LMP7300

更新时间： 2024-11-23 03:43:43

品牌	Logo	应用领域
美国国家半导体 - NSC		比较器
页数	文件大小	规格书
14页	903K
描述
Micropower Precision Comparator and Precision Reference with Adjustable Hysteresis

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LMP7300 数据手册

September 2007

LMP7300

Micropower Precision Comparator and Precision

Reference with Adjustable Hysteresis

General Description

Features

The LMP7300 is a combination comparator and reference

with ideal specifications for precision threshold detecting. The

precision 2.048V reference comes with a 0.25% maximum

error. The comparator features micopower (35 µW), low offset

voltage (.75 mV max), and independent adjustable positive

and negative hysteresis.

(For V_S= 5V, typical unless otherwise noted)

Supply current

Propagation delay

Input offset voltage

CMRR

13 μA

4 μs

0.3 mV

100 dB

■

PSRR

■

Hysteresis control for the comparator is accomplished

through two external pins. The HYSTP pin sets the positive

hysteresis and the HYSTN pin sets the negative hysteresis.

The comparator design isolates the V_INsource impedance

and the programmable hysteresis components. This isolation

prevents any undesirable interaction allowing the IC to main-

tain a precise threshold voltage during level detection.

Positive and negative hysteresis control

Adjustable hysteresis

Reference voltage

Reference voltage accuracy

Reference voltage source current

Wide supply voltage range

Operating temperature range ambient −40°C to 125°C

■

1 mV/mV

2.048V

0.25%

1 mA

2.7V to 12V

■

The combination of low offset voltage, external hysteresis

control, and precision voltage reference provides an easy to

use micropower precision threshold detector.

Applications

The LMP7300 open collector output makes it ideal for mixed

voltage system designs. The output voltage upper rail is un-

constrained by V_CCand can be pulled above V_CCto a maxi-

mum of 12V. The LMP7300 is a member of the LMP^®

precision amplifier family.

Precision threshold detection

■

Battery monitoring

Battery management systems

Zero crossing detectors

Typical Application

Micropower Precision Battery Low Voltage Detector for 3

Cell Discharge Voltage

20175642

20175646

LMP^®is a registered trademark of National Semiconductor Corporation.

201756

www.national.com

12 3 4 5 6 7...14

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与LMP7300相关器件

型号	品牌	获取价格	描述	数据表
LMP7300_08	NSC	获取价格	Micropower Precision Comparator and Precision Reference with Adjustable Hysteresis
LMP7300_14	TI	获取价格	Micropower Precision Comparator and Precision Reference with Adjustable Hysteresis
LMP7300MA	TI	获取价格	Micropower Precision Comparator and Precision Reference with Adjustable Hysteresis
LMP7300MA	NSC	获取价格	Micropower Precision Comparator and Precision Reference with Adjustable Hysteresis
LMP7300MA/NOPB	TI	获取价格	具有可调节迟滞功能的精密微功耗单路比较器 \| D \| 8 \| -40 to 125
LMP7300MAX	NSC	获取价格	Micropower Precision Comparator and Precision Reference with Adjustable Hysteresis
LMP7300MAX/NOPB	TI	获取价格	具有可调节迟滞功能的精密微功耗单路比较器 \| D \| 8 \| -40 to 125
LMP7300MM	NSC	获取价格	Micropower Precision Comparator and Precision Reference with Adjustable Hysteresis
LMP7300MM/NOPB	TI	获取价格	Micropower Precision Comparator and Precision Reference with Adjustable Hysteresis 8-VSSOP
LMP7300MME/NOPB	TI	获取价格	具有可调节迟滞功能的精密微功耗单路比较器 \| DGK \| 8 \| -40 to 125

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