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參數(shù)資料
| 型號： | LT1715CMS#TR |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 13/20頁 |
| 文件大小： | 0K |
| 描述： | IC COMPARATOR 150MHZ DUAL 10MSOP |
| 標準包裝： | 2,500 |
| 系列： | UltraFast™ |
| 類型： | 通用 |
| 元件數(shù)： | 2 |
| 輸出類型： | CMOS，滿擺幅，TTL |
| 電壓 - 電源，單路/雙路(±)： | 2.7 V ~ 12 V |
| 電壓 - 輸入偏移（最小值）： | 2.5mV @ ±5V |
| 電流 - 輸入偏壓（最小值）： | 6µA @ ±5V |
| 電流 - 輸出（標準）： | 20mA |
| 電流 - 靜態(tài)（最大值）： | 2mA |
| CMRR, PSRR（標準）： | 70dB CMRR，80dB PSRR |
| 傳輸延遲（最大）： | 9ns |
| 磁滯： | 6mV |
| 工作溫度： | 0°C ~ 70°C |
| 封裝/外殼： | 10-TFSOP，10-MSOP（0.118"，3.00mm 寬） |
| 安裝類型： | 表面貼裝 |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | LT1715CMSTR |
LT1715
20
1715fa
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
LINEAR TECHNOLOGY CORPORATION 2001
LT 1008 REV A PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER
DESCRIPTION
COMMENTS
LT1016
UltraFast Precision Comparator
Industry Standard 10ns Comparator
LT1116
12ns Single Supply Ground-Sensing Comparator
Single Supply Version of LT1016
LT1394
7ns, UltraFast, Single Supply Comparator
6mA Single Supply Comparator
LT1711/LT1712
4.5ns, 3V/5V/±5V Single/Dual Rail-to-Rail Comparators
UltraFast Rail-to-Rail Input and Output Comparator
LT1713/LT1714
7ns, Low Power, 3V/5V/±5V Single/Dual Rail-to-Rail Comparators
Rail-to-Rail Input and Output Comparator
LT1719
4.5ns Single Supply 3V/5V Comparator
Single Comparator Similar to the LT1715
LT1720/LT1721
Dual/Quad 4.5ns, Single Supply 3V/5V Comparator
Dual/Quad Comparator Similar to the LT1715
High Performance Sine Wave
to Square Wave Converter
Propagation delay of comparators is typically specied fora
100mV step with some fraction of that for overdrive. But
in many signal processing applications, such as in com-
munications, the goal is to convert a sine wave, such as
a carrier, to a square wave for use as a timing clock. The
desired behavior is for the output timing to be dependent
on the input timing only. No phase shift should occur as
a function of the input amplitude, which would result in
AM to FM conversion.
The circuit of Figure 12a is a simple LT1715-based sine
wave to square wave converter. The ±5V supplies on the
input allow very large swing inputs, while the 3V logic
supply keeps the output swing small to minimize crosstalk.
Figure 12b shows the time delay vs input amplitude with a
10MHz sine wave. The LT1715 delay changes just 0.65ns
over the 26dB amplitude range; 2.33° at 10MHz. The delay
is particularly at yielding excellent AM rejection from 0dBm
to 15dBm. If a 2:1 transformer is used to drive the input
differentially, this exceptionally at zone spans –5dBm to
10dBm, a common range for RF signal levels.
Similar delay performance is achieved with input fre-
quencies as high as 50MHz. There is, however, some
additional encroachment into the central at zone by both
the small amplitude and large amplitude variations. With
small input signals, the hysteresis and dispersion make
the LT1715 act like a comparator with a 12mV hysteresis
span. In other words, a 12mVP-P sine wave at 10MHz will
barely toggle the LT1715, with 90° of phase lagor 25ns
additional delay.
Above 5VP-P at 10MHz, the LT1715 delay starts to decrease
due to internal capacitive feed-forward in the input stage.
Unlike some comparators, the LT1715 will not falsely an-
ticipate a change in input polarity, but the feed-forward is
enough to make a transition propagate through the LT1715
faster once the input polarity does change.
Figure 12a. LT1715-Based Sine Wave to Square Wave Converter
Figure 12b. Time Delay vs Sine Wave Input Amplitude
–
+
1/2 LT1715
50Ω
1715 F12a
SINE WAVE
INPUT
SQUARE WAVE
OUTPUT
5V
–5V
3V
INPUT AMPLITUDE (dBm)
–5
0
TIME
DELAY
(ns)
1
2
3
4
5
0
510
15
1715 F12b
20
25
632mVP-P
2VP-P
6.32VP-P
25°C
VCC = 5V
VEE = –5V
+VS = 3V
10MHz
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LT1715CMSTRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:4ns, 150MHz Dual Comparator with Independent Input/Output Supplies |
| LT1715HMS#PBF | 功能描述:IC COMP DUAL 150MHZ 4NS 10-MSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 比較器 系列:UltraFast™ 標準包裝:1 系列:- 類型:通用 元件數(shù):1 輸出類型:CMOS，開路集電極，TTL 電壓 - 電源，單路/雙路(±):2.7 V ~ 5.5 V 電壓 - 輸入偏移（最小值）:7mV @ 5V 電流 - 輸入偏壓（最小值）:0.25µA @ 5V 電流 - 輸出（標準）:84mA @ 5V 電流 - 靜態(tài)（最大值）:120µA CMRR, PSRR（標準）:- 傳輸延遲（最大）:600ns 磁滯:- 工作溫度:-40°C ~ 85°C 封裝/外殼:SC-74A，SOT-753 安裝類型:表面貼裝 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:1268 (CN2011-ZH PDF) 其它名稱:*LMV331M5*LMV331M5/NOPBLMV331M5CT |
| LT1715HMS#PBF | 制造商:Linear Technology 功能描述:IC, HIGH SPEED COMP, DUAL, 4NS, MSOP-10 |
| LT1715HMS#TRPBF | 功能描述:IC COMPARATOR 4NS DUAL 10-MSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 比較器 系列:UltraFast™ 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝: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（標準）:- 電流 - 靜態(tài)（最大值）:24µA CMRR, PSRR（標準）: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 |
| LT1715HMSPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:4ns, 150MHz Dual Comparator with Independent Input/Output Supplies |
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