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NAU7802SGI

Nuvoton
NAU7802 NAU7802 Precision Audio ADC with 2-wire Control Interface GENERAL DESCRIPTION The Nuvoton NAU7802 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). The NAU7802 device is capable of up to 23-bit ENOB (E...
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Технические характеристики

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Корпус SO-16 SOIC16
Разрядность АЦП
Кол-во измерительных каналов
Диапазон питающих напряжений аналоговой части ±
Диапазон питающих напряжений цифровой части
Диапазон рабочих температур
Примечание ADC, Delta-Sigma, 24-Bit, 1 Func, 2 Channel, Serial Access, PDSO16
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Файлы 1

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NAU7802 NAU7802 Precision Audio ADC with 2-wire Control Interface GENERAL DESCRIPTION The Nuvoton NAU7802 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). The NAU7802 device 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. The many built-in features enable high performance applications with very low external parts count. Additionally, both operating current and standby current are very low, and many power management features are included. These enable powering only those elements of the chip that are needed, and also, to operate at greatly reduced power if the full 23-bit ENOB performance is not required. The Programmable Gain Amplifier (PGA) provides selectable gains from 1 to 128. The A/D conversion is performed with a Sigma-Delta modulator and programmable FIR filter that provides a simultaneous 50Hz and 60Hz notch filter to effectively improve interference immunity. Also, this device provides a standard 2-wire interface compatible with I2C protocol for simple and straightforward connection to and interoperation with a wide range of possible host processors. SYSTEM BLOCK DIAGRAM VBG Bandgap Reference 2.7V~5.5V Input DVDD AVDD XOUT To serial Interface IO Power LDO To Analog Circuit XIN 1 LDO VLDO [1:0] Internal RC Oscillator 0 digital logic OSCS Control Signal CRS[2:0] CHS VIN1P SCLK PGA[1:0] Digital DRDY VIN2P VIN1N SDIO 14 PGA 24- bit ADC ADC result Interface 24 VIN2N Temperature Sensor AVSS Oct 26, 2021 REFP Page 1 of 37 REFN DVSS Rev 2.1 PDF
Документация на NAU7802SGI 

DS_NAU7802_DataSheet_EN Keywords:

Дата модификации: 04.11.2021

Размер: 681.8 Кб

37 стр.

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