SG Micro Corp

SGM8621 3MHz, Rail-to-Rail I/O CMOS Operational Amplifier


The SGM8621 (single), SGM8622 (dual), SGM8623 (single with shutdown) and SGM8624 (quad) are low noise, low voltage, and low power operational amplifiers, that can be designed into a wide range of applications. The SGM8621/2/3/4 have a high gain-bandwidth product of 3MHz and a slew rate of 1.7V/μs. The SGM8623 has a power-down disable feature that reduces the supply current to less than 1μA.

The SGM8621/2/3/4 are designed to provide optimal performance in low voltage and low noise systems. They provide rail-to-rail output swing into heavy loads. The input common mode voltage range includes ground, and the maximum input offset voltage is 3mV for SGM8621/2/3/4. They are specified over the extended industrial temperature range (-40 to +125). The operating supply range is from 2V to 5.5V.

The single version, SGM8621 is available in Green SC70-5, SOT-23-5 and SOIC-8 packages. SGM8623 is available in Green SOT-23-6 and SOIC-8 packages. The dual version SGM8622 is available in Green SOIC-8 and MSOP-8 packages. The quad version SGM8624 is available in Green SOIC-14 and TSSOP-14 packages.



• Rail-to-Rail Input and Output
   3mV Maximum VOS
• High Gain-Bandwidth Product: 3MHz
• High Slew Rate: 1.7V/μs
• Settling Time to 0.1% with 2V Step: 0.5μs
• Overload Recovery Time: 2.3μs
• Low Noise: 17.5nV/Hz at 1kHz
• Supply Voltage Range: 2V to 5.5V
• Input Voltage Range: -0.1V to +5.6V with VS = 5.5V
• Low Supply Current

   SGM8621/3: 270μA (TYP)

   SGM8622/4: 210μA/Amplifier (TYP)

   Less than 1μA Shutdown Current for SGM8623

• Small Packaging

   SGM8621 Available in Green SC70-5, SOT-23-5

   and SOIC-8

   SGM8622 Available in Green MSOP-8 and SOIC-8

   SGM8623 Available in Green SOT-23-6 and


   SGM8624 Available in Green TSSOP-14 and



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Part Number Status Package Pins Pb-Free Temp Range
SGM8621XC5/TR Production SC70-5 5 Y -40℃ to +125℃ Samples
SGM8621XN5/TR Production SOT-23-5 5 Y -40℃ to +125℃ Samples
SGM8621XS/TR Production SOIC-8 8 Y -40℃ to +125℃ Samples

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