SG Micro Corp

SGM8956 1.8V, Micro-Power CMOS Zero-Drift Operational Amplifier


The single SGM8955 and dual SGM8956 CMOS operational amplifiers provide very low offset voltage and zero-drift over time and temperature.

The miniature, high-precision, low quiescent current amplifiers offer high-impedance inputs that have a wide input common mode range 100mV beyond the rails and rail-to-rail output that swings within 14mV of the rails. Single or dual supplies as low as +1.8V (±0.9V) and up to +5.5V (±2.75V) may be used. It is optimized for low voltage, single-supply operation.

The SGM8955/6 offer excellent CMRR without the crossover associated with traditional complementary input stages. This design results in superior performance for driving analog-to-digital converters (ADCs) without degradation of differential linearity.

The single SGM8955 is available in Green SOT-23-5, SC70-5 and SOIC-8 packages. The dual SGM8956 is available in Green SOIC-8, MSOP-8 and TDFN-3×3-8L packages. They are specified over -40 to +125 temperature range.



• Low Offset Voltage: 50μV (MAX)

• Low 0.1Hz to 10Hz Noise: 2μVP-P

• Quiescent Current: 20μA/Amplifier (TYP)

• Integrated RFI Filter

• Single-Supply Operation

• Supply Voltage Range: 1.8V to 5.5V

• Rail-to-Rail Input and Output

• -40 to +125 Operating Temperature Range

• Small Packaging:

   SGM8955 Available in Green SOT-23-5, SC70-5

   and SOIC-8

   SGM8956 Available in Green SOIC-8, MSOP-8

   and TDFN-3×3-8L


Transducer Applications

Temperature Measurements

Electronic Scales

Medical Instrumentation

Battery-Powered Instrument

Handheld Test Equipment


Part Number Status Package Pins Pb-Free Temp Range
SGM8956XS8G/TR Production SOIC-8 8 Y -40℃ to +125℃ Samples
SGM8956XMS8G/TR Production MSOP-8 8 Y -40℃ to +125℃ Samples
SGM8956XTDB8G/TR Production TDFN-3×3-8L 8 Y -40℃ to +125℃ Samples

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