Elantec EL5393CS-T7 Triple 300mhz current feedback amplifier Datasheet

Triple 300MHz Current Feedback Amplifier
Features
General Description
• 300MHz -3dB bandwidth
• 4mA supply current (per amplifier)
• Single and dual supply operation,
from 5V to 10V
• Available in 16-pin QSOP package
• Single (EL5193C) and Dual
(EL5293C) available
• High speed, 1GHz product
available (EL5191C)
• High speed, 6mA, 600MHz
product available (EL5192C,
EL5292C, and EL5392C
The EL5393C is a triple current feedback amplifier with a bandwidth
of 300MHz. This makes these amplifiers ideal for today’s high speed
video and monitor applications.
Applications
Pin Configurations
•
•
•
•
•
•
•
•
Battery-powered Equipment
Hand-held, Portable Devices
Video Amplifiers
Cable Drivers
RGB Amplifiers
Test Equipment
Instrumentation
Current to Voltage Converters
With a supply current of just 4mA per amplifier and the ability to run
from a single supply voltage from 5V to 10V, these amplifiers are also
ideal for hand held, portable or battery powered equipment.
For applications where board space is critical, the EL5393C is offered
in 16-pin QSOP package, as well as an industry standard 16-pin SO.
The EL5393C operates over the industrial temperature range of -40°C
to +85°C.
16-Pin SO & QSOP
Ordering Information
Package
Tape &
Reel
EL5393CS
16-Pin SO
-
MDP0027
EL5393CS-T7
16-Pin SO
7”
MDP0027
EL5393CS-T13
16-Pin SO
13”
MDP0027
Part No
EL5393C
EL5393C
Outline #
EL5393CU
16-Pin QSOP
-
MDP0040
EL5393CU-T13
16-Pin QSOP
13”
MDP0040
INA+
1
NC*
2
VS-
3
NC*
4
INB+
5
NC
6
NC*
7
INC+
8
16 INA+
15 OUTA
14 VS+
+
-
13 OUTB
12 INB11 NC
+
-
10 OUTC
9
INC-
EL5393CS, EL5393CU
April 26, 2001
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.
© 2001 Elantec Semiconductor, Inc.
EL5393C
EL5393C
Triple 300MHz Current Feedback Amplifier
Absolute Maximum Ratings (T
A
= 25°C)
Values beyond absolute maximum ratings can cause the device to be prematurely damaged. Absolute maximum ratings are stress ratings only and
functional device operation is not implied.
11V
Supply Voltage between VS+ and VSMaximum Continuous Output Current
50mA
Operating Junction Temperature
Power Dissipation
Pin Voltages
Storage Temperature
Operating Temperature
125°C
See Curves
VS- - 0.5V to VS+ +0.5V
-65°C to +150°C
-40°C to +85°C
Important Note:
All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are at the
specified temperature and are pulsed tests, therefore: TJ = TC = TA.
Electrical Characteristics
VS+ = +5V, VS- = -5V, RF = 750Ω for AV = 1, RF = 375Ω for AV = 2, RL = 150Ω, TA = 25°C unless otherwise specified.
Parameter
Description
Conditions
Min
Typ
Max
Unit
AC Performance
BW
-3dB Bandwidth
AV = +1
300
MHz
AV = +2
200
MHz
20
MHz
2200
V/µs
BW1
0.1dB Bandwidth
SR
Slew Rate
VO=-2.5V to +2.5V, AV = +2
ts
0.1% Settling Time
VOUT = -2.5V to +2.5V, AV = -1
12
ns
CS
Channel Separation
f = 5MHz
60
dB
en
Input Voltage Noise
4.4
nV/√Hz
in-
IN- input current noise
17
pA/√Hz
in+
IN+ input current noise
dG
Differential Gain Error
dP
Differential Phase Error
[1]
[1]
2000
50
pA/√Hz
AV = +2
0.03
%
AV = +2
0.04
°
DC Performance
VOS
Offset Voltage
TCVOS
Input Offset Voltage Temperature Coefficient
ROL
Transimpedance
-10
Measured from TMIN to TMAX
1
10
mV
5
µV/°C
300
600
kΩ
Input Characteristics
CMIR
Common Mode Input Range
±3
±3.3
V
CMRR
Common Mode Rejection Ratio
42
50
dB
+IIN
+ Input Current
-60
1
60
µA
-IIN
- Input Current
-35
1
35
µA
RIN
Input Resistance
45
kΩ
CIN
Input Capacitance
0.5
pF
V
Output Characteristics
VO
IOUT
Output Voltage Swing
RL = 150Ω to GND
±3.4
±3.7
RL = 1kΩ to GND
±3.8
±4.0
V
Output Current
RL = 10Ω to GND
95
120
mA
Supply
IsON
Supply Current
No Load, VIN = 0V
3
4
PSRR
Power Supply Rejection Ratio
DC, VS = ±4.75V to ±5.25V
55
75
-IPSR
- Input Current Power Supply Rejection
DC, VS = ±4.75V to ±5.25V
-2
1. Standard NTSC test, AC signal amplitude = 286mVp-p, f = 3.58MHz
2
5
mA
2
µA/V
dB
Typical Performance Curves
Non-Inverting Frequency Response (Phase)
Non-Inverting Frequency Response (Gain)
90
6
AV=1
0
2
AV=2
AV=2
-2
Phase (°)
Normalized Magnitude (dB)
AV=1
AV=5
-6
-90
AV=5
-180
AV=10
AV=10
-270
-10
RF=750Ω
RL=150Ω
-14
1M
RF=750Ω
RL=150Ω
10M
100M
-360
1M
1G
10M
Inverting Frequency Response (Gain)
90
AV=-1
2
AV=-1
AV=-2
0
-2
Phase (°)
Normalized Magnitude (dB)
1G
Inverting Frequency Response (Phase)
6
AV=-3
-90
AV=-2
AV=-3
-180
-6
-10
-270
RF=500Ω
RL=150Ω
-14
1M
RF=500Ω
RL=150Ω
10M
100M
-360
1M
1G
10M
Frequency Response for Various CIN6
6
Normalized Magnitude (dB)
2pF added
1pF added
2
-2
-10
1M
1G
Frequency Response for Various RL
10
-6
100M
Frequency (Hz)
Frequency (Hz)
Normalized Magnitude (dB)
100M
Frequency (Hz)
Frequency (Hz)
0pF added
AV=2
RF=500Ω
RL=150Ω
100M
-6
-14
1M
1G
RL=150Ω
RL=500Ω
-2
-10
10M
RL=100Ω
2
AV=2
RF=500Ω
10M
100M
Frequency (Hz)
Frequency (Hz)
3
1G
EL5393C
EL5393C
Triple 300MHz Current Feedback Amplifier
Triple 300MHz Current Feedback Amplifier
Typical Performance Curves
Frequency Response for Various CL
Frequency Response for Various RF
6
AV=2
RL=150Ω
RF=RG=500Ω
10
33pF
340Ω
Normalized Magnitude (dB)
Normalized Magnitude (dB)
14
22pF
6
15pF
2
8pF
-2
10M
620Ω
-2
750Ω
-6
1.2kΩ
AV=2
RG=RF
RL=150Ω
-10
100M
-14
1M
1G
10M
Frequency (Hz)
100M
1G
Frequency (Hz)
Frequency Response for Various Common-mode
Input Voltages
Group Delay vs Frequency
3.5
6
VCM=3V
3
Normalized Magnitude (dB)
AV=2
RF=500Ω
2.5
Delay (ns)
475Ω
2
0pF
-6
1M
2
1.5
AV=1
RF=750Ω
1
-2
VCM=-3V
-6
AV=2
RF=500Ω
RL=150Ω
-10
0
1M
10M
100M
-14
1M
1G
VCM=0V
2
0.5
10M
100M
1G
Frequency (Hz)
Frequency (Hz)
Transimpedance (ROL) vs Frequency
PSRR and CMRR vs Frequency
20
10M
0
Phase
PSRR+
0
1M
-180
10k
Phase (°)
100k
PSRR/CMRR (dB)
-90
Magnitude (Ω)
EL5393C
EL5393C
-270
Gain
1k
-20
PSRR-40
CMRR
-60
-360
100
1k
10k
100k
1M
10M
Frequency (Hz)
100M
-80
10k
1G
4
100k
1M
10M
Frequency (Hz)
100M
1G
Typical Performance Curves
-3dB Bandwidth vs Supply Voltage for Inverting
Gains
-3dB Bandwidth vs Supply Voltage for Noninverting Gains
250
400
RF=750Ω
RL=150Ω
AV=1
200
300
-3dB Bandwidth (MHz)
-3dB Bandwidth (MHz)
350
250
200
AV=2
150
AV=5
100
AV=-1
150
AV=-2
100
AV=-5
50
50
RF=500Ω
RL=150Ω
AV=10
0
5
0
7
6
8
9
5
10
6
7
9
10
Peaking vs Supply Voltage for Inverting Gains
Peaking vs Supply Voltage for Non-inverting Gains
2.5
4
3.5
RF=750Ω
RL=150Ω
AV=1
RF=500Ω
RL=150Ω
2
Peaking (dB)
3
Peaking (dB)
8
Total Supply Voltage (V)
Total Supply Voltage (V)
2.5
2
1.5
AV=2
1
1.5
AV=-1
1
AV=-2
0.5
0.5
AV=10
0
5
6
7
8
9
0
5
10
6
7
-3dB Bandwidth vs Temperature for Non-inverting
Gains
AV=1
200
-3dB Bandwidth (MHz)
-3dB Bandwidth (MHz)
400
300
0
-40
10
250
RF=750Ω
RL=150Ω
100
9
-3dB Bandwidth vs Temperature for Inverting
Gains
500
200
8
Total Supply Voltage (V)
Total Supply Voltage (V)
AV=2
AV=5
AV=-2
150
100
AV=-5
50
RF=500Ω
RL=150Ω
AV=10
10
AV=-1
60
110
0
-40
160
Ambient Temperature (°C)
10
60
Ambient Temperature (°C)
5
110
160
EL5393C
EL5393C
Triple 300MHz Current Feedback Amplifier
Triple 300MHz Current Feedback Amplifier
Typical Performance Curves
Peaking vs Temperature
Voltage and Current Noise vs Frequency
2.5
1000
RL=150Ω
2
Voltage Noise (nV/√Hz)
, Current Noise (pA/√Hz)
AV=1
Peaking (dB)
1.5
1
0.5
AV=-1
100
in+
in-
10
en
0
-0.5
-40
10
110
60
1
100
160
1000
10k
100k
Frequency ()
Ambient Temperature (°C)
100
10
10
8
Supply Current (mA)
Output Impedance (Ω)
1M
10M
Supply Current vs Supply Voltage
Closed Loop Output Impedance vs Frequency
1
0.1
0.01
6
4
2
0.001
0
100
1k
10k
100k
1M
Frequency (Hz)
10M
100M
0
1G
2nd and 3rd Harmonic Distortion vs Frequency
2
4
6
8
Supply Voltage (V)
10
12
Two-tone 3rd Order
Input Referred Intermodulation Intercept (IIP3)
-20
25
AV=+2
VOUT=2VP-P
RL=100Ω
20
Input Power Intercept (dBm)
-30
Harmonic Distortion (dBc)
EL5393C
EL5393C
-40
2nd Order
Distortion
-50
-60
3rd Order
Distortion
-70
-80
15
10
5
0
-5
-90
1
10
Frequency (MHz)
AV=+2
RL=150Ω
AV=+2
RL=100Ω
-10
10
100
100
Frequency (MHz)
6
Typical Performance Curves
Differential Gain/Phase vs DC Input
Voltage at 3.58MHz
Differential Gain/Phase vs DC Input
Voltage at 3.58MHz
0.03
0.04
AV=2
RF=RG=500Ω
RL=150Ω
dG (%) or dP (°)
0.01
dP
AV=1
RF=750Ω
RL=500Ω
0.03
0.02
0
dG (%) or dP (°)
0.02
dG
-0.01
-0.02
0.01
dG
0
-0.01
-0.03
-0.02
-0.04
-0.03
-0.05
dP
-0.04
-1
-0.5
0
0.5
1
-1
-0.5
DC Input Voltage
0
0.5
1
DC Input Voltage
Output Voltage Swing vs Frequency
THD<1%
Output Voltage Swing vs Frequency
THD<0.1%
10
10
8
8
Output Voltage Swing (VPP)
Output Voltage Swing (VPP)
RL=500Ω
RL=150Ω
6
4
2
RL=500Ω
6
RL=150Ω
4
2
AV=2
AV=2
0
0
1
10
Frequency (MHz)
100
1
Small Signal Step Response
10
Frequency (MHz)
100
Large Signal Step Response
VS=±5V
RL=150Ω
AV=2
RF=RG=500Ω
VS=±5V
RL=150Ω
AV=2
RF=RG=500Ω
200mV/div
1V/div
10ns/div
10ns/div
7
EL5393C
EL5393C
Triple 300MHz Current Feedback Amplifier
Triple 300MHz Current Feedback Amplifier
Typical Performance Curves
Settling Time vs Settling Accuracy
Transimpedance (RoI) vs Temperature
25
625
AV=2
RF=RG=500Ω
RL=150Ω
VSTEP=5VP-P output
600
15
RoI (kΩ)
Settling Time (ns)
20
10
575
550
5
0
0.01
0.1
525
-40
1
10
Settling Accuracy (%)
110
160
110
160
ICMR and IPSR vs Temperature
90
2
80
PSRR
1.5
ICMR/IPSR (µ A/V)
70
PSRR/CMRR (dB)
60
Die Temperature (°C)
PSRR and CMRR vs Temperature
60
CMRR
50
40
30
ICMR+
1
IPSR
0.5
ICMR-
0
20
10
-40
10
60
110
-0.5
-40
160
10
Die Temperature (°C)
60
Die Temperature (°C)
Offset Voltage vs Temperature
Input Current vs Temperature
2
60
40
Input Current (µ A)
1
VOS (mV)
EL5393C
EL5393C
0
20
IB0
IB+
-20
-1
-40
-2
-40
10
60
110
-60
-40
160
Die Temperature (°C)
10
60
Temperature (°C)
8
110
160
Typical Performance Curves
Positive Input Resistance vs Temperature
Supply Current vs Temperature
60
5
50
Supply Current (mA)
4
RIN+ (kΩ)
40
30
20
3
2
1
10
0
-40
10
60
110
0
-40
160
10
60
110
160
Temperature (°C)
Temperature (°C)
Positive Output Swing vs Temperature for Various
Loads
Negative Output Swing vs Temperature for Various
Loads
4.2
-3.5
4.1
150Ω
-3.6
4
-3.7
3.9
-3.8
VOUT (V)
VOUT (V)
1kΩ
3.8
3.7
-3.9
-4
150Ω
1kΩ
3.6
-4.1
3.5
-40
10
60
110
-4.2
-40
160
10
Temperature (°C)
60
110
160
Temperature (°C)
Output Current vs Temperature
Slew Rate vs Temperature
130
4000
Sink
Slew Rate (V/µ S)
IOUT (mA)
125
Source
120
3500
3000
AV=2
RF=RG=500Ω
RL=150Ω
115
-40
10
60
110
2500
-40
160
Die Temperature (°C)
10
60
Die Temperature (°C)
9
110
160
EL5393C
EL5393C
Triple 300MHz Current Feedback Amplifier
Triple 300MHz Current Feedback Amplifier
Typical Performance Curves
Channel-to-Channel Isolation vs Frequency
Package Power Dissipation vs Ambient Temp.
JEDEC JESD51-3 Low Effective Thermal Conductivity Test Board
0
1
0.9
SO
16
(0.
11
15
0°
0”
C/
)
W
909mW
0.8
Power Dissipation (W)
-20
Gain (dB)
EL5393C
EL5393C
-40
-60
-80
0.7
0.6
633mW
0.5
15
0.4
0.3
QS
OP
1
8° C 6
/W
0.2
0.1
-100
100k
0
1M
10M
100M
400M
0
Frequency (Hz)
25
50
75
100
Ambient Temperature (°C)
10
125
150
Pin Descriptions
EL5393C
SO-16
EL5393C
QSOP-16
Pin Name
1
1
INA+
Function
Equivalent Circuit
Non-inverting input, channel A
VS+
IN+
IN-
VSCircuit 1
2, 4, 7
2, 4, 7
NC
Not connected (leave disconnected)
3
3
VS -
Negative supply
5
5
INB+
6, 11
6, 11
NC
Non-inverting input, channel B
(See circuit 1)
8
8
INC+
Non-inverting input, channel C
(See circuit 1)
9
9
INC-
Inverting input, channel C
(See circuit 1)
10
10
OUTC
Not connected
Output, channel C
VS+
OUT
VSCircuit 2
12
12
INB-
13
13
OUTB
Inverting input, channel B
(See circuit 1)
Output, channel B
14
14
VS +
(See circuit 2)
15
15
OUTA
Output, channel A
(See circuit 2)
16
16
INA-
Inverting input, channel A
(See circuit 1)
Positive supply
11
EL5393C
EL5393C
Triple 300MHz Current Feedback Amplifier
EL5393C
EL5393C
Triple 300MHz Current Feedback Amplifier
Applications Information
Product Description
particularly for the SO package, should be avoided if
possible. Sockets add parasitic inductance and capacitance which will result in additional peaking and
overshoot.
The EL5393C is a current-feedback operational amplifier that offers a wide -3dB bandwidth of 300MHz and a
low supply current of 4mA per amplifier. The EL5393C
works with supply voltages ranging from a single 5V to
10V and they are also capable of swinging to within 1V
of either supply on the output. Because of their currentfeedback topology, the EL5393C does not have the normal gain-bandwidth product associated with voltagefeedback operational amplifiers. Instead, its -3dB bandwidth to remain relatively constant as closed-loop gain is
increased. This combination of high bandwidth and low
power, together with aggressive pricing make the
EL5393C the ideal choice for many low-power/highbandwidth applications such as portable, handheld, or
battery-powered equipment.
Capacitance at the Inverting Input
Any manufacturer’s high-speed voltage- or currentfeedback amplifier can be affected by stray capacitance
at the inverting input. For inverting gains, this parasitic
capacitance has little effect because the inverting input is
a virtual ground, but for non-inverting gains, this capacitance (in conjunction with the feedback and gain
resistors) creates a pole in the feedback path of the
amplifier. This pole, if low enough in frequency, has the
same destabilizing effect as a zero in the forward openloop response. The use of large-value feedback and gain
resistors exacerbates the problem by further lowering
the pole frequency (increasing the possibility of
oscillation.)
For varying bandwidth needs, consider the EL5191C
with 1GHz on a 9mA supply current or the EL5192C
with 600MHz on a 6mA supply current. Versions
include single, dual, and triple amp packages with 5-pin
SOT23, 16-pin QSOP, and 8-pin or 16-pin SO outlines.
The EL5393C has been optimized with a 475Ω feedback
resistor. With the high bandwidth of these amplifiers,
these resistor values might cause stability problems
when combined with parasitic capacitance, thus ground
plane is not recommended around the inverting input pin
of the amplifier.
Power Supply Bypassing and Printed Circuit
Board Layout
As with any high frequency device, good printed circuit
board layout is necessary for optimum performance.
Low impedance ground plane construction is essential.
Surface mount components are recommended, but if
leaded components are used, lead lengths should be as
short as possible. The power supply pins must be well
bypassed to reduce the risk of oscillation. The combination of a 4.7µF tantalum capacitor in parallel with a
0.01µF capacitor has been shown to work well when
placed at each supply pin.
Feedback Resistor Values
The EL5393C has been designed and specified at a gain
of +2 with RF approximately 500Ω. This value of feedback resistor gives 200MHz of -3dB bandwidth at AV=2
with 2dB of peaking. With AV=-2, an RF of approximately 500Ω gives 175MHz of bandwidth with 0.2dB of
peaking. Since the EL5393C is a current-feedback
amplifier, it is also possible to change the value of RF to
get more bandwidth. As seen in the curve of Frequency
Response for Various RF and RG, bandwidth and peaking can be easily modified by varying the value of the
feedback resistor.
For good AC performance, parasitic capacitance should
be kept to a minimum, especially at the inverting input.
(See the Capacitance at the Inverting Input section) Even
when ground plane construction is used, it should be
removed from the area near the inverting input to minimize any stray capacitance at that node. Carbon or
Metal-Film resistors are acceptable with the Metal-Film
resistors giving slightly less peaking and bandwidth
because of additional series inductance. Use of sockets,
Because the EL5393C is a current-feedback amplifier,
its gain-bandwidth product is not a constant for different
closed-loop gains. This feature actually allows the
EL5393C to maintain about the same -3dB bandwidth.
As gain is increased, bandwidth decreases slightly while
12
stability increases. Since the loop stability is improving
with higher closed-loop gains, it becomes possible to
reduce the value of RF below the specified 475Ω and
still retain stability, resulting in only a slight loss of
bandwidth with increased closed-loop gain.
Video performance has also been measured with a 500Ω
load at a gain of +1. Under these conditions, the
EL5393C has dG and dP specifications of 0.03% and
0.04°.
Output Drive Capability
Supply Voltage Range and Single-Supply
Operation
In spite of its low 4mA of supply current, the EL5393C
is capable of providing a minimum of ±95mA of output
current. With a minimum of ±95mA of output drive, the
EL5393C is capable of driving 50Ω loads to both rails,
making it an excellent choice for driving isolation transformers in telecommunications applications.
The EL5393C has been designed to operate with supply
voltages having a span of greater than 5V and less than
10V. In practical terms, this means that the EL5393C
will operate on dual supplies ranging from ±2.5V to
±5V. With single-supply, the EL5393C will operate
from 5V to 10V.
Driving Cables and Capacitive Loads
When used as a cable driver, double termination is
always recommended for reflection-free performance.
For those applications, the back-termination series resistor will decouple the EL5393C from the cable and allow
extensive capacitive drive. However, other applications
may have high capacitive loads without a back-termination resistor. In these applications, a small series resistor
(usually between 5Ω and 50Ω) can be placed in series
with the output to eliminate most peaking. The gain
resistor (RG) can then be chosen to make up for any gain
loss which may be created by this additional resistor at
the output. In many cases it is also possible to simply
increase the value of the feedback resistor (RF) to reduce
the peaking.
As supply voltages continue to decrease, it becomes necessary to provide input and output voltage ranges that
can get as close as possible to the supply voltages. The
EL5393C has an input range which extends to within 2V
of either supply. So, for example, on +5V supplies, the
EL5393C has an input range which spans ±3V. The output range of the EL5393C is also quite large, extending
to within 1V of the supply rail. On a ±5V supply, the
output is therefore capable of swinging from -----4V to
+4V. Single-supply output range is larger because of the
increased negative swing due to the external pull-down
resistor to ground.
Video Performance
For good video performance, an amplifier is required to
maintain the same output impedance and the same frequency response as DC levels are changed at the output.
This is especially difficult when driving a standard video
load of 150Ω, because of the change in output current
with DC level. Previously, good differential gain could
only be achieved by running high idle currents through
the output transistors (to reduce variations in output
impedance.) These currents were typically comparable
to the entire 4mA supply current of each EL5393C
amplifier. Special circuitry has been incorporated in the
EL5393C to reduce the variation of output impedance
with current output. This results in dG and dP specifications of 0.03% and 0.04°, while driving 150Ω at a gain
of 2.
Current Limiting
The EL5393C has no internal current-limiting circuitry.
If the output is shorted, it is possible to exceed the Absolute Maximum Rating for output current or power
dissipation, potentially resulting in the destruction of the
device.
Power Dissipation
With the high output drive capability of the EL5393C, it
is possible to exceed the 125°C Absolute Maximum
junction temperature under certain very high load current conditions. Generally speaking when RL falls below
about 25Ω, it is important to calculate the maximum
junction temperature (TJMAX ) for the application to
determine if power supply voltages, load conditions, or
package type need to be modified for the EL5393C to
13
EL5393C
EL5393C
Triple 300MHz Current Feedback Amplifier
EL5393C
EL5393C
Triple 300MHz Current Feedback Amplifier
remain in the safe operating area. These parameters are
calculated as follows:
T JMA X = T MA X + ( θ JA × n × PD MA X )
where:
70$; 0D[LPXP$PELHQW7HPSHUDWXUH
θ-$ 7KHUPDO5HVLVWDQFHRIWKH3DFNDJH
Q 1XPEHURI$PSOLILHUVLQWKH3DFNDJH
3'0$; 0D[LPXP3RZHU'LVVLSDWLRQRI(DFK
$PSOLILHULQWKH3DFNDJH
PDMAX for each amplifier can be calculated as follows:
V OU T MAX
PD MA X = ( 2 × V S × I SMA X ) + ( V S – V OU T MAX ) × ---------------------------RL
where:
96 6XSSO\9ROWDJH
,60$; 0D[LPXP6XSSO\&XUUHQWRI$
92870$; 0D[LPXP2XWSXW9ROWDJH 5HTXLUHG
5/ /RDG5HVLVWDQFH
14
EL5393C
EL5393C
Triple 300MHz Current Feedback Amplifier
General Disclaimer
Specifications contained in this data sheet are in effect as of the publication date shown. Elantec, Inc. reserves the right to make changes in the circuitry or specifications contained herein at any time without notice. Elantec, Inc. assumes no responsibility for the use of any circuits described
herein and makes no representations that they are free from patent infringement.
April 26, 2001
WARNING - Life Support Policy
Elantec, Inc. products are not authorized for and should not be used
within Life Support Systems without the specific written consent of
Elantec, Inc. Life Support systems are equipment intended to support or sustain life and whose failure to perform when properly used
in accordance with instructions provided can be reasonably
expected to result in significant personal injury or death. Users contemplating application of Elantec, Inc. Products in Life Support
Systems are requested to contact Elantec, Inc. factory headquarters
to establish suitable terms & conditions for these applications. Elantec, Inc.’s warranty is limited to replacement of defective
components and does not cover injury to persons or property or
other consequential damages.
Elantec Semiconductor, Inc.
675 Trade Zone Blvd.
Milpitas, CA 95035
Telephone: (408) 945-1323
(888) ELANTEC
Fax:
(408) 945-9305
European Office: +44-118-977-6020
Japan Technical Center: +81-45-682-5820
15
Printed in U.S.A.
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