®
EL2176, EL2276
Data Sheet
December 1995, Rev. B
FN7054
70MHz/1mA Current Mode Feedback Amp
w/Disable
The EL2176/EL2276 are single/dual
current-feedback operational
amplifiers which achieve a -3dB
bandwidth of 70MHz at a gain of +1 while consuming only
1mA of supply current per amplifier. They will operate with
dual supplies ranging from ±1.5V to ±6V, or from single
supplies ranging from +3V to +12V. The EL2176/EL2276
also include a disable/power-down feature which reduces
current consumption to 0mA while placing the amplifier
output in a high impedance state. In spite of its low supply
current, the EL2276 can output 55mA while swinging to ±4V
on ±5V supplies. The EL2176 can output 100mA with similar
output swings. These attributes make the EL2176/EL2276
excellent choices for low power and/or low voltage cable-
driver, HDSL, or RGB applications.
For Single, Dual and Quad applications without disable,
consider the EL2170 (8-Pin Single), EL2270 (8-Pin Dual) or
EL2470 (14-Pin Quad). For higher bandwidth applications
where low power is still a concern, consider the
EL2180/EL2186 family which also comes in similar Single,
Dual and Quad configurations. The EL2180/EL2186 family
provides a -3dB bandwidth of 250MHz while consuming
3mA of supply current per amplifier.
Features
• Single (EL2176) and dual (EL2276) topologies
• 1mA supply current (per amplifier)
• 70MHz -3dB bandwidth
• Low cost
• Fast disable
• Powers down to 0mA
• Single- and dual-supply operation down to ±1.5V
• 0.15%/0.15° diff. gain/diff. phase into 150Ω
• 800V/µs slew rate
• Large output drive current:
100mA (EL2176)
55mA (EL2276)
• Also available without disable in single (EL2170), dual
(EL2270) and quad (EL2470)
• Higher speed EL2180/EL2186 family also available (3mA/
250MHz) in single, dual and quad
Applications
• Low power/battery applications
• HDSL amplifiers
• Video amplifiers
Ordering Information
PART NUMBER
EL2176CN
EL2176CS
EL2276CN
EL2276CS
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PACKAGE
8-Pin PDIP
8-Pin SOIC
14-Pin PDIP
14-Pin SOIC
PKG. NO.
MDP0031
MDP0027
MDP0031
MDP0027
• Cable drivers
• RGB amplifiers
• Test equipment amplifiers
• Current to voltage converters
Pinouts
EL2176
(8-PIN SO, PDIP)
TOP VIEW
EL2276
(14-PIN SO, PDIP)
TOP VIEW
Manufactured under U.S. Patent No. 5,352,989, 5,351,012, 5,418,495
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
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Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners.
EL2176, EL2276
Absolute Maximum Ratings
(T
A
= 25°C)
Voltage between V
S
+ and V
S
- . . . . . . . . . . . . . . . . . . . . . . . . +12.6V
Common-Mode Input Voltage . . . . . . . . . . . . . . . . . . . . . V
S
- to V
S
+
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±6V
Current into +IN or -IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±7.5mA
Internal Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . See Curves
Operating Ambient Temperature Range . . . . . . . . . .-40°C to +85°C
Operating Junction Temperature Plastic Packages . . . . . . . . . 150°C
Output Current (EL2176) . . . . . . . . . . . . . . . . . . . . . . . . . . . ±120mA
Output Current (EL2276) . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±60mA
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: T
J
= T
C
= T
A
DC Electrical Specifications
PARAMETER
V
OS
TCV
OS
dV
OS
+I
IN
d+I
IN
-I
IN
d-I
IN
CMRR
-ICMR
PSRR
-IPSR
R
OL
+R
IN
+C
IN
CMIR
V
O
V
S
= ±5V, R
L
= 150Ω, ENABLE = 0V, T
A
= 25°C unless otherwise specified.
CONDITIONS
MIN
TYP
2.5
Measured from T
MIN
to T
MAX
EL2276 only
5
0.5
0.5
EL2276 only
20
4
EL2276 only
V
CM
= ±3.5 V
V
CM
= ±3.5V
V
S
is moved from ±4V to ±6V
V
S
is moved from ±4V to ±6V
V
OUT
= ±2.5V
V
CM
= ±3.5V
150
1
60
45
1.5
50
4
70
0.5
400
4
1.2
±3.5
V
S
= ±5
V
S
= +5 Single-Supply, High
V
S
= +5 Single-Supply, Low
±3.5
±4.0
±4.0
4.0
0.3
80
50
100
55
1
0
4.4
45
85
-0.04
-53
4.5
2.0
2
20
5
10
15
5
MAX
15
UNITS
mV
µV/°C
mV
µA
nA
µA
µA
dB
µA/V
dB
µA/V
kΩ
MΩ
pF
V
V
V
V
mA
mA
mA
µA
pF
kΩ
µA
µA
V
V
DESCRIPTION
Input Offset Voltage
Average Input Offset Voltage Drift
V
OS
Matching
+ Input Current
+I
IN
Matching
- Input Current
-I
IN
Matching
Common Mode Rejection Ratio
- Input Current Common Mode Rejection
Power Supply Rejection Ratio
- Input Current Power Supply Rejection
Transimpedance
+ Input Resistance
+ Input Capacitance
Common Mode Input Range
Output Voltage Swing
I
O
Output Current
EL2176 only
EL2276 only, per Amplifier
I
S
I
S(DIS)
C
OUT(DIS)
R
EN
I
IH
I
IL
V
DIS
V
EN
Supply Current
Supply Current (Disabled)
Output Capacitance (Disabled)
Enable Pin Input Resistance
Logic “1” Input Current
Logic “0” Input Current
Minimum Voltage at ENABLE to Disable
Maximum Voltage at ENABLE to Enable
ENABLE = 2.0V, per Amplifier
ENABLE = 4.5V
ENABLE = 4.5V
Measured at ENABLE = 2.0V, 4.5V
Measured at ENABLE, ENABLE = 4.5V
Measured at ENABLE, ENABLE = 0V
2
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