ADS8344

ADS8344 ¤ ADS8344 ¤ ADS8344 SBAS139E – SEPTEMBER 2000 – REVISED SEPTEMBER 2006 16-Bit, 8-Channel Serial Output Sampling ANALOG-TO-DIGITAL CONVERTER FEATURES q PIN FOR PIN WITH ADS7844 q SINGLE SUPPLY: 2.7V to 5V q 8-CHANNEL SINGLE-ENDED OR 4-CHANNEL DIFFERENTIAL INPUT q UP TO 100kHz CONVERSION RATE q 84dB SINAD q SERIAL INTERFACE q QSOP-20 AND SSOP-20 PACKAGES APPLICATIONS q DATA ACQUISITION q TEST AND MEASUREMENT EQUIPMENT q INDUSTRIAL PROCESS CONTROL q PERSONAL DIGITAL ASSISTANTS q BATTERY-POWERED SYSTEMS DESCRIPTION The ADS8344 is an 8-channel, 16-bit, sampling Analog-to-Digital (A/D) converter with a synchronous serial interface. Typical power dissipation is 10mW at a 100kHz throughput rate and a +5V supply. The reference voltage (VREF) can be varied between 500mV and VCC, providing a corresponding input voltage range of 0V to VREF. The device includes a shutdown mode that reduces power dissipation to under 15µW. The ADS8344 is tested down to 2.7V operation. Low power, high speed, and an on-board multiplexer make the ADS8344 ideal for battery-operated systems such as personal digital assistants, portable multi-channel data loggers, and measurement equipment. The serial interface also provides low-cost isolation for remote data acquisition. The ADS8344 is available in a QSOP-20 or SSOP-20 package and is ensured over the –40°C to +85°C temperature range. CH0 CH1 CH2 CH3 COM ADS8341 ADS8343 4-Channel Multiplexer CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 COM VREF ADS8344 ADS834...