AD5941BCPZ-RL7

AD5941 is a high precision, low power analogue front end (AFE) designed for portable applications that require high precision, electrochemical-based measurement techniques, such as amperometric, voltammetric, or impedance measurements. It is designed for skin impedance and body impedance measurements, and works with the AD8233 AFE in a complete bioelectric or biopotential measurement system. It is designed for electrochemical toxic gas sensing. It consists of two high precision excitation loops and one common measurement channel, which enables a wide capability of measurements of the sensor under test. It is used in applications such as electrochemical measurements, electrochemical gas sensors, potentiostat/amperometric/voltammetry/cyclic voltammetry, bioimpedance applications, skin impedance, body impedance, continuous glucose monitoring, battery impedance.

• Resolution is 16bits, integral nonlinearity is ±2LSB typical
• Differential nonlinearity is ±0.9LSB typical at (AVDD = DVDD = 2.8V to 3.6V)-
• Signal-to-noise ratio is 80dB typical at (PGA gain = 1, 1.5, and 2)
• Total harmonic distortion is -84dB typical at (AVDD = DVDD = 2.8V to 3.6V)
• Noise (RMS) is 800nV/√Hz typical at (chop on, AVDD = DVDD = 2.8V to 3.6V)
• Voltage, current, and impedance measurement capability
• Digital waveform generator, receive filters
• SPI serial input/output, wake-up timer, interrupt controller
• Digital waveform generator for generation of sinusoid and trapezoid waveforms
• Operating temperature is -40°C to +85°C, package style is 48-lead LFCSP

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