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PDF EL2445CS Data sheet ( Hoja de datos )

Número de pieza EL2445CS
Descripción Dual/Quad Low-Power 100MHz Gain-of-2 Stable Op Amp
Fabricantes Elantec Semiconductor 
Logotipo Elantec Semiconductor Logotipo



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EL2245C, EL2445C
Dual/Quad Low-Power 100MHz Gain-of-2 Stable Op Amp
Features
• 100MHz gain-bandwidth at gain-
of-2
• Gain-of-2 stable
• Low supply current (per amplifier)
= 5.2mA at VS = ±15V
• Wide supply range
= ±2V to ±18V dual-supply
= 2.5V to 36V single-supply
• High slew rate = 275V/µs
• Fast settling = 80ns to 0.1% for a
10V step
• Low differential gain = 0.02% at
AV = +2, RL = 150
• Low differential phase = 0.07° at
AV = +2, RL = 150
• Stable with unlimited capacitive
load
• Wide output voltage swing
=±13.6V with VS = ±15V,
RL = 1000
= 3.8V/0.3V with VS = +5V,
RL = 500
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.
EL2245CN
EL2245CS
EL2445CN
EL2445CS
Temp. Range
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Package
8-Pin P-DIP
8-Lead SO
14-Pin P-DIP
14-Lead SO
Outline #
MDP0031
MDP0027
MDP0031
MDP0027
General Description
The EL2245C/EL2445C are dual and quad versions of the popular
EL2045C. They are high speed, low power, low cost monolithic oper-
ational amplifiers built on Elantec's proprietary complementary
bipolar process. The EL2245C/EL2445C are gain-of-2 stable and fea-
ture a 275V/µs slew rate and 100MHz bandwidth at gain-of-2 while
requiring only 5.2mA of supply current per amplifier.
The power supply operating range of the EL2245C/EL2445C is from
±18V down to as little as ±2V. For single-supply operation, the
EL2245C/EL2445C operate from 36V down to as little as 2.5V. The
excellent power supply operating range of the EL2245C/EL2445C
makes them an obvious choice for applications on a single +5V or
+3V supply.
The EL2245C/EL2445C also feature an extremely wide output volt-
age swing of ±13.6V with VS = ±15V and RL = 1000. At ±5V,
output voltage swing is a wide ±3.8V with RL = 500and ±3.2V with
RL = 150. Furthermore, for single-supply operation at +5V, output
voltage swing is an excellent 0.3V to 3.8V with RL = 500.
At a gain of +2, the EL2245C/EL2445C have a -3dB bandwidth of
100MHz with a phase margin of 50°. They can drive unlimited load
capacitance, and because of their conventional voltage-feedback
topology, the EL2245C/EL2445C allow the use of reactive or non-lin-
ear elements in their feedback network. This versatility combined with
low cost and 75mA of output-current drive make the
EL2245C/EL2445C an ideal choice for price-sensitive applications
requiring low power and high speed.
Connection Diagrams
EL2245CN/CS Dual
EL2445CN/CS Quad
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.

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EL2445CS pdf
EL2245C, EL2445C
Dual/Quad Low-Power 100MHz Gain-of-2 Stable Op Amp
Typical Performance Curves
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
5

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EL2445CS arduino
EL2245C, EL2445C
Dual/Quad Low-Power 100MHz Gain-of-2 Stable Op Amp
good AC performance, parasitic capacitances should be
kept to a minimum at both inputs and at the output.
Resistor values should be kept under 5kbecause of the
RC time constants associated with the parasitic capaci-
tance. Metal-film and carbon resistors are both
acceptable, use of wire-wound resistors is not recom-
mended because of their parasitic inductance. Similarly,
capacitors should be low-inductance for best
performance.
The EL2245C/EL2445C Macromodel
This macromodel has been developed to assist the user
in simulating the EL2245C/EL2445C with surrounding
circuitry. It has been developed for the PSPICE simula-
tor (copywritten by the Microsim Corporation), and may
need to be rearranged for other simulators. It approxi-
mates DC, AC, and transient response for resistive
loads, but does not accurately model capacitive loading.
This model is slightly more complicated than the models
used for low-frequency op-amps, but it is much more
accurate for AC analysis.
The model does not simulate these characteristics
accurately:
noise
settling-time
CMRR
PSRR
non-linearities
temperature effects
manufacturing variations
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