Datasheet > ADCMP341_07

ADCMP341_07

更新时间： 2024-11-24 04:04:31

品牌	Logo	应用领域
亚德诺 - ADI		比较器
页数	文件大小	规格书
12页	353K
描述
Dual 0.275% Comparators and Reference with Programmable Hysteresis

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ADCMP341_07 数据手册

Dual 0.275% Comparators and Reference

with Programmable Hysteresis

ADCMP341/ADCMP343

FEATURES

FUNCTIONAL BLOCK DIAGRAMS

400 mV 0.275% threshold

User programmable hysteresis via resistor string

Supply range: 1.7 V to 5.5 V

Low quiescent current: 6.5 μA typical

Input range includes ground

Low input bias current: 5 nA maximum

Open-drain outputs

Supports wired-AND connections

Input polarities:

ADCMP341 noninverting

ADCMP341

VINA

+INA_U

+INA_L

OUTA

OUTB

400mV

VINB

+INB_U

+INB_L

ADCMP343 inverting

Small SOT-23 package

GND

APPLICATIONS

Figure 1. ADCMP341

Portable applications

Li-Ion monitoring

Handheld instruments

LED/relay driving

Optoisolator driving

Control systems

ADCMP343

VINA

–INA_U

–INA_L

OUTA

OUTB

GENERAL DESCRIPTION

400mV

The ADCMP341/ADCMP343 consist of two low power, high

accuracy comparators with a 400 mV reference in an 8-lead

SOT-23 package. Operating within a supply range of 1.7 V to

5.5 V, the devices only draw 6.5 μA (typical), making them ideal

for low voltage system monitoring and portable applications.

VINB

–INB_U

–INB_L

Hysteresis is determined using three resistors in a string configura-

tion with the upper and lower tap points connected to the

± ±IA_U and ± ±IA_L pins of each comparator, respectively.

The state of the outputs of the comparators selects which pin is

internally connected to the comparators input. Therefore, a

change of state in the comparators output results in one of the

inputs being switched in to the comparator and the other being

switched out. This provides the user with a fully flexible and

accurate method of setting the hysteresis. One input of each

comparator is internally connected to the reference. The other

input is available externally, via an internal mux, through pins

± ±IA_U or ± ±IA_L. The state of the output determines which

of these pins is connected at any one time.

GND

Figure 2. ADCMP343

R1 = 22kΩ

R2 = 2.2kΩ

R3 = 6.2kΩ

OUTA

The comparator outputs are open-drain with the output stage

sinking capability guaranteed greater than 5 mA over temperature.

The ADCMP341 has noninverting inputs and the ADCMP343

has inverting inputs. The devices are suitable for portable,

commercial, industrial, and automotive applications.

CH1 2.00V

CH2 500mV

M100ms

Figure 3. Hysteresis programmed to 513 mV @ V_INon ADCMP341

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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与ADCMP341_07相关器件

型号	品牌	获取价格	描述	数据表
ADCMP341_15	ADI	获取价格	Comparators and Reference with Programmable Hysteresis
ADCMP341ARJ	ADI	获取价格	Dual Comparators with 400mV Reference and programmable Hysteresis
ADCMP341YRJZ-REEL7	ADI	获取价格	Dual 0.275% Comparators and Reference with Programmable Hysteresis
ADCMP343	ADI	获取价格	Dual Comparators with 400mV Reference and programmable Hysteresis
ADCMP343_15	ADI	获取价格	Comparators and Reference with Programmable Hysteresis
ADCMP343ARJ	ADI	获取价格	Dual Comparators with 400mV Reference and programmable Hysteresis
ADCMP343YRJZ-REEL7	ADI	获取价格	Dual 0.275% Comparators and Reference with Programmable Hysteresis
ADCMP350	ADI	获取价格	Comparator and Reference Circuits
ADCMP350_04	ADI	获取价格	Comparators and Reference Circuits
ADCMP350AKS	ADI	获取价格	Comparator and Reference Circuits

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