AD9444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AD9444模數(shù)轉(zhuǎn)換器（ADC）模數(shù)轉(zhuǎn)換器（ADC、A/D 或 A 轉(zhuǎn) D）對(duì)模擬信號(hào)進(jìn)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(hào)。一般來(lái)說(shuō)，數(shù)字輸出是二進(jìn)制補(bǔ)碼二進(jìn)制數(shù)，與輸入成比例。輸入類(lèi)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(jìn)行選擇。

GENERAL DESCRIPTION

The AD9444 is a 14-bit monolithic, sampling analog-to-digital converter (ADC) with an on-chip, track-and-hold circuit and is optimized for power, small size, and ease of use. The product operates at up to an 80 MSPS conversion rate and is optimized for multicarrier, multimode receivers, such as those found in cellular infrastructure equipment.

FEATURES

80 MSPS guaranteed sampling rate

100 dB two-tone SFDR with 69.3 MHz and 70.3 MHz

73.1 dB SNR with 70 MHz input

97 dBc SFDR with 70 MHz input

Excellent linearity

DNL = ±0.4 LSB typical

INL = ±0.6 LSB typical

1.2 W power dissipation

3.3 V and 5 V supply operation

2.0 V p-p differential full-scale input

LVDS outputs (ANSI-644 compatible)

Data format select

Output clock available

APPLICATIONS

Multicarrier, multimode cellular receivers

Antenna array positioning

Power amplifier linearization

Broadband wireless

Radar, infared imaging

Communications instrumentation