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參數(shù)資料
| 型號： | LT1721IS |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | Dual/Quad, 4.5ns, Single Supply 3V/5V Comparators with Rail-to-Rail Outputs |
| 中文描述： | QUAD COMPARATOR, 4500 uV OFFSET-MAX, 7 ns RESPONSE TIME, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SO-16 |
| 文件頁數(shù)： | 15/28頁 |
| 文件大小： | 317K |
| 代理商： | LT1721IS |
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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
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1721IS#PBF | 功能描述:IC COMP R-RINOUT QUAD 16-SOIC RoHS:是 類別:集成電路 (IC) >> 線性 - 比較器 系列:UltraFast™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準包裝:2,500 系列:- 類型:通用 元件數(shù):1 輸出類型:CMOS，推挽式，滿擺幅，TTL 電壓 - 電源，單路/雙路(±):2.5 V ~ 5.5 V，±1.25 V ~ 2.75 V 電壓 - 輸入偏移（最小值）:5mV @ 5.5V 電流 - 輸入偏壓（最小值）:1pA @ 5.5V 電流 - 輸出（標(biāo)準）:- 電流 - 靜態(tài)（最大值）:24µA CMRR, PSRR（標(biāo)準）:80dB CMRR，80dB PSRR 傳輸延遲（最大）:450ns 磁滯:±3mV 工作溫度:-40°C ~ 85°C 封裝/外殼:6-WFBGA，CSPBGA 安裝類型:表面貼裝 包裝:管件 其它名稱:Q3554586 |
| LT1721IS#TRPBF | 制造商:Linear Technology 功能描述:Comparator Quad R-R O/P 6V 16-Pin SOIC N T/R 制造商:Linear Technology 功能描述:IC COMP R-RINOUT QUAD 16SOIC |
| LT1722 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Single, Dual, Quad 200MHz Low Noise Precision Op Amps |
| LT1722CS5 | 制造商:Linear Technology 功能描述:OP Amp Single GP ±6.3V/12.6V 5-Pin TSOT-23 |
| LT1722CS5#PBF | 制造商:Linear Technology 功能描述:OP Amp Single GP 制造商:Linear Technology 功能描述:SC-Amps/Industrial Cut Tape 2 制造商:Linear Technology 功能描述:SC-Amps/Industrial, Cut Tape 200MHz Low Noise Precision OP Amp |
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