LTC6103

FEATURES ■ Two Independent Current Sense Amplifiers ■ Wide Supply Range: 4V to 60V, 70V Absolute Maximum ■ Low Offset Voltage: 450µV Maximum ■ Fast Response: 1µs Response Time ■ Gain Configurable with External Resistors ■ Low Input Bias Current: 170nA Maximum ■ PSRR: 110dB Minimum (6V to 60V) ■ Output Current: 1mA Maximum ■ Low Supply Current: 275µA per Amplifier, VS = 12V ■ Specified for –40°C to 125°C Temperature Range ■ Available in an 8-lead MSOP Package APPLICATIONS ■ Current Shunt Measurement ■ Battery Monitoring ■ Remote Sensing ■ Power Management ■ High Voltage Level Translator LTC6103 Dual High Voltage, High Side Current Sense Amplifier DESCRIPTION The LTC®6103 is a versatile, high voltage, high side, dual current sense amplifier. The two internal amplifiers are independent except that they share the same V– terminal. Design flexibility is provided by the excellent device characteristics: 450µV maximum offset, and only 275µA of current consumption (typical at 12V) for each amplifier. The LTC6103 operates on supplies from 4V to 60V. The LTC6103 monitors current via the voltage across an external sense resistor (shunt resistor). Internal circuitry converts input voltage to output current, allowing for a small sense signal on a high common mode voltage to be translated into a ground referenced signal. Low DC offset allows the use of a small shunt resistor and large gain-setting resistors. As a result, power loss in the shunt is minimal. The wide operating supply range and high ...