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ALD4501

更新时间： 2024-01-31 05:44:56
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4页 46K
描述
QUAD PRECISION HIGH SPEED MICROPOWER TIMER

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ALD4501 技术参数

是否Rohs认证： 不符合生命周期：Contact Manufacturer
包装说明：DIE, DIE OR CHIPReach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.79Is Samacsys：N
模拟集成电路 - 其他类型：RECTANGULARJESD-30 代码：X-XUUC-N20
湿度敏感等级：1功能数量：4
端子数量：20最高工作温度：70 °C
最低工作温度：最大输出频率：2 GHz
封装主体材料：UNSPECIFIED封装代码：DIE
封装等效代码：DIE OR CHIP封装形状：UNSPECIFIED
封装形式：UNCASED CHIP峰值回流温度（摄氏度）：225
电源：5 V认证状态：Not Qualified
子类别：Analog Waveform Generation Functions最大供电电流 (Isup)：0.27 mA
最大供电电压 (Vsup)：12 V最小供电电压 (Vsup)：2 V
标称供电电压 (Vsup)：5 V表面贴装：YES
技术：CMOS温度等级：COMMERCIAL
端子形式：NO LEAD端子位置：UPPER
处于峰值回流温度下的最长时间：NOT SPECIFIEDBase Number Matches：1

ALD4501 数据手册

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A
L
D
DVANCED  
INEAR  
EVICES, INC.  
ALD4501  
QUAD PRECISION HIGH SPEED MICROPOWER TIMER  
GENERAL DESCRIPTION  
APPLICATIONS.  
The ALD4501 timer is a high performance QUAD monolithic timing circuit  
built with advanced silicon gate CMOS technology. It offers the benefits of  
high input impedance, thereby allowing smaller timing capacitors and  
longer timing cycle; high speed with typical cycle time of 500ns; low power  
dissipation for battery operated environment; and reduced supply current  
spikes allowing smaller and lower cost decoupling capacitors. Each of the  
four timers can be independently operated in either the monostable,  
astable, or 50% duty cycle mode.  
• 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. It 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)  
+
V
RST  
DSC  
1
2
3
4
5
20  
19  
18  
17  
16  
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.  
OUT  
1
1
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  
than1V),theoutputisinthelowstate.Allfourtimerssharethesamecontrol  
TRIG  
THRES  
1
1
DSC  
OUT  
2
2
THRES  
OUT  
TRIG  
2
2
15  
14  
13  
DSC  
6
7
3
3
and reset pins so that timing functions are synchronized.  
TRIG  
THRES  
3
3
FEATURES  
OUT  
4
DSC  
8
4
• High speed operation -- 2MHz typical oscillation at 5V  
• Each discharge output sinking current: 40mA at 5V  
• Guaranteed low operating supply voltage of 2 to 12V  
• Each timer is functionally equivalent to NE555 with greatly expanded  
high and low frequency ranges  
TRIG  
V
9
12  
11  
THRES  
CONT  
4
4
-
10  
DE, PE, SE PACKAGE  
• High speed, low power, monolithic CMOS technology  
• Low supply current 150µA typical  
• 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)  
+
V
RESET  
R
THRESHOLD  
CONTROL  
ORDERING INFORMATION  
Operating Temperature Range *  
R
OUTPUT  
-55°C to +125°C  
0°C to +70°C  
0°C to +70°C  
R
DISCHARGE  
S
TRIGGER  
20-Pin  
20-Pin  
20-Pin  
CERDIP  
Small Outline  
Plastic Dip  
R
Package  
Package (SOIC)  
Package  
ALD4501 DE  
ALD4501 SE  
ALD4501 PE  
-
V
* Contact factory for industrial temperature range  
© 1998 Advanced Linear Devices, Inc. 415Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com  
1234

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