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12-Bit, 4-Channel Parallel Output Sampling Analog-to-Digital Converter (Rev. C)
Texas Instruments

Description
The ADS7842 is a complete, 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 200kHz sampling rate while dissipating only 2mW of power. The reference voltage can be varied from 100mV to VCC with a corresponding LSB resolution from 24?V to 1.22mV. 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 -40C to +85C temperature range.
Features
SINGLE SUPPLY: 2.7V to 5V 4-CHANNEL INPUT MULTIPLEXER UP TO 200kHz SAMPLING RATE FULL 12-BIT PARALLEL INTERFACE 1LSB INL AND DNL NO MISSING CODES 72dB SINAD LOW POWER:2mW SSOP-28 PACKAGE APPLICATIONS DATA ACQUISITION TEST AND MEASUREMENT INDUSTRIAL PROCESS CONTROL MEDICAL INSTRUMENTS LABORATORY EQUIPMENT All trademarks are the property of their respective owners.

Related Datasheets
Part Number Description Category
? ?ADS7841 ADS7841: 12-Bit, 4-Channel Serial Output Sampling Analog-to-Digital Converter (Rev. B) Cards and Modules
? ?ADS8344 16-Bit, 8-Channel Serial Output Sampling Analog-to-Digital Converter (Rev. E) Cards and Modules



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