Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

EL5181CS-T13 Datasheet(PDF) 9 Page - Intersil Corporation

Part # EL5181CS-T13
Description  8ns High-Speed Comparator
Download  9 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

EL5181CS-T13 Datasheet(HTML) 9 Page - Intersil Corporation

  EL5181CS-T13 Datasheet HTML 1Page - Intersil Corporation EL5181CS-T13 Datasheet HTML 2Page - Intersil Corporation EL5181CS-T13 Datasheet HTML 3Page - Intersil Corporation EL5181CS-T13 Datasheet HTML 4Page - Intersil Corporation EL5181CS-T13 Datasheet HTML 5Page - Intersil Corporation EL5181CS-T13 Datasheet HTML 6Page - Intersil Corporation EL5181CS-T13 Datasheet HTML 7Page - Intersil Corporation EL5181CS-T13 Datasheet HTML 8Page - Intersil Corporation EL5181CS-T13 Datasheet HTML 9Page - Intersil Corporation  
Zoom Inzoom in Zoom Outzoom out
 9 / 9 page
background image
9
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
Check the current through R3 and make sure that it is much
greater than the input bias current as follows:
The above two methods will generate hysteresis of up to a
few hundred millivolts. Beyond that, the impedance of R3 is
low enough to affect the bias string and adjustment of R1
may be required.
Power Dissipation
When switching at high speeds, the comparator's drive capa-
bility is limited by the rise in junction temperature caused by
the internal power dissipation. For reliable operation, the
junction temperature must be kept below TJMAX (125°C).
An approximate equation for the device power dissipation is
as follows. Assume the power dissipation in the load is very
small:
where:
VS is the analog supply voltage from VS+ to VS-
IS is the analog quiescent supply current per comparator
VSD is the digital supply voltage from VSD to ground
ISD is the digital supply current per comparator
ISD strongly depends on the input switching frequency.
Please refer to the performance curve to choose the input
driving frequency. Having obtained the power dissipation,
the maximum junction temperature can be determined as
follows:
where:
TMAX is the maximum ambient temperature
θJA is the thermal resistance of the package
Threshold Detector
The inverting input is connected to a reference voltage and
the non-inverting input is connected to the input. As the input
passes the VREF threshold, the comparator's output
changes state. The non-inverting and inverting inputs may
be reversed.
Crystal Oscillator
A simple crystal oscillator using one comparator of an
EL5181 is shown below. The resistors R1 and R2 set the
bias point at the comparator's non-inverting input. Resistors
R3, R4, and C1 set the inverting input node at an appropriate
DC average voltage based on the output. The crystal's path
provides resonant positive feedback and stable oscillation
occurs. Although the EL5181 will give the correct logic output
when an input is outside the common mode range, additional
delays may occur when it is so operated. Therefore, the DC
bias voltages at the inputs are set about 500mV below the
center of the common mode range and the 200
Ω resistor
attenuates the feedback to the non-inverting input. The cir-
cuit will operate with most AT-cut crystal from 1MHz to 8MHz
over a 2V to 7V supply range. The output duty cycle for this
circuit is roughly 50% at 5V VCC, but it is affected by the tol-
erances of the resistors. The duty cycle can be adjusted by
changing VCC value.
I
0.5V
SD-VREF
R
3
---------------------------------------
=
P
DISS
V
S
I
S
V
SD
I
SD )
×
+
×
(
=
T
JMAX
T
MAX
Θ
JA
P
DISS
×
+
=
+
-
VIN
VREF
VOUT
+
-
200
VOUT
R4
R3
5V
1MHz to 8MHz
2k
C1
0.01µF
5k
1.5k
2k
R1
R2
EL5181


Similar Part No. - EL5181CS-T13

ManufacturerPart #DatasheetDescription
logo
Elantec Semiconductor
EL5181CS-T13 ELANTEC-EL5181CS-T13 Datasheet
106Kb / 11P
   8ns High-Speed Comparator
More results

Similar Description - EL5181CS-T13

ManufacturerPart #DatasheetDescription
logo
Elantec Semiconductor
EL5181C ELANTEC-EL5181C Datasheet
106Kb / 11P
   8ns High-Speed Comparator
logo
Intersil Corporation
EL5281 INTERSIL-EL5281 Datasheet
161Kb / 9P
   Dual 8ns High-Speed Comparator
EL5283 INTERSIL-EL5283 Datasheet
150Kb / 8P
   Window 8ns High-Speed Comparator
logo
Elantec Semiconductor
EL5281C ELANTEC-EL5281C Datasheet
108Kb / 11P
   Dual 8ns High-Speed Comparator
logo
Renesas Technology Corp
EL5481 RENESAS-EL5481 Datasheet
568Kb / 9P
   Quad 8ns High-Speed Comparators
June 14, 2001
logo
Elantec Semiconductor
EL5481C ELANTEC-EL5481C Datasheet
112Kb / 11P
   Quad 8ns High-Speed Comparators
logo
Intersil Corporation
EL5481 INTERSIL-EL5481 Datasheet
176Kb / 9P
   Quad 8ns High-Speed Comparators
logo
Elantec Semiconductor
EL5283C ELANTEC-EL5283C Datasheet
257Kb / 9P
   Dual and Window 8ns High-Speed Comparators
logo
Linear Technology
LT685 LINER-LT685_1 Datasheet
99Kb / 8P
   High Speed Comparator
LT685 LINER-LT685 Datasheet
248Kb / 4P
   High Speed Comparator
More results


Html Pages

1 2 3 4 5 6 7 8 9


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com