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參數(shù)資料
| 型號(hào)： | LT1715 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 4ns, 150MHz Dual Comparator with Independent Input/Output Supplies |
| 中文描述： | 4ns的，150MHz的雙通道比較器與獨(dú)立的輸入/輸出設(shè)備 |
| 文件頁(yè)數(shù)： | 16/16頁(yè) |
| 文件大小： | 239K |
| 代理商： | LT1715 |
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LT1715
1715f LT/TP 0401 4K PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 2001
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
G
FAX: (408) 434-0507
G
www.linear-tech.com
PART NUMBER
LT1016
LT1116
LT1394
LT1711/LT1712
LT1713/LT1714
LT1719
LT1720/LT1721
DESCRIPTION
UltraFast Precision Comparator
12ns Single Supply Ground-Sensing Comparator
7ns, UltraFast, Single Supply Comparator
4.5ns, 3V/5V/
±
5V Single/Dual Rail-to-Rail Comparators
7ns, Low Power, 3V/5V/
±
5V Single/Dual Rail-to-Rail Comparators
4.5ns Single Supply 3V/5V Comparator
Dual/Quad 4.5ns, Single Supply 3V/5V Comparator
COMMENTS
Industry Standard 10ns Comparator
Single Supply Version of LT1016
6mA Single Supply Comparator
UltraFast Rail-to-Rail Input and Output Comparator
Rail-to-Rail Input and Output Comparator
Single Comparator Similar to the LT1715
Dual/Quad Comparator Similar to the LT1715
RELATED PARTS
High Performance Sine Wave
to Square Wave Converter
Propagation delay of comparators is typically specified for
a 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 cross
talk. 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 flat yielding excellent AM rejection
from 0dBm to 15dBm. If a 2:1 transformer is used to drive
the input differentially, this exceptionally flat zone spans
–5dBm to 10dBm, a common range for RF signal levels.
Figure 12a. LT1715-Based Sine Wave to Square Wave Converter
Similar delay performance is achieved with input frequen-
cies as high as 50MHz. There is, however, some additional
encroachment into the central flat 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 12mV
P-P
sine wave at
10MHz will barely toggle the LT1715, with 90
°
of phase lag
or 25ns additional delay.
Above 5V
P-P
at 10MHz, the LT1715 delay starts to de-
crease due to internal capacitive feed-forward in the input
stage. Unlike some comparators, the LT1715 will not
falsely anticipate 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 12b. Time Delay vs Sine Wave Input Amplitude
–
+
1/2 LT1715
50
1715 F12a
SINE WAVE
INPUT
SQUARE WAVE
OUTPUT
5V
–5V
3V
INPUT AMPLITUDE (dBm)
–5
0
T
1
2
3
4
5
0
5
10
15
1715 F12b
20
25
632mV
P-P
2V
P-P
6.32V
P-P
25
°
C
V
CC
= 5V
V
EE
= –5V
+V
= 3V
10MHz
TYPICAL APPLICATIO
U
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PDF描述 |
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| LT1715CMS | 4ns, 150MHz Dual Comparator with Independent Input/Output Supplies |
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| LT1761-1.8 | 100mA, Low Noise, LDO Micropower Regulators in SOT-23(1.8V輸出，100mA,低噪聲，低壓差穩(wěn)壓器（SOT-23封裝）) |
| LT1761-2 | 100mA, Low Noise, LDO Micropower Regulators in SOT-23(2V輸出，100mA,低噪聲，低壓差穩(wěn)壓器（SOT-23封裝）) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1715_1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:4ns, 150MHz Dual Comparator with Independent Input/Output Supplies |
| LT1715CMS | 功能描述:IC COMPARATOR 150MHZ DUAL 10MSOP RoHS:否 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(zhǔn)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(zhǔn)）:- 電流 - 靜態(tài)（最大值）:24µA CMRR, PSRR（標(biāo)準(zhǔn)）: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 |
| LT1715CMS#PBF | 功能描述:IC COMPARATOR 150MHZ DUAL 10MSOP 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(zhǔn)包裝:50 系列:- 類型:帶電壓基準(zhǔn) 元件數(shù):4 輸出類型:開(kāi)路漏極 電壓 - 電源，單路/雙路(±):2.5 V ~ 11 V，±1.25 V ~ 5.5 V 電壓 - 輸入偏移（最小值）:10mV @ 5V 電流 - 輸入偏壓（最小值）:- 電流 - 輸出（標(biāo)準(zhǔn)）:0.015mA @ 5V 電流 - 靜態(tài)（最大值）:8.5µA CMRR, PSRR（標(biāo)準(zhǔn)）:80dB CMRR，80dB PSRR 傳輸延遲（最大）:- 磁滯:- 工作溫度:0°C ~ 70°C 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 安裝類型:表面貼裝 包裝:管件 產(chǎn)品目錄頁(yè)面:1386 (CN2011-ZH PDF) |
| LT1715CMS#PBF | 制造商:Linear Technology 功能描述:High Speed Comparator IC |
| LT1715CMS#PBF | 制造商:Linear Technology 功能描述:IC HIGH SPEED COMPARATOR |
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