参数资料
型号: NCV2901DTBR2G
厂商: ON Semiconductor
文件页数: 8/11页
文件大小: 0K
描述: IC COMP QUAD SGL SUPP 14-TSSOP
标准包装: 2,500
类型: 通用
元件数: 4
输出类型: CMOS,开路集电极,TTL
电压 - 电源,单路/双路(±): 3 V ~ 36 V,±1.5 V ~ 18 V
电压 - 输入偏移(最小值): 7mV @ 5V
电流 - 输入偏压(最小值): 0.25µA @ 5V
电流 - 输出(标准): 16mA @ 5V
电流 - 静态(最大值): 2.5mA
工作温度: -40°C ~ 125°C
封装/外壳: 14-TSSOP(0.173",4.40mm 宽)
安装类型: 表面贴装
包装: 带卷 (TR)
其它名称: NCV2901DTBR2G-ND
NCV2901DTBR2GOSTR
LM339, LM239, LM2901, LM2901V, NCV2901, MC3302
http://onsemi.com
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
+
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