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參數(shù)資料
| 型號(hào)： | LT1721IS |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類(lèi)： | 運(yùn)動(dòng)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(yè)數(shù)： | 3/28頁(yè) |
| 文件大?。?/td> | 317K |
| 代理商： | LT1721IS |
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3
LT1720/LT1721
ELECTRICAL CHARACTERISTICS
range, otherwise specifications are at T
A
= 25
°
C. V
CC
= 5V, V
CM
= 1V, C
OUT
= 10pF, V
OVERDRIVE
= 20mV, unless otherwise specified.
The
G
denotes specifications that apply over the full operating temperature
SYMBOL
I
B
I
OS
CMRR
PSRR
A
V
V
OH
V
OL
I
CC
PARAMETER
Input Bias Current
Input Offset Current
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Voltage Gain
Output High Voltage
Output Low Voltage
Supply Current (Per Comparator)
CONDITIONS
MIN
–6
TYP
MAX
0
0.6
UNITS
G
μ
A
μ
A
dB
dB
G
(Note 4)
(Note 5)
(Note 6)
I
SOURCE
= 4mA, V
IN
= V
TRIP+
+ 10mV
I
SINK
= 10mA, V
IN
= V
TRIP–
– 10mV
V
CC
= 5V
V
CC
= 3V
V
OVERDRIVE
= 20mV (Note 7)
G
55
65
70
80
∞
G
G
V
CC
– 0.4
V
V
G
0.4
7
6
6.5
8.0
10
13
1.0
1.5
G
G
4
mA
mA
ns
ns
ns
ns
ns
ns
ns
ns
3.5
4.5
t
PD20
Propagation Delay
G
t
PD5
Propagation Delay
V
OVERDRIVE
= 5mV (Notes 7, 8)
7
G
t
PD
t
SKEW
t
r
t
f
t
JITTER
Differential Propagation Delay
Propagation Delay Skew
Output Rise Time
Output Fall Time
Output Timing Jitter
(Note 9) Between Channels
(Note 10) Between t
PD+
/t
PD–
10% to 90%
90% to 10%
V
IN
= 1.2V
P-P
(6dBm), Z
IN
= 50
t
PD+
V
CM
= 2V, f = 20MHz t
PD–
V
OVERDRIVE
= 50mV, V
CC
= 3V
V
OVERDRIVE
= 50mV, V
CC
= 5V
0.3
0.5
2.5
2.2
15
11
70.0
62.5
ps
RMS
ps
RMS
MHz
MHz
f
MAX
Maximum Toggle Frequency
Note 1:
Absolute Maximum Ratings are those values beyond which the
life of a device may be impaired.
Note 2:
If one input is within these common mode limits, the other
input can go outside the common mode limits and the output will be
valid.
Note 3:
The LT1720/LT1721 comparators include internal hysteresis.
The trip points are the input voltage needed to change the output state
in each direction. The offset voltage is defined as the average of V
TRIP+
and V
TRIP–
, while the hysteresis voltage is the difference of these two.
Note 4:
The common mode rejection ratio is measured with V
CC
= 5V
and is defined as the change in offset voltage measured from V
CM
=
–0.1V to V
CM
= 3.8V, divided by 3.9V.
Note 5:
The power supply rejection ratio is measured with V
CM
= 1V
and is defined as the change in offset voltage measured from V
CC
=
2.7V to V
CC
= 6V, divided by 3.3V.
Note 6:
Because of internal hysteresis, there is no small-signal region
in which to measure gain. Proper operation of internal circuity is
ensured by measuring V
OH
and V
OL
with only 10mV of overdrive.
Note 7:
Propagation delay measurements made with 100mV steps.
Overdrive is measured relative to V
TRIP
±
.
Note 8:
t
PD
cannot be measured in automatic handling equipment with
low values of overdrive. The LT1720/LT1721 are 100% tested with a
100mV step and 20mV overdrive. Correlation tests have shown that
t
PD
limits can be guaranteed with this test, if additional DC tests are
performed to guarantee that all internal bias conditions are correct.
Note 9:
Differential propagation delay is defined as the larger of the
two:
t
PDLH
= t
PDLH(MAX)
– t
PDLH(MIN)
t
PDHL
= t
PDHL(MAX)
– t
PDHL(MIN)
where (MAX) and (MIN) denote the maximum and minimum values of
a given measurement across the different comparator channels.
Note 10:
Propagation Delay Skew is defined as:
t
SKEW
= |t
PDLH
– t
PDHL
|
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| LT1721IS#PBF | 功能描述:IC COMP R-RINOUT QUAD 16-SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> 線(xiàn)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(lèi)型:通用 元件數(shù):1 輸出類(lèi)型:CMOS，推挽式，滿(mǎn)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(lèi)型:表面貼裝 包裝:管件 其它名稱(chēng):Q3554586 |
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