EL2150CEL2157C
June
1996
Rev
B
EL2150C EL2157C
125 MHz Single Supply Clamping Op Amps
Note All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication however this data sheet cannot be a ``controlled document'' Current revisions if any to these
specifications are maintained at the factory and are available upon your request We recommend checking the revision level before finalization of your design documentation
1995 Elantec Inc
Features
Specified for
a
3V
a
5V or
g
5V Applications
Power Down to 0 mA (EL2157C)
Output Voltage Clamp
(EL2157C)
Large Input Comon Mode Range
0V
k
V
CM
k
Vs - 1 2V
Output Swings to Ground
Without Saturating
b
3 dB Bandwidth
e
125 MHz
g
0 1 dB Bandwidth
e
30 MHz
Low Supply Current
e
5 mA
Slew Rate
e
275V
ms
Low Offset Voltage
e
2 mV max
(PDIP and SO Packages)
Output Current
e
g
100 mA
High Open Loop Gain
e
80 dB
Differential Gain
e
0 05%
Differential Phase
e
0 05
Applications
Video Amplifier
PCMCIA Applications
A D Driver
Line Driver
Portable Computers
High Speed Communications
RGB Applications
Broadcast Equipment
Active Filtering
Ordering Information
Part No
Temp Range
Package
Outline
EL2150CN
b
40 C to
a
85 C 8 Pin PDIP
MDP0031
EL2150CS
b
40 C to
a
85 C 8 Pin SOIC
MDP0027
EL2150CW
b
40 C to
a
85 C 5 Pin SOT23
MDP0038
EL2157CN
b
40 C to
a
85 C 8 Pin PDIP
MDP0031
EL2157CS
b
40 C to
a
85 C 8 Pin SOIC
MDP0027
See
Ordering
Information
section
of
databook
General Description
The EL2150C EL2157C are the electronics industry's fastest
single supply op amps available Prior single supply op amps
have generally been limited to bandwidths and slew rates
that of the EL2150C EL2157C
The 125 MHz bandwidth
275 V
ms slew rate and 0 05% 0 05 differential gain differen-
tial phase makes this part ideal for single or dual supply video
speed applications With its voltage feedback architecture this
amplifier can accept reactive feedback networks allowing them
to be used in analog filtering applications The inputs can sense
signals below the bottom supply rail and as high as 1 2V below
the top rail Connecting the load resistor to ground and operat-
ing from a single supply the outputs swing completely to
ground without saturating The outputs can also drive to within
1 2V of the top rail The EL2150C EL2157C will output
g
100
mA and will operate with single supply voltages as low as 2 7V
making it ideal for portable low power applications
The EL2157C has a high speed disable feature Applying a low
logic level to this pin reduces the supply current to 0
mA within
50 ns This is useful for both multiplexing and reducing power
consumption
The EL2157C also has an output voltage clamp feature This
clamp is a fast recovery (
k
7 ns) output clamp that prevents the
output voltage from going above the preset clamp voltage This
feature is desirable for A D applications as A D converters can
require long times to recover if overdriven
For applications where board space is critical the EL2150C is
available in the tiny 5 lead SOT23 package which has a foot-
print 28% the size of an 8 lead SOIC The EL2150C EL2157C
are also both available in 8 pin plastic DIP and SOIC packages
All parts operate over the industrial temperature range of
b
40 C to
a
85 C For dual triple or quad applications contact
the factory
Connection Diagrams
EL2150C
EL2157C
EL2150C
SO P-DIP
SO P-DIP
SOT23-5
2150 3
2150 2
2150 1
Top View
Top View
Top View
EL2150C EL2157C
125 MHz Single Supply Clamping Op Amps
Absolute Maximum Ratings
(T
A
e
25 C)
Supply Voltage between V
Sa
and GND
a
12 6V
Input Voltage (IN
a
IN
b
ENABLE CLAMP)
GND
b
0 3V V
S
a
0 3V
Differential Input Voltage
g
6V
Maximum Output Current
90 mA
Output Short Circuit Duration
(note 1)
Power Dissipation
See Curves
Storage Temperature Range
b
65 C to
a
150 C
Ambient Operating Temperature Range
b
40 C to
a
85 C
Operating Junction Temperature
150 C
Important Note
All parameters having Min Max specifications are guaranteed The Test Level column indicates the specific device testing actually
performed during production and Quality inspection Elantec performs most electrical tests using modern high-speed automatic test
equipment specifically the LTX77 Series system Unless otherwise noted all tests are pulsed tests therefore T
J
e
T
C
e
T
A
Test Level
Test Procedure
I
100% production tested and QA sample tested per QA test plan QCX0002
II
100% production tested at T
A
e
25 C and QA sample tested at T
A
e
25 C
T
MAX
and T
MIN
per QA test plan QCX0002
III
QA sample tested per QA test plan QCX0002
IV
Parameter is guaranteed (but not tested) by Design and Characterization Data
V
Parameter is typical value at T
A
e
25 C for information purposes only
DC Electrical Characteristics
(Note 2) V
S
e a
5V GND
e
0V T
A
e
25 C V
CM
e
1 5V V
OUT
e
1 5V V
CLAMP
e a
5V V
ENABLE
e a
5V unless otherwise specified
Parameter
Description
Conditions
Min Typ Max
Test
Units
Level
V
OS
Offset Voltage
PDIP and SOIC Packages
b
2
2
I
mV
SOT23-5 Package
b
3
3
I
mV
TCV
OS
Offset Voltage Temperature Coefficient
Measured from Tmin to Tmax
10
V
mV C
IB
Input Bias Current
V
IN
e
0V
b
5 5
b
10
I
mA
I
OS
Input Offset Current
V
IN
e
0V
b
750 150
750
I
nA
TCI
OS
Input Bias Current Temperature Coefficient Measured from Tmin to Tmax
50
V
nA C
PSRR
Power Supply Rejection Ratio
V
S
e
V
ENABLE
e a
2 7V to
a
12V
55
70
I
dB
V
CLAMP
e
OPEN
CMRR
Common Mode Rejection Ratio
VCM
e
0V to
a
3 8V
55
65
I
dB
VCM
e
0V to
a
3 0V
55
70
I
dB
CMIR
Common Mode Input Range
0
V
S
b
1 2
I
V
R
IN
Input Resistance
Common Mode
1
2
I
M
X
C
IN
Input Capacitance
SOIC Package
1
V
pF
PDIP Package
1 5
V
pF
R
OUT
Output Resistance
Av
e a
1
40
V
m
X
I
S ON
Supply Current
Enabled
V
S
e
V
CLAMP
e a
12V V
ENABLE
e a
12V
5
6 5
I
mA
I
S OFF
Supply Current
Shut Down
V
S
e
V
CLAMP
e a
10V V
ENABLE
e a
0 5V
0
50
I
mA
V
S
e
V
CLAMP
e a
12V V
ENABLE
e a
0 5V
5
V
mA
PSOR
Power Supply Operating Range
2 7
12 0
I
v
2
TAB
WIDE
TD
is
38in
EL2150C EL2157C
125 MHz Single Supply Clamping Op Amps
DC Electrical Characteristics
Contd
(Note 2) V
S
e a
5V GND
e
0V T
A
e
25 C V
CM
e a
1 5V V
OUT
e a
1 5V V
CLAMP
e a
5V V
ENABLE
e a
5V unless otherwise
specified
Parameter
Description
Conditions
Min Typ Max
Test
Units
Level
PSOR
Power Supply Operating Range
2 7
12 0
I
V
AVOL
Open Loop Gain
V
S
e
V
CLAMP
e a
12V V
OUT
e a
2V to
65
80
I
dB
a
9V R
L
e
1 k
X to GND
V
OUT
e a
1 5V to
a
3 5V
70
V
dB
R
L
e
1 k
X to GND
V
OUT
e a
1 5V to
a
3 5V
60
V
dB
R
L
e
150
X to GND
V
OP
Positive Output Voltage Swing
V
S
e a
12V A
V
e a
1 R
L
e
1 k
X to 0V
10 8
V
V
V
S
e a
12V A
V
e a
1 R
L
e
150
X to 0V
9 6
10 0
I
V
V
S
e
g
5V A
V
e a
1 R
L
e
1 k
X to 0V
4 0
V
V
V
S
e
g
5V A
V
e a
1 R
L
e
150
X to 0V
3 4
3 8
I
V
V
S
e a
3V A
V
e a
1 R
L
e
150
X to 0V
1 8
1 95
I
V
V
ON
Negative Output Voltage Swing
V
S
e a
12V A
V
e a
1 R
L
e
150
X to 0V
5 5
8
I
mV
V
S
e
g
5V A
V
e a
1 R
L
e
1 k
X to 0V
b
4 0
V
V
V
S
e
g
5V A
V
e a
1 R
L
e
150
X to 0V
b
3 7
b
3 4
I
V
I
OUT
Output Current (Note 1)
V
S
e
g
5V A
V
e a
1 R
L
e
10
X to 0V
g
75
g
100
I
mA
V
S
e
g
5V A
V
e a
1 R
L
e
50
X to 0V
g
60
V
mA
I
OUT OFF
Output Current Disabled
V
ENABLE
e a
0 5V
0
20
I
mA
V
IH-EN
ENABLE pin Voltage for Power Up
Relative to GND pin
2 0
I
V
V
IL-EN
ENABLE pin Voltage for Shut Down
Relative to GND pin
0 5
I
V
I
IH-EN
ENABLE pin Input Current-High (Note 3) V
S
e
V
CLAMP
e a
12V V
ENABLE
e a
12V
340
410
I
mA
I
IL-EN
ENABLE pin Input Current-Low (Note 3) V
S
e
V
CLAMP
e a
12V V
ENABLE
e a
0 5V
0
1
I
mA
V
OR-CL
Voltage Clamp Operating Range (Note 4)
Relative to GND pin
1 2
V
OP
I
V
V
ACC-CL
CLAMP Accuracy (Note 5)
V
IN
e a
4V R
L
e
1 k
X to GND
b
250 100
250
I
mV
V
CLAMP
e a
1 5V and
a
3 5V
I
IH-CL
CLAMP pin Input Current
High
V
S
e
V
CLAMP
e a
12V
12
25
I
mA
I
IL-CL
CLAMP pin Input Current
Low
V
S
e a
12V V
CLAMP
e a
1 2V
b
20
b
15
I
mA
3
TD
is
52in
EL2150C EL2157C
125 MHz Single Supply Clamping Op Amps
Closed Loop AC Electrical Characteristics
(Notes 2
6) V
S
e a
5V GND
e
0V T
A
e
25 C V
CM
e a
1 5V V
OUT
e a
1 5V V
CLAMP
e a
5V V
ENABLE
e a
5V A
V
e a
1
R
F
e
0
X R
L
e
150
X to GND pin unless otherwise specified
Parameter
Description
Conditions
Min Typ Max
Test
Units
Level
BW
b
3 dB Bandwidth (V
OUT
e
400 mVp-p)
V
S
e a
5V A
V
e a
1 R
F e
0
X
125
V
MHz
V
S
e a
5V A
V
e b
1 R
F
e
500
X
60
V
MHz
V
S
e a
5V A
V
e a
2 R
F
e
500
X
60
V
MHz
V
S
e a
5V A
V
e a
10 R
F
e
500
X
6
V
MHz
V
S
e a
12V A
V
e a
1 R
F
e
0
X
150
V
MHz
V
S
e a
3V A
V
e a
1 R
F
e
0
X
100
V
MHz
BW
g
0 1 dB Bandwidth (V
OUT
e
400 mVp-p) V
S
e a
12V A
V
e a
1 R
F
e
0
X
25
V
MHz
V
S
e a
5V A
V
e a
1 R
F
e
0
X
30
V
MHz
V
S
e a
3V A
V
e a
1 R
F
e
0
X
20
V
MHz
GBWP
Gain Bandwidth Product
V
S
e a
12V
A
V
e a
10
60
V
MHz
PM
Phase Margin
R
L
e
1 k
X CL
e
6 pF
55
V
SR
Slew Rate
V
S
e a
10V R
L
e
150
X V
out
e
0V to
a
6V
200 275
I
V
ms
V
S
e a
5V R
L
e
150
X V
OUT
e
0V to
a
3V
300
V
V
ms
t
R
t
F
Rise Time Fall Time
g
0 1V step
2 8
V
ns
OS
Overshoot
g
0 1V step
10
V
%
t
PD
Propagation Delay
g
0 1V step
3 2
V
ns
t
S
0 1% Settling Time
V
S
e
g
5V R
L
e
500
X A
V
e a
1 V
OUT
e
g
3V
40
V
ns
0 01% Settling Time
V
S
e
g
5V R
L
e
500
X A
V
e a
1 V
OUT
e
g
3V
75
V
ns
dG
Differential Gain (Note 7)
A
V
e a
2 R
F
e
1 k
X
0 05
V
%
dP
Differential Phase (Note 7)
A
V
e a
2 R
F
e
1 k
X
0 05
V
e
N
Input Noise Voltage
f
e
10 kHz
48
V
nV
0
Hz
i
N
Input Noise Current
f
e
10 kHz
1 25
V
pA
0
Hz
t
DIS
Disable Time (Note 8)
50
V
ns
t
EN
Enable Time (Note 8)
25
V
ns
t
CL
Clamp Overload Recovery
7
V
ns
Note 1 Internal short circuit protection circuitry has been built into the EL2150C EL2157C See the Applications section
Note 2 CLAMP pin and ENABLE pin specifications apply only to the EL2157C
Note 3 If the disable feature is not desired tie the ENABLE pin to the V
S
pin or apply a logic high level to the ENABLE pin
Note 4 The maximum output voltage that can be clamped is limited to the maximum positive output Voltage or V
OP
Applying a
Voltage higher than V
OP
inactivates the clamp If the clamp feature is not desired either tie the CLAMP pin to the V
S
pin
or simply let the CLAMP pin float
Note 5 The clamp accuracy is affected by V
IN
and R
L
See the Typical Curves Section and the Clamp Accuracy vs V
IN
R
L
curve
Note 6 All AC tests are performed on a ``warmed up'' part except slew rate which is pulse tested
Note 7 Standard NTSC signal
e
286 mVp-p f
e
3 58MHz as VIN is swept from 0 6V to 1 314V R
L
is DC coupled
Note 8 Disable Enable time is defined as the time from when the logic signal is applied to the ENABLE pin to when the supply
current has reached half its final value
4
TD
is
51in
EL2150C EL2157C
125 MHz Single Supply Clamping Op Amps
Typical Performance Curves
Non-Inverting
Frequency Response (Gain)
Frequency Response (Phase)
Non-Inverting
Non-Inverting Gains
Temperature for
3 dB Bandwidth vs
Response (Gain)
Inverting Frequency
Response (Phase)
Inverting Frequency
Inverting Gains
Temperature for
3 dB Bandwidth vs
for Various R
L
Frequency Response
for Various C
L
Frequency Response
Common Mode Voltage
Frequency Response vs
Non-Inverting
2150 74
5
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