ADS7841

ADS7841 ADS7841 ADS7841 SBAS084B – JULY 2001 12-Bit, 4-Channel Serial Output Sampling ANALOG-TO-DIGITAL CONVERTER FEATURES q SINGLE SUPPLY: 2.7V to 5V q 4-CHANNEL SINGLE-ENDED OR 2-CHANNEL DIFFERENTIAL INPUT q UP TO 200kHz CONVERSION RATE q ±1LSB MAX INL AND DNL q NO MISSING CODES q 72dB SINAD q SERIAL INTERFACE q DIP-16 OR SSOP-16 PACKAGE q ALTERNATE SOURCE FOR MAX1247 q ADS7841ES: +125°C Version APPLICATIONS q DATA ACQUISITION q TEST AND MEASUREMENT q INDUSTRIAL PROCESS CONTROL q PERSONAL DIGITAL ASSISTANTS q BATTERY-POWERED SYSTEMS DESCRIPTION The ADS7841 is a 4-channel, 12-bit sampling Analog-toDigital Converter (ADC) with a synchronous serial interface. The resolution is programmable to either 8 bits or 12 bits. Typical power dissipation is 2mW 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 15µW. The ADS7841 is tested down to 2.7V operation. Low power, high speed, and on-board multiplexer make the ADS7841 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 ADS7841 is available in a DIP-16 or a SSOP-16 package and is specified over the –40°C to +125°C(1) temperature range. NOTE: (1) ES grade only. ...