RMS noise: 27 nV at 4.17 Hz (AD7799) 65 nV at 16.7 Hz (AD7799) 40 nV at 4.17 Hz (AD7798) 85 nV at 16.7 Hz (AD7798) Current: 380 µA typical Power-down: 1 µA maximum Low noise, programmable gain, instru.