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ADCMP561:  Dual High Speed PECL Comparator 16 - Lead QSOP

Product Details

The ADCMP561/ADCMP562 are high speed comparators fabricated on Analog Devices’ proprietary XFCB process. The devices feature a 1 ns propagation delay with less than 150 ps overdrive dispersion. Dispersion, a measure of the difference in propagation delay under differing overdrive conditions, is a particularly important characteristic of high speed comparators. A separate programmable hysteresis pin is available on the ADCMP562.

A differential input stage permits consistent propagation delay with a wide variety of signals in the common-mode range from -2.0 V to +3.0 V. Outputs are complementary digital signals that are fully compatible with PECL 10 K and 10 KH logic families. The outputs provide sufficient drive current to directly drive transmission lines terminated in 50 . to VDD - 2 V. A latch input, which is included, permits tracking, track-and-hold, or sample-and-hold modes of operation.

The ADCMP561/ADCMP562 are specified over the industrial temperature range (-40°C to +85°C). The ADCMP561 is available in a 16-lead QSOP package. The ADCMP562 is available in a 20-lead QSOP package.


  • Differential PECL Compatible Outputs
  • 1 ns Propagation Delay Input to Output
  • 100 ps Propagation Delay Dispersion
  • Input Common-Mode Range: –2.0 V to +3.0 V
  • Input Differential Range
  • Robust Input Protection
  • Differential Latch Control
  • Power Supply Rejection Greater Than 70 dB
  • 700 ps Minimum Pulse Width
  • 1.5 GHz Equivalent Input Rise Time Bandwidth
  • Typical Output Rise/Fall Time of 500 ps
  • Programmable Hysteresis

Functional Block Diagram for ADCMP561


Title Content Type File Type
ADCMP561/ADCMP562: Dual High Speed PECL Comparators Data Sheet  (Rev A, 08/2004) (pdf, 335 kB) Data Sheets PDF
Comparators Product Brochure 2007  (pdf, 4991 kB) Product Selection Guide PDF
Automatic Test Equipment Brochure  (pdf, 2037 kB) Overview PDF
Power System Management (Spring 2007)  (pdf, 1170 kB) Overview PDF
RAQs index Rarely Asked Questions HTML
Does Analog Devices offer any examples application circuits for Hi Speed Comparators? FAQs/RAQs HTML
Glossary of EE Terms Glossary HTML

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Price, packaging, availability

ADCMP561 Model Options
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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADCMP561 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
EVAL-ADCMP561BRQZ Status: Production Evaluation Board $259.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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