ADM698AR-REEL

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The ADM698AR-REEL is part of the Analog Devices Inc. family of integrated circuit supervisors that are used to monitor vital system parameters, such as power supply voltage and temperature. This device is billed as a cost-effective solution for well-defined supervisor rail. This is an ideal product for use in consumer, automotive, industrial, and medical applications.

The ADM698AR-REEL is a precision voltage supervisor that monitors an input voltage rail and asserts an output signal when the input voltage level drops below a given threshold. The device can be set to monitor one of two configurable thresholds, as well as a reset timeout time of up to 256ms. Additionally, the device provides an input for an external reset signal and a watchdog timer that can be disabled.

The device is housed in a small 3-pin SOT-23 package that can be easily mounted on a PCB, and provides immunity against electrical noise and fast transients, while offering an operating temperature range between -40°C to +85°C. The input voltage range of the device spans from +1.1V to +5.5V, while the output voltage level can vary between +1.1V and +3.3V.

The device has two input voltage thresholds, which are configurable via two pins. The VI_HIGH pin should be connected to the highest desired threshold level, while the VIL pin should be connected to the lower voltage threshold. If the input voltage level drops below the VIL, the device will pull the output low, signaling a reset condition, and will continue to do so until the input voltage level is restored to higher than the specified VIL level.

The ADM698AR-REEL also contains a watchdog timer whose purpose is to trigger a reset in the event of a system failure. The time delay for this timer can be programmed by tying a resistor between the WDI pin and the VP pin. The watchdog timer is disabled by tying the WDI pin to the VIL pin with a low power resistor.

The ADM698AR-REEL is a versatile integrated circuit supervisor, capable of monitoring input voltage levels and asserting a reset signal when they fall below a specified threshold. It has been designed with low power consumption in mind, and is housed in a small 3-pin SOT-23 package, making it ideal for use in consumer, automotive, industrial, and medical applications.

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