1
FN7052
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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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.
EL2166
110MHz Current Feedback Amplifier with
Disable
The EL2166 is a current feedback
operational amplifier with -3dB
bandwidth of 110MHz at a gain of +2.
Built using the Elantec proprietary monolithic
complementary bipolar process, this amplifier uses current
mode feedback to achieve more bandwidth at a given gain
than a conventional voltage feedback operational amplifier.
The EL2166 is designed to drive a double terminated 75
coax cable to video levels. Differential gain and phase are
excellent when driving both loads of 500
(< 0.01%/< 0.01)
and double terminated 75
cables (0.025%/0.05 @
V
S
= 15V, 0.04%/0.02 @ V
S
= 5V).
The EL2166 has a superior output disable function. Time to
enable or disable is < 75ns. The DISABLE pin is TTL/CMOS
compatible. In disable mode, the amplifier can withstand
over 1500V/s signals at their outputs. The amplifier can
operate on any supply voltage from 10V (5V) to 33V
(16.5V), yet consume only 7.5mA at any supply voltage.
The EL2166 is available in 8-pin PDIP and 8-pin SO
packages.
Pinout
Features
110MHz 3dB bandwidth
(A
V
= +2)
115MHz 3dB bandwidth
(A
V
= +1)
0.01% differential gain, R
L
= 500
0.01 differential phase, R
L
= 500
Low supply current, 7.5mA
Fast disable < 75ns
Low cost
1500 V/s slew rate
Applications
Video amplifiers
Cable drivers
RGB amplifiers
Test equipment amplifiers
Current to voltage converters
Broadcast equipment
High speed communications
Video multiplexing
EL2166
(8-PIN SO, PDIP)
TOP VIEW
Manufactured under U.S. Patent No. 5,420,542, 4,893,091
Ordering Information
PART
NUMBER
TEMP. RANGE
PACKAGE
PKG. NO.
EL2166CN
-40C to +85C
8-Pin PDIP
MDP0031
EL2166CS
-40C to +85C
8-Pin SOIC
MDP0027
Data Sheet
December 1995, Rev C
OBS
OLE
TE P
ROD
UCT
NO
REC
OMM
END
ED R
EPL
ACE
MEN
T
con
tact
our
Tec
hnic
al S
upp
ort C
ente
r at
1-88
8-IN
TER
SIL
or w
ww.
inte
rsil.c
om/
tsc
2
Absolute Maximum Ratings
(T
A
= 25C)
Voltage between V
S
+ and V
S
- . . . . . . . . . . . . . . . . . . . . . . . . . .+33V
Voltage between +IN and -IN . . . . . . . . . . . . . . . . . . . . . . . . . . . .6V
Current into +IN or -IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA
Current into DISABLE Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA
Voltage between DISABLE Pin and GND Pin . . . . . . . . . . . . . . .7V
Voltage at IN+, IN-, V
OUT
,
DISABLE, GND Pins . . . . . . . . . . . . . . . (V
S-
) - 0.5V to (V
S+
) +0.5V
Internal Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . See Curves
Operating Ambient Temperature Range . . . . . . . . . . -40C to +85C
Operating Junction Temperature Plastic Packages . . . . . . . . . 150C
Storage Temperature Range . . . . . . . . . . . . . . . . . . -65C to +150C
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
Open-Loop DC Electrical Specifications
V
S
= 15V, R
L
= 150
, T
A
= 25C unless otherwise specified
PARAMETER
DESCRIPTION
CONDITIONS
TEMP
LIMITS
UNITS
MIN
TYP
MAX
V
OS
Input Offset Voltage
V
S
= 5V, 15V
25C
2
10
mV
TC V
OS
Average Offset Voltage Drift (Note 1)
Full
10
V/C
+I
IN
+Input Current
V
S
= 5V, 15V
25C
0.5
5
A
-I
IN
-Input Current
V
S
= 5V, 15V
25C
5
20
A
CMRR
Common Mode Rejection Ratio (Note 2)
V
S
= 5V, 15V
25C
55
62
dB
-ICMR
-Input Current Common
Mode Rejection (Note 2)
V
S
= 5V, 15V
25C
0.1
2
A/V
PSRR
Power Supply Rejection Ratio (Note 3)
25C
65
72
dB
-IPSR
-Input Current Power Supply Rejection
(Note 3)
25C
0.1
2
A/V
R
OL
Transimpedance (Note 4)
V
S
= 15V
25C
500
2000
k
R
L
= 400
V
S
= 5V
25C
500
1200
k
R
L
= 150
+R
IN
+Input Resistance
25C
2.0
5.0
M
+C
IN
+Input Capacitance
25C
2.5
pF
CMIR
Common Mode Input Range
V
S
= 15V
25C
12.6
13.2
V
V
S
= 5V
25C
2.6
3.2
V
V
O
Output Voltage Swing
R
L
= 400
, V
S
= 15V
25C
12
13.5
V
R
L
= 150
, V
S
= 15V
25C
11.4
V
R
L
= 150
, V
S
= 5V
25C
3.0
3.7
V
I
SC
Output Short Circuit Current (Note 5)
V
S
= 5V, V
S
= 15V
25C
50
80
130
mA
I
S
Supply Current
V
S
= 15V, V
S
= 5V
25C
7.5
10.0
mA
I
S
, OFF
Supply Current Disabled, Pin 8 = 0V
25C
7.3
10.0
mA
I
OUT
, OFF
Output Current Disabled, Pin 8 = 0V
A
V
= +1
25C
2.0
50.0
A
V
IH
DISABLE Pin Voltage for
Output Enabled (Note 6)
25C
2.0
V
V
IL
DISABLE Pin Threshold for Output Disabled
25C
0.8
V
EL2166
3
NOTES:
1. All AC tests are performed on a "warmed up" part, except for Slew Rate, which is pulse tested.
2. Slew Rate is with V
OUT
from +10V to -10V and measured at the 25% and 75% points.
3. DC offset from -0.714V through +0.714V, AC amplitude 286 mV
P-P
, f = 3.58MHz.
4. Disable/Enable time is defined as the time from when the logic signal is applied to the DISABLE pin to when the output voltage has gone 50%
of the way from its initial to its final value.
I
DIS
, ON
DISABLE Pin Input Current, Pin 8 = +5V
25C
70
150
A
I
DIS
, OFF
DISABLE Pin Input Current, Pin 8 = 0V
25C
-150
-60
A
NOTES:
1. Measured from T
MIN
to T
MAX
.
2. V
CM
= 12.6V for V
S
= 15V and T
A
= 25C. V
CM
= 2.6V for V
S
= 5V and T
A
= 25C.
3. The supplies are moved from 5V to 15V.
4. V
OUT
= 7V for V
S
= 15V, and V
OUT
= 2V for V
S
= 5V.
5. A heat sink is required to keep junction temperature below absolute maximum when an output is shorted.
6. The EL2166 will remain ENABLED if pin 8 is either left unconnected or VIH is applied to pin 8.
Open-Loop DC Electrical Specifications
V
S
= 15V, R
L
= 150
, T
A
= 25C unless otherwise specified (Continued)
PARAMETER
DESCRIPTION
CONDITIONS
TEMP
LIMITS
UNITS
MIN
TYP
MAX
Closed-Loop AC Electrical Specifications
V
S
= 15V, A
V
= +2, R
F
= 560
, R
L
= 150
, T
A
= 25C unless otherwise noted
PARAMETER
DESCRIPTION
CONDITIONS
LIMITS
UNITS
MIN
TYP
MAX
BW
-3dB Bandwidth (Note 1)
V
S
= 15V, A
V
= +2
110
MHz
V
S
= 15V, A
V
= +1
115
MHz
V
S
= 5V, A
V
= +2
95
MHz
V
S
= 5V, A
V
= +1
100
MHz
SR
Slew Rate (Note 1)(Note 2)
R
L
= 400
1000
1500
V/s
t
R
, t
F
Rise Time, Fall Time (Note 1)
V
OUT
= 500mV
3.2
ns
t
PD
Propagation Delay (Note 1)
4.3
ns
OS
Overshoot (Note 1)
V
OUT
= 500mV
7
%
t
S
0.1% Settling Time (Note 1)
V
OUT
= 10V
35
ns
A
V
= 1, R
L
= 1k
dG
Differential Gain (Note 1)(Note 3)
R
L
= 150
, V
S
= 15V
0.025
%
R
L
= 150
, V
S
= 5V
0.05
%
R
L
= 500
, V
S
= 15V
0.01
%
R
L
= 500
, V
S
= 5V
0.01
%
dP
Differential Phase (Note 1)(Note 3)
R
L
= 150
, V
S
= 15V
0.04
deg ()
R
L
= 150
, V
S
= 5V
0.02
deg ()
R
L
= 500
, V
S
= 15V
0.01
deg ()
R
L
= 500
, V
S
= 5V
0.01
deg ()
t
DIS
Disable/Enable Time (Note 4)
75
ns
EL2166
4
Typical Performance Curves
Non-Inverting Frequency
Response (Gain)
Non-Inverting Frequency
Response (Phase)
Frequency Response
for Various R
L
Frequency Response for
Various R
F
and R
G
Inverting Frequency
Response (Phase)
Inverting Frequency
Response (Gain)
3dB Bandwidth vs Supply
Voltage for A
V
= -1
Peaking vs Supply Voltage
for A
V
= -1
3dB Bandwidth vs
Temperature for A
V
= - 1
EL2166
5
Typical Performance Curves
(Continued)
3dB Bandwidth vs Supply
Voltage for A
V
= +1
Peaking vs Supply Voltage
for A
V
= +1
3dB Bandwidth vs
Temperature for A
V
= +1
3dB Bandwidth vs Supply
Voltage for A
V
= +2
Peaking vs Supply Voltage
for A
V
= +2
3dB Bandwidth vs
Temperature for A
V
= +2
3dB Bandwidth vs Supply
Voltage for A
V
= +10
Peaking vs Supply Voltage
for A
V
= +10
3dB Bandwidth vs
Temperature for A
V
= +10
EL2166
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