ADCMP582:  Ultrafast SiGe Voltage Comparator (Featuring Reduced Swing PECL Output Drivers)

The ADCMP580/ADCMP581/ADCMP582 are ultrafast voltage comparators fabricated on the Analog Devices, Inc. proprietary XFCB3 Silicon Germanium (SiGe) bipolar process. The ADCMP580 features CML output ...More

ADCMP582:  Ultrafast SiGe Voltage Comparator (Featuring Reduced Swing PECL Output Drivers)

Product Description

The ADCMP580/ADCMP581/ADCMP582 are ultrafast voltage comparators fabricated on the Analog Devices, Inc. proprietary XFCB3 Silicon Germanium (SiGe) bipolar process. The ADCMP580 features CML output drivers, the ADCMP581 features reduced swing ECL (negative ECL) output drivers, and the ADCMP582 features reduced swing PECL (positive ECL) output drivers.

All three comparators offer 180 ps propagation delay and 100 ps minimum pulse width for 10 Gbps operation with 200 fs random jitter (RJ). Overdrive and slew rate dispersion are typically less than 15 ps.

The ±5 V power supplies enable a wide −2 V to +3 V input range with logic levels referenced to the CML/NECL/PECL outputs. The inputs have 50 Ω on-chip termination resistors with the optional capability to be left open (on an individual pin basis) for applications requiring high impedance input.

The CML output stage is designed to directly drive 400 mV into 50 Ω transmission lines terminated to ground. The NECL output stages are designed to directly drive 400 mV into 50 Ω terminated to −2 V. The PECL output stages are designed to directly drive 400 mV into 50 Ω terminated to VCCO − 2 V. High speed latch and programmable hysteresis are also provided. The differential latch input controls are also 50 Ω terminated to an independent VTT pin to interface to either CML or ECL or to PECL logic.

The ADCMP580/ADCMP581/ADCMP582 are available in a 16-lead LFCSP_VQ.

Applications

  • Automatic test equipment (ATE)
  • High speed instrumentation
  • Pulse spectroscopy
  • Medical imaging and diagnostics
  • High speed line receivers
  • Threshold detection
  • Peak and zero-crossing detectors
  • High speed trigger circuitry
  • Clock and data signal restoration

    • Data Sheet, Rev. A, 8/07

    Features

    • 180 ps propagation delay
    • 25 ps overdrive and slew rate dispersion
    • 8 GHz equivalent input rise time bandwidth
    • 100 ps minimum pulse width
    • 37 ps typical output rise/fall
    • 10 ps deterministic jitter (DJ)
    • 200 fs random jitter (RJ)
    • −2 V to +3 V input range with +5 V/−5 V supplies
    • On-chip terminations at both input pins
    • Resistor-programmable hysteresis
    • Differential latch control
    • Power supply rejection > 70 dB

    Diagrams

    ADCMP582 Diagram
    Functional Block Diagram for ADCMP582

    Specifications

    Logic Output PECL
    # Per Pkg 1
    Prop Delay (ns)typ 0.15ns
    Voltage Supply (V) 5, -5.2
    Supply Current (max) 75mA
    Min Pulse Width 80ps
    Package 16-Lead LFCSP
    Output Rise/Fall Time 35 ps
    Latch Enable Pin X
    Jitter 200 fs

    Explore Other Products

    Part# Prop Delay (ns)typ # Per Pkg Total Power (mW) Voltage Supply (V) No of Supplies Input Range (V) Logic Output Adjustable Hysteresis Min Pulse Width
    AD790 45 1 250 +/-15 3 -Vs to Vs -2V TTL/CMOS Fixed -
    AD8561 7 1 65 +/- 5 2 -5.0V to +3.0V Diff/TTL - -
    AD8564 8 4 150 +/- 5 2 -5.0V to +3.0V TTL/CMOS - -
    AD8611 5.5 1 50 3 to 5 1 0 to 3V Diff/TTL - -
    AD8612 5.5 2 100 3 to 5 1 0 to 3V Diff/TTL - -
    AD96685 6 1 120 5, -5.2 2 -2.5V to +5.0V Diff/ECL - -
    AD96687 6 2 240 5, -5.2 2 -2.5V to +5.0V Diff/ECL - -
    ADCMP551 0.75 2 60 3.3 to 5 1 -0.2 to Vcc-2V PECL - 700ps
    ADCMP552 0.75 2 60 3.3 to 5 1 -0.2 to Vcc-2V PECL X 700ps
    ADCMP553 0.75 1 30 3.3 to 5 1 -0.2 to Vcc-2V PECL - 700ps
    ADCMP561 0.75 2 160 5, -5.2 2 -2 to 3V PECL - 700ps
    ADCMP562 0.75 2 160 5, -5.2 2 -2 to 3V PECL X 700ps
    ADCMP563 0.75 2 120 5, -5.2 2 -2 to 3V ECL - 700ps
    ADCMP564 0.75 2 120 5, -5.2 2 -2 to 3V ECL X 700ps
    ADCMP572 0.15 1 145 3.3 to 5 1 -0.2 to Vcci-2.1V CML X 80ps
    ADCMP573 0.15 1 145 3.3 to 5 1 -0.2 to Vcci-2.1V PECL X 80ps
    ADCMP580 0.15 1 240 5, -5.2 2 -2 to 3V CML X 80ps
    ADCMP581 0.15 1 240