TUCSON, Ariz.--Texas Instruments Inc.'s Burr-Brown operation today said it was introducing the industry's fastest six-channel, simultaneous-sampling analog-to-digital converter. The new ADC chip operates at a 500-kilohertz sampling rate and is designed for motor control and power monitoring applications.
"The ADS7864 offers a single-chip solution containing dual 12-bit ADCs and three differential inputs per A/D, providing a total of six differential inputs for designers of motor control systems at a low-price," said Skip Osgood, product marketing manager for TI's Burr-Brown Data Converter Products. "These features improve performance, precision, and reliability. At 500-kHz sampling, we have bragging rights for the fastest six-channel simultaneous sampling ADC on the market," he added.
The converter uses the six input channels, grouped into three pairs, to measure all three phases of motor control or power monitoring systems. The device converts these analog signals to a digital signal, which is used by digital signal processor or microprocessors in a system.
The ADS7864 features a parallel interface with six FIFO registers. The output data for each channel is available as a 16-bit word (address and data). The ADC interfaces directly to TI's TMS320C5000 DSP processors for motor control and power monitoring applications requiring 12-bit resolution.
In quantities of 1,000, the converter costs $6.75 each. It is packaged in a 48-pin TQFP.