AD9245集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）規(guī)格書(shū)PDF中文資料

AD9245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AD9245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 AD9245 is a monolithic, single 3 V supply, 14-bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS analog-to-digital converter (ADC) featuring a high performance sample-andhold amplifier (SHA) and voltage reference. The AD9245 uses a multistage differential pipelined architecture with output error correction logic to provide 14-bit accuracy and guarantee no missing codes over the full operating temperature range.

FEATURES

Single 3 V supply operation (2.7 V to 3.6 V)

SNR = 72.7 dBc to Nyquist

SFDR = 83.0 dBc to Nyquist

Low power

366 mW at 80 MSPS

300 mW at 65 MSPS

165 mW at 40 MSPS

90 mW at 20 MSPS

Differential input with 500 MHz bandwidth

On-chip reference and sample-and-hold

DNL = ±0.5 LSB

Flexible analog input: 1 V p-p to 2 V p-p range

Offset binary or twos complement data format

Clock duty-cycle stabilizer

APPLICATIONS

Medical imaging equipment

IF sampling in communications receivers

WCDMA, CDMA-One, CDMA-2000, and TDS-CDMA

Battery-powered instruments

Hand-held scopemeters

Spectrum analyzers

Power-sensitive military applications