AEC-Q100, -22 to 60V, bi-directional current sense amplifier w/ in-line filter capability

The LMP8601-Q1, LMP8602-Q1, and LMP8603-Q1 devices are

fixed-gain, precision current-sense amplifiers (also referred to as current-shunt

monitors). The input common-mode voltage range is –22V to +60V when operating from a

single 5V supply, or –4V to +27V with a 3.3V supply. The LMP860x-Q1 are parts designed for

unidirectional and bidirectional current sensing applications.

These devices have a precise gain of

20x (LMP8601-Q1), 50x (LMP8602-Q1), and 100x (LMP8603-Q1), and are adequate in

most targeted applications to drive an ADC to full-scale value. The fixed gain is

achieved in two separate stages: a preamplifier with a gain of 10x and an output

stage buffer amplifier with a gain of 2x (LMP8601-Q1), 5x (LMP8602-Q1), or 10x (LMP8603-Q1). The path between the

two stages is brought out on two pins to enable the option of an additional filter

network or modifying the gain.

The offset input pin enables these

devices for unidirectional or bidirectional single supply voltage current

sensing.

The

LMP860x-Q1 devices incorporate

enhanced manufacturing and support processes for the automotive market and are

compliant with the AEC-Q100 standard.