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| 型號： | ADCMP352YKS-REEL |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Comparators and Reference Circuits |
| 中文描述： | 比較器和參考電路 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 156K |
| 代理商： | ADCMP352YKS-REEL |
ADCMP350/ADCMP352/ADCMP354/ADCMP356
APPLICATIONS
ADDING HYSTERESIS
To prevent oscillations at the output caused by noise or slowly
moving signals passing the switching threshold, positive
feedback can be used to add hysteresis to the noninverting parts
(ADCMP354 and ADCMP356).
Rev. 0 | Page 9 of 12
For the noninverting configuration shown in Figure 19, two
resistors are used to create different switching thresholds,
depending on whether the input signal is increasing or
decreasing in magnitude. When the input voltage is increasing,
the threshold is above V
REF
, and when it’s decreasing, the
threshold is below V
REF
.
The upper input threshold level is given by
(
)
R2
R1
V
R2
R1
V
V
CC
REF
IN_HI
+
=
where
V
REF
= 0.6 V.
The lower input threshold level is given by
(
)
R2
R2
R1
V
V
REF
IN_LO
+
=
The hysteresis is the difference between these voltage levels and
is given by
R2
R1
V
V
CC
IN
=
ADM331
ADCMP354
OUT
V
CC
= 5V
R
PULLUP
R
LOAD
R2
R1
V
IN
V
IN
0
V
REF
= 0.6V
Figure 19. Noninverting Comparator Configuration with Hysteresis
VOLTAGE DETECTOR
The ADCMP35x parts can be used to monitor voltages, such as
battery monitoring or threshold detectors. Using a resistor
divider at the input to select the appropriate trip voltage, the
comparator can be configured to give a logic output when the
input passes that threshold. Figure 20 shows the typical
configuration of the ADCMP354 for monitoring a supply to
indicate that the voltage is above a certain level.
ADM331
ADCMP354
OUT
V
CC
= 5V
R
PULLUP
R1
V
IN
V
IN
0
V
REF
= 0.6V
R1
Figure 20. Voltage Detector Application
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADCMP354YKS-REEL | Comparators and Reference Circuits |
| ADCMP356YKS-REEL | Comparators and Reference Circuits |
| ADCMP352AKS | Comparator and Reference Circuits |
| ADCMP353 | Comparator and Reference Circuits |
| ADCMP353AKS | Comparator and Reference Circuits |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADCMP352YKS-REEL7 | 制造商:Analog Devices 功能描述:COMPARATOR SGL 5.5V 4PIN SC-70 - Tape and Reel 制造商:Rochester Electronics LLC 功能描述:VOLTAGE DETECTOR 0.6V OUT# PP IC - Tape and Reel |
| ADCMP352YKSZ-REEL7 | 制造商:Analog Devices 功能描述:COMPARATOR SGL 5.5V 4PIN SC-70 - Tape and Reel |
| ADCMP353 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Comparator and Reference Circuits |
| ADCMP353AKS | 制造商:AD 制造商全稱:Analog Devices 功能描述:Comparator and Reference Circuits |
| ADCMP354 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Comparator and Reference Circuits |
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