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NAU7802SGI

DS_NAU7802SGI_BlockDiagram_N

NAU7802SGI is a precision low-power 24-bit analog-to-digital converter (ADC), with an onboard low-noise programmable gain amplifier (PGA), onboard RC or Crystal oscillator, and a precision 24-bit sigma-delta (Σ-Δ) analog to digital converter (ADC).

NAU7802SGI is capable of up to 23-bit ENOB (Effective Number of Bits) performance.  This device provides a complete front-end solution for bridge/sensor measurement such as in weigh scales, strain gauges, and many other high resolution, low sample rate applications.

Target Applications:

Smart Scales
Strain Gauge
Industrial process control
Liquid/gas flow control
Pressure sensors
Voltage monitors

Key Features:

ADC Feature
  - ENOB: 23bit 
  - Programmable PGA Gain: 1~128
   
Data Output
  - Control Interface: 2-wire interface compatible with I2
  - Programmable ADC data output rates
  - RMS Noise:
  • 50nV in  ADC data output rate@10 SPS , PGA Gain@ 128
  • 150nV in ADC data output rate@80 SPS, PGA Gain@ 128
     
Advance Feature
  - On-chip Calibration
  - On-chip power-on reset circuit
  - On-chip temperature sensor
  - Low Power Consumption and Programmable Power Management Options
  - < 1uA standby current
     
Operating Characteristics
  - Voltage range: 2.7 V to 5.5 V
  - Temperature range: -40°C to 85°C
     
Package
  - SOP-16