Documents

AD8611-COMPARADOR.pdf

Description
REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices 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 Analog Devices. a AD8611/AD8612 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http
Categories
Published
of 12
All materials on our website are shared by users. If you have any questions about copyright issues, please report us to resolve them. We are always happy to assist you.
Related Documents
Share
Transcript
  REV.0 Information furnished by Analog Devices is believed to be accurate andreliable. However, no responsibility is assumed by Analog Devices for itsuse, nor for any infringements of patents or other rights of third partieswhich may result from its use. No license is granted by implication orotherwise under any patent or patent rights of Analog Devices. a AD8611/AD8612 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.Tel: 781/329-4700World Wide Web Site: http://www.analog.comFax: 781/326-8703© Analog Devices, Inc., 2000 Ultrafast 4 nsSingle Supply Comparators PIN CONFIGURATIONS FEATURES4 ns Propagation Delay at 5 VSingle Supply Operation: 3 V to 5 V100 MHz InputLatch FunctionAPPLICATIONSHigh-Speed TimingClock Recovery and Clock DistributionLine ReceiversDigital CommunicationsPhase DetectorsHigh-Speed SamplingRead Channel DetectionPCMCIA CardsZero Crossing DetectorHigh-Speed A/D ConverterUpgrade for LT1394 and LT1016 Designs GENERAL DESCRIPTION The AD8611/AD8612 are single and dual 4 ns comparators withlatch function and complementary output.Fast 4 ns propagation delay makes the AD8611/AD8612 a goodchoice for timing circuits and line receivers. Propagation delaysfor rising and falling signals are closely matched and track overtemperature. This matched delay makes the AD8611/AD8612 agood choice for clock recovery, since the duty cycle of the outputwill match the duty cycle of the input.The AD8611 has the same pinout as the LT1016 and LT1394,with lower supply current and a wider common-mode input range,which includes the negative supply rail.The AD8611/AD8612 is specified over the industrial (–40 ° C to+85 ° C) temperature range. The AD8611 is available in both 8-leadMSOP and narrow SO-8 surface mount packages. The AD8612is available in 14-lead TSSOP surface-mount package. 14-Lead TSSOP(RU-14)   TOP VIEW(Not to Scale) 1413121110981234567  Q  AGNDLE AV  IN A  IN A+QB  Q  BGNDLE BV+IN B  IN B+QA AD8612 8-Lead MSOP(RM-8)  IN  INV  OUTGNDLATCHOUT1458 AD8611 V  8-Lead Narrow Body SO(SO-8) V  INV  INOUTOUTGNDLATCH AD8611  –2–REV. 0 AD8611/AD8612–SPECIFICATIONS ELECTRICAL SPECIFICATIONS ParameterSymbolConditionsMinTypMaxUnit INPUT CHARACTERISTICSOffset VoltageV OS 17mV –40 ° C ≤  T A   ≤  +85 ° C8mVOffset Voltage Drift  ∆ V OS / ∆ T4  µ V/ ° CInput Bias CurrentI B V CM  = 0 V–6–4  µ AI B  –40 ° C ≤  T A   ≤  +85 ° C–7–4.5  µ AInput Offset CurrentI OS V CM  = 0 V  ± 4  µ AInput Common-Mode Voltage RangeV CM 0.03.0VCommon-Mode Rejection RatioCMRR0 V ≤  V CM   ≤  3.0 V5585dBLarge Signal Voltage GainA VO R  L   = 10 k Ω 3,000V/VInput CapacitanceC IN 3.0pFLATCH ENABLE INPUTLogic “1” Voltage ThresholdV IH 2.01.65VLogic “0” Voltage ThresholdV IL  1.600.8VLogic “1” CurrentI IH V LH  = 3.0 V–1.0–0.3  µ ALogic “0” CurrentI IL  V LL   = 0.3 V–5–2.7  µ ALatch EnablePulsewidtht PW(E) 3nsSetup Timet S 0.5nsHold Timet H 0.5nsDIGITAL OUTPUTSLogic “1” VoltageV OH I OH  = 50 µ A, ∆ V IN  > 250 mV3.03.35VLogic “1” VoltageV OH I OH  = 3.2 mA, ∆ V IN  > 250 mV2.43.4VLogic “0” VoltageV OL  I OL   = 3.2 mA, ∆ V IN  > 250 mV0.250.4VDYNAMIC PERFORMANCEInput Frequencyf  MAX 400 mV p-p sine wave100MHzPropagation Delayt P 200 mV Step with 100 mV Overdrive 1 4.05.5ns –40 ° C ≤  T A   ≤  +85 ° C5nsPropagation Delayt P 100 mV Step with 5 mV Overdrive5nsDifferential Propagation Delay(Rising Propagation Delay vs.Falling Propagation Delay)  ∆ t P 100 mV Step with 100 mV Overdrive 1 0.52.0nsRise Time20% to 80%2.5nsFall Time80% to 20%1.1nsPOWER SUPPLYPower Supply Rejection RatioPSRR4.5 V ≤  V+ ≤  5.5 V5573dBV+ Supply Current 2 I+5.710mA –40 ° C ≤  T A   ≤  +85 ° C10mAGround Supply Current 2 I GND V O  = 0 V, R  L   = ∞ 3.57mA –40 ° C ≤  T A   ≤  +85 ° C7mAV– Supply Current 2 I–2.24mA –40 ° C ≤  T A   ≤  +85 ° C5mA NOTES 1 Guaranteed by design. 2 Per comparator.Specifications subject to change without notice. (@ V+ = 5.0 V, V– = V GND  = 0 V, T A  = 25  C unless otherwise noted)  –3–REV. 0 AD8611/AD8612 CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000V readilyaccumulate on the human body and test equipment and can discharge without detection.Although the AD8611/AD8612 features proprietary ESD protection circuitry, permanent dam-age may occur on devices subjected to high-energy electrostatic discharges. Therefore, properESD precautions are recommended to avoid performance degradation or loss of functionality. ELECTRICAL SPECIFICATIONS ParameterSymbolConditionsMinTypMaxUnit INPUT CHARACTERISTICSOffset VoltageV OS 17mVInput Bias CurrentI B V CM  = 0 V–6–4.0  µ AI B  –40 ° C ≤  T A   ≤  +85 ° C–7–4.5  µ AInput Common-Mode Voltage RangeV CM 01.0VCommon-Mode Rejection RatioCMRR0 V ≤  V CM   ≤  1.0 V55dBOUTPUT CHARACTERISTICSOutput High VoltageV OH I OH  = –3.2 mA, V IN  > 250 mV1.2 1 VOutput Low VoltageV OL  I OL   = +3.2 mA, V IN  > 250 mV0.3VPOWER SUPPLYPower Supply Rejection RatioPSRR2.7 V ≤  V+ ≤  6 V46dBSupply CurrentsV O  = 0 V, R  L   = ∞ V+ Supply Current 2 I+4.56.5mA –40 ° C ≤  T A   ≤  +85 ° C10mAGround Supply Current 2 I GND 2.53.5mA –40 ° C ≤  T A   ≤  +85 ° C5.5mAV– Supply Current 2 I–23.5mA –40 ° C ≤  T A   ≤  +85 ° C4.8mADYNAMIC PERFORMANCEPropagation Delayt P 100 mV Step with 20 mV Overdrive 3 4.56.5ns NOTES 1 Output high voltage without pull-up resistor. It may be useful to have a pull-up resistor to V+ for 3 V operation. 2 Per comparator. 3 Guaranteed by design.Specifications subject to change without notice. (@ V+   = 3.0 V, V– = V GND  = 0 V, T A  = 25  C unless otherwise noted) WARNING! ESD SENSITIVE DEVICE ORDERING GUIDE TemperaturePackagePackageBrandingModelRangeDescriptionOptionInformation AD8611ARM–40 ° C to +85 ° C8-Lead Micro SOICRM-8G1AAD8611AR–40 ° C to +85 ° C8-Lead Small Outline ICSO-8AD8612ARU–40 ° C to +85 ° C14-Lead Thin Shrink Small OutlineRU-14 ABSOLUTE MAXIMUM RATINGS Total Analog Supply Voltage . . . . . . . . . . . . . . . . . . . . . 7.0 VDigital Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . 7.0 VInput Voltage 1  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 4 VDifferential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . ± 5 VOutput Short-Circuit Duration to GND . . . . . . . . . IndefiniteStorage Temperature Range R, RU, RM Packages . . . . . . . . . . . . . . . –65 ° C to +150 ° COperating Temperature Range . . . . . . . . . . . –40 ° C to +85 ° C Junction Temperature RangeR, RU, RM Packages . . . . . . . . . . . . . . . . –65 ° C to +150 ° CLead Temperature Range (Soldering, 10 sec) . . . . . . . 300 ° C Package Type    JA2   JC Unit 8-Lead SO (R)15843  ° C/W8-Lead MSOP (RM)24043  ° C/W14-Lead TSSOP (RU)24043  ° C/W NOTES 1 The analog input voltage is equal to ± 4 V or the analog supply voltage, whicheveris less. 2 θ  JA  is specified for the worst-case conditions, i.e., θ  JA is specified for device in socketfor P-DIP and θ  JA is specified for device soldered in circuit board for SOIC andTSSOP packages.  AD8611/AD8612 –4–REV. 0 TEMPERATURE –  C80  50100  25    P   R   O   P   A   G   A   T   I   O   N   D   E   L   A   Y  –  n  s 02550756542137V+ = 5VOVERDRIVE > 10mV  PD   PD+ Figure 1.Propagation Delay Over Temperature  OVERDRIVE –  mV181600255    P   R   O   P   A   G   A   T   I   O   N   D   E   L   A   Y     –   n  s 1015201064214128V+ = 5VT A  = 25  C  PD   PD+ Figure 2.Propagation Delay vs. Overdrive  V+ = 5VT A  = 25  COVERDRIVE > 10mVCAPACITANCE –  pF8008020    P   R   O   P   A   G   A   T   I   O   N   D   E   L   A   Y     –    n  s 40606542137  PD   PD+ Figure 3.Propagation Delay vs. Load Capacitance  V+ = 5VT A  = 25  COVERDRIVE = 5mVSOURCE RESISTANCE –  k   18002.50.5    P   R   O   P   A   G   A   T   I   O   N   D   E   L   A   Y     –   n  s 1.01.52.06214128  PD   PD+ Figure 4.Propagation Delay vs. Source Resistance  SUPPLY VOLTAGE –  V870263    P   R   O   P   A   G   A   T   I   O   N   D   E   L   A   Y     –    n  s 45432165T A  = 25  CSTEP = 100 mVOVERDRIVE > 10 mV  PD+  PD  Figure 5.Propagation Delay vs. Supply Voltage  COMMON-MODE VOLTAGE –  V35300263    P   R   O   P   A   G   A   T   I   O   N   D   E   L   A   Y   –   n  s 45151052520T A  = 25  CSTEP = 100 mVOVERDRIVE = 50 mV  PD+  PD  Figure 6.Propagation Delay vs. Common-Mode Voltage 

A 089049

Jul 23, 2017

Int Money Earkrt

Jul 23, 2017
We Need Your Support
Thank you for visiting our website and your interest in our free products and services. We are nonprofit website to share and download documents. To the running of this website, we need your help to support us.

Thanks to everyone for your continued support.

No, Thanks