ADS7844 - 12 位 8 通道串行输出采样模数转换器

ADS7844是TI德州仪器公司的一款精密ADC(<=10MSPS)产品，ADS7844是12 位 8 通道串行输出采样模数转换器，本站介绍了ADS7844的封装应用图解、特点和优点、功能等，并给出了与ADS7844相关的TI元器件型号供参考。

ADS7844 - 12 位 8 通道串行输出采样模数转换器 - 精密ADC(<=10MSPS) - 模数转换器 - 德州仪器

产品描述

The ADS7844 is an 8-channel, 12-bit sampling analog-to-digital converter (ADC) with a synchronous serial interface. Typical power dissipation is 3mW at a 200kHz throughput rate and a +5V supply. The reference voltage (VREF) can be varied between 100mV and VCC, providing a corresponding input voltage range of 0V to VREF. The device includes a shutdown mode which reduces power dissipation to under 1µW. The ADS7844 is guaranteed down to 2.7V operation.

Low power, high speed, and on-board multiplexer make the ADS7844 ideal for battery- operated systems such as personal digital assistants, portable multichannel data loggers, and measurement equipment. The serial interface also provides low-cost isolation for remote data acquisition. The ADS7844 is available in a 20-lead QSOP package and the MAX147 equivalent 20-lead SSOP is guaranteed over the –40°C to +85°C temperature range.

产品特性

SINGLE SUPPLY: 2.7V to 5V
8-CHANNEL SINGLE-ENDED OR 4-CHANNEL DIFFERENTIAL INPUT
UP TO 200kHz CONVERSION RATE
±1 LSB MAX INL AND DNL
NO MISSING CODES
72dB SINAD
SERIAL INTERFACE
20-LEAD QSOP AND 20-LEAD SSOP PACKAGES
ALTERNATE SOURCE FOR MAX147
APPLICATIONS
- DATA ACQUISITION
- TEST AND MEASUREMENT
- INDUSTRIAL PROCESS CONTROL
- PERSONAL DIGITAL ASSISTANTS
- BATTERY-POWERED SYSTEMS

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