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LTC1540CS8#TRPBF

更新时间： 2024-01-15 21:55:59

品牌	Logo	应用领域
凌特 - Linear		比较器放大器放大器电路光电二极管
页数	文件大小	规格书
12页	250K
描述
LTC1540 - Nanopower Comparator with Reference; Package: SO; Pins: 8; Temperature Range: 0°C to 70°C

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LTC1540CS8#TRPBF 技术参数

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LTC1540CS8#TRPBF 数据手册

LTC1540

Nanopower Comparator

with Reference

FEATURES

DESCRIPTION

The LTC^®1540 is an ultralow power, single comparator

with built-in reference. The comparator’s features

include less than 0.6µA supply current over the commer-

cial temperature range, a 1.182V ±2% reference, pro-

grammable hysteresis and TTL/CMOS outputs that sink

and source current. The reference output can drive a

bypass capacitor of up to 0.01µF without oscillation.

■

Ultralow Quiescent Current: 0.3

A Typ

■

Reference Output Drives 0.01

Adjustable Hysteresis

µF Capacitor

■

Wide Supply Range: 2V to 11V

Input Voltage Range Includes the Negative Supply

Reference Output Sources Up to 1mA

TTL/CMOS Compatible Outputs

60µs Propagation Delay with 10mV Overdrive

No Crowbar Current

40mA Continuous Source Current

Pin Compatible with LTC1440, MAX921, MAX931

The comparator operates from a single 2V to 11V supply

or a dual ±1V to ±5.5V supply. Comparator hysteresis is

easily programmed by using two resistors and the HYST

pin. Each comparator’s input operates from the negative

supply to within 1.3V of the positive supply. The compara-

tor output stage can continuously source up to 40mA. By

eliminating the cross-conducting current that normally

occur when the comparator changes logic states, power

supply glitches are eliminated.

APPLICATIONS

■

Battery-Powered System Monitoring

■

Threshold Detectors

■

Window Comparators

Oscillator Circuits

The LTC1540 is available in the 8-pin MSOP and SO

packages.

■

, LTC and LT are registered trademarks of Linear Technology Corporation.

TYPICAL APPLICATION

Nanopower 2.9V V_CCThreshold Detector

LTC1540 Supply Current vs Temperature

3.3V

0.50

= 5V

–

= GND = 0V

4.32M

0.45

0.40

0.35

0.30

0.25

0.20

0.15

LTC1540

–

OUT

HYST

REF

–

–40 –20

TEMPERATURE (°C)

100

GND

1540 • TA02

1540

• TA01

12 3 4 5 6 7...12

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