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参数资料
| 型号： | LT1720CS8 |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 运动控制电子 |
| 英文描述： | Dual/Quad, 4.5ns, Single Supply 3V/5V Comparators with Rail-to-Rail Outputs |
| 中文描述： | DUAL COMPARATOR, 4500 uV OFFSET-MAX, 7 ns RESPONSE TIME, PDSO8 |
| 封装： | 0.150 INCH, PLASTIC, SO-8 |
| 文件页数： | 15/28页 |
| 文件大小： | 317K |
| 代理商： | LT1720CS8 |
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15
LT1720/LT1721
APPLICATIO
S I
N
FOR
ATIO
U
1000
W
U
56% low duty cycle, sufficient to allow 2ns between the
high pulses. Figure 10 shows the two outputs.
The optional A1 feedback network shown can be used to
force identical output duty cycles. The steady state duty
cycles of both outputs will be 44%. Note, though, that the
addition of this network only adjusts the percentage of
time each output is high to be the same, which can
be
important in switching circuits requiring identical settling
times. It cannot adjust the relative phases between the two
outputs to be exactly 180
°
apart, because the signal at the
input node driven by the crystal is not a pure sinusoid.
SUPPLY VOLTAGE (V)
2.5
O
4.5
6.0
800
600
400
200
0
1720/21 F08
3.5
5.5
3.0
4.0
5.0
Figure 8. Timing Skew of Figure 7’s Circuit
–
+
–
+
–
+
C1
1/2 LT1720
C2
1/2 LT1720
A1
LT1636
V
2.7V TO 6V
2k
620
220
10MHz
CRYSTAL (AT-CUT)
100k
100k
2.2k
1.3k
2k
1k
1720/21 F09
0.1
μ
F
0.1
μ
F
0.1
μ
F
OUTPUT 0
OUTPUT 1
GROUND
CASE
OPTIONAL—
SEE TEXT
Figure 9. Crystal-Based Nonoverlapping 10MHz Clock Generator
20ns/DIV
Q0
2V/DIV
Q1
2V/DIV
Figure 10. Nonoverlapping Outputs of Figure 9's Circuit
applications. This circuit works well because of the two
matched delays and rail-to-rail style outputs of the LT1720.
The circuit in Figure 9 shows a crystal oscillator circuit that
generates two nonoverlapping clocks by making full use of
the two independent comparators of the LT1720.
C1 oscillates as before, but with a lower reference level,
C2’s output will toggle at different times. The resistors set
the degree of separation between the output’s high pulses.
With the values shown, each output has a 44% high and
相关PDF资料 |
PDF描述 |
|---|---|
| LT1720CMS8 | Dual/Quad, 4.5ns, Single Supply 3V/5V Comparators with Rail-to-Rail Outputs |
| LT1721IS | Dual/Quad, 4.5ns, Single Supply 3V/5V Comparators with Rail-to-Rail Outputs |
| LT1722 | Single, Dual, Quad 200MHz Low Noise Precision Op Amps |
| LT1723CMS8 | Single, Dual, Quad 200MHz Low Noise Precision Op Amps |
| LT1723CS8 | Single, Dual, Quad 200MHz Low Noise Precision Op Amps |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1720CS8#PBF | 功能描述:IC COMP R-RINOUT DUAL 8-SOIC RoHS:是 类别:集成电路 (IC) >> 线性 - 比较器 系列:UltraFast™ 标准包装:1 系列:- 类型:通用 元件数:1 输出类型:CMOS，开路集电极，TTL 电压 - 电源，单路/双路(±):2.7 V ~ 5.5 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）:84mA @ 5V 电流 - 静态（最大值）:120µA CMRR, PSRR（标准）:- 传输延迟（最大）:600ns 磁滞:- 工作温度:-40°C ~ 85°C 封装/外壳:SC-74A，SOT-753 安装类型:表面贴装 包装:剪切带 (CT) 产品目录页面:1268 (CN2011-ZH PDF) 其它名称:*LMV331M5*LMV331M5/NOPBLMV331M5CT |
| LT1720CS8#PBF | 制造商:Linear Technology 功能描述:COMPARATOR DUAL R/R 3/5V 8SOIC 制造商:Linear Technology 功能描述:COMPARATOR, DUAL, R/R, 3/5V, 8SOIC |
| LT1720CS8#TR | 功能描述:IC COMP DUAL R-R 4MA 4.5NS 8SOIC RoHS:否 类别:集成电路 (IC) >> 线性 - 比较器 系列:UltraFast™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:通用 元件数:1 输出类型:CMOS，推挽式，满摆幅，TTL 电压 - 电源，单路/双路(±):2.5 V ~ 5.5 V，±1.25 V ~ 2.75 V 电压 - 输入偏移（最小值）:5mV @ 5.5V 电流 - 输入偏压（最小值）:1pA @ 5.5V 电流 - 输出（标准）:- 电流 - 静态（最大值）:24µA CMRR, PSRR（标准）:80dB CMRR，80dB PSRR 传输延迟（最大）:450ns 磁滞:±3mV 工作温度:-40°C ~ 85°C 封装/外壳:6-WFBGA，CSPBGA 安装类型:表面贴装 包装:管件 其它名称:Q3554586 |
| LT1720CS8#TRPBF | 功能描述:IC COMP R-RINOUT DUAL 8-SOIC RoHS:是 类别:集成电路 (IC) >> 线性 - 比较器 系列:UltraFast™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:通用 元件数:1 输出类型:CMOS，推挽式，满摆幅，TTL 电压 - 电源，单路/双路(±):2.5 V ~ 5.5 V，±1.25 V ~ 2.75 V 电压 - 输入偏移（最小值）:5mV @ 5.5V 电流 - 输入偏压（最小值）:1pA @ 5.5V 电流 - 输出（标准）:- 电流 - 静态（最大值）:24µA CMRR, PSRR（标准）:80dB CMRR，80dB PSRR 传输延迟（最大）:450ns 磁滞:±3mV 工作温度:-40°C ~ 85°C 封装/外壳:6-WFBGA，CSPBGA 安装类型:表面贴装 包装:管件 其它名称:Q3554586 |
| LT1720CS8PBF | 制造商:Linear Technology 功能描述:Comparator Dual 4.5ns RRO 3V/5V SOIC8 |
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