ADS5444IPFP屬于集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）。由美國德州儀器公司制造生產(chǎn)的ADS5444IPFP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(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。一般來說，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。

FEATURES

· 13-Bit Resolution

· 250 MSPS Sample Rate

· SNR = 69 dBc at 100-MHz IF and 250 MSPS

· SFDR = 76 dBc at 100-MHz IF and 250 MSPS

· SNR = 67.7 dBc at 230-MHz IF and 250 MSPS

· SFDR = 77 dBc at 230-MHz IF and 250 MSPS

· 2.2 VPP Differential Input Voltage

· Fully Buffered Analog Inputs

· 5 V Analog Supply Voltage

· LVDS Compatible Outputs

· Total Power Dissipation: 2 W

· Offset Binary Output Format

· TQFP-80 PowerPAD? Package

· Pin Compatible with the ADS5440

· Industrial Temperature Range = –40°C to 85°C

APPLICATIONS

· Test and Measurement

· Software-Defined Radio

· Multi-channel Basestation Receivers

· Basestation Tx Digital Predistortion

· Communications Instrumentation

RELATED PRODUCTS

· ADS5424 - 14-bit, 105 MSPS ADC

· ADS5423 - 14-bit, 80 MSPS ADC

· ADS5440 - 13-bit, 210 MSPS ADC

DESCRIPTION

The ADS5444 is a 13-bit 250 MSPS analog-to-digital converter (ADC) that operates from a 5 V supply, while

providing LVDS-compatible digital outputs from a 3.3 V supply. The ADS5444 input buffer isolates the internal

switching of the onboard track and hold (T&H) from disturbing the signal source. An internal reference generator

is also provided to further simplify the system design. The ADS5444 has outstanding low noise and linearity over

input frequency.