MAX44248AUA+T

MAX44248AUA+T is a single, precision, low-power op-amp. It incorporates a patented auto-zero circuit that constantly measures and compensates the input offset to eliminate drift over time and temperature as well as the effect of 1/f noise. This device also features integrated EMI filters to reduce high-frequency signal demodulation on the output. It is unity-gain stable with a 1MHz gain-bandwidth product and a low 90µA supply current per amplifier. The low offset and noise specifications and high supply range make the device ideal for sensor interfaces and transmitters. Applications include sensor interfaces, 4mA to 20mA and 0 to 10V transmitters, PLC analogue I/O modules, weight scales, and portable medical devices.

• Reduces power for sensitive precision applications
• Eliminates the cost of calibration with increased accuracy with patented autozero circuitry
• Low noise ideal for sensor interfaces and transmitters
• 1MHz gain-bandwidth product, EMI suppression circuitry
• Wide supply for high-voltage front ends, 2.7V to 36V supply range
• Power-supply rejection ratio is 148dB typ at TA = +25°C, VIN+ = VIN- = VDD/2 - 1V, VDD = 10V
• Quiescent current per amplifier is 90µA typ at TA = +25°C, VDD = 10V
• Common-mode rejection ratio is 130dB typ at TA = +25°C, VCM = VSS - 0.05V to VDD - 1.5V, VDD = 10V
• 8 µMAX package
• Temperature range from -40°C to 125°C

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