The ADM705/ADM706/ADM707/ADM708 are low cost microprocessor supervisory circuits. They are suitable for monitoring the 5 V power supply/battery and can also monitor microprocessor activity.

The ADM705/ADM706 provide the following functions:

Power-on reset output during power-up, power-down, and brownout conditions. The RESET output remains operational with V_CC as low as 1 V.

Independent watchdog timeout, WDO, that goes low if the watchdog input has not been toggled within 1.6 seconds.

A 1.25 V threshold detector for power-fail warning, low battery detection, or to monitor a power supply other than 5 V.

An active low debounced manual reset input (MR).

The ADM707/ADM708 differ in that

A watchdog timer function is not available.

An active high reset output is available in addition to the active low output.

Two supply voltage monitor levels are available. The ADM705/ADM707 generate a reset when the supply voltage falls below 4.65 V, while the ADM706/ADM708 require that the supply fall below 4.40 V before a reset is issued.

All parts are available in 8-lead PDIP (N-8) and SOIC (R-8) packages, with the ADM708 also available in an MSOP (RM-8) package.

Applications

Microprocessor systems

Computers

Controllers

Intelligent instruments

Automotive systems

Critical microprocessor supply monitoring

Data Sheet, Rev. F, 2/07

Part#	Reset Threshold (V)	Min Reset Timeout (ms)	Reset Output-Stage	Manual Reset Capability	Package	Price* (1000-4999)
ADM1810	4.35, 4.62	100	Active-Low/Push-Pull	No	SC70, SOT	$0.45
ADM1811	4.35, 4.62	100	Active-Low/Int-Pullup	No	SC70, SOT	$0.45
ADM1812	4.35, 4.62	100	Active-High/Push-Pull	No	SC70, SOT	$0.45
ADM1813	4.35, 4.62	100	Active-Low/Int-Pullup	Yes	SC70, SOT	$0.39
ADM1815	2.18, 2.31, 2.55, 2.88, 3.06	100	Active-High/Push-Pull	No	SC70, SOT	$0.39
ADM1816	2.18, 2.31, 2.55, 2.88, 3.06	100	Active-Low/Int-Pullup	No	SC70, SOT	$0.45
ADM1817	2.18, 2.31, 2.55, 2.88, 3.06	100	Active-High/Push-Pull	No	SC70, SOT	$0.45
ADM1818	2.18, 2.31, 2.55, 2.88, 3.06	100	Active-Low/Int-Pullup	Yes	SC70, SOT	$0.44
ADM6315	2.63, 2.93, 3.08, 4.39, 4.5, 4.63	1, 1,120, 140, 20	Active-Low/Open-Drain	Yes	SOT	$0.80
ADM6319	2.5, 2.63, 2.7, 2.8, 2.93, 3.0, 3.08, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.39, 4.5, 4.63, 4.7, 4.8, 4.9, 5.0	1, 1,120, 140, 20	Active-High/Push-Pull, Active-Low/Push-Pull	Yes	SOT	$0.50
ADM6322	2.5, 2.63, 2.7, 2.8, 2.93, 3.0, 3.08, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.39, 4.5, 4.63, 4.7, 4.8, 4.9, 5.0	1, 1,200, 140, 20	Active-High/Push-Pull, Active-Low/Open-Drain	Yes	SOT	$0.50
ADM6384	1.58, 1.67, 2.19, 2.31, 2.4, 2.5, 2.63, 2.7, 2.8, 2.93, 3.0, 3.08, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.39, 4.5, 4.63, 4.7, 4.8, 4.9, 5.0	1, 1,120, 140, 20	Active-Low/Push-Pull	Yes	SC70	$0.94
ADM6711	2.32, 2.63, 2.93, 3.08, 4.38, 4.63	140	Active-Low/Push-Pull	Yes	SC70	$0.26
ADM6713	2.32, 2.63, 2.93, 3.08, 4.38, 4.63	140	Active-Low/Open-Drain	Yes	SC70	$0.28
ADM6825	1.58, 1.67, 2.19, 2.32, 2.63, 2.93, 3.08, 4.38, 4.63	140	Active-High/Push-Pull, Active-Low/Push-Pull	Yes	SOT	-
ADM698	4.65	140	Active-High/Push-Pull, Active-Low/Push-Pull	No	DIP, SOIC	$1.35
ADM707	4.65	160	Active-High/Push-Pull, Active-Low/Push-Pull	Yes	DIP, SOIC	$0.96
ADM708	2.63, 2.93, 3.08, 4.4, 4.65	160	Active-High/Push-Pull, Active-Low/Push-Pull	Yes	DIP, SOIC, SOP	$0.84
ADM709	2.63, 2.93, 3.08, 4.4, 4.65	140	Active-Low/Push-Pull	No	DIP, SOIC	$0.70
ADM803	2.32, 2.63, 2.93, 3.08, 4.38, 4.63	140	Active-Low/Open-Drain	No	SC70	$0.26
ADM809	2.32, 2.63, 2.93, 3.08, 4.0, 4.38, 4.63	140	Active-Low/Push-Pull	No	SC70, SOT	$0.61
ADM810	2.32, 2.63, 2.93, 3.08, 4.0, 4.38, 4.63	140	Active-High/Push-Pull	No	SC70, SOT	$0.60
ADM811	2.32, 2.63, 2.93, 3.08, 4.38, 4.63	140	Active-Low/Push-Pull	Yes	SOT	$0.45
ADM812	2.32, 2.63, 2.93, 3.08, 4.38, 4.63	140	Active-High/Push-Pull	Yes	SOT	$0.45
ADM825	2.19, 2.32, 2.63, 2.93, 3.08, 4.38, 4.63	140	Active-High/Push-Pull, Active-Low/Push-Pull	Yes	SC70, SOT	$0.50
ADM8698	4.65	140	Active-High/Push-Pull, Active-Low/Push-Pull	No	DIP, SOIC	$1.99

* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

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For detailed drawings and chemical composition please consult our  Package Site

Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

This is the acceptable operating range of the device. The various ranges specified are as follows:

• Commercial: 0 to +70 degrees Celsius
• Military : -55 to +125 degrees Celsius
• Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
• Automotive: -40 to +125 degrees Celsius

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