Datasheet > LTC1444

LTC1444

更新时间： 2023-12-20 18:44:52

品牌	Logo	应用领域
亚德诺 - ADI		比较器
页数	文件大小	规格书
14页	232K
描述
具基准的超低功率、四通道比较器

阅读下载

中文翻译

获取价格

数据手册

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LTC1444 数据手册

LTC1443/LTC1444/LTC1445

Ultralow Power Quad

Comparators with Reference

FeaTures

DescripTion

TheLTC^®1443/LTC1444/LTC1445areultralowpowerquad

comparators with a built-in reference. The comparators

feature less than 8.5µA supply current over temperature,

an internal reference (1.182V 1ꢀ for LTC1443 or 1.221V

1ꢀ for LTC1444/LTC1445), programmable hysteresis

(LTC1444/LTC1445) and TTL/CMOS output (LTC1443/

LTC1445) that sinks and sources current (open-drain

output for LTC1444). The reference output can drive a

bypass capacitor of up to 0.01µF without oscillation.

Ultralow Quiescent Current: 8.5µA Max

Reference Output Drives 0.01µF Capacitor

Adjustable Hysteresis (LTC1444/LTC1445)

Wide Supply Range

Single: 2V to 11V

Dual: 1V to 5.5V

Input Voltage Range Includes the Negative Supply

TTL/CMOS Compatible Outputs

Propagation Delay: 12µs (Typ) (10mV Overdrive)

No Crowbar Current

40mA Continuous Source Current

Pin Compatible Upgrades for MAX924 (LTC1443)

Low Profile (5mm × 4mm × 0.8mm) DFN Package

The comparators operate from a single 2V to 11V supply

or a dual 1V to 5.5V supply (LTC1443). Comparator

hysteresisiseasilyprogrammableusingtworesistorsand

the HYST pin (LTC1444/LTC1445). Each comparator’s

input operates from the negative supply to within 1.3V of

the positive supply. The LTC1443/LTC1445 comparator

output stage can continuously source up to 40mA. By

eliminating the cross-conducting current that normally

happenswhenthecomparatorchangeslogicstates,power

supply glitches are eliminated.

applicaTions

Battery-Powered System Monitoring

Threshold Detectors

Window Comparators

Oscillator Circuits

The LTC1443/LTC1444/LTC1445 are available in the

16-pin SO, PDIP and DFN packages.

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

Typical applicaTion

Reference Settling Test Circuit

Reference Settling

3.4M

TO 8V

IN A

–

OUT

REF

–

IN A

HYST

REF

1.21M

10k

LTC1445

OUT

144345 TA02

2ms/DIV

1.2V

2.4M

430Ω

–

1.0µF

144345 TA01

144345fe

12 3 4 5 6 7...14

中文翻译

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与LTC1444相关器件

型号	品牌	获取价格	描述	数据表
LTC1444_15	Linear	获取价格	Ultralow Power Quad Comparators with Reference
LTC1444CDHD	Linear	获取价格	Ultralow Power Quad omparators with Reference
LTC1444CDHD#PBF	Linear	获取价格	LTC1444 - Ultralow Power Quad Comparators with Reference; Package: DFN; Pins: 16; Temperat
LTC1444CDHD#TR	Linear	获取价格	LTC1444 - Ultralow Power Quad Comparators with Reference; Package: DFN; Pins: 16; Temperat
LTC1444CDHD#TRPBF	Linear	获取价格	LTC1444 - Ultralow Power Quad Comparators with Reference; Package: DFN; Pins: 16; Temperat
LTC1444CN	Linear	获取价格	Ultralow Power Quad Comparators with Reference
LTC1444CN#PBF	Linear	获取价格	LTC1444 - Ultralow Power Quad Comparators with Reference; Package: PDIP; Pins: 16; Tempera
LTC1444CN#TRPBF	Linear	获取价格	IC QUAD COMPARATOR, 10000 uV OFFSET-MAX, 5000 ns RESPONSE TIME, PDIP16, 0.300 INCH, LEAD F
LTC1444CS	Linear	获取价格	Ultralow Power Quad Comparators with Reference
LTC1444CS#PBF	Linear	获取价格	LTC1444 - Ultralow Power Quad Comparators with Reference; Package: SO; Pins: 16; Temperatu

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