MAX44246ASA+T

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1. Description

The MAX44246ASA+T are 36V, ultraprecision, low-noise, low-drift, single/quad/dual operational amplifiers that offer near-zero DC offset and drift through the use of patented chopper stabilized and auto-zeroing techniques. This method constantly measures and compensates the input offset, eliminating drift over time and temperature and the effect of 1/f noise. These single/quad/dual devices feature rail-to-rail outputs, operate from a single 2.7V to 36V supply or dual ±1.35V to ±18V supplies, and consume only 0.42mA per channel, with only 9nV/√Hz input-referred voltage noise. The ICs are available in 8-pin FMAXM or SO packages and are rated over the -40NC to +125NC temperature range.

2. Features

    1. Reduces Noise-Sensitive Precision Applications

        - Low 9nV/√Hz Noise at 1kHz

        - Integrated EMI Filter

    2. Eliminates Cost of Calibration with Increased Accuracy and Patented Auto-Zero Circuitry

        - Ultra-Low Input VOS: 5µV (max)

        - Low 20nV/°C (max) of Offset Drift

    3. Suitable for High-Bandwidth Applications

        - 1µs Fast Settling Time

        - 5MHz Gain-Bandwidth Product

    4. Low 0.55mA Per Channel (max) Quiescent Current

    5. Wide Supply for High-Voltage Front-Ends

        - 2.7V to 36V Supply Range

    6. Rail-to-Rail Output

3. Applications

    1. Transducer Amplifiers

    2. Load Cell Amplifiers

    3. Precision

    4. Instrumentation

    5. Battery-Powered

    6. Equipment

    7. PLC Analog I/O

    8. Modules