NSA2300
Overview
The NSA2300 is a highly integrated, low power high precision sensor conditioner for general resistive bridge sensors, which features a low noise instrument amplifier, a low power 24 bit Σ-Δ ADC, a digital sensor calibration DSP and a 12-bit DAC. The NSA2300 can provide an on-chip digital pensation of sensor offset, gain, temperature drift and non-linearity based on the internal fuse banks (OTP), which is fast, precise, without the cost overhead with trimming by laser or external ponents. Multiple temperature sensing methods are supported by NSA2300 for sensor’s temperature calibrating. Once calibrated, the pin VOUT can provide a selectable fixed level or ratio-metric analog output, and I2C, SPI and one wire (OWI) interfaces are supported for chip configuration, sensor calibrating and digital output.
Key Features
- Support both digital and analog output modes.
- Input referred RMS noise: 600n V @ OSR=1024X, GAIN=32X
- OTP based digital calibration of sensor offset, sensitivity,...
