EL2170C EL2270C EL2470C
EL2170C EL2270C EL2470C
70 MHz 1 mA Current Mode Feedback Amplifiers
Features
Single (EL2170C) dual
(EL2270C) and quad (EL2470C)
topologies
1 mA supply current (per
amplifier)
70 MHz
b
3 dB bandwidth
Tiny SOT23-5 Package
(EL2170C)
Low cost
Single- and dual-supply
operation down to
g
1 5V
0 15% 0 15 diff gain diff phase
into 150X
800 V
ms
slew rate
Large output drive current
100 mA (EL2170C)
55 mA (EL2270C)
55 mA (EL2470C)
Also available with disable in
single (EL2176C) and dual
(EL2276C)
Higher speed EL2180C EL2186C
family also available (3 mA
250 MHz) in single dual and
quad
General Description
The EL2170C EL2270C EL2470C are single dual quad cur-
rent-feedback operational amplifiers which achieve a
b
3 dB
bandwidth of 70 MHz at a gain of
a
1 while consuming only
1 mA of supply current per amplifier They will operate with
dual supplies ranging from
g
1 5V to
g
6V or from single sup-
plies ranging from
a
3V to
a
12V In spite of their low supply
current the EL2270C and the EL2470C can output 55 mA while
swinging to
g
4V on
g
5V supplies The EL2170C can output
100 mA with similar output swings These attributes make the
EL2170C EL2270C EL2470C excellent choices for low power
and or low voltage cable-driver HDSL or RGB applications
For applications where board space is extremely critical the
EL2170C is available in the tiny 5-Lead SOT23 package which
has a footprint 28% the size of an 8-Lead SOIC The EL2170C
EL2270C EL2470C are each also available in industry standard
pinouts in PDIP and SOIC packages
For Single and Dual applications with disable consider the
EL2176C (8-Pin Single) or EL2276C (14-Pin Dual) For higher
speed applications where power is still a concern consider the
EL2180C El2186C family which also comes in similar Single
Dual Triple and Quad configurations The EL2180C EL2186C
family provides a
b
3 dB bandwidth of 250 MHz while consum-
ing 3 mA of supply current per amplifier
Connection Diagrams
EL2170C SO P-DIP
EL2270C SO P-DIP
Applications
Low power battery applications
HDSL amplifiers
Video amplifiers
Cable drivers
RGB amplifiers
Test equipment amplifiers
Current to voltage converters
2170 – 1
EL2170C SOT23-5
EL2470C SO P-DIP
January 1996 Rev B
Ordering Information
Part No
Temp Range
Package
Outline
MDP0031
MDP0027
MDP0038
MDP0031
MDP0027
2170 – 46
EL2170CN
b
40 C to
a
85 C 8-Pin PDIP
EL2170CS
b
40 C to
a
85 C 8-Pin SOIC
EL2170CW
b
40 C to
a
85 C 5-Pin SOT23
EL2270CN
b
40 C to
a
85 C 8-Pin PDIP
EL2270CS
b
40 C to
a
85 C 8-Pin SOIC
EL2470CN
b
40 C to
a
85 C 14-Pin PDIP MDP0031
EL2470CS
b
40 C to
a
85 C 14-Pin SOIC
MDP0027
Top View
See Ordering
databook
Information
section
of
2170 – 2
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
ELANTEC [ ELANTEC SEMICONDUCTOR ]
