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SGM8478-1C
High Voltage, High Precision, Low Noise, Over the Rail Difference Amplifier
High Voltage, High Precision, Low Noise, Over the Rail Difference Amplifier
GENERAL DESCRIPTION

The SGM8478-1C is a low noise, high precision difference amplifier which can operate from 4.5V to 36V single supply. The device provides rail-to-rail output operation. Its input common mode voltage range covers up to (+VS) + 1V. The wide input voltage range makes this device suitable for current sensing applications.

The SGM8478-1C offers a 16μV maximum input offset voltage. Meanwhile, the device features high linearity and high accuracy. The combination of these characteristics makes the SGM8478-1C a good choice for temperature measurements, pressure and position sensors, strain gauge amplifiers and medical instrumentation, or any other 4.5V to 36V applications requiring precision and long-term stability.

The SGM8478-1C saves external components by integrated matched resistors in differential applications. The gain of SGM8478-1C is 50V/V.

The SGM8478-1C is available in Green SOIC-8 and TDFN-3×3-8L packages. It operates over an ambient temperature range of -40 to +125.

PIN CONFIGURATIONS

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FEATURES
  • Low Offset Voltage: 16μV (MAX)

  • Input Signal Range:

    (-VS) - 0.1V to (+VS) + 1V for Dual Power Supplies

    GND - 0.1V to (+VS) + 1V for Single Power Supply

  • Gain: 50V/V

  • PSRR: 0.05μV/V (TYP)

  • CMRR: 106dB (TYP)

  • 0.1Hz to 10Hz Noise: 0.75μVP-P

  • Input Voltage Noise Density: 39nV/√Hz at 1kHz

  • -3dB Bandwidth: 230kHz

  • Rail-to-Rail Output

  • Wide Supply Voltage Range: 4.5V to 36V

  • Supply Current: 1.55mA (TYP)

  • Integrated Matched Resistors for Differential Applications

  • -40 to +125 Operating Temperature Range

  • Available in Green SOIC-8 and TDFN-3×3-8L Packages

APPLICATIONS

Pressure Sensors

Temperature Measurements

Precision Current Sensing

Electronic Scales

Strain Gauge Amplifiers

Handheld Test Equipment

Thermocouple Amplifiers

Medical Instrumentation

ORDERING INFORMATION
Part Number Status Package Pins Pb-Free Temp Range
SGM8478-1CXS8G/TR Production SOIC-8 8 Y -40℃ to +125℃ Samples
SGM8478-1CXTDB8G/TR Production TDFN-3×3-8L 8 Y -40℃ to +125℃ Samples
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