Preliminary Technical Data

ADCMP551/ADCMP552/ADCMP553

Rev. PrB | Page 13 of 14

TYPICAL APPLICATION CIRCUITS

ADCMP551/

ADCMP552/

ADCMP553

+

–

ALL RESISTORS 50

Ω

OUTPUTS

LATCH

ENABLE

INPUTS

Figure 20. High Speed Sampling Circuits

ALL RESISTORS 50

Ω

OUTPUTS

LATCH

ENABLE

INPUTS

ADCMP551/

ADCMP552/

ADCMP553

+

–

ADCMP551/

ADCMP552/

ADCMP553

+

–

Figure 21. High Speed Window Comparator

OUTPUTS

R1

R2

ALL RESISTORS 50

Ω

ADCMP551/

ADCMP552/

ADCMP553

+

–

Figure 22. Hysteresis Using Positive Feedback

OUTPUTS

450

Ω

ALL RESISTORS 50

Ω UNLESS OTHERWISE NOTED

HYSTERESIS

VOLTAGE

ADCMP551/

ADCMP552/

ADCMP553

+

–

Figure 23. Hysteresis Using Latch Enable Input

50

Ω

50

Ω

100

Ω

100

Ω

50

Ω

50

Ω

ADCMP551/

ADCMP552/

ADCMP553

+

–

Figure 24. How to Interface a PECL Output to an

Instrument with a 50 Ω to Ground Input