LMP8601Q Datasheet | National Semiconductor

Description The LMP8601 and LMP8601Q are fixed 20x gain precision amplifiers. The part will amplify and filter small differential signals in the presence of high mon mode voltages. The input mon mode voltage range is - 22V to +60V when operating from a single 5V supply. With 3.3V supply, the input mon mode voltage range is from - 4V to +27V. The LMP8601 and LMP8601Q are members of the Linear Monolithic Precision (LMP®) family and are ideal parts for unidirectional and bidirectional current sensing applications. All parameter values of the part that are shown in the tables are 100% tested and all bold values are also 100% tested over temperature. The part has a precise gain of 20x which is adequate in most targeted applications to drive an ADC to its 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. The connection between the two stages of the signal path is brought out on two pins to enable the possibility to create an additional filter network around the output buffer amplifier. These pins can also be used for alternative configurations with different gain as described in the applications section . The mid-rail offset adjustment pin enables the user to use these devices for bidirectional single supply voltage current sensing. The output signal is bidirectional and mid-rail referenced when this pin is connected to the positive supply rail. With the offset pin connected to ground, the output signal is unidirectional and ground-referenced . The LMP8601Q incorporates enhanced manufacturing and support processes for the automotive market, including defect detection methodologies. Reliability qualification is pliant with the requirements and temperature grades defined in the AEC Q100 standard. Features Unless otherwise noted, typical values at TA = 25°C, VS = 5.0V, Gain = 20x - TCVOS - CMRR 10μV/°C max 90 d B min - Input offset voltage 1 m V max - CMVR at VS =...