EL2170C/EL2270C/EL2470C
70 MHz/1 mA Current Mode Feedback Amplifiers
Features
General Description
The EL2170C/EL2270C/EL2470C are single/dual/quad cur-
# Single (EL2170C), dual
(EL2270C) and quad (EL2470C)
topologies
b
rent-feedback operational amplifiers which achieve a 3 dB
bandwidth of 70 MHz at a gain of 1 while consuming only
a
1 mA of supply current per amplifier. They will operate with
g
plies ranging from 3V to 12V. In spite of their low supply
current, the EL2270C and the EL2470C can output 55 mA while
# 1 mA supply current (per
amplifier)
g
dual supplies ranging from 1.5V to 6V, or from single sup-
a
a
b
# 70 MHz 3 dB bandwidth
# Tiny SOT23-5 Package
(EL2170C)
g
g
swinging to 4V on 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.
# Low cost
# Single- and dual-supply
g
operation down to 1.5V
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.
# 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)
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
b
family provides a 3 dB bandwidth of 250 MHz while consum-
ing 3 mA of supply current per amplifier.
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
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
Ordering Information
Package Outline
Ý
Part No. Temp. Range
b
b
b
b
b
b
b
a
40 C to 85 C 8-Pin PDIP MDP0031
EL2170CN
EL2170CS
EL2170CW
EL2270CN
EL2270CS
EL2470CN
EL2470CS
§
§
40 C to 85 C 8-Pin SOIC
a
MDP0027
§
§
a
40 C to 85 C 5-Pin SOT23* MDP0038
§
§
40 C to 85 C 8-Pin PDIP MDP0031
a
§
§
40 C to 85 C 8-Pin SOIC
2170–46
a
MDP0027
§
§
40 C to 85 C 14-Pin PDIP MDP0031
Top View
a
§
§
40 C to 85 C 14-Pin SOIC MDP0027
a
§
§
*See Ordering Information section of
databook.
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.