ADS2806Y/250集成电路（IC）的模数转换器（ADC）规格书PDF中文资料

ADS2806Y/250属于集成电路（IC）的模数转换器（ADC）。由德州仪器制造生产的ADS2806Y/250模数转换器（ADC）模数转换器（ADC、A/D 或 A 转 D）对模拟信号进行采样，例如由麦克风采集的声音或传感器的输出，然后将其转换为数字信号。一般来说，数字输出是二进制补码二进制数，与输入成比例。输入类型可能是差分、伪差分或单端输入。模数转换器可按照位数、采样率、输入数、接口、转换器数和架构（例如自适应增量、双斜率、折叠、流水线、SAR、三角积分、两步式）进行选择。

FEATURES

SPURIOUS-FREE DYNAMIC RANGE:

73dB at 10MHz fIN

HIGH SNR: 67dB (2Vp-p), 69dB (3Vp-p)

INTERNAL OR EXTERNAL REFERENCE

LOW DLE: ±0.4LSB

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

TQFP-64 POWER PACKAGE

APPLICATIONS

COMMUNICATIONS IF PROCESSING

COMMUNICATIONS BASESTATIONS

TEST EQUIPMENT

MEDICAL IMAGING

VIDEO DIGITIZING

CCD DIGITIZING

DESCRIPTION

The ADS2806 is a dual, high-speed, high dynamic range,

12-bit pipelined Analog-to-Digital Converter (ADC). 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 ADC

circuitry minimizes even-order harmonics and gives excellent

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

also be operated single-ended.

The ADS2806 provides for setting the full-scale range of the

converter without any external reference circuitry. The internal

reference can be disabled allowing low drive, external references

to be used for improved tracking in multichannel systems.

The ADS2806 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 ADS2806 employs digital error correction techniques to

provide excellent differential linearity for demanding imaging

applications. The ADS2806 is available in a TQFP-64

power package.