ADS807E/1K屬于集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）。由美國(guó)德州儀器公司制造生產(chǎn)的ADS807E/1K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。

FEATURES

SPURIOUS-FREE DYNAMIC RANGE:

82dB at 10MHz fIN

HIGH SNR: 67.5dB (2Vp-p), 69dB (3Vp-p)

LOW POWER: 335mW

INTERNAL OR EXTERNAL REFERENCE

LOW DNL: 0.5LSB

FLEXIBLE INPUT RANGE: 2Vp-p to 3Vp-p

SSOP-28 PACKAGE

APPLICATIONS

COMMUNICATIONS IF PROCESSING

COMMUNICATIONS BASESTATIONS

TEST EQUIPMENT

MEDICAL IMAGING

VIDEO DIGITIZING

CCD DIGITIZING

DESCRIPTION

The ADS807 is a high-speed, high dynamic range,

12-bit pipelined Analog-to-Digital (A/D) converter. This converter

includes a high-bandwidth track-and-hold that gives

excellent spurious performance up to and beyond the Nyquist

rate. The differential nature of this track-and-hold and A/D

converter circuitry minimizes even-order harmonics and gives

excellent common-mode noise immunity. The track-and-hold

can also be operated single-ended.

The ADS807 provides for setting the full-scale range of the

converter without any external reference circuitry. The internal

reference can be disabled allowing low drive, internal

references to be used for improved tracking in multichannel

systems.

The ADS807 provides an over-range indicator flag to indicate

an input signal that exceeds the full-scale input range of the

converter. This flag can be used to reduce the gain of front

end gain control circuitry. There is also an output enable pin

to allow for multiplexing and testability on a PC board.

The ADS807 employs digital error correction techniques to

provide excellent differential linearity for demanding imaging

applications.