ADS7882IPFBT集成电路（IC）的模数转换器（ADC）规格书PDF中文资料

ADS7882IPFBT属于集成电路（IC）的模数转换器（ADC）。由美国德州仪器公司制造生产的ADS7882IPFBT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。

1FEATURES

· 3-MHz Sample Rate, 12-Bit Resolution

· Zero Latency

· Unipolar, Pseudo Differential Input, Range:

– 0 V to 2.5 V

· High-Speed Parallel Interface

· 69.5 dB SNR at 100 kHz I/P

· Power Dissipation 85 mW at 3 MSPS

· Nap Mode (10 mW Power Dissipation)

· Power Down (10 mW)

· Internal Reference

· Internal Reference Buffer

· 48-Pin TQFP Package

APPLICATIONS

· Optical Networking (DWDM, MEMS Based

Switching)

· Spectrum Analyzers

· High Speed Data Acquisition Systems

· High Speed Close-Loop Systems

· Telecommunication

· Ultra-Sound Detection

DESCRIPTION

The ADS7882 is a 12-bit 3-MSPS A-to-D converter

with 2.5-V internal reference. The device includes a

capacitor based SAR A/D converter with inherent

sample and hold. The device offers a 12-bit parallel

interface with an additional byte mode that provides

easy interface with 8-bit processors. The device has

a pseudo-differential input stage.

The –IN swing of ±200 mV is useful to compensate

for ground voltage mismatch between the ADC and sensor and also to cancel common-mode noise. With

nap mode enabled, the device operates at lower

power when used at lower conversion rates. The

device is available in 48-pin TQFP package.