . . . . . . . . . . 100mA
·
·
No Oscillations with Capacitive Loads
·
·
Fully Specified to Drive 50
Lines
APPLICATIONS
·
·
Pulse and Video Amplifier
·
·
Coaxial Cable Driver
·
·
Video Switching and Routing
GENERAL DESCRIPTION
The CLM4125 is a high speed unity gain buffers that slew at
3500V/
µ
s, and a small signal bandwidth of 350MHz.
This device is ideal to drive a active load CRT amplifier.
ORDERING INFORMATION
Part
Package
Temperature Range
CLM4125 N
NO8A (Plastic P Dip 8 Lead) -40
o
C to 85
o
C
CLM4125 M
MO8B (SOIC 8 Lead)
-40
o
C to 85
o
C
CORPORATION
CONNECTION DIAGRAMS
1
2
3
4
5
6
7
8
Plastic SO
V
N/C
*V-
V-*
V+
V
*Heat-sinking pins. Pin 1 and Pin 8
must be connected to the negative supply.
IN
OUT
*V-
V-*
1
2
3
4
5
6
7
8
Plastic DIP
*V-
N/C
V-*
V+
V-*
*V-
V
IN
V
OUT
*Heat-sinking pins. Pin 1 and Pin 8
must be connected to the negative supply.
Package NO8A
Package MO8B
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
ABSOLUTE MAXIMUM RATINGS (Note 1)
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
20
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
Vsupply
Storage Temperature Range . . . . . . . . . . . . -65
o
C to +150
o
C
Lead Temperature
(Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . 260
o
C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . (Note 4)
ESD Tolerance (Note 3). . . . . . . . . . . . . . . . . . . . . . .
±
2000V
Thermal Resistance (
JA
) (Note 6)
N Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
o
C/W
M Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
o
C/W
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . 150
o
C
DC ELECTRICAL CHARACTERISTICS
The following specifications apply for Supply Voltage = +12, -10V, V
CM
= 0, R
L
100K
and R
S
= 50
unless otherwise noted.
Boldface limits apply for T
A
= T
J
= T
MIN
to T
MAX
; all other limits T
A
= T
J
= 25
o
C.
SYMBOL
CHARACTERISTICS
TYP
Limit (Note 5)
UNITS
CONDITIONS
A
V1
Voltage Gain 1
0.99
0.96
V/V Min
R
L
= 1K, V
IN
=
±
10V
A
V2
Voltage Gain 2
0.92
0.89
R
L
= 100
, V
IN
=
±
10V
A
V3
Voltage Gain 3
0.92
0.89
R
L
= 50
, V
IN
=
±
5V
V
OS
Offset Voltage
10
15
25
mV Max
R
L
= 1K
I
B
Input Bias Current
1
5
7
µ
A Max
R
L
= 1K
, R
S
= 10k
,
R
IN
Input Resistance
0.3
M
R
L
= 50
C
IN
Input Capacitance
3.5
pF
R
O
Output Resistance
3
5
10
Max
I
OUT
=
±
10mA
I
S1
Supply Current 1
20
30
30
mA Max
R
L
=
V
O1
Output Swing 1
11
9
±
V Min
R
L
= 1K
V
O2
Output Swing 2
9
8
R
L
= 100
V
O3
Output Swing 3
9
8
V
PP
Min
R
L
= 50
CLM4125
CORPORATION
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
AC ELECTRICAL CHARACTERISTICS
The following specifications apply for Supply Voltage = +12, -10V, V
CM
= 0, R
L
100K
and R
S
= 50
unless otherwise noted.
Boldface limits apply for T
A
= T
J
= T
MIN
to T
MAX
; all other limits T
A
= T
J
= 25
o
C.
SYMBOL
CHARACTERISTICS
TYP
Limit (Note 5)
UNITS
CONDITIONS
SR
1
Slew Rate 1
3500
3000
V/
µ
s
V
IN
=
±
4.5V, R
L
= 100
(Note 2)
SR
2
Slew Rate 2
2250
2000
V
IN
=
±
4V, R
L
= 50
(Note 2)
SS
BW
Small Signal Bandwidth
350
300
MHz
V
IN
=
±
100mV
PP
, R
L
= 50
C
L
10pF
LS
BW
Large Signal Bandwidth
140
120
V
OUT
=
±
4.5V, R
L
= 100
C
L
10pF
P
BW
Power Bandwidth
130
110
V
IN
=
±
4V, C
L
100pF
t
r
, t
f
Rise Time
Fall Time
2.5
3.5
ns
C
L
100pF
V
O
= 4V
PP
t
pd
Propagation Delay Time
2.0
ns
R
L
= 50
, C
L
10pF
V
O
= 4V
PP
O
S
Overshoot
3
%
R
L
= 50
, C
L
10pF
V
O
= 100mV
PP
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 50
source impedance at 25
o
C. For accurate measurements, the input slew rate should be at least
5000V/
µ
s.
Note 3: The test circuit consists of the human body model of 120pF in series with 1500
.
Note 4: The maximum power dissipation is a function of T
J(max),
JA
and T
A
. The maximum allowable power dissipation at any ambient
temperature is P
D
= (T
J(max)
- T
A
)/
JA
.
Note 5: Limits are guaranteed by testing, correlation or periodic characterization.
Note 6: For M & N package,
JA
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.
CLM4125
CORPORATION
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
TYPICAL PERFORMANCE CHARACTERISTICS
FREQUENCY (MHz)
1
10
2
5
BANDWIDTH
(LARGE SIGNAL & POWER)
20
50
400
100 200
8
6
4
2
0
10
9
7
5
3
1
V
OUT
(
V
)
P-P
R
L
= 100
R
L
= 50
SUPPLY VOLTAGE (±V)
1
SUPPLY VOLTAGE
vs BANDWIDTH
140
-3dB BANDWIDTH (M
Hz)
3
5
7
9
400
380
360
340
320
300
280
260
240
220
200
180
160
R
L
= 50
R
L
= 100
SUPPLY VOLTAGE (±V)
1
SUPPLY VOLTAGE
vs SUPPLY CURRENT
0
3
5
7
9
50
45
40
35
30
25
20
15
10
5
SUPPL
Y CURRENT (±mA)
1
OUTPUPT VOLTAGE
vs SLEW RATE
0
3
5
7
4000
3500
3000
2500
2000
1500
1000
500
V
OUT
(V )
P-P
R
L
= 50
R
L
= 100
SLEW RATE (V/
µ
s)
FREQUENCY (MHz)
GAIN (dB)
FREQUENCY RESPONSE
PHASE LAG (DEGREES)
10
0
-10
-20
-30
72
48
24
0
15
5
-5
-15
-25
20
84
60
36
12
0.5
5
1 2
10 20
200
50 100
1000
500
R
L
= 100
V
IN
100mV
C
L
100pF
T
j
= 25°C
FREQUENCY (MHz)
GAI
N
(dB)
0.5
5
1 2
FREQUENCY RESPONSE
PH
ASE
LAG
(D
EGREE
S
)
10 20
200
50 100
-5
-15
-25
-35
-45
60
40
20
0
0
-10
-20
-30
-40
5
70
50
30
10
80
90
1000
500
R
L
= 50
V
IN
100mV
C
L
10pF
T
j
= 25°C
CLM4125
CORPORATION
Information furnished by Calogic is believed to be accurate and reliable. However, no responsibility is assumed for its use: nor for any infringement of patents or other
rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent rights of Calogic.
CALOGIC CORPORATION,
237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
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