PRODUCT DESCRIPTION
The SGM8521 (single)， SGM8522 (dual) and SGM8524 (quad) are rail-to-rail input and output voltage feedback amplifiers offering low cost. They have a wide input common-mode voltage range and output voltage swing, and take the minimum operating supply voltage down to 2.1V and the maximum recommended supply voltage is 5.5 V. All are specified over the extended –40°C to +125°C temperature range.
The SGM8521/8522/8524 provide150KHz bandwidth at a low current consumption of 4.7µA per amplifier. Very low input bias currents of 0.5pA, enable the SGM8521/8522/8524 to be used for integrators, photodiode amplifiers, and piezoelectric sensors. Rail-to-Rail inputs and outputs are useful to designers buffering ASIC in single-supply systems.

FEATURES
• Low Cost
• Rail-to-Rail Input and Output
   0.8mV Typical VOS
• Unity Gain Stable
• Gain Bandwidth Product: 150KHz
• Very low input bias currents : 0.5pA
• Operates on 2.1 V to 5.5 V Supplies
• Input Voltage Range = - 0.1 V to +5.6 V with VS = 5.5V
• Low Supply Current: 4.7µA/Amplifier
• Small Packaging
   SGM8521 Available in SO-8 and SOT23-5
   SGM8522 Available in SO-8 and MSOP-8
   SGM8524 Available in SO-16, SO-14 and
   TSSOP-16

APPLICATIONS
  ASIC Input or Output Amplifier
  Sensor Interface
  Piezo Electric Transducer Amplifier
  Medical Instrumentation
  Mobile Communication
  Audio Output
  Portable Systems
  Smoke Detectors
  Mobile Telephone
  Notebook PC
  PCMCIA cards
  Battery-Powered equipment