LTC1326 Series

Micropower Precision Triple Supply Monitor

Catalog

Micropower Precision Triple Supply Monitor

Part	Supplier Device Package	Number of Voltages Monitored	Type	Mounting Type	Voltage - Threshold	Voltage - Threshold	Reset	Operating Temperature [Max]	Operating Temperature [Min]	Output	Reset Timeout [Min]	Package / Case	Package / Case [custom]	Package / Case	Package / Case [y]	Package / Case [x]
Analog Devices LTC1326CMS8#PBF	8-MSOP	3	Multi-Voltage Supervisor	Surface Mount	Adj	3.118 V 4.725 V	Active High/Active Low	70 °C	0 °C	Open Drain or Open Collector	140 ms	8-MSOP 8-TSSOP	0.118 in	3 mm
Analog Devices LTC1326CMS8-2.5#PBF	8-MSOP	3	Multi-Voltage Supervisor	Surface Mount	Adj	2.363 V 3.118 V	Active High/Active Low	70 °C	0 °C	Open Drain or Open Collector	140 ms	8-MSOP 8-TSSOP	0.118 in	3 mm
Analog Devices LTC1326IMS8#TRPBF	8-MSOP	3	Multi-Voltage Supervisor	Surface Mount	Adj	3.118 V 4.725 V	Active High/Active Low	85 °C	-40 °C	Open Drain or Open Collector	140 ms	8-MSOP 8-TSSOP	0.118 in	3 mm
Analog Devices LTC1326IS8#TRPBF	8-SO	3	Multi-Voltage Supervisor	Surface Mount	Adj	3.118 V 4.725 V	Active High/Active Low	85 °C	-40 °C	Open Drain or Open Collector	140 ms	8-SOIC			3.9 mm	0.154 in
Analog Devices LTC1326IS8-2.5#PBF	8-SO	3	Multi-Voltage Supervisor	Surface Mount	Adj	2.363 V 3.118 V	Active High/Active Low	85 °C	-40 °C	Open Drain or Open Collector	140 ms	8-SOIC			3.9 mm	0.154 in
Analog Devices LTC1326CMS8-2.5#TRPBF	8-MSOP	3	Multi-Voltage Supervisor	Surface Mount	Adj	2.363 V 3.118 V	Active High/Active Low	70 °C	0 °C	Open Drain or Open Collector	140 ms	8-MSOP 8-TSSOP	0.118 in	3 mm

Catalog

Micropower Precision Triple Supply Monitor

Key Features

• Simultaneously Monitors Three SuppliesLTC1326: 5V, 3.3V and ADJLTC1326-2.5: 2.5V, 3.3V and ADJ

• LTC1326: 5V, 3.3V and ADJ

• LTC1326-2.5: 2.5V, 3.3V and ADJ

• Guaranteed Threshold Accuracy: ±0.75%

• Low Supply Current: 20µA

• Internal Reset Time Delay: 200ms

• Manual Push-Button Reset Input

• Active Low and Active High Reset Outputs

• Active Low "Soft" Reset Output

• Power Supply Glitch Immunity

• GuaranteedRESETfor VCC3≥ 1V or VCC5≥ 1V or VCC25≥ 1V

• 8-Pin SO and MSOP Packages

Description

The LTC1326/LTC1326-2.5 are triple supply monitors intended for systems with multiple supply voltages. They provide micropower operation, small size and high accuracy supply monitoring.Tight 0.75% threshold accuracy and glitch immunity ensure reliable reset operation without false triggering. The 20µA typical supply current makes the LTC1326/LTC1326-2.5 ideal for power-conscious systems.TheRSToutput is guaranteed to be in the correct state for VCC3, VCC5or VCC25down to 1V. The LTC1326/LTC1326-2.5 can be configured to monitor one, two or three inputs, depending on system requirements.A manual push-button reset input provides the ability to generate a very narrow "soft" reset pulse (100µs typ) or a 200ms reset pulse equivalent to a power-on reset. BothSRSTandRSToutputs are open-drain and can be OR-tied with other reset sources.ApplicationsDesktop ComputersNotebook ComputersIntelligent InstrumentsPortable Battery-Powered Equipment