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          SGM8140

          GENERAL DESCRIPTION

          The SGM8140 is a PIR sensor and vibration sensor analog front end which consists of 2 independent building block circuits. One is a dual rail-to-rail input and output operational amplifier, and the other is an ultra-low power comparator. Both the operational amplifier and the comparator have been specifically designed to operate over a wide range of voltages from 1.4V to 5.5V. The SGM8140 only has 1.1μA working current, so it is ideal for use in a variety of battery-powered applications.

          The operational amplifier circuit is guaranteed to operate with a single supply voltage as low as 1.4V. It has a gain-bandwidth product of 5kHz (TYP) and is unity-gain stable. These specifications make this operational amplifier appropriate for low frequency applications, such as battery current monitoring and sensor conditioning.

          Featuring a push-pull output stage, the SGM8140’s comparator allows for operation with absolute minimum power consumption when driving any capacitive or resistive load.

          The SGM8140 is specified for the -40 to +85℃ industrial temperature range. The SGM8140 is available in a Green TQFN-4×4-16L package.

          PIN CONFIGURATIONS

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          FEATURES
          • Ultra Low Power: 1.1μA (TYP) at VS = 5V

          • Wide Supply Voltage Range: 1.4V to 5.5V

          • Rail-to-Rail Input and Output Amplifier

          • Amplifier Gain-Bandwidth Product: 5kHz (TYP) at VS = 5V

          • Amplifier is Unity-Gain Stable

          • Comparator Propagation Delay: 6μs (TYP)

          • Comparator Push-Pull Output Current Drive: 19mA (TYP) at VS = 5V

          • -40 to +85℃ Operating Temperature Range

          • Available in a Green TQFN-4×4-16L Package

          APPLICATIONS

          Toll Booth Tags

          Wearable Products

          Temperature Measurements

          Battery Powered Systems

          Vibration Detectors

          Alarm and Monitoring Circuits

          ORDERING INFORMATION
          Part NumberStatusPackagePinsPb-FreeTemp Range
          SGM8140YTQE16G/TRProductionTQFN-4×4-16L16Y-40℃ to +85℃

           

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