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SGM8477-1
1.8V to 5.5V, Low Noise, Zero-Drift Difference Amplifier
1.8V to 5.5V, Low Noise, Zero-Drift Difference Amplifier
GENERAL DESCRIPTION

The SGM8477-1/3 are low noise, high precision CMOS difference amplifiers, which are designed to support precision differential signal processing. These devices can operate from 1.8V to 5.5V single supply or ±0.9V to ±2.75V dual power supplies, while consuming only 380μA quiescent current. The supply current of SGM8477-3 is less than 0.5μA in shutdown mode, when external MCU controls EN pin to logic "low".

The SGM8477-1/3 feature low noise, a 10μV maximum input offset voltage and zero-drift over time and temperature. These devices are suitable in low voltage and low power systems. They support rail-to-rail input and output operation. Meanwhile, the SGM8477-1/3 fit in tiny packages. They are designed to provide high performance for sensing high-side and low-side current accurately, such as single battery voltage.

The SGM8477-1/3 save external components by integrated matched resistors in differential applications. They have different versions for gains of 50 and 300.

The SGM8477-1 is available in Green SC70-6 and UTQFN-1.8×1.4-10L packages. The SGM8477-3 is available in a Green UTQFN-1.8×1.4-10L package. They are all specified over -40 to +125 temperature range.

PIN CONFIGURATIONS

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FEATURES
  • Low Input Offset Voltage: 10μV (MAX)

  • Low Drift: 0.02μV/ (TYP)

  • Low 0.1Hz to 10Hz Noise: 250nVP-P

  • Low Noise: 10nV/√Hz at 1kHz

  • Integrated RFI Filter

  • Rail-to-Rail Input and Output

  • Single-Supply Operation

  • Supply Voltage Range: 1.8V to 5.5V

  • Quiescent Current: 380μA (TYP)

  • Shutdown Status Current: < 0.5μA

  • -40 to +125 Operating Temperature Range

  • Available in Green SC70-6 and UTQFN-1.8×1.4-10L Packages

APPLICATIONS

Industrial Equipment

Battery-Powered Equipment

Sensor Signal Conditioning

ORDERING INFORMATION
Part Number Status Package Pins Pb-Free Temp Range
SGM8477-1BXC6G/TR Production SC70-6 6 Y -40℃ to +125℃ Samples
SGM8477-1BXUWQ10G/TR Production UTQFN-1.8×1.4-10L 10 Y -40℃ to +125℃ Samples
SGM8477-1GXC6G/TR Production SC70-6 6 Y -40℃ to +125℃ Samples
SGM8477-1GXUWQ10G/TR Production UTQFN-1.8×1.4-10L 10 -40℃ to +125℃ Samples
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