he ADE1139 is a zero-drift fully-differential programmable-gain amplifier, targeted to interface with a di/dt current sensor. It features a rail-to-rail input and differential output swing. With an output common-mode offset voltage of 8 mV, output common-mode offset voltage drift of 15 μV/°C for all gain conditions, and typical differential noise density of 7 nV/√Hz, the ADE1139 is well suited for applications in which error sources cannot be tolerated. The ADE1139 has a wide operating supply range of 3.0 V to 5.5 V, high gain, and excellent common-mode rejection ratio (CMRR) and power-supply rejection ratio (PSRR) specifications, which makes it ideal for applications that require precision amplification of low-level signals. The ADE1139 is specified over the extended industrial temperature (−40°C to +125°C), and is available in a 12-lead LFCSP package. APPLICATIONS * Thermocouple/thermopile * Load cell and bridge transducer * Precision instrumentation * Electronic scales * Medical instrumentation * Handheld test equipment * Low offset: 2.5 μV maximum * Low offset voltage drift: 0.015 μV/°C maximum * Low noise * 5.6 nV/√Hz at f = 1 kHz, AV = +100 * 97 nV p-p at f = 0.1 Hz to 10 Hz, AV = +100 * Open-loop voltage gain: 130 dB minimum * CMRR: 80 dB minimum * PSRR: 80 dB minimum