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℃.
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
Pressure Sensors
Temperature Measurements
Precision Current Sensing
Electronic Scales
Strain Gauge Amplifiers
Handheld Test Equipment
Thermocouple Amplifiers
Medical Instrumentation