ADCMP552BRQ datasheet(13/14 Pages) AD

13 / 14 page

Preliminary Technical Data

ADCMP551/ADCMP552/ADCMP553

Rev. PrB | Page 13 of 14

TYPICAL APPLICATION CIRCUITS

ADCMP551/

ADCMP552/

ADCMP553

–

ALL RESISTORS 50

Ω

OUTPUTS

VIN

VREF

LATCH

ENABLE

INPUTS

VCCO – 2V

Figure 20. High Speed Sampling Circuits

ALL RESISTORS 50

Ω

OUTPUTS

+VREF

–VREF

VIN

LATCH

ENABLE

INPUTS

VCCO – 2V

ADCMP551/

ADCMP552/

ADCMP553

–

ADCMP551/

ADCMP552/

ADCMP553

–

Figure 21. High Speed Window Comparator

OUTPUTS

VIN

VREF

ALL RESISTORS 50

Ω

VCCO – 2V

ADCMP551/

ADCMP552/

ADCMP553

–

Figure 22. Hysteresis Using Positive Feedback

OUTPUTS

VIN

450

Ω

ALL RESISTORS 50

Ω UNLESS OTHERWISE NOTED

HYSTERESIS

VOLTAGE

VCCO – 2V

ADCMP551/

ADCMP552/

ADCMP553

–

Figure 23. Hysteresis Using Latch Enable Input

VIN

Ω

100

Ω

100

Ω

(VCCO – 2V) × 2

ADCMP551/

ADCMP552/

ADCMP553

–

Figure 24. How to Interface a PECL Output to an

Instrument with a 50 Ω to Ground Input

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