AD7674屬于集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD7674模數(shù)轉(zhuǎn)換器（ADC）模數(shù)轉(zhuǎn)換器（ADC、A/D 或 A 轉(zhuǎn) D）對模擬信號進行采樣，例如由麥克風(fēng)采集的聲音或傳感器的輸出，然后將其轉(zhuǎn)換為數(shù)字信號。一般來說，數(shù)字輸出是二進制補碼二進制數(shù)，與輸入成比例。輸入類型可能是差分、偽差分或單端輸入。模數(shù)轉(zhuǎn)換器可按照位數(shù)、采樣率、輸入數(shù)、接口、轉(zhuǎn)換器數(shù)和架構(gòu)（例如自適應(yīng)增量、雙斜率、折疊、流水線、SAR、三角積分、兩步式）進行選擇。

GENERAL DESCRIPTION

The AD8476 is a very low power, fully differential precision amplifier with integrated gain resistors for unity gain. It is an ideal choice for driving low power, high performance ADCs as a single-ended-to-differential or differential-to-differential amplifier. It provides a precision gain of 1, common-mode level shifting, low temperature drift, and rail-to-rail outputs for maximum dynamic range.

FEATURES

Very low power

330 μA supply current

Extremely low harmonic distortion

?126 HD2 at 10 kHz

?128 HD3 at 10 kHz

Fully differential or single-ended inputs/outputs

Differential output designed to drive precision ADCs

Drives switched capacitor and Σ-Δ ADCs

Rail-to-rail outputs

VOCM pin adjusts output common mode

Robust overvoltage up to 18 V beyond supplies

High performance

Suitable for driving 16-bit converter up to 250 kSPS

39 nV/√Hz output noise

1 ppm/°C gain drift maximum

200 μV maximum output offset

10 V/μs slew rate

6 MHz bandwidth

Single supply: 3 V to 18 V

Dual supplies: ±1.5 V to ±9 V

APPLICATIONS

ADC driver

Differential instrumentation amplifier building block

Single-ended-to-differential converter

Battery-powered instruments