adcmp572 Analog Devices, Inc., adcmp572 Datasheet - Page 12

• Manufacturer Part Number: adcmp572
• Description: Ultrafast 3.3 V/5 V Single-supply Comparators
• Manufacturer: Analog Devices, Inc.

ADCMP572/ADCMP573
TYPICAL APPLICATION CIRCUITS
V
V
P
N
Figure 21. Zero-Crossing Detector with 3.3 V CML Outputs
Figure 22. LVDS to 50 Ω Back Terminated RSPECL Receiver
V
V
V
Figure 24. Comparator with 0 V to 3 V Input Range and
V
V
IN
TH
TH
IN
IN
Figure 23. Comparator with ±1 V Input Range and
V
V
V
V
3.3 V or 5.2 V Positive CML Outputs
V
TP
TN
V
GND = –1V
CCI
P
N
CCI
ADCMP572
+
ADCMP572
–
ADCMP572
2.5 V or 3.3 V CML Outputs
= 5.2V
V
V
= 3.3V
V
V
V
TP
TN
V
V
N
LATCH
INPUTS
CCI
P
LATCH
INPUTS
LATCH
INPUTS
CCO
CCO
ADCMP572
= 5.2V
= 2.5V/3.3V
= 3.3V/5.2V
V
LATCH
INPUTS
CCO
3.3V
50Ω
50Ω
50Ω
2.5V/3.3V
3.3V/5.2V
50Ω
50Ω
50Ω
50Ω
Q
Q
Q
Q
Q
Q
50Ω
Q
Q
Rev. 0 | Page 12 of 16
V
V
V
V
N
N
Figure 28. Adding Hysteresis Using the HYS Control Pin
P
P
Figure 26. Disabling the ADCMP572 Latch Feature
Figure 27. Disabling the ADCMP573 Latch Feature
V
CCI
Figure 25. Interfacing 3.3 V CML to a 50 Ω
ADCMP572
V
V
CCI
V
V
CCI
CCO
LATCH
INPUTS
CCI
Ground Terminated Instrument
ADCMP572
ADCMP573
ADCMP572
= 5.2V = V
V
= 3.3V
V
CCO
V
CCO
750Ω
500Ω
HYS
CCO
= 3.3V
CCO
0Ω TO 5kΩ
V
5V
CCO
V
TT
75Ω
= 3.2V
100Ω
100Ω
V
50Ω
50Ω
V
CCO
50Ω
CCO
50Ω
50Ω
50Ω
50Ω
50Ω