The EL2176C EL2276C are single dual current-feedback oper-
ational 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 supplies ranging from
a
3V
to
a
12V The EL2176C EL2276C also include a disable power-
down feature which reduces current consumption to 0 mA while
placing the amplifier output in a high impedance state In spite
of its low supply current the EL2276C can output 55 mA while
swinging to
g
4V on
g
5V supplies The EL2176C can output
100 mA with similar output swings These attributes make the
EL2176C EL2276C excellent choices for low power and or low
voltage cable-driver HDSL or RGB applications
For Single Dual and Quad applications without disable consid-
er the EL2170C (8-Pin Single) EL2270C (8-Pin Dual) or
EL2470C (14-Pin Quad) For higher bandwidth applications
where low power is still a concern consider the EL2180C
El2186C family which also comes in similar Single Dual and
Quad configurations The EL2180C EL2186C family provides a
b
3 dB bandwidth of 250 MHz while consuming 3 mA of supply
current per amplifier
Connection Diagrams
EL2176C SO P-DIP
EL2276C SO P-DIP
Applications
Low power battery applications
HDSL amplifiers
Video amplifiers
Cable drivers
RGB amplifiers
Test equipment amplifiers
Current to voltage converters
2176 – 1
Ordering Information
Part No
Temp Range
Package
Outline
MDP0031
MDP0027
2176 – 2
December 1995 Rev B
EL2176CN
b
40 C to
a
85 C 8-Pin PDIP
EL2176CS
b
40 C to
a
85 C 8-Pin SOIC
EL2276CN
b
40 C to
a
85 C 14-Pin PDIP MDP0031
EL2276CS
b
40 C to
a
85 C 14-Pin SOIC MDP0027
Manufactured under U S Patent No 5 352 989 5 351 012 5 418 495
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
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
Absolute Maximum Ratings
(T
A
e
25 C)
Voltage between V
S
a
and V
S
b
Common-Mode Input Voltage
Differential Input Voltage
Current into
a
IN or
b
IN
Internal Power Dissipation
Operating Ambient Temperature Range
a
12 6V
V
S
b
to V
S
a
g
6V
g
7 5 mA
See Curves
b
40 C to
a
85 C
Operating Junction Temperature
Plastic Packages
Output Current (EL2176C)
Output Current (EL2276C)
Storage Temperature Range
150 C
g
120 mA
g
60 mA
b
65 C to
a
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
I
II
III
IV
V
Test Procedure
100% production tested and QA sample tested per QA test plan QCX0002
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
QA sample tested per QA test plan QCX0002
Parameter is guaranteed (but not tested) by Design and Characterization Data
Parameter is typical value at T
A
e
25 C for information purposes only
DC Electrical Characteristics
V
S
e
g
5V R
L
e
150X ENABLE
e
0V T
A
e
25 C unless otherwise specified
Parameter
V
OS
TCV
OS
dV
OS
a
I
IN
Description
Input Offset Voltage
Average Input Offset Voltage Drift
V
OS
Matching
a
Input Current
a
I
IN
Matching
b
Input Current
b
I
IN
Matching
Conditions
Min
Typ
25
Max
15
Test
Level
I
V
V
Units
mV
mV
C
mV
mA
nA
mA
mA
dB
mA
V
dB
mA
V
kX
MX
pF
V
Measured from T
MIN
to T
MAX
EL2276C only
5
05
05
5
I
V
d
a
I
IN
b
I
IN
EL2276C only
20
4
15
I
V
I
d
b
I
IN
CMRR
b
ICMR
EL2276C only
V
CM
e
g
3 5 V
V
CM
e
g
3 5V
V
S
is moved from
g
4V to
g
6V
V
S
is moved from
g
4V to
g
6V
V
OUT
e
g
2 5V
V
CM
e
g
3 5V
150
1
60
45
15
50
4
70
05
400
4
12
g
3 5
g
4 0
Common Mode Rejection Ratio
b
Input Current Common Mode Rejection
10
I
I
PSRR
b
IPSR
Power Supply Rejection Ratio
b
Input Current Power Supply Rejection
5
I
I
I
V
I
R
OL
a
R
IN
a
C
IN
Transimpedance
a
Input Resistance
a
Input Capacitance
CMIR
Common Mode Input Range
2
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
DC Electrical Characteristics
Parameter
V
O
Description
Output Voltage Swing
V
S
e
g
5
V
S
e a
5 Single-Supply High
V
S
e a
5 Single-Supply Low
I
O
Output Current
EL2176C only
EL2276C only per Amplifier
I
S
I
S(DIS)
Supply Current
Supply Current (Disabled)
ENABLE
e
2 0V per Amplifier
ENABLE
e
4 5V
ENABLE
e
4 5V
Measured at ENABLE
e
2 0V 4 5V
Measured at ENABLE ENABLE
e
4 5V
Measured at ENABLE ENABLE
e
0V
45
20
45
80
50
Contd
Conditions
Min Typ Max
g
3 5
g
4 0
V
S
e
g
5V R
L
e
150X ENABLE
e
0V T
A
e
25 C unless otherwise specified
Test
Units
Level
I
V
V
I
I
2
20
I
I
V
I
V
V
I
I
V
V
V
mA
mA
mA
mA
pF
kX
mA
mA
V
V
40
03
100
55
1
0
44
85
b
0 04
b
53
C
OUT(DIS)
Output Capacitance (Disabled)
R
EN
I
IH
I
IL
V
DIS
V
EN
Enable Pin Input Resistance
Logic ‘‘1’’ Input Current
Logic ‘‘0’’ Input Current
Minimum Voltage at ENABLE to Disable
Maximum Voltage at ENABLE to Enable
AC Electrical Characteristics
V
S
e
g
5V R
F
e
R
G
e
1 0 kX R
L
e
150X ENABLE
e
0V T
A
e
25 C unless otherwise specified
Parameter
b
3 dB BW
b
3 dB BW
Description
b
3 dB Bandwidth
b
3 dB Bandwidth
Conditions
A
V
e a
1
A
V
e a
2
V
OUT
e
g
2 5V A
V
e a
2
V
OUT
e
g
500 mV
V
OUT
e
g
500 mV
V
OUT
e
g
500 mV
V
OUT
e
g
2 5V A
V
e b
1
A
V
e a
2 R
L
e
150X (Note 1)
A
V
e a
2 R
L
e
150X (Note 1)
A
V
e a
1 R
L
e
500X (Note 1)
A
V
e a
1 R
L
e
500X (Note 1)
A
V
e a
2 V
IN
e a
1V R
L
e
150X (Note 2)
A
V
e a
2 V
IN
e a
1V R
L
e
150X (Note 2)
EL2276C only f
e
5 MHz
Min
Typ
70
60
Max
Test Level
V
V
IV
V
V
V
V
V
V
V
V
Units
MHz
MHz
V
ms
ns
ns
%
ns
%
SR
t
r
t
f
t
pd
OS
ts
dG
dP
dG
dP
t
ON
t
OFF
CS
Slew Rate
Rise and Fall Time
Propagation Delay
Overshoot
0 1% Settling
Differential Gain
Differential Phase
Differential Gain
Differential Phase
Turn-On Time
Turn-Off Time
Channel Separation
400
800
45
45
30
40
0 15
0 15
0 02
0 01
40
1500
85
100
2000
%
I
I
V
ns
ns
dB
Note 1 DC offset from 0V to 0 714V AC amplitude 286 mV
P-P
f
e
3 58 MHz
Note 2 Measured from the application of the logic signal until the output voltage is at the 50% point between initial and final
