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EL2150CEL2157C
June
1996
Rev
B
EL2150CEL2157C
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 VCM k Vs - 12V
Output Swings to Ground
Without Saturating
b3 dB Bandwidth e 125 MHz
g 01 dB Bandwidth e 30 MHz
Low Supply Current e 5mA
Slew Rate e 275V ms
Low Offset Voltage e 2mVmax
(PDIP and SO Packages)
Output Current e g100 mA
High Open Loop Gain e 80 dB
Differential Gain e 005%
Differential Phase e 005
Applications
Video Amplifier
PCMCIA Applications
AD Driver
Line Driver
Portable Computers
High Speed Communications
RGB Applications
Broadcast Equipment
Active Filtering
Ordering Information
Part No
Temp Range
Package
Outline
EL2150CN b40 Cto a85 C 8 Pin PDIP
MDP0031
EL2150CS
b
40 Cto a85 C 8 Pin SOIC
MDP0027
EL2150CW b40 Cto a85 C 5 Pin SOT23
MDP0038
EL2157CN b40 Cto a85 C 8 Pin PDIP
MDP0031
EL2157CS
b
40 Cto a85 C 8 Pin SOIC
MDP0027
See
Ordering
Information
section
of
databook
General Description
The EL2150CEL2157C 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 EL2150CEL2157C
The 125 MHz bandwidth
275 V
ms slew rate and 005%005 differential gaindifferen-
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 12V 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
12V of the top rail The EL2150CEL2157C will output g100
mA and will operate with single supply voltages as low as 27V
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 (k7 ns) output clamp that prevents the
output voltage from going above the preset clamp voltage This
feature is desirable for AD applications as AD 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 EL2150CEL2157C
are also both available in 8 pin plastic DIP and SOIC packages
All parts operate over the industrial temperature range of
b
40 Cto a85 C For dual triple or quad applications contact
the factory
Connection Diagrams
EL2150C
EL2157C
EL2150C
SO P-DIP
SOT23-5
2150 – 3
2150 – 2
2150 – 1
Top View