ADM708S

更新时间： 2024-02-13 20:31:16

品牌	Logo	应用领域
亚德诺 - ADI		监控
页数	文件大小	规格书
8页	128K
描述
+3 V, Voltage Monitoring uP Supervisory Circuits

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ADM708S 技术参数

生命周期：	Obsolete	零件包装代码：	SOIC
包装说明：	SOP,	针数：	8
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.67
其他特性：	MANUAL RESET OPTION	可调阈值：	NO
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	JESD-30 代码：	R-PDSO-G8
长度：	4.9 mm	信道数量：	1
功能数量：	1	端子数量：	8
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
认证状态：	Not Qualified	座面最大高度：	1.75 mm
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	3.15 V
标称供电电压 (Vsup)：	3.3 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
宽度：	3.9 mm	Base Number Matches：	1

ADM708S 数据手册

+3 V, Voltage Monitoring

␮P Supervisory Circuits

ADM706P/R/S/T, ADM708R/S/T

FUNCTIONAL BLOCK DIAGRAMS

FEATURES

Precision Supply-Voltage Monitor

+2.63 V (ADM706P/R, ADM708R)

+2.93 V (ADM706S, ADM708S)

+3.08 V (ADM706T, ADM708T)

100 ␮A Quiescent Current

WATCHDOG

OUTPUT(WDO)

WATCHDOG

TIMER

INPUT (WDI)

TRANSITION

DETECTOR

RESET &

WATCHDOG

TIMEBASE

200 ms Reset Pulsewidth

Debounced Manual Reset Input (MR)

Independent Watchdog Timer—1.6 sec Timeout

(ADM706x)

70␮A

RESET

GENERATOR

RESET,

(P = RESET)

Reset Output

Active High (ADM706P)

Active Low (ADM706R/S/T)

Both Active High and Active Low (ADM708R/S/T)

Voltage Monitor for Power-Fail or Low Battery Warning

Guaranteed RESET Valid with V_CC= 1 V

Superior Upgrade for MAX706P/R/S/T, MAX708R/S/T

REF

ADM706

POWER FAIL

INPUT (PFI)

POWER FAIL

OUTPUT (PFO)

1.25V

*VOLTAGE REFERENCE = 2.63V (P/R), 2.93V (S), 3.08V (T)

APPLICATIONS

Microprocessor Systems

Computers

Controllers

RESET

Intelligent Instruments

Critical ␮P Monitoring

Automotive Systems

Battery Operated Systems

Portable Instruments

70␮A

RESET

GENERATOR

RESET

REF

ADM708

GENERAL DESCRIPTION

POWER FAIL

INPUT (PFI)

The ADM706P/R/S/T and the ADM708R/S/T microprocessor

supervisory circuits are suitable for monitoring either 3 V or 3.3 V

power supplies.

POWER FAIL

OUTPUT (PFO)

1.25V

*VOLTAGE REFERENCE = 2.63V (R), 2.93V (S), 3.08V (T)

The ADM706P/R/S/T provide the following functions:

1. Power-supply monitoring circuitry which generates a Reset

output during power-up, power-down and brownout condi-

tions. The reset output remains operational with V_CCas low

as 1 V.

The ADM708R/S/T provide the same functionality as the

ADM706R/S/T and only differ in that:

1. A watchdog timer function is not available.

2. Independent watchdog monitoring circuitry which is acti-

vated if the watchdog input has not been toggled within

1.6 seconds.

2. An active high reset output (RESET) in addition to the

active low (RESET) output is available.

All parts are available in 8-lead DIP and narrow SOIC packages.

3. A 1.25 V threshold detector for power fail warning, low bat-

tery detection, or to monitor an additional power supply.

4. An active low debounced manual reset input (MR).

The ADM706R, ADM706S, ADM706T are identical except for

the reset threshold monitor levels which are 2.63 V, 2.93 V, and

3.08 V respectively. The ADM706P is identical to the ADM706R

in that the reset threshold is 2.63 V. It differs only in that it has

an active high reset output.

REV. A

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

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

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

Tel: 781/329-4700

Fax: 781/326-8703

World Wide Web Site: http://www.analog.com

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