Six ADCs in one

Texas Instruments has introduced what it claims is the industry’s first 16-bit analog-to-digital converter to feature six independent ADCs in one package.

Texas Instruments has introduced what it claims is the industry’s first 16-bit analog-to-digital converter (ADC) to feature six independent ADCs in one package.

The device, from the company’s Burr-Brown product line, allows high signal throughput and simultaneous sampling in motor control, multi-axis positioning, power monitoring and optical networking applications.

The ADS8364 provides 250kSPS simultaneous sampling and conversion of all six input channels with a power consumption of 69mW/channel and a 2.7V to 5.5V digital interface voltage. The device includes six high-speed sample-and-holds, six high-speed ADCs, a reference and three reference buffers, and an on-board FIFO to allow it to be interfaced to DSPs and MCUs.

The ADS8364 is specified to have 14-bit no missing codes with a 5V supply, and also offers +/-3 LSB INL, +/-1.5 LSB DNL and -92dB distortion at 100kHz.

Inputs to the sample-and-hold amplifiers are fully differential and maintained differential to the input of the ADC. This provides common-mode rejection of 80dB at 50kHz, which is important in high-noise environments such as motor control and power conversion.

The ADS8364 offers a high-speed parallel interface with a direct address or cycle mode and an on-board FIFO. The output data for each channel is available as an 8-bit or 16-bit word.

The ADS8364 comes in a TQFP-64 package, and is available now from TI and its authorised distributors. Suggested resale pricing is $17.21 in 1,000 piece quantities.

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