Datasheet > MC14578P

MC14578P

更新时间： 2024-09-09 04:59:27

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		比较器放大器光电二极管
页数	文件大小	规格书
8页	183K
描述
CMOS Micro-Power Comparator plus Voltage Follower

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MC14578P 数据手册

MC14578

Rev 2, 05/2005

Freescale Semiconductor

Technical Data

MC14578

CMOS

Micro-Power Comparator plus

Voltage Follower

CMOS

MICRO-POWER COMPARATOR

PLUS VOLTAGE FOLLOWER

The MC14578 is an analog building block consisting of a very-high input

impedance comparator. The voltage follower allows monitoring the noninverting

input of the comparator without loading.

Four enhancement-mode MOSFETs are also included on chip. These FETs

can be externally configured as open-drain or totem-pole outputs. The drains

have on-chip static-protecting diodes. Therefore, the output voltage must be

maintained between V_SSand V_DD

The chip requires one external component. A 3.9 MΩ ±10% resistor must be

connected from the R_biaspin to V_DD. This circuit is designed to operate in smoke

detector systems that comply with UL217 and UL268 specifications.

P SUFFIX

Features

PLASTIC DIP

CASE 648-08

•

Applications:

Pulse Shapers

Line-Powered Smoke Detectors

Liquid/Moisture Sensors

CO Detector and Micro Interface

Threshold Detectors

Low-Battery Detectors

•

Operating Voltage Range: 3.5 to 14 V

Operating Temperature Range: -30° to 70°C

Input Current (IN + Pin): ±1 pA @ 25°C (DIP Only)

Quiescent Current: 10 µA @ 25°C

Comp OUT

IN A

IN +

IN B

Buff OUT

IN–

Electrostatic Discharge (ESD) Protection Circuitry on All Pins

OUT A

OUT B

bias

ORDERING INFORMATION

Temperature

IN C

V_SS

Device

Case No.

Package

OUT C1

OUT C2

Range

MC14578P

-30° to 70°C

648-08

Plastic Dip

Figure 1. Pin Connections

12 3 4 5 6 7 8

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