ADC12DS105CISQE/NOPB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ADC12DS105CISQE/NOPB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。

1FEATURES

2? Clock Duty Cycle Stabilizer

? Single +3.0 or 3.3V Supply Operation

? Serial LVDS Outputs

? Serial Control Interface

? Overrange Outputs

? 60-pin WQFN Package, (9x9x0.8mm, 0.5mm

pin-pitch)

APPLICATIONS

? High IF Sampling Receivers

? Wireless Base Station Receivers

? Test and Measurement Equipment

? Communications Instrumentation

? Portable Instrumentation

KEY SPECIFICATIONS

? Resolution: 12 Bits

? Conversion Rate: 105 MSPS

? SNR (fIN = 240 MHz): 68.5 dBFS (typ)

? SFDR (f IN = 240 MHz): 83 dBFS (typ)

? Full Power Bandwidth: 1 GHz (typ)

? Power Consumption: 1 W (typ)

DESCRIPTION

The ADC12DS105 is a high-performance CMOS

analog-to-digital converter capable of converting two

analog input signals into 12-bit digital words at rates

up to 105 Mega Samples Per Second (MSPS). The

digital outputs are serialized and provided on

differential LVDS signal pairs. This converter uses a differential, pipelined architecture with digital error

correction and an on-chip sample-and-hold circuit to

minimize power consumption and the external

component count, while providing excellent dynamic

performance. The ADC12DS105 may be operated

from a single +3.0V or 3.3V power supply. A power-

down feature reduces the power consumption to very

low levels while still allowing fast wake-up time to full

operation. The differential inputs accept a 2V full

scale differential input swing. A stable 1.2V internal voltage reference is provided, or the ADC12DS105

can be operated with an external 1.2V reference. The

selectable duty cycle stabilizer maintains

performance over a wide range of clock duty cycles.

A serial interface allows access to the internal

registers for full control of the ADC12DS105's

functionality. The ADC12DS105 is available in a 60-

lead WQFN package and operates over the industrial

temperature range of ?40°C to +85°C