High Speed Buffer
CORPORATION
CLM6121 / CLM6321
FEATURES
GENERAL DESCRIPTION
The CLM6121 family are high speed unity gain buffers that slew
at 1200V/µs, having a small signal bandwidth of 100MHz, and
capable of providing a continuous output current of
±200mA.
They are monolithic ICs which are pin to pin compatible with
the LH0002H/CH with the additional feature of current limiting.
The internal output short circuit current limiting feature has
been designed in the device such that when the junction
temperature reaches 170
o
C, the current is limited to 100mA.
ORDERING INFORMATION
Part
CLM6121 H
CLM6321 H
CLM6121 N
CLM6321 N
CLM6121 M
CLM6321 M
Package
Temperature Range
-55
o
C to 125
o
C
-40
o
C to 85
o
C
-40
o
C to 85
o
C
-40
o
C to 85
o
C
-25
o
C to 70
o
C
-25
o
C to 70
o
C
Hermetic TO5 8 Lead
Hermetic TO5 8 Lead
Plastic P Dip 8 Lead
Plastic P Dip 8 Lead
SOIC 8 Lead
SOIC 8 Lead
•
Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1200V/µs
•
Wide Bandwidth. . . . . . . . . . . . . . . . . . . . . . . . . . 100MHz
•
Output current . . . . . . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 230mA
. 2MΩ
•
High Input Impedance
•
No Oscillations with Capacitive Loads
Guaranteed
•
5V to
±15V
OperationLimiting
•
Current and Thermal
•
Fully Specified to Drive 50Ω Lines
•
•
•
APPLICATIONS
Line Driving
Radar
Sonar
CONNECTION DIAGRAMS
Plastic DIP
*V-
V
IN
N/C
*V-
1
2
3
4
8
7
6
5
V-*
V
OUT
V+
V-*
Metal Can
V
IN
V
1+
1
V
2+
2
3
N/C
4
V
OUT
Top View
5
N/C
8
7
6 V
2-
V
1-
Plastic SO
*V-
V
IN
N/C
*V-
1
2
3
4
8
7
6
5
V-*
V
OUT
V+
V-*
*Heat-sinking pins. Pin 1 and Pin 8
must be connected to the negative supply.
*Heat-sinking pins. Pin 1 and Pin 8
must be connected to the negative supply.
Package MO8A
Package NO8A
Package HO8A
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
CLM6121 / CLM6321
CORPORATION
ABSOLUTE MAXIMUM RATINGS
(Note 1)
If Military/Aerospace specified devices are required, please
contact the Calogic Sales Office for availability and
specifications.
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±18
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±Vsupply
Short Circuit to GND (Note 2) . . . . . . . . . . . . . . . . Continuous
Storage Temperature Range . . . . . . . . . . . . -65
o
C to +150
o
C
Lead Temperature
(Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . 260
o
C
ESD Tolerance (Note 4). . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance (θ
JA
) (Note 7)
H Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
M Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance (θ
JC
)
H Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±2000V
125
o
C/W
50
o
C/W
60
o
C/W
15
o
C/W
DC ELECTRICAL CHARACTERISTICS
The following specifications apply for Supply Voltage =
±15V,
V
CM
= 0, R
L
≥
100kΩ and R
S
= 50Ω 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.
CLM6121
SYMBOL
CHARACTERISTICS
TYP
Limit
(Note 6)
0.980
0.970
0.860
0.800
0.780
0.750
30
50
4
7
CLM6321
Limit
(Note 6)
0.970
0.950
0.850
0.820
0.750
0.700
50
100
5
7
mV Max
µA
Max
MΩ
pF
5
10
18
20
16
18
13.3
13
11.5
10
11
9
1.6
1.3
60
55
5
6
20
22
mA Max
I
S2
V
O1
V
O2
V
O3
V
O4
PSSR
Supply Current 2
Output Swing 1
Output Swing 2
Output Swing 3
Output Swing 4
Power Supply
Rejection Ratio
14
13.5
12.7
12
1.8
70
18
20
13.2
13
11
10
10
9
1.6
1.5
60
50
V
PP
Min
dB Min
±V
Min
R
L
=
∞,
V
+
= 5V
R
L
= 1k
R
L
= 100Ω
R
L
= 50Ω
R
L
= 50Ω, V
+
= 5V (Note 6)
V
±
=
±5V
to
±15V
Ω
Max
I
OUT
=
±10mA
R
L
=
∞
V/V Min
UNITS
CONDITIONS
A
V1
A
V2
A
V3
V
OS
I
B
R
IN
C
IN
R
O
I
S1
Voltage Gain 1
Voltage Gain 2
Voltage Gain 3
Offset Voltage
Input Bias Current
Input Resistance
Input Capacitance
Output Resistance
Supply Current 1
0.990
0.900
0.840
15
1
5
3.5
3
15
R
L
= 1kΩ, V
IN
=
±10V
R
L
= 50Ω, V
IN
=
±10V
R
L
= 50Ω, V
+
= 5V
V
IN
= 2V
PP
R
L
= 1kΩ
R
L
= 1kΩ, R
S
= 10kΩ,
R
L
= 50Ω
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
CLM6121 / CLM6321
CORPORATION
AC ELECTRICAL CHARACTERISTICS
The following specifications apply for Supply Voltage =
±15V,
V
CM
= 0, R
L
≥
100kΩ and R
S
= 50Ω 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.
CLM6121
SYMBOL
CHARACTERISTICS
TYP
Limit (Note 6) Limit (Note 6)
SR
1
SR
2
SR
3
BW
t
r
, t
f
t
pd
O
S
Slew Rate 1
Slew Rate 2
Slew Rate 3
-3 dB Bandwidth
Rise Time
Fall Time
Propagation Delay Time
Overshoot
1200
800
650
50
7.0
4.0
10
550
550
550
30
550
550
550
30
V/µs
V/µs
V/µs
MHz
ns
ns
%
V
IN
=
±11V,
R
L
= 1kΩ
V
IN
=
±5V,
R
L
= 50Ω (Note 3)
V
IN
= 2 V
PP
, R
L
= 50Ω
V
+
= 5V
V
IN
=
±100
mV
PP
, R
L
= 50Ω
C
L
≤
10pF
R
L
= 50Ω, C
L
≤
10pF
V
O
= 100mV
PP
R
L
= 50Ω, C
L
≤
10pF
V
O
= 100mV
PP
R
L
= 50Ω, C
L
≤
10pF
V
O
= 100mV
PP
CLM6321
UNITS
CONDITIONS
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:
The CLM6121 series buffers contain current limit and thermal shutdown to protect against fault conditions.
Note 3:
Slew rate is measured with a
±11V
input pulse and 50Ω source impedance at 25
o
C. For accurate measurements, the input slew rate
should be at least 1700V/µs.
Note 4:
The test circuit consists of the human body model of 120pF in series with 1500Ω.
Note 5:
The maximum power dissipation is a function of T
J(max),
θ
JA
and T
A
. The maximum allowable power dissipation at any ambient
temperature is P
D
= (T
J(max)
- T
A
)/θ
JA
.
Note 6:
Limits are guaranteed by testing, correlation or periodic characterization.
Note 7:
For M & N package,
θ
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.
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
CLM6121 / CLM6321
CORPORATION
POWER SUPPLY REJECTION RATIO (dB)
PSSR
vs Frequency
+80
+70
+60
+50
+40
+30
+20
+10
0
0
100k
1M
10M
100M
FREQUENCY (Hz)
NEGATIVE
SUPPLY
V
S
= ±15V
V
RIPPLE
= 100mV
R
S
= R
L
= 50Ω
T
J
= 25˚C
POSITIVE
SUPPLY
10
Rise Time
vs Temperature
V
S
= ±5V
V
S
= ±15V
SLEW RATE (V/µs)
Slew Rate
vs Supply Voltage
1250
T
J
= 25˚C
1000
R
L
= 1k
750
8
RISE TIME (ns)
R
L
= 50Ω
6
4
R
L
= 1k
2
V
OUT
= 100mV
pp
f = 1MHz
-25
25
75
V
S
= ±5V
V
S
= ±15V
500
R
L
= 50Ω
250
0
125
175
0
±5
±10
±15
±20
SUPPLY VOLTAGE (±V)
TEMPERATURE (˚C)
Slew Rate
vs Temperature
1250
R
L
= 1k
V
IN
= ±10V
1250
Slew Rate
vs Capacitive Load
50
OUTPUT RESISTANCE (Ω)
Output Resistance
vs Supply Voltage
I
OUT AC
= 1mA
I
OUT DC
= 0
1000
SLEW RATE (V/µs)
1000
SLEW RATE (V/µs)
R
L
= 1k
V
IN
= ±10V
V
S
= ±15V
T
J
= 25˚C
40
750
R
L
= 50Ω
V
IN
= ±5V
750
30
T
J
= +125˚C
20
T
J
= +25˚C
10
T
J
= -55˚C
0
0
±5
±10
±15
±20
500
500
R
L
= 50Ω
250
V
IN
= ±5V
200mA
SR =
C
L
40
100
400 1000 2000
250
V
S
= ±15V
0
-25
25
75
125
JUNCTION TEMPERATURE (˚C)
0
10
CAPACITIVE LOAD (pF)
SUPPLY VOLTAGE (±V)
Output Impedance
vs Frequency
1000
OUTPUT IMPEDANCE (Ω)
Supply Current
vs Supply Voltage
20
+50
I
OUT
= 0mA
INPUT CURRENT (µA)
Input Current
vs Supply Voltage
+40
+30
+20
+10
0
-10
-20
-30
-40
-50
±20
0
±5
±10
T
J
= -55˚C
±15
±20
T
J
= +25˚C
T
J
= +125˚C
V
IN
= 0V
SUPPLY CURRENT (mA)
V
S
= ±15V
T
J
= 25˚C
I
OUT AC
= 100µA
100
18
16
14
12
10
8
6
4
2
T
J
= -55˚C
R
S
= 100k
10
R
S
= 50Ω
1
100k
T
J
= +25˚C
T
J
= +125˚C
0
±5
±10
±15
0
1M
10M
100M
FREQUENCY (Hz)
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
CLM6121 / CLM6321
CORPORATION
Input Resistance
vs Temperature
100
40
INPUT RESISTANCE (MΩ)
Voltage Gain vs Frequency
Different Resistive Loads -
Fixed Capacitive Load
Voltage Gain vs Frequency
No Resistive Load -
Different Capacitive Loads
25
V
S
= ±15V
V
IN
= ±12V
R
L
= 100Ω
20
VOLTAGE GAIN (dB)
10
4.0
2.0
1.0
0.4
0.2
0.1
-25
25
75
125
175
JUNCTION TEMPERATURE (˚C)
10
5
0
-5
-10
-15
-20
-25
1
VOLTAGE GAIN (dB)
20
15
V
S
= ±15V
C
L
< 10pF
T
J
= 25˚C
V
O
= 100mV
R
L
= 100Ω
R
L
> 1k
25
20
15
10
5
0
-5
C
L
= 0.01µF
C
L
= 100pF
C
L
= 500pF
C
L
= 1000pF
R
L
= 50Ω
R
L
= 10Ω
4
10
40
100 200
-10 V
S
= ±15V
-15 R
L
= 10MΩ
T = 25˚C
-20
J
V
O
< 100mV
-25
1
4
10
40
100 200
FREQUENCY (MHz)
FREQUENCY (MHz)
Voltage Gain vs Frequency
50Ω Resistive Load -
Different Capacitive Loads
Phase Shift vs Frequency
Different Resistive Loads
Phase Shift vs Frequency
Different Source Resisters
25
20
VOLTAGE GAIN (dB)
PHASE SHIFT (DEGREES)
15
10
5
0
-5
-10
-15
-20
-25
1
C
L
= 500pF
C
L
= 100pF
-10
-20
-30
-40
-50
-60
-70
-80
-90
V
S
= ±15V
R
S
= 50Ω
T
J
= 25˚C
V
O
< 100mV
1
4
10
40
100 200
R
L
= 10Ω
R
L
= 50Ω
PHASE SHIFT (DEGREES)
V
S
= ±15V
R
L
= 50Ω
T
J
= 25˚C
V
O
< 100mV
C
L
= 1000pF
0
R
L
=
∞
0
-10
-20
-30
-40
-50
-60
-70
-80
R
S
= 10k
V
S
= ±15V
R
L
= 50Ω
T
J
= 25˚C
V
O
< 100mV
1M
R
S
= 1k
R
S
= 50Ω
C
L
= 0.01µF
4
10
40
100 200
-90
100k
10M
100M
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (Hz)
Small Signal Bandwidth
vs Supply Voltage
200
-3 dB BANDWIDTH (MHz)
150
V
IN
= 100mV
R
L
= 50Ω
R
S
= 50Ω
T
J
= -55˚C
T
J
= +25˚C
100
T
J
= +125˚C
50
0
0
±5
±10
±15
±20
SUPPLY VOLTAGE (±V)
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
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