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参数资料
| 型号： | LT1719CS6 |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 运动控制电子 |
| 英文描述： | 4.5ns Single/Dual Supply 3V/5V Comparator with Rail-to-Rail Output |
| 中文描述： | COMPARATOR, 3500 uV OFFSET-MAX, 7 ns RESPONSE TIME, PDSO6 |
| 封装： | PLASTIC, EIAJ, SC-74A, SOT-23, 6 PIN |
| 文件页数： | 16/16页 |
| 文件大小： | 234K |
| 代理商： | LT1719CS6 |
16
LT1719
1719f LT/TP 0300 4K PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 2000
TYPICAL APPLICATIO
N
U
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 8a is a simple LT1719-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 8b shows the time delay vs input amplitude
with a 10MHz sine wave. The LT1719 delay changes just
0.65ns over the 26dB amplitude range; 2.33
°
at 10MHz.
The delay is particularly flat yielding excellent AM rejection
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
G
FAX: (408) 434-0507
G
www.linear-tech.com
Figure 8a. LT1719-Based Sine Wave to Square Wave Converter
PART NUMBER
LT1016
LT1116
LT1394
LT1671
LT1720/LT1721
DESCRIPTION
UltraFast Precision Comparator
12ns Single Supply Ground-Sensing Comparator
7ns, UltraFast, Single Supply Comparator
60ns, Low Power, Single Supply Comparator
Dual/Quad 4.5ns, Single Supply 3V/5V Comparator
COMMENTS
Industry Standard 10ns Comparator
Single Supply Version of LT1016
6mA Single Supply Comparator
450
μ
A Single Supply Comparator
Dual/Quad Comparator Similar to the LT1719
RELATED PARTS
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.
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 LT1719 act like a comparator with a 12mV
hysteresis span. In other words, a 12mV
P-P
sine wave at
10MHz will barely toggle the LT1719, with 90
°
of phase lag
or 25ns additional delay.
Above 5V
P-P
at 10MHz, the LT1719 delay starts to de-
crease due to internal capacitive feed-forward in the input
stage. Unlike some comparators, the LT1719 will not
falsely anticipate a change in input polarity, but the feed-
forward is enough to make a transition propagate through
the LT1719 faster once the input polarity does change.
–
+
LT1719
50
1719 F08a
SINE WAVE
INPUT
SQUARE WAVE
OUTPUT
5V
–5V
3V
INPUT AMPLITUDE (dBm)
–5
0
T
1
2
3
4
5
0
5
10
15
1719 F08b
20
25
632mV
P-P
2V
P-P
6.32V
P-P
25
°
C
V
CC
= 5V
V
EE
= –5V
+V
= 3V
10MHz
Figure 8b. Time Delay vs Sine Wave Input Amplitude
相关PDF资料 |
PDF描述 |
|---|---|
| LT1719IS6 | 4.5ns Single/Dual Supply 3V/5V Comparator with Rail-to-Rail Output |
| LT1721CS | Dual/Quad, 4.5ns, Single Supply 3V/5V Comparators with Rail-to-Rail Outputs |
| LT1721IGN | Dual/Quad, 4.5ns, Single Supply 3V/5V Comparators with Rail-to-Rail Outputs |
| LT1720IS8 | Dual/Quad, 4.5ns, Single Supply 3V/5V Comparators with Rail-to-Rail Outputs |
| LT1720 | Dual/Quad, 4.5ns, Single Supply 3V/5V Comparators with Rail-to-Rail Outputs |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1719CS6#PBF | 制造商:Linear Technology 功能描述:Comparator Single R-R O/P 3V/6V 6-Pin TSOT-23 制造商:Linear Technology 功能描述:COMPARATOR SINGLE 4.5NS TSOT-23-6 制造商:Linear Technology 功能描述:COMPARATOR, SINGLE, 4.5NS, TSOT-23-6, Comparator Type:High Speed, No. of Compara 制造商:Linear Technology 功能描述:COMPARATOR, SINGLE, 4.5NS, TSOT-23-6, Comparator Type:High Speed, No. of Comparators:1, Response Time:4.5ns, Supply Voltage Range:2.7V to 6V, Amplifier Case Style:TSOT-23, No. of Pins:6, IC Output Type:Rail to Rail, MSL:- , RoHS Compliant: Yes |
| LT1719CS6#TR | 功能描述:IC COMP R-RINOUT SINGLE SOT23-6 RoHS:否 类别:集成电路 (IC) >> 线性 - 比较器 系列:UltraFast™ 标准包装:25 系列:- 类型:带电压基准 元件数:4 输出类型:CMOS，开路漏极，TTL 电压 - 电源，单路/双路(±):2 V ~ 11 V，±1 V ~ 5.5 V 电压 - 输入偏移（最小值）:10mV @ 5V 电流 - 输入偏压（最小值）:- 电流 - 输出（标准）:0.015mA @ 5V 电流 - 静态（最大值）:8.5µA CMRR, PSRR（标准）:80dB CMRR，80dB PSRR 传输延迟（最大）:12µs 磁滞:50mV 工作温度:0°C ~ 70°C 封装/外壳:16-DIP（0.300"，7.62mm） 安装类型:通孔 包装:管件 |
| LT1719CS6#TRM | 功能描述:IC COMP R-RINOUT SINGLE SOT23-6 RoHS:否 类别:集成电路 (IC) >> 线性 - 比较器 系列:UltraFast™ 标准包装:25 系列:- 类型:带电压基准 元件数:4 输出类型:CMOS，开路漏极，TTL 电压 - 电源，单路/双路(±):2 V ~ 11 V，±1 V ~ 5.5 V 电压 - 输入偏移（最小值）:10mV @ 5V 电流 - 输入偏压（最小值）:- 电流 - 输出（标准）:0.015mA @ 5V 电流 - 静态（最大值）:8.5µA CMRR, PSRR（标准）:80dB CMRR，80dB PSRR 传输延迟（最大）:12µs 磁滞:50mV 工作温度:0°C ~ 70°C 封装/外壳:16-DIP（0.300"，7.62mm） 安装类型:通孔 包装:管件 |
| LT1719CS6#TRMPBF | 功能描述:IC COMP R-RINOUT SINGLE SOT23-6 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 |
| LT1719CS6#TRPBF | 功能描述:IC COMP R-RINOUT SINGLE SOT23-6 RoHS:是 类别:集成电路 (IC) >> 线性 - 比较器 系列:UltraFast™ 标准包装:25 系列:- 类型:带电压基准 元件数:4 输出类型:CMOS，开路漏极，TTL 电压 - 电源，单路/双路(±):2 V ~ 11 V，±1 V ~ 5.5 V 电压 - 输入偏移（最小值）:10mV @ 5V 电流 - 输入偏压（最小值）:- 电流 - 输出（标准）:0.015mA @ 5V 电流 - 静态（最大值）:8.5µA CMRR, PSRR（标准）:80dB CMRR，80dB PSRR 传输延迟（最大）:12µs 磁滞:50mV 工作温度:0°C ~ 70°C 封装/外壳:16-DIP（0.300"，7.62mm） 安装类型:通孔 包装:管件 |
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