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ADCMP553

Part Number	ADCMP553
Manufacturer	Analog Devices
Description	Single Supply High Speed PECL Comparators
Published	Mar 24, 2005
Detailed Description	Preliminary Technical Data FEATURES Single Supply High Speed PECL Comparators ADCMP551/ADCMP552/ADCMP553 FUNCTIONAL BLO...
Datasheet	ADCMP553 PDF File

Overview

Preliminary Technical Data FEATURES Single Supply High Speed PECL Comparators ADCMP551/ADCMP552/ADCMP553 FUNCTIONAL BLOCK DIAGRAM NONINVERTING INPUT Q OUTPUT Single power supply 750 ps propagation delay input to output 100 ps propagation delay dispersion Differential PECL compatible outputs Differential latch control Internal latch pull-up resistors Power supply rejection greater than 70 dB 750 ps minimum pulse width Equivalent input rise time bandwidth > 750 MHz Typical output rise/fall of 500 ps Programmable Hysteresis INVERTING INPUT ADCMP551/ ADCMP552/ ADCMP553 Q OUTPUT 04722-0-001 LATCH ENABLE INPUT LATCH ENABLE INPUT Figure 1.
GENERAL DESCRIPTION The ADCMP551/ADCMP552/ADCMP553 are single supply, high speed comparators fabricated on Analog Devices’ proprietary XFCB process.
The devices feature a 750 ps 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 ADCMP552.
A differential input stage permits consistent propagation delay with a common-mode range from –0.
2 V to VCCI – 2.
0 V.
Outputs are complementary digital signals 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 Ω to VCCO − 2 V.
A latch input is included and permits tracking, track-and-hold, or sample-and-hold modes of operation.
The latch input pins contain internal pullups that set the latch in tracking mode when left open.
The ADCMP551/ADCMP552/ADCMP553 are specified over the –40°C to +85°C industrial temperature range.
The ADCMP551 is available in a 16-lead QSOP package; the ADCMP552 is available in a 20-lead QSOP package; and the ADCMP553 is available in an 8-lead MSOP package.
APPLICATIONS Automatic test equipment High speed instrumentation Scope ...

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