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PDF EL2045CS Data sheet ( Hoja de datos )
| Número de pieza | EL2045CS | |
| Descripción | Low-Power 100 MHz Gain-of-2 Stable Operational Amplifier | |
| Fabricantes | Elantec | |
| Logotipo |  |
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EL2045C
Low-Power 100 MHz Gain-of-2 Stable Operational Amplifier
Features
100 MHz gain-bandwidth
product
Gain-of-2 stable
Low supply current
e 5 2 mA at VS e g15V
Wide supply range
e g2V to g18V dual-supply
e 2 5V to 36V single-supply
High slew rate e 275 V ms
Fast settling e 80 ns to 0 1% for
a 10V step
Low differential gain e 0 02% at
AV e a2 RL e 150X
Low differential phase e 0 07 at
AV e a2 RL e 150X
Stable with unlimited capacitive
load
Wide output voltage swing
e g13 6V with VS e g15V
RL e 1000X
e 3 8V 0 3V with VS e a5V
RL e 500X
Applications
Video amplifier
Single-supply amplifier
Active filters integrators
High-speed sample-and-hold
High-speed signal processing
ADC DAC buffer
Pulse RF amplifier
Pin diode receiver
Log amplifier
Photo multiplier amplifier
Difference amplifier
Ordering Information
Part No Temp Range Package Outline
EL2045CN 0 C to a75 C 8-Pin P-DIP MDP0031
EL2045CS 0 C to a75 C 8-Lead SO MDP0027
General Description
The EL2045C is a high speed low power low cost monolithic
operational amplifier built on Elantec’s proprietary comple-
mentary bipolar process The EL2045C is gain-of-2 stable and
features a 275 V ms slew rate and 100 MHz gain-bandwidth
product while requiring only 5 2 mA of supply current
The power supply operating range of the EL2045C is from
g18V down to as little as g2V For single-supply operation
the EL2045C operates from 36V down to as little as 2 5V The
excellent power supply operating range of the EL2045C makes
it an obvious choice for applications on a single a5V or a3V
supply
The EL2045C also features an extremely wide output voltage
swing of g13 6V with VS e g15V and RL e 1000X At g5V
output voltage swing is a wide g3 8V with RL e 500X and
g3 2V with RL e 150X Furthermore for single-supply opera-
tion at a5V output voltage swing is an excellent 0 3V to 3 8V
with RL e 500X
At a gain of a2 the EL2045C has a b3 dB bandwidth of
100 MHz with a phase margin of 50 It can drive unlimited
load capacitance and because of its conventional voltage-feed-
back topology the EL2045C allows the use of reactive or non-
linear elements in its feedback network This versatility com-
bined with low cost and 75 mA of output-current drive makes
the EL2045C an ideal choice for price-sensitive applications re-
quiring low power and high speed
Connection Diagram
DIP and SO Package
2045 – 1
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
1992 Elantec Inc
1 page  
EL2045C
Low-Power 100 MHz Gain-of-2 Stable Operational Amplifier
Typical Performance Curves
(TA e 25 C Rf e 1 kX Cf e 3 pF RL e 1000X AV e a2 unless otherwise specified)
Non-Inverting
Frequency Response
Inverting Frequency Response
Frequency Response for
Various Load Resistances
Open-Loop Gain and
Phase vs Frequency
Output Voltage Swing
vs Frequency
Equivalent Input Noise
CMRR PSRR and Closed-Loop
Output Resistance vs Frequency
2nd and 3rd Harmonic
Distortion vs Frequency
Settling Time vs
Output Voltage Change
Supply Current vs
Supply Voltage
Common-Mode Input Range
vs Supply Voltage
Output Voltage Range
vs Supply Voltage
2045 – 3
5
5 Page 
EL2045C
Low-Power 100 MHz Gain-of-2 Stable Operational Amplifier
EL2045C Macromodel Contd
Connections
subckt M2045
ainput
l binput
l l aVsupply
l l l bVsupply
l l l l output
lllll
32746
Input stage
ie 7 37 0 9mA
r6 36 37 400
r7 38 37 400
rc1 4 30 850
rc2 4 39 850
q1 30 3 36 qp
q2 39 2 38 qpa
ediff 33 0 39 30 1 0
rdiff 33 0 1Meg
Compensation Section
ga 0 34 33 0 1m
rh 34 0 2Meg
ch 34 0 1 5pF
rc 34 40 1K
cc 40 0 1pF
Poles
ep 41 0 40 0 1
rpa 41 42 200
cpa 42 0 2pF
rpb 42 43 200
cpb 43 0 2pF
Output Stage
ios1 7 50 1 0mA
ios2 51 4 1 0mA
q3 4 43 50 qp
q4 7 43 51 qn
q5 7 50 52 qn
q6 4 51 53 qp
ros1 52 6 25
ros2 6 53 25
Power Supply Current
ips 7 4 2 7mA
Models
model qn npn(ise800Eb18 bfe200 tfe0 2nS)
model qpa pnp(ise864Eb18 bfe100 tfe0 2nS)
model qp pnp(ise800Eb18 bfe125 tfe0 2nS)
ends
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet EL2045CS.PDF ] | |
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