Overview
The NAU7802SGI, produced by Nuvoton Technology Corporation, is a precision low-power 24-bit analog-to-digital converter (ADC) designed for high-resolution, low-sample-rate applications. This device integrates an onboard low-noise programmable gain amplifier (PGA), an onboard RC or Crystal oscillator, and a 24-bit sigma-delta (Σ-Δ) ADC. It offers a complete front-end solution for various sensor and bridge measurements, including weigh scales, strain gauges, and industrial process control.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 24 bits |
| ENOB (Effective Number of Bits) | Up to 23 bits |
| Programmable PGA Gain | 1 to 128 |
| Control Interface | 2-wire interface compatible with I2C |
| ADC Data Output Rates | Programmable |
| Voltage Range | 2.7V ~ 5.5V |
| Temperature Range | -40°C ~ 85°C |
| Package | SOP-16 (150 mil) |
| Standby Current | < 1uA |
Key Features
- ADC Feature: ENOB up to 23 bits, programmable PGA gain from 1 to 128.
- Data Output: Programmable ADC data output rates, 2-wire interface compatible with I2C.
- Advanced Features: On-chip calibration, on-chip power-on reset circuit, on-chip temperature sensor.
- Power Management: Low power consumption, programmable power management options.
- Operating Characteristics: Voltage range of 2.7V ~ 5.5V, temperature range of -40°C ~ 85°C.
Applications
- Smart Scales
- Strain Gauge
- Industrial Process Control
- Liquid/Gas Flow Control
- Pressure Sensors
- Voltage Monitors
Q & A
- What is the resolution of the NAU7802SGI ADC?
The NAU7802SGI has a resolution of 24 bits.
- What is the effective number of bits (ENOB) of the NAU7802SGI?
The ENOB of the NAU7802SGI is up to 23 bits.
- What is the range of the programmable PGA gain in the NAU7802SGI?
The programmable PGA gain ranges from 1 to 128.
- What type of control interface does the NAU7802SGI use?
The NAU7802SGI uses a 2-wire interface compatible with I2C.
- What is the voltage range of the NAU7802SGI?
The voltage range is 2.7V ~ 5.5V.
- What is the temperature range of the NAU7802SGI?
The temperature range is -40°C ~ 85°C.
- What is the standby current of the NAU7802SGI?
The standby current is less than 1uA.
- Does the NAU7802SGI have on-chip calibration?
Yes, the NAU7802SGI has on-chip calibration.
- What types of applications is the NAU7802SGI suitable for?
The NAU7802SGI is suitable for applications such as smart scales, strain gauges, industrial process control, liquid/gas flow control, pressure sensors, and voltage monitors.
- What package options are available for the NAU7802SGI?
The NAU7802SGI is available in SOP-16 (150 mil) packages.
