ADS7842 Datasheet | Burr-Brown

SBAS103C - SEPTEMBER 2000 - REVISED OCTOBER 2006 12-Bit, 4-Channel Parallel Output Sampling ANALOG-TO-DIGITAL CONVERTER Features q SINGLE SUPPLY: 2.7V to 5V q 4-CHANNEL INPUT MULTIPLEXER q UP TO 200k Hz SAMPLING RATE q FULL 12-BIT PARALLEL INTERFACE q ±1LSB INL AND DNL q NO MISSING CODES q 72d B SINAD q LOW POWER: 2m W q SSOP-28 PACKAGE APPLICATIONS q DATA ACQUISITION q TEST AND MEASUREMENT q INDUSTRIAL PROCESS CONTROL q MEDICAL INSTRUMENTS q LABORATORY EQUIPMENT DESCRIPTION The ADS7842 is a plete, 4-channel, 12-bit Analog-to Digital Converter (ADC). It contains a 12-bit, capacitorbased, Successive Approximation Register (SAR) ADC with a sample-and-hold amplifier, interface for microprocessor use, and parallel, 3-state output drivers. The ADS7842 is specified at a 200k Hz sampling rate while dissipating only 2m W of power. The reference voltage can be varied from 100m V to VCC with a corresponding LSB resolution from 24µV to 1.22m V. The ADS7842 is tested down to 2.7V operation. Low power, high speed, and an onboard multiplexer make the ADS7842 ideal for battery-operated systems such as portable, multi-channel dataloggers and measurement equipment. The ADS7842 is available in an SSOP-28 package and is tested over the - 40°C to +85°C temperature range. AIN0 AIN1 AIN2 AIN3 VREF A0 A1 4-Channel MUX CDAC parator Output Latches and 3-State Drivers 3-State Parallel Data Bus CLK BUSY WR CS RD Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. .ti. Copyright © 2000-2006,...