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.

Hysteresis is determined using three resistors in a string configuration with the upper and lower tap points connected to the ±INA_U and ±INA_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 ±INA_U or ±INA_L. The state of the output determines which of these pins is connected at any one time.

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.

Applications

Portable applications

Li-Ion monitoring

Handheld instruments

LED/relay driving

Optoisolator driving

Control systems

Data Sheet, Rev. 0, 2/07

Part#	Reset Threshold (V)	Min Reset Timeout (ms)	Reset Output-Stage	Backup-Battery Switch	Chip Enable Gating	Typ Watchdog Timeout (ms)	Package	Product Description	Price* (1000-4999)
ADM690	4.65	35	Active-Low/Push-Pull	Yes	---	100, 1,600	DIP	Supervisory Circuit w/ 4.65V Reset, Battery Switchover, Watchdog Timer, Power Fail Input	$2.39
ADM690A	4.65	140	Active-Low/Push-Pull	Yes	---	1,600	DIP, SOIC, SOP	µP Supervisor with Backup-Battery Switchover, Watchdog Feature, Power-Fail Warning, 4.65V Threshold	$1.50
ADM691	4.65	35 (Adjustable)	Active-High/Push-Pull, Active-Low/Push-Pull	Yes	Yes	100, 1,600, adj.	DIP, SOIC	Microprocessor Supervisor w/ Watchdog Timer, Reset Generator and Battery Steering	$2.70
ADM691A	4.65	140 (Adjustable)	Active-High/Open-Drain, Active-Low/Push-Pull	Yes	Yes	100, 1,600, adj.	DIP, SOIC, SOP	µP Supervisor with Battery Backup, Watchdog, Power Fail Indicator & Reset Generator	$1.66
ADM692	4.4	35	Active-Low/Push-Pull	Yes	---	100, 1,600, adj.	DIP	µP Supervisor with Backup Battery Switchover, Watchdog, Power Fail Warning, Reset Generator	$2.39
ADM692A	4.4	140	Active-Low/Push-Pull	Yes	---	1,600	DIP, SOIC	µP Supervisor w/ Battery Steering, Watchdog, Pwr Fail Warning, Active Low Reset, 250mA Iout	$1.66
ADM693	4.4	35 (Adjustable)	Active-High/Push-Pull, Active-Low/Push-Pull	Yes	Yes	100, 1,600, adj.	DIP, SOIC	µP Supervisor with Backup Battery Switchover, Watchdog, Pwr Fail Warning, 4.4V Threshold, 100mA	$2.70
ADM693A	4.4	140 (Adjustable)	Active-High/Open-Drain, Active-Low/Push-Pull	Yes	Yes	100, 1,600, adj.	DIP, SOIC	µP Supervisor w/ Backup Battery Switchover, Watchdog, Pwr Fail Warning, 4.4V Threshold, 250mA Iout	$1.83
ADM694	4.65	140	Active-Low/Push-Pull	Yes	---	100, 1,600, adj.	DIP	µP Supervisor w/ Backup Battery Switching, Watchdog, Power Fail Flag, 4.65V Vth, 100mA Iout	$2.50
ADM695	4.65	140 (Adjustable)	Active-High/Push-Pull, Active-Low/Push-Pull	Yes	Yes	100, 1,600, adj.	DIP, SOIC	µP Supv w/ Backup Batt Ckt, Adj RST Period, Adj Watchdog Period, CE Inputs, 4.65V Vth, 100 mA Iout	$2.70
ADM696	1.3, Adjustable	35	Active-High/Push-Pull, Active-Low/Push-Pull	Yes	---	100, 1,600, adj.	DIP, SOIC	µP Supv w/ Backup Battery Switchover, Adj Low Line V Monitor, Adj Watchdog Timer, 100 mA Iout	$2.60
ADM697	1.3, Adjustable	35	Active-High/Push-Pull, Active-Low/Push-Pull	No	Yes	100, 1,600, adj.	DIP, SOIC	µP Supv with CE Inputs, Adj Low Line V Monitor, Adj W-dog Timer, Low Line, Pwr Fail & W-dog Status	$2.60
ADM800	4.3, 4.55	140 (Adjustable)	Active-High/Open-Drain, Active-Low/Push-Pull	Yes	Yes	100, 1,600, adj.	DIP, SOIC	µP Supv w/ Backup Battery Switchover, Adj Reset &Watchdog Periods, CE Inputs, 4.4V/4.65V Threshold	$2.30
ADM802	4.4, 4.65	140	Active-Low/Push-Pull	Yes	---	1,600	DIP, SOIC	µP Supv w/ Backup Battery Switchover, Power Fail Flag, 4.4V/4.65V Threshold, 250mA Output Current	$2.20
ADM805	4.4, 4.65	140	Active-High/Push-Pull	Yes	---	1,600	DIP, SOIC	µP Supv w/ Backup Battery Switchover, Watchdog, Power Fail Flag, 4.4V/4.65V Threshold, 250mA Iout	$2.20
ADM8690	4.65	35	Active-Low/Push-Pull	Yes	---	100, 1,600	DIP, SOIC	uP Supv Ckt, Watchdog Timer, Backup Battery Switching, 4.65V Reset Trip Voltage, 8-Pin DIP & SOIC	$2.49
ADM8691	4.65	35 (Adjustable)	Active-High/Push-Pull, Active-Low/Push-Pull	Yes	Yes	100, 1,600, adj.	DIP, SOIC, SOP	µP Supv w/ Backup Batt Switch, Adj Reset Period, Adj Watchdog Period, 4.65V Trip point, 100 mA Iout	$2.98
ADM8692	4.4	35	Active-Low/Push-Pull	Yes	---	100, 1,600	DIP, SOIC	µP Supv w/ Backup Battery Switch, Watchdog, Power Fail Flag, 4.4V Vth, Active Low Reset, 100mA Iout	$2.69
ADM8693	4.4	35 (Adjustable)	Active-High/Push-Pull, Active-Low/Push-Pull	Yes	Yes	100, 1,600, adj.	DIP, SOIC, SOP	µP Supervisor w/ Backup Battery Switching, Watchdog, Pwr Fail Flag, 4.4V Vth, 100mA Iout	$2.69
ADM8694	4.65	140	Active-Low/Push-Pull	Yes	---	100, 1,600	DIP, SOIC	µP Supervisor w/ Backup Battery Switch, Watchdog, Pwr Fail Flag, 4.65V Vth, 100mA Iout	$2.69
ADM8695	4.65	140 (Adjustable)	Active-High/Push-Pull, Active-Low/Push-Pull	Yes	Yes	100, 1,600, adj.	DIP, SOIC	µP Supervisor w/ Backup Battery Switch, Adj Reset Period, Adj Watchdog Period, 4.65V Trip Voltage	$2.16
ADM8696	1.3, Adjustable	35 (Adjustable)	Active-High/Push-Pull, Active-Low/Push-Pull	Yes	---	100, 1,600, adj.	DIP, SOIC, SOP	µP Supv w/ Backup Batt Switch, Adj Low Line V Monitor, Adj Watchdog Timer, Pwr Fail& Watchdog Status	$2.69
ADM8697	1.3, Adjustable	35 (Adjustable)	Active-High/Push-Pull, Active-Low/Push-Pull	No	Yes	100, 1,600, adj.	DIP, SOIC, SOP	µP Supv w/ CE Inputs, Adj Low Line V Monitor, Adj Watchdog Timer; Low Line, Pwr Fail&Watchdog Status	$2.69

* 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

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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