LM139ADR

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1. Description

The LM339B and LM2901B devices are the next generation versions of the industry-standard LM339 and LM2901 comparator family. These next generation B-version comparators feature lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, lower propagation delay, and improved 2 kV ESD performance and input ruggedness through dedicated ESD clamps. The LM339B and LM2901B can drop-in replace the LM239, LM339 and LM2901, for both "A" and "V" grades. All devices consist of four independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages.

2. Features

    1. NEW LM339B and LM2901B

    2. Improved specifications of B-version

        – Maximum rating: up to 38 V

        – ESD rating (HBM): 2k V

        – Low input offset: 0.37 mV

        – Low input bias current: 3.5 nA

        – Low supply-current: 200 µA per comparator

        – Faster response time of 1 µsec

        – Extended temperature range for LM339B

    3. B-version is drop-in replacement for LM239, LM339 and LM2901, A and V versions

    4. Common-mode input voltage range includes ground

    5. Differential input voltage range equal to maximumrated supply voltage: ±38 V

    6. Low output saturation voltage

    7. Output compatible with TTL, MOS, and CMOS

    8. For single version, see the TL331B

    9. For dual version, see the LM393B or LM2903B

3. Applications

    1. Vacuum robot

    2. Single phase UPS

    3. Server PSU

    4. Cordless power tool

    5. Wireless infrastructure

    6. Applicances

    7. Building automation

    8. Factory automation & control

    9. Motor drives

  10. Infotainment & cluster

4. Application Information

Typically, a comparator compares either a single signal to a reference, or to two differnt signals. Many users take advantage of the open-drain output to drive the comparison logic output to a logic voltage level to an MCU or logic device. The wide supply range and high voltage capability makes LMx39 or LM2901x optimal for level shifting to a higher or lower voltage.