Datasheet > ALD1502

ALD1502

更新时间： 2024-10-27 22:47:47

品牌	Logo	应用领域
先进线性 - ALD		/
页数	文件大小	规格书
4页	42K
描述
SINGLE/DUAL PRECISION HIGH SPEED MICROPOWER TIMER

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中文翻译

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数据手册

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ALD1502 数据手册

DVANCED

INEAR

EVICES, INC.

ALD1502/ALD2502

SINGLE/DUAL PRECISION HIGH SPEED MICROPOWER TIMER

GENERAL DESCRIPTION

APPLICATIONS

The ALD1502/ALD2502 timers are high performance single/dual mono-

lithic timing circuits built with advanced silicon gate CMOS technology.

They offer the benefits of high input impedance, thereby allowing smaller

timing capacitors and a longer timing cycle; high speed, with typical cycle

time of 400ns; low power dissipation for battery operated environment;

reduced supply current spikes, allowing smaller and lower cost decoupling

capacitors.

• High speed one-shot (monostable)

pulse generation

• Precision timing

• Sequential timing

• Long delay timer

• Pulse width and pulse position

modulation

• Missing pulse detector

• Frequency divider

• Synchronized timer

Each timer is capable of producing accurate time delays and oscillations in

both monostable and astable operation, and operates in the one-shot

(monostable) mode or 50% duty cycle free running oscillation mode with a

single resistor and one capacitor. The inputs and outputs are fully

compatible with CMOS, NMOS or TTL logic.

PIN CONFIGURATION

There are three matched internal resistors (approximately 200KΩ each)

that set the threshold and trigger levels at two-thirds and one-third respec-

tively of V . These levels can be adjusted by using the control terminal.

GND

TRIG

OUT

RST

DISC

When the trigger input is below the trigger level, the output is in the high

state and sourcing 2mA. When the threshold input is above the threshold

levelatthesametimethetriggerinputisabovethetriggerlevel, theinternal

flip-flopisreset, theoutputgoestothelowstateandsinksupto10mA. The

resetinputoverridesallotherinputsandwhenitisactive(resetvoltageless

than 1V), the output is in the low state.

THRES

CONT

TOP VIEW

DA, PA, SA PACKAGE

DSC

FEATURES

THRES

13 DSC

• High speed operation -- 2.5MHz typical oscillation at 5V

• High discharge sinking current of 80mA at 5V

• Guaranteed low operating supply voltage of 2V to 12V

• Functional equivalent to and same pin-out as NE555/NE556

with greatly expanded high and low frequency ranges

• High speed, low power, monolithic CMOS technology

• Low supply current 50µA typical for ALD1502

and100µA typical for ALD2502

CONT

RST

12 THRES

CONT

OUT

RST

OUT

TRIG

GND

TRIG

TOP VIEW

DB, PB, SB PACKAGE

• Extremely low trigger, threshold and reset currents 10pA typical

• Operates in both monostable and astable modes

• Fixed 50% duty cycle or adjustable duty cycle

• CMOS, NMOS and TTL compatible input/output

• Low supply current spikes

BLOCK DIAGRAM (EACH TIMER)

(8)

RESET

(4)

ORDERING INFORMATION

Operating Temperature Range *

THRESHOLD

(6)

-55°C to +125°C

0°C to +70°C

CONTROL

(5)

OUTPUT

(3)

8-Pin

8-Pin Small Outline 8-Pin Plastic Dip

DISCHARGE

(7)

CERDIP Package

ALD1502 DA

Package (SOIC)

ALD1502 SA

Package

ALD1502PA

TRIGGER

(2)

14-Pin

14-Pin Small Outline 14-Pin Plastic Dip

CERDIP Package

ALD2502 DB

Package (SOIC)

ALD2502 SB

Package

ALD2502 PB

GND

(1)

* Contact factory for industrial temperature range

12 3 4

中文翻译

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与ALD1502相关器件

型号	品牌	获取价格	描述	数据表
ALD1502DA	ALD	获取价格	SINGLE/DUAL PRECISION HIGH SPEED MICROPOWER TIMER
ALD1502PA	ALD	获取价格	SINGLE/DUAL PRECISION HIGH SPEED MICROPOWER TIMER
ALD1502SA	ALD	获取价格	SINGLE/DUAL PRECISION HIGH SPEED MICROPOWER TIMER
ALD1504DA	ETC	获取价格	Analog Timer Circuit
ALD1504PA	ETC	获取价格	Analog Timer Circuit
ALD1504SA	ETC	获取价格	Analog Timer Circuit
ALD-156.250MHZ-D-K-V	ABRACON	获取价格	Oscillator
ALD-156.250MHZ-D-K-V-A-T	ABRACON	获取价格	Oscillator
ALD-156.250MHZ-D-R-C	ABRACON	获取价格	Oscillator
ALD-156.250MHZ-D-V	ABRACON	获取价格	Oscillator

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