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EL5157 Schematic ( PDF Datasheet ) - Intersil Corporation

Teilenummer EL5157
Beschreibung (EL5156 - EL5257) 600MHz Amplifiers
Hersteller Intersil Corporation
Logo Intersil Corporation Logo 




Gesamt 12 Seiten
EL5157 Datasheet, Funktion
®
PRELIMINARY
Data Sheet
EL5156, EL5157, EL5256, EL5257
July 2, 2004
FN7386.2
<1mV Voltage Offset, 600MHz Amplifiers
The EL5156, EL5157, EL5256, and
EL5257 are 600MHz bandwidth -3dB
voltage mode feedback amplifiers with
DC accuracy of <0.01%, 1mV offsets and 40kV/V open loop
gains. These amplifiers are ideally suited for applications
ranging from precision measurement instrumentation to high
speed video and monitor applications demanding the very
highest linearity at very high frequency. Capable of operating
with as little as 6.0mA of current from a single supply ranging
from 5V to 12V and dual supplies ranging from ±2.5V to
±5.0V these amplifiers are also well suited for handheld,
portable and battery-powered equipment. With their
capability to output as much as 140mA, member of this
family is comfortable with demanding load conditions.
Single amplifiers are available in SOT-23 packages and
duals in a 10-pin MSOP package for applications where
board space is critical. Additionally, singles and duals are
available in the industry-standard 8-pin SO package. All
parts operate over the industrial temperature range of -40°C
to +85°C.
Orderingwww.DataSheet4U.com Information
PART
NUMBER
PACKAGE TAPE & REEL PKG. DWG. #
EL5156IS
8-Pin SO
-
MDP0027
EL5156IS-T7
8-Pin SO
7” MDP0027
EL5156IS-T13
8-Pin SO
13”
MDP0027
EL5157IW-T7 5-Pin SOT-23 7” (3K pcs)
MDP0038
EL5157IW-T7A 5-Pin SOT-23 7” (250 pcs)
MDP0038
EL5256IY
10-Pin MSOP
-
MDP0043
EL5256IY-T7 10-Pin MSOP
7”
MDP0043
EL5256IY-T13 10-Pin MSOP
13”
MDP0043
EL5257IS
8-Pin SO
-
MDP0027
EL5257IS-T7
8-Pin SO
7” MDP0027
EL5257IS-T13
8-Pin SO
13”
MDP0027
EL5257IY
8-Pin MSOP
-
MDP0043
EL5257IY-T7 8-Pin MSOP
7”
MDP0043
EL5257IY-T13 8-Pin MSOP
13”
MDP0043
Features
• 600MHz -3dB bandwidth, 240MHz 0.1dB bandwidth
• 700V/µs slew rate
• <1mV input offset
• Very high open loop gains 92dB
• Low supply current = 6mA
• 140mA output current
• Single supplies from 5V to 12V
• Dual supplies from ±2.5V to ±5V
• Fast disable on the EL5156 and EL5256
• Low cost
Applications
• Imaging
• Instrumentation
• Video
• Communications devices
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2004. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners.






EL5157 Datasheet, Funktion
EL5156, EL5157, EL5256, EL5257
Typical Performance Curves (Continued)
4
3
AV=+1
CL=0.2pF
2
1
0
-1
RL=500
RL=300
-2 RL=150
-3
-4
-5
-6
100K
1M
10M
100M
FREQUENCY (Hz)
1G
FIGURE 11. SMALL SIGNAL FREQUENCY RESPONSE FOR
VARIOUS RL
5
4
3
AV=+2
RL=500
CL=4.7pF
2 RF=500
1
12pF
8.2pF
4.7pF
0
-1 0.2pF
-2 0pF
-3
-4
-5
100K 1M 10M
FREQUENCY (Hz)
100M 200M
FIGURE 13. SMALL SIGNAL FREQUENCY RESPONSE FOR
VARIOUS CIN
5
4
AV=+1
CL=4.7pF
3
500
2
1
0
-1 200
-2 100
-3 50
-4
-5
100K
1M
10M
100M
FREQUENCY (Hz)
1G
FIGURE 12. EL5256 SMALL SIGNAL FREQUENCY
RESPONSE FOR VARIOUS RL
4 AV=+5
3 CL=4.7pF
2
RL=500
RF=102
1
68pF
47pF
0
-1 22pF
-2 4.7pF
-3 0pF
-4
-5
100K
1M 10M
FREQUENCY (Hz)
100M 200M
FIGURE 14. SMALL SIGNAL FREQUENCY RESPONSE FOR
VARIOUS CIN
4
3 VS=±5V
2
AV=+2
RL=150
1 CL=4.7pF
RF=RG=1k
0
-1 350
-2 562
-3
500
250
-4
-5
-6
100K
1M
10M
100M
FREQUENCY (Hz)
1G
FIGURE 15. SMALL SIGNAL FREQUENCY RESPONSE FOR
VARIOUS RF AND RG
6
5
4
AV=+2
CL=4.7pF
RL=500
3
RF=RG=3k
2k
2 1k
1 500
0 200
-1
-2
-3
-4
100K
1M
10M
100M
1G
FREQUENCY (Hz)
FIGURE 16. EL5256 SMALL SIGNAL FREQUENCY
RESPONSE FOR VARIOUS RF/RG
6

6 Page









EL5157 pdf, datenblatt
EL5156, EL5157, EL5256, EL5257
The maximum power dissipation allowed in a package is
determined according to:
PDMAX
=
T----J---M-----A----X----------T----A---M-----A----X--
ΘJA
Where:
TJMAX = Maximum junction temperature
TAMAX = Maximum ambient temperature
θJA = Thermal resistance of the package
The maximum power dissipation actually produced by an IC
is the total quiescent supply current times the total power
supply voltage, plus the power in the IC due to the load, or:
For sourcing:
n
PDMAX = VS × ISMAX +
(
VS
VO
U
T
i
)
×
V-----O----U----T----i
RLi
i=1
For sinking:
n
PDMAX = VS × ISMAX + (VOUTi VS) × ILOADi
i=1
Where:
VS = Supply voltage
ISMAX = Maximum quiescent supply current
VOUT = Maximum output voltage of the application
RLOAD = Load resistance tied to ground
ILOAD = Load current
N = number of amplifiers (Max = 2)
By setting the two PDMAX equations equal to each other, we
can solve the output current and RLOAD to avoid the device
overheat.
Power Supply Bypassing and Printed Circuit
Board Layout
As with any high frequency device, a good printed circuit
board layout is necessary for optimum performance. Lead
lengths should be as sort as possible. The power supply pin
must be well bypassed to reduce the risk of oscillation. For
normal single supply operation, where the VS- pin is
connected to the ground plane, a single 4.7µF tantalum
capacitor in parallel with a 0.1µF ceramic capacitor from VS+
to GND will suffice. This same capacitor combination should
be placed at each supply pin to ground if split supplies are to
be used. In this case, the VS- pin becomes the negative
supply rail.
For good AC performance, parasitic capacitance should be
kept to minimum. Use of wire wound resistors should be
avoided because of their additional series inductance. Use
of sockets should also be avoided if possible. Sockets add
parasitic inductance and capacitance that can result in
compromised performance. Minimizing parasitic capacitance
at the amplifier's inverting input pin is very important. The
feedback resistor should be placed very close to the
inverting input pin. Strip line design techniques are
recommended for the signal traces.
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
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