Allicdata Part #: | NAU7802SGI-ND |
Manufacturer Part#: |
NAU7802SGI |
Price: | $ 1.26 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Nuvoton Technology Corporation of America |
Short Description: | IC ADC 24BIT I2C/SRL 16-SOP24 Bit Analog to Digita... |
More Detail: | N/A |
DataSheet: | NAU7802SGI Datasheet/PDF |
Quantity: | 22638 |
1 +: | $ 1.14660 |
10 +: | $ 1.03320 |
25 +: | $ 0.92257 |
100 +: | $ 0.83040 |
250 +: | $ 0.73811 |
500 +: | $ 0.64585 |
1000 +: | $ 0.53513 |
2500 +: | $ 0.49822 |
5000 +: | $ 0.47977 |
Series: | -- |
Packaging: | Tube |
Part Status: | Active |
Number of Bits: | 24 |
Sampling Rate (Per Second): | 80 |
Number of Inputs: | 2 |
Input Type: | Differential, Single Ended |
Data Interface: | I²C |
Configuration: | MUX-PGA-ADC |
Ratio - S/H:ADC: | -- |
Number of A/D Converters: | 1 |
Architecture: | Sigma-Delta |
Reference Type: | External, Internal |
Voltage - Supply, Analog: | 2.7 V ~ 5.5 V |
Voltage - Supply, Digital: | 2.7 V ~ 5.5 V |
Features: | PGA, Temperature Sensor |
Operating Temperature: | -40°C ~ 85°C |
Package / Case: | 16-SOIC (0.154", 3.90mm Width) |
Supplier Device Package: | 16-SOP |
Base Part Number: | -- |
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1. General description
NAU7802SGI is a precision low-power 24-bit analog-to-digital converter (ADC) with a On-board low-noise programmable gain amplifier (PGA), on-board RC or crystal oscillator and a Precision 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC). The NAU7802SGI device has the following functions:
ENOB (effective number of bits) performance up to 23 bits. The device provides a complete front end Bridge/sensor measurement solutions, such as electronic scales, strain gauges and many other high Resolution, low sampling rate applications. Many built-in functions can achieve high-performance applications, while the number of external parts is small. In addition, the operating current and standby current are very low, and many power management Including features. These functions can only supply power to those components required on the chip, and In addition, if the full 23-bit ENOB performance is not required, it can also work with greatly reduced power. Programmable gain amplifier (PGA) provides selectable gains from 1 to 128. A/D conversion Executed with Sigma-Delta modulator and programmable FIR filter, the filter can be provided at the same time The 50Hz and 60Hz notch filter can effectively improve the anti-interference ability. In addition, this device also provides The standard 2-wire interface compatible with I2C protocol can be easily and directly connected with Interoperability with various possible host processors.
2. FEATURES
1. Supply power: 2.7V~5.5V
2. On-chip VDDA regulator for internal analog circuit or external load cell
- Programmable VDDA: Off, 2.4V to 4.5V with eight options
Minimum 10mA output drive capability at 3.0V output voltage
Note: DVDD must be 0.3Vdc greater than desired VDDA output voltage
3. 23 bits effective precision analog-to-digital converter
4. Simultaneous 50Hz and 60Hz rejection (reaching -90dB)
5. RMS Noise:
- 50nV in 10 SPS data output rate and PGA gain = 128
- 150nV in 80 SPS data output rate and PGA gain = 128
6. Programmable PGA gains from 1 to 128
7. Programmable ADC data output rates
8. External differential reference voltage range from 0.1V to 5V
9. System clock: External crystal oscillator or on-chip RC oscillator (4.9152Mhz)
10. On-chip calibration
11. On-chip power-on reset circuit
12. On-chip temperature sensor
13. Low Power Consumption and Programmable Power Management Options
- < 1uA standby current
14. External 4.9152MHz Crystal oscillator
15. System clock:
- Internal 4.9152MHz RC oscillator (power-on default system clock)
- External 4.9152MHz Crystal oscillator
16. MCU control interface: 2-wire interface compatible with I2C protocol
17. Operating Temperature: -40~85C
18. Packages:
- SOP-16 (150mil) / PDIP-16
3. APPLICATIONS
1. Weigh scales
2. Strain Gauge
3. Industrial process control
4. Liquid/gas flow control
5. Pressure sensors
6. Voltage monitors
4. PIN CONFIGURATION
5. PACKAGE DIMENSIONS
Part Number | Manufacturer | Price | Quantity | Description |
---|
NAU7802SGI | Nuvoton Tech... | 1.26 $ | 22638 | IC ADC 24BIT I2C/SRL 16-S... |
NAU7802KGI | Nuvoton Tech... | 1.54 $ | 338 | IC ADC 24BIT I2C/SRL 16DI... |
NAU7802SGI TR | Nuvoton Tech... | 0.57 $ | 1000 | IC ADC 24BIT I2C/SRL 16-S... |
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