LM2901VDR2G datasheet(6/10 Pages) ONSEMI

部件名	LM2901VDR2G

功能描述	Single Supply Quad Comparators

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制造商	ONSEMI [ON Semiconductor]

网页	http://www.onsemi.com

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LM339, LM239, LM2901, LM2901V, NCV2901, MC3302

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6

APPLICATIONS INFORMATION

These quad comparators feature high gain, wide

bandwidth characteristics. This gives the device oscillation

tendencies if the outputs are capacitively coupled to the

inputs via stray capacitance. This oscillation manifests itself

during output transitions (VOL to VOH). To alleviate this

situation input resistors < 10 k

W should be used. The

addition of positive feedback (< 10 mV) is also

recommended. It is good design practice to ground all

unused input pins.

Differential input voltages may be larger than supply

voltages without damaging the comparator’s inputs.

Voltages more negative than −300 mV should not be used.

10

Figure 9. Zero Crossing Detector

(Single Supply)

Figure 10. Zero Crossing Detector

(Split Supplies)

Vin(min) ≈ 0.4 V peak for 1% phase distortion (Dq).

D1 prevents input from going negative by more than 0.6 V.

R1 + R2 = R3

R3

≤

R5

for small error in zero crossing

Vin

10 k

D1

R1

8.2 k

6.8 k

R2

15 k

R3

+15 V

*

q

VCC

10 k

Vin

VEE

Vin

Vin(min)

VCC

VO

VEE

Dq

q

*

)

10 M

R5

220 k

R4

220 k

VO

+

类似零件编号 - LM2901VDR2G

制造商	部件名	数据表	功能描述
ON Semiconductor	LM2901VDR2G	159Kb / 12P	Single Supply Quad Comparators November, 2010 ??Rev. 19
	LM2901VDR2G	119Kb / 11P	Single Supply Quad Comparators October, 2016 ??Rev. 23
	LM2901VDR2G	316Kb / 14P	Single Supply Quad Comparators October, 2021 - Rev. 27

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类似说明 - LM2901VDR2G

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