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SGM8521

GENERAL DESCRIPTION

The SGM8521 (single), SGM8522 (dual) and SGM8524 (quad) are low cost, rail-to-rail input and output voltage feedback amplifiers. They have a wide input common mode voltage range and output voltage swing, and take the minimum operating supply voltage down to 2.1V. The maximum recommended supply voltage is 5.5V.

The SGM8521/2/4 provide 150kHz bandwidth at a low current consumption of 5.5μA per amplifier. Very low input bias currents enable the SGM8521/2/4 to be used for integrators, photodiode amplifiers and piezoelectric sensors. Rail-to-rail input and output are useful to designers for buffering ASIC in single-supply systems.

Applications for these amplifiers include safety monitoring, portable equipment, battery and power supply control, and signal conditioning and interfacing for transducers in very low power systems.

The SGM8521 is available in Green SOT-23-5 and SOIC-8 packages. The SGM8522 is available in Green SOIC-8 and MSOP-8 packages. The SGM8524 is available in Green SOIC-14 and TSSOP-14 packages. They are specified over the extended -40 to +125 temperature range.

PIN CONFIGURATIONS

8521.png

FEATURES
  • Low Cost

  • Rail-to-Rail Input and Output

  • Input Offset Voltage: 3.5mV (MAX)

  • Unity Gain Stable

  • Gain-Bandwidth Product: 150kHz

  • Supply Voltage Range: 2.1V to 5.5V

  • Input Voltage Range: -0.1V to 5.6V with VS = 5.5V

  • Low Supply Current: 5.5μA

  • Available in Green SOIC-8 and SOT-23-5 Packages

APPLICATIONS

ASIC Input or Output Amplifiers

Sensor Interfaces

Piezoelectric Transducer Amplifiers

Medical Instrumentation

Mobile Communications

Audio Outputs

Portable Systems

Smoke Detectors

Mobile Telephones

Notebook PCs

PCMCIA Cards

Battery-Powered Equipment

ORDERING INFORMATION
Part NumberStatusPackagePinsPb-FreeTemp Range
SGM8521XN5/TRProductionSOT-23-55Y-40℃ to +125℃
SGM8521XS/TRProductionSOIC-88Y-40℃ to +125℃

 

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