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AD7793BRU 24-bit Low Noise Amplifier Module
FEATURES Up to 23 bits effective resolution RMS noise 40 nV @ 4.17 Hz 85 nV @ 16.7 Hz Current: 400 μA typical Power-down: 1 μA maximum Low noise programmable gain instrumentation amp Band gap reference with 4 ppm/°C drift typical Update rate: 4.17 Hz to 470 Hz3 differential inputs Internal clock oscillator Simultaneous 50 Hz/60 Hz rejection Programmable current sources On-chip bias voltage generator Burnout currents Power supply: 2.7 V to 5.25 V–40°C to +105°C temperature range Independent interface power supply 16-lead TSSOP package Interface 3-wire serial SPI®Â£Â¬ QSPI™Â£Â¬ MICROWIRE™Â£Â¬ and DSP compatible Schmitt trigger on SCLK