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EL2030CN Schematic ( PDF Datasheet ) - Elantec

Teilenummer EL2030CN
Beschreibung 120 MHz Current Feedback Amplifier
Hersteller Elantec
Logo Elantec Logo 




Gesamt 16 Seiten
EL2030CN Datasheet, Funktion
EL2030C
120 MHz Current Feedback Amplifier
Features
 b3 dB bandwidth e 120 MHz
AV e 1
 b3 dB bandwidth e 110 MHz
AV e 2
 0 01% differential gain and
0 01 differential phase (NTSC
PAL)
 0 05% differential gain and
0 02 differential phase (HDTV)
 Slew rate 2000 V ms
 65 mA output current
 Drives g10V into 200X load
 Characterized at g5V and g15V
 Low voltage noise
 Current mode feedback
 Settling time of 40 ns 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 No
EL2030CN
EL2030CM
Temp Range
Package Outline
b40 C to a85 C 8-Pin P-DIP MDP0031
b40 C to a85 C 20-Lead SOL MDP0027
General Description
The EL2030 is a very fast wide bandwidth amplifier optimized
for gains between b10 and a10 Built using the Elantec mono-
lithic Complementary Bipolar process this amplifier uses cur-
rent mode feedback to achieve more bandwidth at a given gain
than a conventional voltage feedback operational amplifier
Due to its wide operating supply range (g15V) and extremely
high slew rate of 2000 V ms the EL2030 drives g10V into 200X
at a frequency of 30 MHz while achieving 110 MHz of small
signal bandwidth at AV e a2 This bandwidth is still 95 MHz
for a gain of a10 On g5V supplies the amplifier maintains a
90 MHz bandwidth for AV e a2 When used as a unity gain
buffer the EL2030 has a 120 MHz 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 40 ns to 0 25% for a
10V step The output is short circuit protected In addition da-
tasheet limits are guaranteed for g5V and g15V supplies
Elantec’s products and facilities comply with applicable quality
specifications See Elantec document QRA-1 Processing
Monolithic Integrated Circuits
Connection Diagrams
Mini DIP
SOL
Top View
2030 – 1
Note Non-designated pins are no connects
and are not electrically connected internally
Manufactured under U S Patent No 4 893 091
Top View
2030 – 3
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
1989 Elantec Inc






EL2030CN Datasheet, Funktion
EL2030C
120 MHz Current Feedback Amplifier
Typical Performance Curves Contd
Risetime and Overshoot vs RF
for AV e a2
Bandwidth and Peaking vs
RF for AV e a2
b3 dB Bandwidth vs
Supply Voltage
Risetime and Overshoot vs
RF for AV e a10
Bandwidth and Peaking vs
RF for AV e a10
Voltage Gain vs Frequency
for AV e a2 various
Capacitive Loads
Risetime and Overshoot vs RF
for AV e a2 VS e g5V
Bandwidth and Peaking vs RF
for AV e a2 VS e a5V
Output Settling Error
vs Time
2030 – 9
6

6 Page









EL2030CN pdf, datenblatt
EL2030C
120 MHz Current Feedback Amplifier
EL2030 Macromodel
Revision A March 1992
Enhancements include PSRR CMRR and Slew Rate Limiting
Connections ainput
l binput
l l aVsupply
l l l bVsupply
l l l l output
lllll
subckt M2030 3 2 7 4 6
Input Stage
e1 10 0 3 0 1 0
vis 10 9 0V
h2 9 12 vxx 1 0
r1 2 11 50
l1 11 12 48nH
iinp 3 0 5mA
iinm 2 0 10mA
r12 3 0 2Meg
Slew Rate Limiting
h1 13 0 vis 600
r2 13 14 1K
d1 14 0 dclamp
d2 0 14 dclamp
High Frequency Pole
e2 30 0 14 0 0 00166666666
l3 30 17 0 5mH
c5 17 0 1pF
r5 17 0 500
Transimpedance Stage
g1 0 18 17 0 1 0
rol 18 0 150K
cdp 18 0 2 8pF
Output Stage
q1 4 18 19 qp
q2 7 18 20 qn
q3 7 19 21 qn
q4 4 20 22 qp
r7 21 6 4
r8 22 6 4
12

12 Page





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