TI Unveils Multi-Channel, 16-Bit Data Acquisition System

7/23/2003 - Texas Instruments (TI) Incorporated (NYSE: TXN) introduced a multi-channel, 16-bit delta-sigma analog-to-digital converter (ADC) in compact MSOP and leadless QFN packages. This easy-to-use data acquisition system, from the company´s Burr-Brown product line, is designed for high-resolution measurement applications where space and power consumption are critical considerations, such as portable instrumentation, industrial process control, consumer goods, portable medical equipment and smart transmitters.

"The ADS1112 provides customers with a complete solution by integrating a low-noise, 16-bit delta-sigma ADC with an input multiplexer, onboard voltage reference, programmable gain amplifier and oscillator. In addition, TI offers this flexible, micropower device in the tiny MSOP and leadless QFN packages for space-constrained systems," said Rich Wegner, strategic marketing manager for TI's oversampling data converter products.

The ADS1112 is a self-calibrating ADC with two differential or three single-ended channels and can be configured to provide 12 to 16 bits of resolution. Conversions are performed using an onboard 2.048V reference (0.05% accuracy, 5ppm/C drift) with programmable data rates of 15, 30, 60 or 240 samples per second. An onboard programmable gain amplifier (gains up to 8) allows low-level signals to be measured with high accuracy.

The ADS1112 features low current consumption (240ľA) and can be programmed to automatically power down after a conversion to reduce consumption. The device uses an I2CTM interface and operates from a single 2.7V to 5.5V power supply.

Available Today
The ADS1112 is priced from $2.49 in 1,000 piece quantities (suggested resale pricing). The MSOP-10 package version is available now from TI and its authorized distributors. The leadless QFN package will be available in 3Q03.

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