1
FN7028
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.
EL2030
120MHz Current Feedback Amplifier
The EL2030 is a very fast, wide
bandwidth amplifier optimized for
gains between -10 and +10. Built using
the Elantec 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.
Due to its wide operating supply range (15V) and extremely
high slew rate of 2000V/s, the EL2030 drives 10V into
200
at a frequency of 30MHz, while achieving 110MHz of
small signal bandwidth at A
V
= +2. This bandwidth is still
95MHz for a gain of +10. On 5V supplies the amplifier
maintains a 90MHz bandwidth for A
V
= +2. When used as a
unity gain buffer, the EL2030 has a 120MHz bandwidth with
the gain precision and low distortion of closed loop buffers.
The EL2030 features extremely low differential gain and
phase, a low noise topology that reduces noise by a factor of
2 over competing amplifiers, and settling time of 40ns to
0.25% for a 10V step. The output is short circuit protected. In
addition, datasheet limits are guaranteed for 5V and 15V
supplies.
Elantec's products and facilities comply with applicable
quality specifications. See Elantec document, QRA-1:
Processing, Monolithic Integrated Circuits.
Features
-3dB bandwidth = 120MHz, A
V
= 1
-3dB bandwidth = 110MHz, A
V
= 2
0.01% differential gain and 0.01 differential phase (NTSC,
PAL)
0.05% differential gain and 0.02 differential phase
(HDTV)
Slew rate 2000V/s
65mA output current
Drives 10V into 200
load
Characterized at 5V and 15V
Low voltage noise
Current mode feedback
Settling time of 40ns to 0.25% for a 10V step
Output short circuit protected
Low cost
Applications
Video gain block
Video distribution amplifier
HDTV amplifier
Residue amplifiers in ADC
Current to voltage converter
Coax cable driver
Ordering Information
PART NUMBER
TEMP. RANGE
PACKAGE
PKG. NO.
EL2030CN
-40C to +85C
8-Pin PDIP
MDP0031
EL2030CM
-40C to +85C
20-Pin SOL
MDP0027
Pinouts
EL2030
(8-PIN PDIP)
TOP VIEW
EL2030
(20-PIN SOL)
TOP VIEW
NOTE: Non-Designated pins are no connects and are not electrically connected internally. Manufactured under U.S. Patent No. 4,893,091.
Data Sheet
December 1995, Rev. F
OBS
OLE
TE P
ROD
UCT
NO R
ECO
MME
NDE
D RE
PLA
CEM
ENT
cont
act o
ur Te
chni
cal S
uppo
rt Ce
nter
at
1-88
8-IN
TER
SIL o
r ww
w.in
tersi
l.com
/tsc
2
Absolute Maximum Ratings
(T
A
= 25C)
V
S
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . 18V or 36V
V
IN
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15V or V
S
V
IN
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . .6V
P
D
Maximum Power Dissipation . . . . . . . . . . . . . . . . See Curves
I
IN
Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
I
OP
Peak Output Current . . . . . . . . . . . . . .Short Circuit Protected
Output Short Circuit Duration . . . . . . . . . . . . . . . . . . . . . Continuous
A heat sink is required to keep the junction temperature below absolute
maximum when the output is shorted.
T
A
Operating Temperature Range . . . . . . . . . . . . -40C to +85C
T
J
Operating Junction Temperature
Plastic Packages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150C
T
ST
Storage Temperature . . . . . . . . . . . . . . . . . . -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
= 200
, unless otherwise specified
PARAMETER
DESCRIPTION
CONDITION
TEMP
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
V
S
= 15V
25C
10
20
mV
T
MIN
, T
MAX
30
mV
V
S
= 5V
25C
5
10
mV
T
MIN
, T
MAX
15
mV
V
OS
/T
Offset Voltage Drift
25
V/C
+I
IN
+Input Current
V
S
= 5V, 15V
25C
5
15
A
T
MIN
, T
MAX
25
A
-I
IN
-Input Current
V
S
= 5V, 15V
25C
10
40
A
T
MIN
, T
MAX
50
A
+R
IN
+Input Resistance
Full
1.1
2.0
M
C
IN
Input Capacitance
25C
1
pF
CMRR
Common Mode Rejection Ratio (Note 1)
V
S
= 5V, 15V
Full
50
60
dB
-ICMR
Input Current Common Mode Rejection (Note 1)
25C
5
10
A/V
T
MIN
, T
MAX
20
A/V
PSRR
Power Supply Rejection Ratio (Note 2)
Full
60
70
dB
+IPSR
+Input Current Power Supply Rejection (Note 2)
25C
0.1
0.5
A/V
T
MIN
, T
MAX
1.0
A/V
-IPSR
-Input Current Power Supply Rejection (Note 2)
25C
0.5
5.0
A/V
T
MIN
, T
MAX
8.0
A/V
R
OL
Transimpedance
(V
OUT
/(-I
IN
))
V
OUT
= 10V
V
S
= 15V
25C
88
150
V/mA
T
MIN
, T
MAX
75
V/mA
V
OUT
= 2.5V (Note 3)
V
S
= 5V
25C
80
120
V/mA
T
MIN
, T
MAX
70
V/mA
A
VOL
Open Loop DC
Voltage Gain
V
OUT
= 10V
V
S
= 15V
Full
60
70
dB
V
OUT
= 2.5V (Note 3)
V
S
= 5V
Full
56
65
dB
V
O
Output Voltage Swing (Note 3)
V
S
= 15V
Full
12
13
V
V
S
= 5V
Full
3
3.5
V
I
OUT
Output Current (Note 4)
V
S
= 15V
Full
60
65
mA
V
S
= 5V
Full
30
35
mA
EL2030
3
R
OUT
Output Resistance
25C
5
I
S
Quiescent Supply Current
Full
15
21
mA
I
SC
Short Circuit Current
25C
85
mA
NOTES:
1. V
CM
= 10V for V
S
= 15V. For V
S
= 5V, V
CM
= 2.5V.
2. V
OS
is measured at V
S
= 4.5V and at V
S
= 18V. Both supplies are changed simultaneously.
3. R
L
= 100
.
4. For V
S
= 15V, V
OUT
= 10V. For V
S
5V, V
OUT
= 2.5V.
Open Loop DC Electrical Specifications
V
S
= 15V, R
L
= 200
, unless otherwise specified (Continued)
PARAMETER
DESCRIPTION
CONDITION
TEMP
MIN
TYP
MAX
UNITS
Closed Loop AC Electrical Characteristics
V
S
= 15V, A
V
= +2, R
F
= 820
, R
G
= 820
and R
L
= 200
PARAMETER
DESCRIPTION
CONDITION
TEMP
MIN
TYP
MAX
UNITS
SR
Slew Rate (Note 1)
25C
1200
2000
V/s
FPBW
Full Power Bandwidth (Note 2)
25C
19
31.8
MHz
t
R
, t
F
Rise Time. Fall Time
V
PP
= 250mV
25C
3
ns
t
S
Settling Time to 0.25% for 10V step (Note 3)
25C
40
ns
G
Differential Gain (Note 4)
25C
0.01
% p-p
Differential Phase (Note 4)
25C
0.01
p-p
eN
Input Spot Noise at 1kHz R
G
= 101; R
F
= 909
25C
4
NOTES:
1. V
O
= 10V, tested at V
O
= 5. See test circuit.
2. Full Power Bandwidth is specified based on Slew Rate measurement FPBW = SR/2
V
P
.
3. Settling Time measurement techniques are shown in: "Take The Guesswork Out of Settling Time Measurements', EDN, September 19, 1985.
Available from the factory upon request.
4. NTSC (3.58MHz) and PAL (4.43MHz).
nV
Hz
/
EL2030
4
Typical Performance Curves
FIGURE 1. NTSC VIDEO DIFFERENTIAL GAIN AND PHASE TEST SET-UP
Differential Gain and Phase
vs Load Resistance, Gain = +1
Differential Gain and Phase
vs Load Capacitance, Gain = +1
Differential Gain and Phase
vs Supply Voltage, Gain = +1
Differential Gain and Phase
vs Supply Voltage, Gain = +2
Differential Gain and Phase
vs Load Capacitance, Gain = +2
Differential Gain and Phase
vs Load Resistance, Gain = +2
EL2030
5
Typical Performance Curves
(Continued)
Differential Gain Error
vs Frequency for Various
DC Output Levels
Differential Phase Error
vs Frequency for Various
DC Output Levels
Slew Rate vs Supply Voltage
Bandwidth and Peaking vs R
F
for
A
V
= +1
Risetime and Overshoot vs R
F
for
A
V
= +1
FIGURE 2. HDTV AND WIDEBAND VIDEO DIFFERENTIAL GAIN AND PHASE TEST SET-UP
EL2030
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