High Speed Buffer
CLM6121 / CLM6321
FEATURES
·
·
Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1200V/
µ
s
·
·
Wide Bandwidth. . . . . . . . . . . . . . . . . . . . . . . . . . 100MHz
·
·
Output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230mA
·
·
High Input Impedance . . . . . . . . . . . . . . . . . . . . . . . . 2M
·
·
No Oscillations with Capacitive Loads
·
·
5V to
±
15V Operation Guaranteed
·
·
Current and Thermal Limiting
·
·
Fully Specified to Drive 50
Lines
APPLICATIONS
·
·
Line Driving
·
·
Radar
·
·
Sonar
GENERAL DESCRIPTION
The CLM6121 family are high speed unity gain buffers that slew
at 1200V/
µ
s, 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
Package
Temperature Range
CLM6121 H
Hermetic TO5 8 Lead
-55
o
C to 125
o
C
CLM6321 H
Hermetic TO5 8 Lead
-40
o
C to 85
o
C
CLM6121 N
Plastic P Dip 8 Lead
-40
o
C to 85
o
C
CLM6321 N
Plastic P Dip 8 Lead
-40
o
C to 85
o
C
CLM6121 M
SOIC 8 Lead
-25
o
C to 70
o
C
CLM6321 M
SOIC 8 Lead
-25
o
C to 70
o
C
CORPORATION
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
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.
1
2
3
4
5
6
7
8
N/C
N/C
V
IN
V
OUT
V
Metal Can
Top View
1+
V
2+
V
1-
V
2-
Package NO8A
Package HO8A
Package MO8A
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). . . . . . . . . . . . . . . . . . . . . . .
±
2000V
Thermal Resistance (
JA
) (Note 7)
H Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
o
C/W
N Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
o
C/W
M Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
o
C/W
Thermal Resistance (
JC
)
H Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
o
C/W
CLM6121 / CLM6321
CORPORATION
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
DC ELECTRICAL CHARACTERISTICS
The following specifications apply for Supply Voltage =
±
15V, 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
CLM6121
CLM6321
UNITS
CONDITIONS
Limit
(Note 6)
Limit
(Note 6)
A
V1
Voltage Gain 1
0.990
0.980
0.970
0.970
0.950
V/V Min
R
L
= 1k
, V
IN
=
±
10V
A
V2
Voltage Gain 2
0.900
0.860
0.800
0.850
0.820
R
L
= 50
, V
IN
=
±
10V
A
V3
Voltage Gain 3
0.840
0.780
0.750
0.750
0.700
R
L
= 50
, V
+
= 5V
V
IN
= 2V
PP
V
OS
Offset Voltage
15
30
50
50
100
mV Max
R
L
= 1k
I
B
Input Bias Current
1
4
7
5
7
µ
A Max
R
L
= 1k
, R
S
= 10k
,
R
IN
Input Resistance
5
M
R
L
= 50
C
IN
Input Capacitance
3.5
pF
R
O
Output Resistance
3
5
10
5
6
Max
I
OUT
=
±
10mA
I
S1
Supply Current 1
15
18
20
20
22
mA Max
R
L
=
I
S2
Supply Current 2
14
16
18
18
20
R
L
=
, V
+
= 5V
V
O1
Output Swing 1
13.5
13.3
13
13.2
13
±
V Min
R
L
= 1k
V
O2
Output Swing 2
12.7
11.5
10
11
10
R
L
= 100
V
O3
Output Swing 3
12
11
9
10
9
R
L
= 50
V
O4
Output Swing 4
1.8
1.6
1.3
1.6
1.5
V
PP
Min
R
L
= 50
, V
+
= 5V (Note 6)
PSSR
Power Supply
Rejection Ratio
70
60
55
60
50
dB Min
V
±
=
±
5V to
±
15V
CLM6121 / CLM6321
CORPORATION
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
AC ELECTRICAL CHARACTERISTICS
The following specifications apply for Supply Voltage =
±
15V, 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
CLM6121
CLM6321
UNITS
CONDITIONS
Limit (Note 6) Limit (Note 6)
SR
1
Slew Rate 1
1200
550
550
V/
µ
s
V
IN
=
±
11V, R
L
= 1k
SR
2
Slew Rate 2
800
550
550
V/
µ
s
V
IN
=
±
5V, R
L
= 50
(Note 3)
SR
3
Slew Rate 3
650
550
550
V/
µ
s
V
IN
= 2 V
PP
, R
L
= 50
V
+
= 5V
BW
-3 dB Bandwidth
50
30
30
MHz
V
IN
=
±
100 mV
PP
, R
L
= 50
C
L
10pF
t
r
, t
f
Rise Time
Fall Time
7.0
ns
R
L
= 50
, C
L
10pF
V
O
= 100mV
PP
t
pd
Propagation Delay Time
4.0
ns
R
L
= 50
, C
L
10pF
V
O
= 100mV
PP
O
S
Overshoot
10
%
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: 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 50
source impedance at 25
o
C. For accurate measurements, the input slew rate
should be at least 1700V/
µ
s.
Note 4: The test circuit consists of the human body model of 120pF in series with 1500
.
Note 5: 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 6: Limits are guaranteed by testing, correlation or periodic characterization.
Note 7: 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.
CLM6121 / CLM6321
CORPORATION
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
Slew Rate
vs Temperature
1250
1000
750
500
250
0
-25
25
75
125
JUNCTION TEMPERATURE (°C)
SL
E
W
RAT
E
(V/
µ
s)
= ±10V
IN
V
L
= 50
R
= ±5V
IN
V
S
V = ±15V
L
= 1k
R
Output Resistance
vs Supply Voltage
50
40
30
20
10
0
±5
SUPPLY VOLTAGE (±V)
±10
±15
±20
0
OUTPUT RESISTANCE (
)
T
J
= -55°C
T
J
= +25°C
T
J
= +125°C
= 0
OUT DC
I
= 1mA
OUT AC
I
Slew Rate
vs Capacitive Load
1250
1000
750
500
250
0
10
40
100
400
CAPACITIVE LOAD (pF)
SL
E
W
RAT
E
(V/
µ
s)
1000 2000
= ±10V
IN
V
T
J
= 25°C
V = ±15V
S
L
= 50
R
= ±5V
IN
V
SR =
200mA
L
= 1k
R
L
C
Output Impedance
vs Frequency
1000
100
10
1
1M
FREQUENCY (Hz)
10M
100M
100k
O
U
T
P
UT
I
M
PE
D
A
N
C
E (
)
S
= 100
µ
A
OUT AC
I
V = ±15V
T
J
= 25°C
R
= 50
S
R
= 100k
S
Input Current
vs Supply Voltage
+50
+30
+10
-10
-30
-50
±5
SUPPLY VOLTAGE (V)
±10
±15
±20
0
+40
+20
0
-20
-40
INPUT CURRENT (
µ
A)
T
J
= +25°C
T
J
= +125°C
= 0V
IN
V
T
J
= -55°C
Supply Current
vs Supply Voltage
20
16
12
8
4
0
±5
SUPPLY VOLTAGE (V)
±10
±15
±20
0
18
14
10
6
2
SUPPL
Y CURRENT (mA)
T
J
= -55°C
T
J
= +25°C
T
J
= +125°C
= 0mA
OUT
I
PSSR
vs Frequency
+80
+70
+60
+50
+40
+30
+20
+10
0
100k
1M
10M
100M
FREQUENCY (Hz)
PO
W
E
R
SUPPLY R
E
J
E
C
T
I
O
N
R
A
T
I
O
(d
B)
POSITIVE
SUPPLY
NEGATIVE
SUPPLY
R
RIPPLE
V
S
V = ±15V
S
= R
L
= 50
= 100mV
T
J
= 25°C
Slew Rate
vs Supply Voltage
1250
1000
750
500
250
0
±5
SUPPLY VOLTAGE (±V)
SLEW RATE (V/
µ
s)
±10
±15
±20
0
T
J
= 25°C
L
= 50
R
L
= 1k
R
Rise Time
vs Temperature
10
8
6
4
2
0
-25
25
75
125
TEMPERATURE (°C)
RISE TIM
E (ns
)
175
L
= 1k
R
S
V = ±5V
S
V = ±15V
S
V = ±5V
S
V = ±15V
L
= 50
R
f = 1MHz
= 100mV
OUT
V
pp
CLM6121 / CLM6321
CORPORATION
Voltage Gain vs Frequency
50
Resistive Load -
Different Capacitive Loads
25
20
15
10
5
0
-5
-10
-15
-20
-25
1
4
10
40
100
200
FREQUENCY (MHz)
VOLTAGE GAIN (dB)
S
V
O
< 100mV
T
J
= 25°C
L
= 50
R
V = ±15V
C
L
= 1000pF
C
L
= 500pF
C
L
= 100pF
C
L
= 0.01
µ
F
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
100k
1M
10M
100M
FREQUENCY (Hz)
PHASE SHIFT (DEG
REES)
Phase Shift vs Frequency
Different Source Resisters
S
V
O
< 100mV
T
J
= 25°C
V = ±15V
R = 50
L
R
= 50
S
R
= 10k
S
R
= 1k
S
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
1
4
10
40
100
200
FREQUENCY (MHz)
PHASE SHIFT (DEG
REES)
Phase Shift vs Frequency
Different Resistive Loads
S
V
O
< 100mV
T
J
= 25°C
V = ±15V
R
= 50
S
L
=
R
= 10
R
L
R
L
= 50
Small Signal Bandwidth
vs Supply Voltage
200
150
100
50
0
±5
SUPPLY VOLTAGE (±V)
±10
±15
±20
0
-3 dB BANDWIDTH (M
Hz)
T
J
= -55°C
T
J
= +25°C
T
J
= +125°C
R
= 50
S
= 50
R
L
= 100mV
IN
V
Input Resistance
vs Temperature
100
40
20
10
4.0
2.0
1.0
0.4
0.2
-25
25
75
125
JUNCTION TEMPERATURE (°C)
INPUT RESISTANCE (M
)
0.1
175
V = ±15V
S
= ±12V
IN
V
= 100
R
L
Voltage Gain vs Frequency
No Resistive Load -
Different Capacitive Loads
25
20
15
10
5
0
-5
-10
-15
-20
-25
1
4
10
40
100
200
FREQUENCY (MHz)
VOLTAGE GAIN (dB)
C
L
= 1000pF
C
L
= 500pF
C
L
= 0.01
µ
F
S
V
O
< 100mV
T
J
= 25°C
L
= 10M
R
V = ±15V
C
L
= 100pF
Voltage Gain vs Frequency
Different Resistive Loads -
Fixed Capacitive Load
25
20
15
10
5
0
-5
-10
-15
-20
-25
1
4
10
40
100
200
FREQUENCY (MHz)
VOLTAGE GAIN (dB)
R = 100
L
= 10
R
L
R > 1k
L
R
L
= 50
V = ±15V
S
V
O
= 100mV
T
J
= 25°C
C
L
< 10pF
CALOGIC CORPORATION
, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-1076
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